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1501.02593
Ronak M Soni
Sudip Ghosh, Ronak M. Soni and Sandip P. Trivedi
On The Entanglement Entropy For Gauge Theories
29 pages, 4 figures; section on Extended Lattice Construction revised and some changes in referencing; some of the discussion of the replica trick changed; section on SU(2) revised for clarity
JHEP 1509 (2015) 069
10.1007/JHEP09(2015)069
TIFR/TH/15-03
hep-th cond-mat.stat-mech quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a definition for the entanglement entropy of a gauge theory on a spatial lattice. Our definition applies to any subset of links in the lattice, and is valid for both Abelian and Non-Abelian gauge theories. For $\mathbb{Z}_N$ and $U(1)$ theories, without matter, our definition agrees with a particular case of the definition given by Casini, Huerta and Rosabal. We also argue that in general, both for Abelian and Non-Abelian theories, our definition agrees with the entanglement entropy calculated using a definition of the replica trick. Our definition, however, does not agree with some standard ways to measure entanglement, like the number of Bell pairs which can be produced by entanglement distillation.
[ { "created": "Mon, 12 Jan 2015 10:26:22 GMT", "version": "v1" }, { "created": "Tue, 27 Jan 2015 10:06:39 GMT", "version": "v2" }, { "created": "Tue, 7 Apr 2015 08:32:22 GMT", "version": "v3" }, { "created": "Tue, 21 Jul 2015 06:09:36 GMT", "version": "v4" } ]
2015-09-21
[ [ "Ghosh", "Sudip", "" ], [ "Soni", "Ronak M.", "" ], [ "Trivedi", "Sandip P.", "" ] ]
We propose a definition for the entanglement entropy of a gauge theory on a spatial lattice. Our definition applies to any subset of links in the lattice, and is valid for both Abelian and Non-Abelian gauge theories. For $\mathbb{Z}_N$ and $U(1)$ theories, without matter, our definition agrees with a particular case of the definition given by Casini, Huerta and Rosabal. We also argue that in general, both for Abelian and Non-Abelian theories, our definition agrees with the entanglement entropy calculated using a definition of the replica trick. Our definition, however, does not agree with some standard ways to measure entanglement, like the number of Bell pairs which can be produced by entanglement distillation.
5.286919
5.395139
5.771304
5.123676
5.161698
4.912192
5.400331
5.108336
5.078514
5.775505
5.243229
5.128547
5.256339
5.232556
5.294692
5.319021
5.230577
5.125333
5.225575
5.376845
5.270935
0909.0693
John Morris
J.R. Morris
Radion clouds around evaporating black holes
15 pages; 3 figures
Phys.Rev.D80:045014,2009
10.1103/PhysRevD.80.045014
null
hep-th gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A Kaluza-Klein model, with a matter source associated with Hawking radiation from an evaporating black hole, is used to obtain a simple form for the radion effective potential. The environmental effect generally causes a matter-induced shift of the radion vacuum, resulting in the formation of a radion cloud around the hole. There is an albedo due to the radion cloud, with an energy dependent reflection coefficient that depends upon the size of the extra dimensions and the temperature of the hole.
[ { "created": "Thu, 3 Sep 2009 15:53:39 GMT", "version": "v1" } ]
2010-04-22
[ [ "Morris", "J. R.", "" ] ]
A Kaluza-Klein model, with a matter source associated with Hawking radiation from an evaporating black hole, is used to obtain a simple form for the radion effective potential. The environmental effect generally causes a matter-induced shift of the radion vacuum, resulting in the formation of a radion cloud around the hole. There is an albedo due to the radion cloud, with an energy dependent reflection coefficient that depends upon the size of the extra dimensions and the temperature of the hole.
13.275337
11.55388
12.348187
11.194445
12.003108
12.924208
12.565108
11.333187
12.075715
12.158953
12.456408
12.096335
11.451392
11.878293
11.916561
12.382814
12.024702
11.958684
11.501493
11.797309
11.843819
0810.4699
Ronald Reid-Edwards
R A Reid-Edwards and B Spanjaard
N=4 Gauged Supergravity from Duality-Twist Compactifications of String Theory
59 pages, typos corrected
JHEP 0812:052,2008
10.1088/1126-6708/2008/12/052
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the lifting of half-maximal four-dimensional gauged supergravities to compactifications of string theory. It is shown that a class of such supergravities can arise from compactifications of IIA string theory on manifolds of SU(2)-structure which may be thought of as K3 fibrations over T^2. Examples of these SU(2)-structure backgrounds, as smooth K3 bundles and as compactifications with H-flux, are given and we also find evidence for a class of non-geometric, Mirror-fold backgrounds. By applying the duality between IIA string theory on K3 and Heterotic string theory on T^4 fibrewise, we argue that these SU(2)-structure backgrounds are dual to Heterotic compactifications on a class T^4 fibrations over T^2. Examples of these fibrations as twisted tori, H-flux and T-fold compactifications are given. We also construct a new set of backgrounds, particular to Heterotic string theory, which includes a previously unknown class of Heterotic T-folds. A sigma model description of these backgrounds, from the Heterotic perspective, is presented in which we generalize the Bosonic doubled formalism to Heterotic string theory.
[ { "created": "Sun, 26 Oct 2008 16:11:00 GMT", "version": "v1" }, { "created": "Thu, 27 Aug 2009 09:22:47 GMT", "version": "v2" } ]
2009-08-27
[ [ "Reid-Edwards", "R A", "" ], [ "Spanjaard", "B", "" ] ]
We investigate the lifting of half-maximal four-dimensional gauged supergravities to compactifications of string theory. It is shown that a class of such supergravities can arise from compactifications of IIA string theory on manifolds of SU(2)-structure which may be thought of as K3 fibrations over T^2. Examples of these SU(2)-structure backgrounds, as smooth K3 bundles and as compactifications with H-flux, are given and we also find evidence for a class of non-geometric, Mirror-fold backgrounds. By applying the duality between IIA string theory on K3 and Heterotic string theory on T^4 fibrewise, we argue that these SU(2)-structure backgrounds are dual to Heterotic compactifications on a class T^4 fibrations over T^2. Examples of these fibrations as twisted tori, H-flux and T-fold compactifications are given. We also construct a new set of backgrounds, particular to Heterotic string theory, which includes a previously unknown class of Heterotic T-folds. A sigma model description of these backgrounds, from the Heterotic perspective, is presented in which we generalize the Bosonic doubled formalism to Heterotic string theory.
7.470775
7.29934
8.686571
6.865295
7.611832
7.584657
7.845008
7.073344
7.306718
8.815155
7.006444
7.174744
7.352876
7.010273
7.040515
7.069941
7.158345
6.931352
7.129022
7.596005
7.078918
hep-th/9308062
Sunil Mukhi
Debashis Ghoshal, Porus Lakdawala and Sunil Mukhi
Perturbation of the Ground Varieties of C = 1 String Theory
15 pages, TIFR/TH/93-36, phyzzx macro.(A clarification added in Introduction, and a few references added)
Mod.Phys.Lett.A8:3187-3200,1993
10.1142/S0217732393002129
null
hep-th
null
We discuss the effect of perturbations on the ground rings of $c=1$ string theory at the various compactification radii defining the $A_N$ points of the moduli space. We argue that perturbations by plus-type moduli define ground varieties which are equivalent to the unperturbed ones under redefinitions of the coordinates and hence cannot smoothen the singularity. Perturbations by the minus-type moduli, on the other hand, lead to semi-universal deformations of the singular varieties that can smoothen the singularity under certain conditions. To first order, the cosmological perturbation by itself can remove the singularity only at the self-dual ($A_1$) point.}
[ { "created": "Fri, 13 Aug 1993 09:26:32 GMT", "version": "v1" }, { "created": "Mon, 23 Aug 1993 21:44:40 GMT", "version": "v2" } ]
2010-11-01
[ [ "Ghoshal", "Debashis", "" ], [ "Lakdawala", "Porus", "" ], [ "Mukhi", "Sunil", "" ] ]
We discuss the effect of perturbations on the ground rings of $c=1$ string theory at the various compactification radii defining the $A_N$ points of the moduli space. We argue that perturbations by plus-type moduli define ground varieties which are equivalent to the unperturbed ones under redefinitions of the coordinates and hence cannot smoothen the singularity. Perturbations by the minus-type moduli, on the other hand, lead to semi-universal deformations of the singular varieties that can smoothen the singularity under certain conditions. To first order, the cosmological perturbation by itself can remove the singularity only at the self-dual ($A_1$) point.}
10.91661
10.509147
12.823909
10.083286
10.617935
11.980079
11.677524
11.232497
10.686873
12.507477
10.0807
10.337835
11.314099
10.630965
10.172051
10.586896
10.308932
10.703581
10.470515
11.436029
10.406775
0706.0398
Harold Steinacker
Harold Steinacker, George Zoupanos
Fermions on spontaneously generated spherical extra dimensions
34 pages. V2: references added, minor corrections V3: discussion added, final version
JHEP 0709:017,2007
10.1088/1126-6708/2007/09/017
UWThPh-2007-15
hep-th hep-ph
null
We include fermions to the model proposed in hep-th/0606021, and obtain a renormalizable 4-dimensional SU(N) gauge theory which spontaneously generates fuzzy extra dimensions and behaves like Yang-Mills theory on M^4 \times S^2. We find a truncated tower of fermionic Kaluza-Klein states transforming under the low-energy gauge group, which is found to be either SU(n), or SU(n_1) x SU(n_2) x U(1). The latter case implies a nontrivial U(1) flux on S^2, leading to would-be zero modes for the bifundamental fermions. In the non-chiral case they may pair up to acquire a mass, and the emerging picture is that of mirror fermions. We discuss the possible implementation of a chirality constraint in 6 dimensions, which is nontrivial at the quantum level due to the fuzzy nature of the extra dimensions.
[ { "created": "Mon, 4 Jun 2007 16:58:07 GMT", "version": "v1" }, { "created": "Thu, 12 Jul 2007 09:26:54 GMT", "version": "v2" }, { "created": "Thu, 23 Aug 2007 09:07:06 GMT", "version": "v3" } ]
2009-04-17
[ [ "Steinacker", "Harold", "" ], [ "Zoupanos", "George", "" ] ]
We include fermions to the model proposed in hep-th/0606021, and obtain a renormalizable 4-dimensional SU(N) gauge theory which spontaneously generates fuzzy extra dimensions and behaves like Yang-Mills theory on M^4 \times S^2. We find a truncated tower of fermionic Kaluza-Klein states transforming under the low-energy gauge group, which is found to be either SU(n), or SU(n_1) x SU(n_2) x U(1). The latter case implies a nontrivial U(1) flux on S^2, leading to would-be zero modes for the bifundamental fermions. In the non-chiral case they may pair up to acquire a mass, and the emerging picture is that of mirror fermions. We discuss the possible implementation of a chirality constraint in 6 dimensions, which is nontrivial at the quantum level due to the fuzzy nature of the extra dimensions.
8.920988
8.190617
8.584128
8.104018
8.766174
8.345584
8.495728
8.377003
8.275798
8.572084
8.214338
8.301579
8.521233
8.209963
8.257003
8.419126
8.230114
8.393344
8.273086
8.48105
8.100475
hep-th/9708030
null
N.O.Agasian and K.Zarembo
Phase Structure and Nonperturbative States in Three-Dimensional Adjoint Higgs Model
15pp., Revtex; 4 figures; replaced by a version to be published in Phys. Rev. D
Phys.Rev. D57 (1998) 2475-2485
10.1103/PhysRevD.57.2475
ITEP-TH-38/97
hep-th
null
The thermodynamics of 3d adjoint Higgs model is considered. We study the properties of the Polyakov loop correlators and the critical behavior at the deconfinement phase transition. Our main tool is a reduction to the 2d sine-Gordon model. The Polyakov loops appear to be connected with the soliton operators in it. The known exact results in the sine-Gordon theory allow us to study in detail the temperature dependence of the string tension, as well as to get some information about a nonperturbative dynamics in the confinement phase. We also consider the symmetry restoration at high temperature which makes it possible to construct the phase diagram of the model completely.
[ { "created": "Wed, 6 Aug 1997 12:56:46 GMT", "version": "v1" }, { "created": "Fri, 15 Aug 1997 12:36:03 GMT", "version": "v2" }, { "created": "Thu, 30 Oct 1997 14:52:53 GMT", "version": "v3" } ]
2009-10-30
[ [ "Agasian", "N. O.", "" ], [ "Zarembo", "K.", "" ] ]
The thermodynamics of 3d adjoint Higgs model is considered. We study the properties of the Polyakov loop correlators and the critical behavior at the deconfinement phase transition. Our main tool is a reduction to the 2d sine-Gordon model. The Polyakov loops appear to be connected with the soliton operators in it. The known exact results in the sine-Gordon theory allow us to study in detail the temperature dependence of the string tension, as well as to get some information about a nonperturbative dynamics in the confinement phase. We also consider the symmetry restoration at high temperature which makes it possible to construct the phase diagram of the model completely.
8.400168
7.985449
7.902007
7.449684
7.794809
7.847608
7.988631
7.485757
7.197872
8.026485
7.828095
7.543676
7.786714
7.605926
7.658913
7.441697
7.766055
7.878674
7.615411
7.754308
7.676352
hep-th/9604071
Kechkin O. V.
O.Kechkin, M.Yurova
Sp(4,R)/GL(2,R) Matrix Structure of Geodesic Solutions for Einstein--Maxwell--Dilaton--Axion Theory
20 pages, RevTex, no figures, Submitted to Phys.Rev.D
Int.J.Mod.Phys. A12 (1997) 4357-4368
10.1142/S0217751X9700236X
null
hep-th
null
The constructed $Sp(4,R)/GL(2,R)$ matrix operator defines the family of isotropic geodesic containing vacuum point lines in the target space of the stationary D=4 Einstein--Maxwell--dilaton--axion theory. This operator is used to derive a class of solutions which describes a point center system with nontrivial values of mass, parameter NUT, as well as electric, magnetic, dilaton and axion charges. It is shown that this class contains both particular solutions Majumdar--Papapetrou--like black holes and massless asymptotically nonflat naked singularities.
[ { "created": "Sun, 14 Apr 1996 09:58:48 GMT", "version": "v1" } ]
2009-10-30
[ [ "Kechkin", "O.", "" ], [ "Yurova", "M.", "" ] ]
The constructed $Sp(4,R)/GL(2,R)$ matrix operator defines the family of isotropic geodesic containing vacuum point lines in the target space of the stationary D=4 Einstein--Maxwell--dilaton--axion theory. This operator is used to derive a class of solutions which describes a point center system with nontrivial values of mass, parameter NUT, as well as electric, magnetic, dilaton and axion charges. It is shown that this class contains both particular solutions Majumdar--Papapetrou--like black holes and massless asymptotically nonflat naked singularities.
15.917063
17.072226
16.949856
14.285344
15.018072
14.901399
15.091005
14.537227
14.929379
17.080734
15.171939
14.406408
14.869267
14.514481
14.541342
15.136791
14.185163
15.585682
14.086245
15.622841
14.429433
hep-th/0608087
Jose M. Isidro
J. M. Isidro, M. A. de Gosson
Abelian gerbes as a gauge theory of quantum mechanics on phase space
18 pages, 1 figure available from the authors upon request
J.Phys.A40:3549-3568,2007
10.1088/1751-8113/40/13/016
null
hep-th math-ph math.MP
null
We construct a U(1) gerbe with a connection over a finite-dimensional, classical phase space P. The connection is given by a triple of forms A,B,H: a potential 1-form A, a Neveu-Schwarz potential 2-form B, and a field-strength 3-form H=dB. All three of them are defined exclusively in terms of elements already present in P, the only external input being Planck's constant h. U(1) gauge transformations acting on the triple A,B,H are also defined, parametrised either by a 0-form or by a 1-form. While H remains gauge invariant in all cases, quantumness vs. classicality appears as a choice of 0-form gauge for the 1-form A. The fact that [H]/2i\pi is an integral class in de Rham cohomology is related with the discretisation of symplectic area on P. This is an equivalent, coordinate-free reexpression of Heisenberg's uncertainty principle. A choice of 1-form gauge for the 2-form B relates our construction with generalised complex structures on classical phase space. Altogether this allows one to interpret the quantum mechanics corresponding to P as an Abelian gauge theory.
[ { "created": "Mon, 14 Aug 2006 10:30:49 GMT", "version": "v1" } ]
2008-11-26
[ [ "Isidro", "J. M.", "" ], [ "de Gosson", "M. A.", "" ] ]
We construct a U(1) gerbe with a connection over a finite-dimensional, classical phase space P. The connection is given by a triple of forms A,B,H: a potential 1-form A, a Neveu-Schwarz potential 2-form B, and a field-strength 3-form H=dB. All three of them are defined exclusively in terms of elements already present in P, the only external input being Planck's constant h. U(1) gauge transformations acting on the triple A,B,H are also defined, parametrised either by a 0-form or by a 1-form. While H remains gauge invariant in all cases, quantumness vs. classicality appears as a choice of 0-form gauge for the 1-form A. The fact that [H]/2i\pi is an integral class in de Rham cohomology is related with the discretisation of symplectic area on P. This is an equivalent, coordinate-free reexpression of Heisenberg's uncertainty principle. A choice of 1-form gauge for the 2-form B relates our construction with generalised complex structures on classical phase space. Altogether this allows one to interpret the quantum mechanics corresponding to P as an Abelian gauge theory.
9.141441
10.168807
10.988971
9.471964
10.605343
10.121786
10.34848
9.446221
9.554036
10.920673
9.807462
9.203423
9.632827
9.125744
9.331207
8.999035
9.304315
9.018585
9.250496
9.888331
8.984037
hep-th/9408063
Swapna Mahapatra
Swapna Mahapatra and Sudipta Mukherji
Tachyon Condensates and Anisotropic Universe
12 pages, IC/94/116, IMSC/94/31
Mod.Phys.Lett. A10 (1995) 183-192
10.1142/S0217732395000211
null
hep-th
null
We investigate the cosmological solutions in closed bosonic string theory in the presence of non zero tachyon condensate. We specifically obtain time dependent solutions which describe an anisotropic universe. We also discuss the nature of such time dependent solutions when small tachyon fluctuations around the condensate are taken into account.
[ { "created": "Wed, 10 Aug 1994 22:05:49 GMT", "version": "v1" } ]
2009-10-28
[ [ "Mahapatra", "Swapna", "" ], [ "Mukherji", "Sudipta", "" ] ]
We investigate the cosmological solutions in closed bosonic string theory in the presence of non zero tachyon condensate. We specifically obtain time dependent solutions which describe an anisotropic universe. We also discuss the nature of such time dependent solutions when small tachyon fluctuations around the condensate are taken into account.
8.974001
7.001759
7.758695
6.64516
7.129292
7.536821
7.180461
6.990127
6.907224
8.796115
7.310765
7.689148
8.266366
7.651197
7.741621
7.87941
7.607238
7.732662
7.992702
8.811938
7.473057
1601.05625
Patricio Gaete
Patricio Gaete and Jos\'e A. Helay\"el-Neto
Aspects of screening and confinement in a topologically massive $U{\left( 1 \right)_{\cal W}} \times U{(1)_{\cal Y}}$ Chern-Simons-Higgs theory
11 pages, to appear in AHEP
null
null
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By using the gauge-invariant but path-dependent, variables formalism, we consider a recently proposed topologically massive $U{\left( 1 \right)_{\cal W}} \times U{(1)_{\cal Y}}$ Chern-Simons-Higgs theory in $2+1$ dimensions. In particular, we inspect the impact of a Chern-Simons mixing term between two Abelian gauge fields on physical observables. We pursue our investigation by analysing the model in two different situations. In the first case, where we integrate out the massive excitation and consider an effective model for the massless field, we show that the interaction energy contains a linear term leading to the confinement of static charge probes along with a screening contribution. The second situation, where the massless field can be exactly integrated over with its constraint duly taken into account, the interesting feature is that the resulting effective model describes a purely screening phase, without any trace of a confining regime.
[ { "created": "Thu, 21 Jan 2016 13:34:16 GMT", "version": "v1" }, { "created": "Mon, 25 Jan 2016 21:01:26 GMT", "version": "v2" }, { "created": "Wed, 13 Apr 2016 17:42:20 GMT", "version": "v3" } ]
2016-04-14
[ [ "Gaete", "Patricio", "" ], [ "Helayël-Neto", "José A.", "" ] ]
By using the gauge-invariant but path-dependent, variables formalism, we consider a recently proposed topologically massive $U{\left( 1 \right)_{\cal W}} \times U{(1)_{\cal Y}}$ Chern-Simons-Higgs theory in $2+1$ dimensions. In particular, we inspect the impact of a Chern-Simons mixing term between two Abelian gauge fields on physical observables. We pursue our investigation by analysing the model in two different situations. In the first case, where we integrate out the massive excitation and consider an effective model for the massless field, we show that the interaction energy contains a linear term leading to the confinement of static charge probes along with a screening contribution. The second situation, where the massless field can be exactly integrated over with its constraint duly taken into account, the interesting feature is that the resulting effective model describes a purely screening phase, without any trace of a confining regime.
10.428514
8.87284
11.051911
8.793645
9.500756
9.310664
9.466693
8.544601
8.796114
10.701034
8.938783
9.308046
10.080157
9.460206
10.05225
9.521326
9.649853
9.407274
9.462584
10.036976
9.521024
hep-th/9911037
Alexander Gorsky
A. Gorsky
Dualities in integrable systems and N=2 theories
16 pages, Latex, Talk given at QFTHEP-99, Moscow, May 27-June 2
J.Phys.A34:2389-2402,2001
10.1088/0305-4470/34/11/329
null
hep-th
null
We discuss dualities of the integrable dynamics behind the exact solution to the N=2 SUSY YM theory. It is shown that T duality in the string theory is related to the separation of variables procedure in dynamical system. We argue that there are analogues of S duality as well as 3d mirror symmetry in the many-body systems of Hitchin type governing low-energy effective actions.
[ { "created": "Fri, 5 Nov 1999 15:08:15 GMT", "version": "v1" } ]
2008-11-26
[ [ "Gorsky", "A.", "" ] ]
We discuss dualities of the integrable dynamics behind the exact solution to the N=2 SUSY YM theory. It is shown that T duality in the string theory is related to the separation of variables procedure in dynamical system. We argue that there are analogues of S duality as well as 3d mirror symmetry in the many-body systems of Hitchin type governing low-energy effective actions.
15.511556
12.959469
17.264542
12.908661
12.496091
12.938405
11.890574
13.28392
12.577305
17.506128
12.593575
13.90184
15.385406
14.176945
14.19946
13.531378
13.923736
14.353935
13.562888
15.314847
13.291584
hep-th/0408066
Sergey V. Shadchin
Sergey Shadchin
Saddle point equations in Seiberg-Witten theory
46 pages, 4 figures
JHEP0410:033,2004
10.1088/1126-6708/2004/10/033
IHES/P/04/38
hep-th
null
N=2 supersymmetric Yang-Mills theories for all classical gauge groups, that is, for SU(N), SO(N), and Sp(N) is considered. The equations which define the Seiberg-Witten curve are proposed. In some cases they are solved. It is shown that for (almost) all models allowed by the asymptotic freedom the 1-instanton corrections which follows from these equations agree with the direct computations and with known results.
[ { "created": "Mon, 9 Aug 2004 13:50:31 GMT", "version": "v1" } ]
2008-11-26
[ [ "Shadchin", "Sergey", "" ] ]
N=2 supersymmetric Yang-Mills theories for all classical gauge groups, that is, for SU(N), SO(N), and Sp(N) is considered. The equations which define the Seiberg-Witten curve are proposed. In some cases they are solved. It is shown that for (almost) all models allowed by the asymptotic freedom the 1-instanton corrections which follows from these equations agree with the direct computations and with known results.
9.800685
7.379997
10.264496
7.174916
8.720479
8.139535
8.394645
7.104589
7.50858
10.26239
7.35366
7.448861
8.927833
7.826087
8.038575
7.750309
8.106208
7.596693
7.91897
8.470003
7.882311
hep-th/0207220
Victor O. Rivelles
H.O. Girotti, M. Gomes, A.Yu. Petrov, V.O. Rivelles and A.J. da Silva
Spontaneous Symmetry Breaking in Noncommutative Field Theory
17 pages, 6 figues, revtex, (V2) acknowledgment added, (v3) minor changes
Phys.Rev. D67 (2003) 125003
10.1103/PhysRevD.67.125003
null
hep-th
null
The spontaneous symmetry breaking of rotational O(N) symmetry in noncommutative field theory is investigated in a 2+1 dimensional model of scalar fields coupled through a combination of quartic and sextuple self-interactions. There are five possible orderings of the fields in the sextuple interaction and two for the quartic interaction. At one loop, we prove that for some choices of these orderings there is the absence of IR/UV mixing and the appearance of massless excitations. A supersymmetric extension of the model is also studied. Supersymmetry puts additional constraints on the couplings but for any given N there is a Moyal ordering of the superfields for which the requirement for the existence of Goldstone bosons is satisfied. For some ordering and when N goes to infinity we find evidence that the model is renormalizable to all orders in perturbation theory. We also consider a generic chiral model in 3+1 dimensions whose superpotential is invariant under local gauge transformations. We find that for any value of N there is no one loop correction to the pion mass and that, at two loops, there are no pion mass corrections for slowly varying superfields so that Goldstone theorem holds true. We also find a new purely noncommutative coupling which gives contributions starting at order N-2 loops.
[ { "created": "Wed, 24 Jul 2002 13:35:06 GMT", "version": "v1" }, { "created": "Thu, 1 Aug 2002 18:58:09 GMT", "version": "v2" }, { "created": "Tue, 26 Nov 2002 16:44:19 GMT", "version": "v3" } ]
2009-11-07
[ [ "Girotti", "H. O.", "" ], [ "Gomes", "M.", "" ], [ "Petrov", "A. Yu.", "" ], [ "Rivelles", "V. O.", "" ], [ "da Silva", "A. J.", "" ] ]
The spontaneous symmetry breaking of rotational O(N) symmetry in noncommutative field theory is investigated in a 2+1 dimensional model of scalar fields coupled through a combination of quartic and sextuple self-interactions. There are five possible orderings of the fields in the sextuple interaction and two for the quartic interaction. At one loop, we prove that for some choices of these orderings there is the absence of IR/UV mixing and the appearance of massless excitations. A supersymmetric extension of the model is also studied. Supersymmetry puts additional constraints on the couplings but for any given N there is a Moyal ordering of the superfields for which the requirement for the existence of Goldstone bosons is satisfied. For some ordering and when N goes to infinity we find evidence that the model is renormalizable to all orders in perturbation theory. We also consider a generic chiral model in 3+1 dimensions whose superpotential is invariant under local gauge transformations. We find that for any value of N there is no one loop correction to the pion mass and that, at two loops, there are no pion mass corrections for slowly varying superfields so that Goldstone theorem holds true. We also find a new purely noncommutative coupling which gives contributions starting at order N-2 loops.
8.791349
9.425447
9.646699
8.800512
9.347376
9.043274
9.287848
9.195735
8.517049
10.313013
8.899895
8.835011
8.763241
8.562778
8.528352
8.582035
8.751081
8.652107
8.539978
8.986192
8.526237
hep-th/9609231
Eduardo Marino
E.C. Marino
Duality and an Operator Realization for the Fermi-Bose Transmutation in 3+1 Dimensions
Latex, 8 pages
Phys.Lett. B393 (1997) 383-386
10.1016/S0370-2693(96)01644-9
null
hep-th
null
We consider the Maxwell-Higgs system in the broken phase, described in terms of a Kalb-Ramond field interacting with the electromagnetic field through a topological coupling. We then study the creation operators of states which respectively carry a point charge and a closed magnetic string in the electromagnetic language or a point topological charge and a closed Kalb-Ramond charged string in the Kalb-Ramond dual language. Their commutation relation is evaluated, implying they satisfy a dual algebra and their composite possesses generalized statistics. In the local limit where the radius of the string vanishes, only Fermi or Bose statistics are allowed. This provides an explicit operator realization for statistical transmutation in 3+1D.
[ { "created": "Mon, 30 Sep 1996 15:03:30 GMT", "version": "v1" } ]
2009-10-30
[ [ "Marino", "E. C.", "" ] ]
We consider the Maxwell-Higgs system in the broken phase, described in terms of a Kalb-Ramond field interacting with the electromagnetic field through a topological coupling. We then study the creation operators of states which respectively carry a point charge and a closed magnetic string in the electromagnetic language or a point topological charge and a closed Kalb-Ramond charged string in the Kalb-Ramond dual language. Their commutation relation is evaluated, implying they satisfy a dual algebra and their composite possesses generalized statistics. In the local limit where the radius of the string vanishes, only Fermi or Bose statistics are allowed. This provides an explicit operator realization for statistical transmutation in 3+1D.
14.56602
15.8139
15.651073
14.79411
14.539983
14.335958
14.332463
14.098418
14.350999
15.181643
14.147518
14.298483
14.352042
13.950273
14.378315
14.352993
14.101367
14.308018
14.322372
14.822411
14.103929
1703.00018
Grant Remmen
Ning Bao, Grant N. Remmen
Bulk Connectedness and Boundary Entanglement
12 pages, 2 figures
EPL 121 (2018) 60007
10.1209/0295-5075/121/60007
CALT-TH-2017-011
hep-th gr-qc quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We prove, for any state in a conformal field theory defined on a set of boundary manifolds with corresponding classical holographic bulk geometry, that for any bipartition of the boundary into two non-clopen sets, the density matrix cannot be a tensor product of the reduced density matrices on each region of the bipartition. In particular, there must be entanglement across the bipartition surface. We extend this no-go theorem to general, arbitrary partitions of the boundary manifolds into non-clopen parts, proving that the density matrix cannot be a tensor product. This result gives a necessary condition for states to potentially correspond to holographic duals.
[ { "created": "Tue, 28 Feb 2017 19:00:05 GMT", "version": "v1" }, { "created": "Mon, 24 Apr 2017 18:52:53 GMT", "version": "v2" }, { "created": "Tue, 29 Aug 2017 16:38:06 GMT", "version": "v3" }, { "created": "Fri, 18 May 2018 17:03:50 GMT", "version": "v4" } ]
2018-05-21
[ [ "Bao", "Ning", "" ], [ "Remmen", "Grant N.", "" ] ]
We prove, for any state in a conformal field theory defined on a set of boundary manifolds with corresponding classical holographic bulk geometry, that for any bipartition of the boundary into two non-clopen sets, the density matrix cannot be a tensor product of the reduced density matrices on each region of the bipartition. In particular, there must be entanglement across the bipartition surface. We extend this no-go theorem to general, arbitrary partitions of the boundary manifolds into non-clopen parts, proving that the density matrix cannot be a tensor product. This result gives a necessary condition for states to potentially correspond to holographic duals.
8.566756
8.848583
8.315222
8.175107
8.607135
8.915583
8.85495
8.39606
8.534302
9.674558
8.42284
8.190451
7.96747
7.998837
7.976544
7.974945
7.984341
8.247499
7.899014
8.192117
8.010295
2311.12432
Yakov Shnir
R.Kirichenkov, J. Kunz, Nobuyuki Sawado and Ya. Shnir
Skyrmions and pion stars in the $U(1)$ gauged Einstein-Skyrme model
21 pages, 9 figures
null
null
null
hep-th gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider topological and non-topological regular soliton solutions in the Einstein-Maxwell-Skyrme theory. We analyze the properties of these solutions and determine their domains of existence. The dependence of the solutions on the gauge coupling and on the strength of the effective gravitational coupling are examined. Topologically trivial localized field configurations, \textit{pion stars}, are shown to exist, as non-linear gravitational bound states of the Skyrme field. Both spherically-symmetric and axially-symmetric pion stars are considered. We find that these solutions share many features with the usual (mini-)boson stars. In particular they also exhibit a spiraling behavior and do not possess a flat space limit.
[ { "created": "Tue, 21 Nov 2023 08:43:46 GMT", "version": "v1" } ]
2023-11-22
[ [ "Kirichenkov", "R.", "" ], [ "Kunz", "J.", "" ], [ "Sawado", "Nobuyuki", "" ], [ "Shnir", "Ya.", "" ] ]
We consider topological and non-topological regular soliton solutions in the Einstein-Maxwell-Skyrme theory. We analyze the properties of these solutions and determine their domains of existence. The dependence of the solutions on the gauge coupling and on the strength of the effective gravitational coupling are examined. Topologically trivial localized field configurations, \textit{pion stars}, are shown to exist, as non-linear gravitational bound states of the Skyrme field. Both spherically-symmetric and axially-symmetric pion stars are considered. We find that these solutions share many features with the usual (mini-)boson stars. In particular they also exhibit a spiraling behavior and do not possess a flat space limit.
9.212021
7.489892
7.749944
7.624981
8.578612
8.174171
8.013233
7.409289
7.79949
8.454966
7.66441
8.407901
8.028797
7.888982
7.999806
8.218226
8.367659
7.694615
8.287971
8.230059
7.985552
1107.3533
I-Sheng Yang
Ali Masoumi and I-Sheng Yang
Strongly Warped BPS Domain Walls
16 pages, 4 figures, v2, citations added and minor corrections
null
10.1103/PhysRevD.84.125004
null
hep-th gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present analytical solutions of BPS domain walls in the Einstein-Maxwell flux landscape. We also remove the smeared-branes approximation and write down solutions with localized branes. In these solutions the domain walls induce strong (if not infinite) warping.
[ { "created": "Mon, 18 Jul 2011 19:30:11 GMT", "version": "v1" }, { "created": "Tue, 26 Jul 2011 01:56:54 GMT", "version": "v2" } ]
2013-05-29
[ [ "Masoumi", "Ali", "" ], [ "Yang", "I-Sheng", "" ] ]
We present analytical solutions of BPS domain walls in the Einstein-Maxwell flux landscape. We also remove the smeared-branes approximation and write down solutions with localized branes. In these solutions the domain walls induce strong (if not infinite) warping.
27.024378
22.24292
27.789019
21.214548
26.384296
26.259586
21.880793
21.715288
21.974457
23.713421
22.465321
22.306086
25.893028
23.299608
22.183527
21.805975
21.445826
22.612495
23.326488
26.825487
22.996305
1804.05059
Kuo-Wei Huang
Kuo-Wei Huang, Radu Roiban, and Arkady A. Tseytlin
Self-dual 6d 2-form fields coupled to non-abelian gauge field: quantum corrections
25 pages; v2: minor corrections, references added; v3: typos fixed, published version
JHEP 06 (2018) 134
10.1007/JHEP06(2018)134
YITP-SB-18-08, Imperial-TP-AT-2018-02
hep-th math-ph math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a 6d model of a set of self-dual 2-form $B$-fields interacting with a non-abelian vector $A$-field which is restricted to a 5d subspace. One motivation is that if the gauge vector could be expressed in terms of the $B$-field or integrated out, this model could lead to an interacting theory of $B$-fields only. Treating the 5d gauge vector as a background field, we compute the divergent part of the corresponding one-loop effective action which has the $(DF)^2+F^3$ structure and compare it with similar contributions from other 6d fields. We also discuss a 4d analog of the non-abelian self-dual model, which turns out to be UV finite.
[ { "created": "Fri, 13 Apr 2018 17:58:27 GMT", "version": "v1" }, { "created": "Mon, 4 Jun 2018 20:11:23 GMT", "version": "v2" }, { "created": "Wed, 4 Jul 2018 17:43:45 GMT", "version": "v3" } ]
2018-07-05
[ [ "Huang", "Kuo-Wei", "" ], [ "Roiban", "Radu", "" ], [ "Tseytlin", "Arkady A.", "" ] ]
We study a 6d model of a set of self-dual 2-form $B$-fields interacting with a non-abelian vector $A$-field which is restricted to a 5d subspace. One motivation is that if the gauge vector could be expressed in terms of the $B$-field or integrated out, this model could lead to an interacting theory of $B$-fields only. Treating the 5d gauge vector as a background field, we compute the divergent part of the corresponding one-loop effective action which has the $(DF)^2+F^3$ structure and compare it with similar contributions from other 6d fields. We also discuss a 4d analog of the non-abelian self-dual model, which turns out to be UV finite.
8.138489
7.095225
8.110515
7.060846
7.349283
6.921747
6.820448
6.927014
7.006843
8.242628
6.884767
7.024969
7.680196
7.164035
7.386067
7.067282
7.31013
7.154717
7.30255
7.827804
7.254231
hep-th/0605170
Leopoldo A. Pando Zayas
Leopoldo A. Pando Zayas and Cesar A. Terrero-Escalante
Black Holes with Varying Flux: A Numerical Approach
40 pages, 15 figures
JHEP0609:051,2006
10.1088/1126-6708/2006/09/051
MCTP-06-08
hep-th
null
We present a numerical study of type IIB supergravity solutions with varying Ramond-Ramond flux. We construct solutions that have a regular horizon and contain nontrivial five- and three-form fluxes. These solutions are holographically dual to the deconfined phase of confining field theories at finite temperature. As a calibration of the numerical method we first numerically reproduce various analytically known solutions including singular and regular nonextremal D3 branes, the Klebanov-Tseytlin solution and its singular nonextremal generalization. The horizon of the solutions we construct is of the precise form of nonextremal D3 branes. In the asymptotic region far away from the horizon we observe a logarithmic behavior similar to that of the Klebanov-Tseytlin solution.
[ { "created": "Wed, 17 May 2006 17:34:50 GMT", "version": "v1" } ]
2009-11-11
[ [ "Zayas", "Leopoldo A. Pando", "" ], [ "Terrero-Escalante", "Cesar A.", "" ] ]
We present a numerical study of type IIB supergravity solutions with varying Ramond-Ramond flux. We construct solutions that have a regular horizon and contain nontrivial five- and three-form fluxes. These solutions are holographically dual to the deconfined phase of confining field theories at finite temperature. As a calibration of the numerical method we first numerically reproduce various analytically known solutions including singular and regular nonextremal D3 branes, the Klebanov-Tseytlin solution and its singular nonextremal generalization. The horizon of the solutions we construct is of the precise form of nonextremal D3 branes. In the asymptotic region far away from the horizon we observe a logarithmic behavior similar to that of the Klebanov-Tseytlin solution.
5.75571
5.345268
6.1267
5.271651
5.389603
5.416464
5.709088
5.556727
5.550287
6.910111
5.625668
5.712304
6.264959
5.681373
5.632462
5.591426
5.630235
5.568677
5.644874
5.993133
5.588189
hep-th/0109141
Anton Kapustin
Sergey A. Cherkis, Anton Kapustin
Hyperkahler Metrics from Periodic Monopoles
23 pages, latex. v2: an erroneous formula is corrected, and its derivation is given. v3 (published version): references added
Phys.Rev. D65 (2002) 084015
10.1103/PhysRevD.65.084015
CALT-68-2347, UCLA/01/TEP/20, CITUSC/01-031
hep-th math.DG
null
Relative moduli spaces of periodic monopoles provide novel examples of Asymptotically Locally Flat hyperkahler manifolds. By considering the interactions between well-separated periodic monopoles, we infer the asymptotic behavior of their metrics. When the monopole moduli space is four-dimensional, this construction yields interesting examples of metrics with self-dual curvature (gravitational instantons). We discuss their topology and complex geometry. An alternative construction of these gravitational instantons using moduli spaces of Hitchin equations is also described.
[ { "created": "Wed, 19 Sep 2001 04:41:47 GMT", "version": "v1" }, { "created": "Tue, 13 Nov 2001 17:33:52 GMT", "version": "v2" }, { "created": "Fri, 18 Jan 2002 17:29:19 GMT", "version": "v3" } ]
2009-11-07
[ [ "Cherkis", "Sergey A.", "" ], [ "Kapustin", "Anton", "" ] ]
Relative moduli spaces of periodic monopoles provide novel examples of Asymptotically Locally Flat hyperkahler manifolds. By considering the interactions between well-separated periodic monopoles, we infer the asymptotic behavior of their metrics. When the monopole moduli space is four-dimensional, this construction yields interesting examples of metrics with self-dual curvature (gravitational instantons). We discuss their topology and complex geometry. An alternative construction of these gravitational instantons using moduli spaces of Hitchin equations is also described.
10.627566
8.552201
10.297048
9.188021
9.636408
9.652152
9.160873
9.22571
8.654083
11.261557
8.921751
8.918965
9.528186
8.952016
9.016463
8.893879
8.877683
9.184937
9.043159
9.263164
9.02507
2307.02587
Jiaxin Qiao
Sridip Pal, Jiaxin Qiao
Lightcone Modular Bootstrap and Tauberian Theory: A Cardy-like Formula for Near-extremal Black Holes
v1: 54+30 pages, 4 figures v2: minor edits, more refereces added
null
null
null
hep-th math-ph math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that for a unitary modular invariant 2D CFT with central charge $c>1$ and having a nonzero twist gap in the spectrum of Virasoro primaries, for sufficiently large spin $J$, there always exist spin-$J$ operators with twist falling in the interval $(\frac{c-1}{12}-\varepsilon,\frac{c-1}{12}+\varepsilon)$ with $\varepsilon=O(J^{-1/2}\log J)$. We establish that the number of Virasoro primary operators in such a window has a Cardy-like i.e. $\exp\left(2\pi\sqrt{\frac{(c-1)J}{6}}\right)$ growth. We make further conjectures on potential generalization to CFTs with conserved currents. A similar result is proven for a family of holographic CFTs with the twist gap growing linearly in $c$ and a uniform boundedness condition, in the regime $J\gg c^3\gg1$. From the perspective of near-extremal rotating BTZ black holes (without electric charge), our result is valid when the Hawking temperature is much lower than the "gap temperature".
[ { "created": "Wed, 5 Jul 2023 18:33:55 GMT", "version": "v1" }, { "created": "Mon, 31 Jul 2023 07:46:20 GMT", "version": "v2" } ]
2023-08-01
[ [ "Pal", "Sridip", "" ], [ "Qiao", "Jiaxin", "" ] ]
We show that for a unitary modular invariant 2D CFT with central charge $c>1$ and having a nonzero twist gap in the spectrum of Virasoro primaries, for sufficiently large spin $J$, there always exist spin-$J$ operators with twist falling in the interval $(\frac{c-1}{12}-\varepsilon,\frac{c-1}{12}+\varepsilon)$ with $\varepsilon=O(J^{-1/2}\log J)$. We establish that the number of Virasoro primary operators in such a window has a Cardy-like i.e. $\exp\left(2\pi\sqrt{\frac{(c-1)J}{6}}\right)$ growth. We make further conjectures on potential generalization to CFTs with conserved currents. A similar result is proven for a family of holographic CFTs with the twist gap growing linearly in $c$ and a uniform boundedness condition, in the regime $J\gg c^3\gg1$. From the perspective of near-extremal rotating BTZ black holes (without electric charge), our result is valid when the Hawking temperature is much lower than the "gap temperature".
6.802933
6.560478
7.120053
6.554894
6.802546
6.772798
7.081003
6.828305
6.718199
7.99376
6.629926
6.649398
6.744542
6.585179
6.818318
6.688381
6.661264
6.728039
6.668806
6.787658
6.629635
hep-th/9611120
Ohta Yuji
Y\H{u}ji Ohta (Hiroshima Univ., Dept. of Math.)
Topological Field Theories associated with Three Dimensional Seiberg-Witten monopoles
new revised version, off-shell action is modified
Int.J.Theor.Phys. 37 (1998) 925-956
null
null
hep-th
null
Three dimensional topological field theories associated with the three dimensional version of Abelian and non-Abelian Seiberg-Witten monopoles are presented. These three dimensional monopole equations are obtained by a dimensional reduction of the four dimensional ones. The starting actions to be considered are Gaussian types with random auxiliary fields. As the local gauge symmetries with topological shifts are found to be first stage reducible, Batalin-Vilkovisky algorithm is suitable for quantization. Then BRST transformation rules are automatically obtained. Non-trivial observables associated with Chern classes are obtained from geometric sector and are found to correspond to those of the topological field theory of Bogomol'nyi monopoles.
[ { "created": "Sat, 16 Nov 1996 08:07:01 GMT", "version": "v1" }, { "created": "Thu, 21 Nov 1996 09:28:15 GMT", "version": "v2" }, { "created": "Tue, 7 Jan 1997 07:01:24 GMT", "version": "v3" } ]
2008-02-03
[ [ "Ohta", "Yűji", "", "Hiroshima Univ., Dept. of Math." ] ]
Three dimensional topological field theories associated with the three dimensional version of Abelian and non-Abelian Seiberg-Witten monopoles are presented. These three dimensional monopole equations are obtained by a dimensional reduction of the four dimensional ones. The starting actions to be considered are Gaussian types with random auxiliary fields. As the local gauge symmetries with topological shifts are found to be first stage reducible, Batalin-Vilkovisky algorithm is suitable for quantization. Then BRST transformation rules are automatically obtained. Non-trivial observables associated with Chern classes are obtained from geometric sector and are found to correspond to those of the topological field theory of Bogomol'nyi monopoles.
12.426638
12.357137
13.956138
12.590986
13.666127
13.518817
13.450194
13.174505
12.708959
15.623649
11.949256
12.194735
12.511295
12.011913
12.103302
11.689498
11.756226
11.879955
12.110357
12.39874
11.912655
2012.15352
Yegor Zenkevich
Mohamed Ghoneim, Can Koz\c{c}az, Kerem Kur\c{s}un, Yegor Zenkevich
4d higgsed network calculus and elliptic DIM algebra
23 pages, 1 figure
null
null
ITEP/TH-34/20; MIPT/TH-19/20
hep-th math-ph math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Supersymmetric gauge theories of certain class possess a large hidden nonperturbative symmetry described by the Ding-Iohara-Miki (DIM) algebra which can be used to compute their partition functions and correlators very efficiently. We lift the DIM-algebraic approach developed to study holomorphic blocks of 3d linear quiver gauge theories one dimension higher. We employ an algebraic construction in which the underlying trigonometric DIM algebra is elliptically deformed, and an alternative geometric approach motivated by topological string theory. We demonstrate the equivalence of these two methods, and motivated by this, prove that elliptic DIM algebra is isomorphic to the direct sum of a trigonometric DIM algebra and an additional Heisenberg algebra.
[ { "created": "Wed, 30 Dec 2020 22:47:48 GMT", "version": "v1" } ]
2021-01-01
[ [ "Ghoneim", "Mohamed", "" ], [ "Kozçaz", "Can", "" ], [ "Kurşun", "Kerem", "" ], [ "Zenkevich", "Yegor", "" ] ]
Supersymmetric gauge theories of certain class possess a large hidden nonperturbative symmetry described by the Ding-Iohara-Miki (DIM) algebra which can be used to compute their partition functions and correlators very efficiently. We lift the DIM-algebraic approach developed to study holomorphic blocks of 3d linear quiver gauge theories one dimension higher. We employ an algebraic construction in which the underlying trigonometric DIM algebra is elliptically deformed, and an alternative geometric approach motivated by topological string theory. We demonstrate the equivalence of these two methods, and motivated by this, prove that elliptic DIM algebra is isomorphic to the direct sum of a trigonometric DIM algebra and an additional Heisenberg algebra.
9.585395
9.50348
11.410385
8.840843
9.37699
9.658089
9.310287
9.155046
9.005728
14.995624
8.787987
8.889442
10.831295
8.913873
9.144071
8.854466
8.644673
8.787156
9.346926
9.890958
9.286202
1708.09848
Andrzej Borowiec
A. Borowiec, J. Lukierski and V.N. Tolstoy
Basic quantizations of $D=4$ Euclidean, Lorentz, Kleinian and quaternionic $\mathfrak{o}^{\star}(4)$ symmetries
32 pages, v2 minor improvements, added references, new formulas on p.23
JHEP 1711 (2017) 187
10.1007/JHEP11(2017)187
null
hep-th math-ph math.MP math.QA
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct firstly the complete list of five quantum deformations of $D=4$ complex homogeneous orthogonal Lie algebra $\mathfrak{o}(4;\mathbb{C})\cong \mathfrak{o}(3;\mathbb{C})\oplus \mathfrak{o}(3;\mathbb{C})$, describing quantum rotational symmetry of four-dimensional complex space-time, in particular we provide the corresponding universal quantum $R$-matrices. Further applying four possible reality conditions we obtain all sixteen Hopf-algebraic quantum deformations for the real forms of $\mathfrak{o}(4;\mathbb{C})$: Euclidean $\mathfrak{o}(4)$, Lorentz $\mathfrak{o}(3,1)$, Kleinian $\mathfrak{o}(2,2)$ and quaternionic $\mathfrak{o}^{\star}(4)$. For $\mathfrak{o}(3,1)$ we only recall well-known results obtained previously by the authors, but for other real Lie algebras (Euclidean, Kleinian, quaternionic) as well as for the complex Lie algebra $\mathfrak{o}(4;\mathbb{C})$ we present new results.
[ { "created": "Thu, 31 Aug 2017 17:55:01 GMT", "version": "v1" }, { "created": "Mon, 11 Sep 2017 17:34:31 GMT", "version": "v2" } ]
2017-12-12
[ [ "Borowiec", "A.", "" ], [ "Lukierski", "J.", "" ], [ "Tolstoy", "V. N.", "" ] ]
We construct firstly the complete list of five quantum deformations of $D=4$ complex homogeneous orthogonal Lie algebra $\mathfrak{o}(4;\mathbb{C})\cong \mathfrak{o}(3;\mathbb{C})\oplus \mathfrak{o}(3;\mathbb{C})$, describing quantum rotational symmetry of four-dimensional complex space-time, in particular we provide the corresponding universal quantum $R$-matrices. Further applying four possible reality conditions we obtain all sixteen Hopf-algebraic quantum deformations for the real forms of $\mathfrak{o}(4;\mathbb{C})$: Euclidean $\mathfrak{o}(4)$, Lorentz $\mathfrak{o}(3,1)$, Kleinian $\mathfrak{o}(2,2)$ and quaternionic $\mathfrak{o}^{\star}(4)$. For $\mathfrak{o}(3,1)$ we only recall well-known results obtained previously by the authors, but for other real Lie algebras (Euclidean, Kleinian, quaternionic) as well as for the complex Lie algebra $\mathfrak{o}(4;\mathbb{C})$ we present new results.
4.258093
4.054594
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4.178867
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4.273765
4.291641
4.447841
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4.127877
4.330449
4.135043
4.202569
1202.0006
Alberto Salvio
Marc Montull, Oriol Pujol\`as, Alberto Salvio and Pedro J. Silva
Magnetic Response in the Holographic Insulator/Superconductor Transition
31 pages, 24 figures; discussion on vortex lattice, few comments and references added; article published in JHEP
null
10.1007/JHEP04(2012)135
null
hep-th cond-mat.mes-hall cond-mat.quant-gas cond-mat.supr-con gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the magnetic response of holographic superconductors exhibiting an insulating "normal" phase. These materials can be realized as a CFT compactified on a circle, which is dual to the AdS Soliton geometry. We study the response under i) magnetic fields and ii) a Wilson line on the circle. Magnetic fields lead to formation of vortices and allows one to infer that the superconductor is of type II. The response to a Wilson line is in the form of Aharonov-Bohm-like effects. These are suppressed in the holographic conductor/superconductor transition but, instead, they are unsuppressed for the insulator case. Holography, thus, predicts that generically insulators display stronger Aharonov-Bohm effects than conductors. In the fluid-mechanical limit the AdS Soliton is interpreted as a supersolid. Our results imply that supersolids display unsuppressed Aharonov-Bohm (or "Sagnac") effects - stronger than in superfluids.
[ { "created": "Tue, 31 Jan 2012 21:00:02 GMT", "version": "v1" }, { "created": "Thu, 3 May 2012 13:56:16 GMT", "version": "v2" } ]
2015-06-04
[ [ "Montull", "Marc", "" ], [ "Pujolàs", "Oriol", "" ], [ "Salvio", "Alberto", "" ], [ "Silva", "Pedro J.", "" ] ]
We study the magnetic response of holographic superconductors exhibiting an insulating "normal" phase. These materials can be realized as a CFT compactified on a circle, which is dual to the AdS Soliton geometry. We study the response under i) magnetic fields and ii) a Wilson line on the circle. Magnetic fields lead to formation of vortices and allows one to infer that the superconductor is of type II. The response to a Wilson line is in the form of Aharonov-Bohm-like effects. These are suppressed in the holographic conductor/superconductor transition but, instead, they are unsuppressed for the insulator case. Holography, thus, predicts that generically insulators display stronger Aharonov-Bohm effects than conductors. In the fluid-mechanical limit the AdS Soliton is interpreted as a supersolid. Our results imply that supersolids display unsuppressed Aharonov-Bohm (or "Sagnac") effects - stronger than in superfluids.
8.233563
8.273132
8.501293
8.129283
8.402132
8.431661
8.279194
7.735527
8.212623
9.080685
7.983075
7.898349
8.591299
7.849465
7.930344
7.819351
7.745241
8.06486
7.724088
8.427266
7.778605
hep-th/9911098
Iouri Chepelev
Iouri Chepelev and Radu Roiban
Renormalization of Quantum Field Theories on Noncommutative R^d, I. Scalars
Latex, 31 pages, many postscript figures; v2: A false statement in section 4.2 fixed and 3 figures added. The concluding section modified: scalar NQFT is not renormalizable. An argument about renormalizability of Wess-Zumino model added in the concluding section. References added; v3: Title of figure 15 changed. Typos corrected. A reference added; v4: Improved definition of index j and some clarifying comments. Added references. Statements on non-renormalizability softened at the referee's request
JHEP 0005 (2000) 037
10.1088/1126-6708/2000/05/037
null
hep-th
null
A noncommutative Feynman graph is a ribbon graph and can be drawn on a genus $g$ 2-surface with a boundary. We formulate a general convergence theorem for the noncommutative Feynman graphs in topological terms and prove it for some classes of diagrams in the scalar field theories. We propose a noncommutative analog of Bogoliubov-Parasiuk's recursive subtraction formula and show that the subtracted graphs from a class $\Omega_d$ satisfy the conditions of the convergence theorem. For a generic scalar noncommutative quantum field theory on $\re^d$, the class $\Omega_d$ is smaller than the class of all diagrams in the theory. This leaves open the question of perturbative renormalizability of noncommutative field theories. We comment on how the supersymmetry can improve the situation and suggest that a noncommutative analog of Wess-Zumino model is renormalizable.
[ { "created": "Mon, 15 Nov 1999 02:47:08 GMT", "version": "v1" }, { "created": "Wed, 17 Nov 1999 23:50:35 GMT", "version": "v2" }, { "created": "Fri, 10 Dec 1999 21:34:37 GMT", "version": "v3" }, { "created": "Wed, 24 May 2000 20:06:08 GMT", "version": "v4" } ]
2009-10-31
[ [ "Chepelev", "Iouri", "" ], [ "Roiban", "Radu", "" ] ]
A noncommutative Feynman graph is a ribbon graph and can be drawn on a genus $g$ 2-surface with a boundary. We formulate a general convergence theorem for the noncommutative Feynman graphs in topological terms and prove it for some classes of diagrams in the scalar field theories. We propose a noncommutative analog of Bogoliubov-Parasiuk's recursive subtraction formula and show that the subtracted graphs from a class $\Omega_d$ satisfy the conditions of the convergence theorem. For a generic scalar noncommutative quantum field theory on $\re^d$, the class $\Omega_d$ is smaller than the class of all diagrams in the theory. This leaves open the question of perturbative renormalizability of noncommutative field theories. We comment on how the supersymmetry can improve the situation and suggest that a noncommutative analog of Wess-Zumino model is renormalizable.
6.781063
6.901478
6.924254
6.659894
6.639504
7.026676
6.696184
6.593664
6.984838
7.308725
6.495405
6.681617
6.888606
6.716374
6.91452
6.763123
6.742773
6.612221
6.825196
6.960228
6.518261
1512.06661
Muhammad Raza
N.S. Mazhari, D. Momeni, R. Myrzakulov, H. Gholizade, M. Raza
Non-equilibrium phase and entanglement entropy in 2D holographic superconductors via Gauge-String duality
null
Canadian Journal of Physics, 2016, 94(10)
10.1139/cjp-2016-0338
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An alternative method of developing the theory of non-equilibrium two dimensional holographic superconductor is to start from the definition of a time dependent $AdS_3$ background. As originally proposed, many of these formulae were cast in exponential form, but the adoption of the numeric method of expression throughout the bulk serves to show more clearly the relationship between the various parameters. The time dependence behaviour of the scalar condensation and Maxwell fields are fitted numerically. A usual value for Maxwell field on AdS horizon is $\exp(-bt)$, and the exponential $\log$ ratio is therefore $10^{-8} s^{-1}$. The coefficient $b$ of the time in the exponential term $\exp(-bt)$ can be interpreted as a tool to measure the degree of dynamical instability, its reciprocal $\frac{1}{b}$ is the time in which the disturbance is multiplied in the ratio. A discussion of some of the exponential formulae is given by the scalar field $\psi(z,t)$ near the AdS boundary. It might be possible that a long interval would elapse the system which tends to the equilibrium state when the normal mass and conformal dimensions emerged. A somewhat curious calculation has been made, to illustrate the holographic entanglement entropy for this system. The foundation of all this calculation is, of course, a knowledge of multiple (connected and disconnected) extremal surfaces. There are several cases in which exact and approximate solutions are jointly used, a variable numerical quantity is represented by a graph, and the principles of approximation are then applied to determine related numerical quantities. In the case of the disconnected phase with a finite extremal are, we find a discontinuity in the first derivative of the entanglement entropy as the conserved charge $J$ is increased.
[ { "created": "Fri, 30 Oct 2015 17:29:03 GMT", "version": "v1" } ]
2016-10-19
[ [ "Mazhari", "N. S.", "" ], [ "Momeni", "D.", "" ], [ "Myrzakulov", "R.", "" ], [ "Gholizade", "H.", "" ], [ "Raza", "M.", "" ] ]
An alternative method of developing the theory of non-equilibrium two dimensional holographic superconductor is to start from the definition of a time dependent $AdS_3$ background. As originally proposed, many of these formulae were cast in exponential form, but the adoption of the numeric method of expression throughout the bulk serves to show more clearly the relationship between the various parameters. The time dependence behaviour of the scalar condensation and Maxwell fields are fitted numerically. A usual value for Maxwell field on AdS horizon is $\exp(-bt)$, and the exponential $\log$ ratio is therefore $10^{-8} s^{-1}$. The coefficient $b$ of the time in the exponential term $\exp(-bt)$ can be interpreted as a tool to measure the degree of dynamical instability, its reciprocal $\frac{1}{b}$ is the time in which the disturbance is multiplied in the ratio. A discussion of some of the exponential formulae is given by the scalar field $\psi(z,t)$ near the AdS boundary. It might be possible that a long interval would elapse the system which tends to the equilibrium state when the normal mass and conformal dimensions emerged. A somewhat curious calculation has been made, to illustrate the holographic entanglement entropy for this system. The foundation of all this calculation is, of course, a knowledge of multiple (connected and disconnected) extremal surfaces. There are several cases in which exact and approximate solutions are jointly used, a variable numerical quantity is represented by a graph, and the principles of approximation are then applied to determine related numerical quantities. In the case of the disconnected phase with a finite extremal are, we find a discontinuity in the first derivative of the entanglement entropy as the conserved charge $J$ is increased.
21.395908
24.367189
22.839146
22.223377
23.205669
22.54966
23.689781
23.419031
22.195753
24.214228
22.148403
21.939367
21.523994
20.833498
21.490982
21.560337
21.739532
21.271847
21.096102
21.223894
21.559942
1608.00226
Hai Siong Tan
H. S. Tan
On scalar propagators of three-dimensional higher-spin black holes
27 pages. v3: references added
JHEP 1609:137,2016
10.1007/JHEP09(2016)137
null
hep-th gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore some aspects of three-dimensional higher-spin holography by studying scalar fluctuations in the background of higher-spin black holes. We furnish an independent derivation of the bulk-boundary propagator by purely invoking a well-known infinite dimensional matrix representation of $hs[\lambda]$ algebra related to its construction as a quotient of the universal enveloping algebra of $sl(2)$, thus evading the need in previous literature to perform an analytic continuation from some integer to $\lambda$. The propagator and the boundary two-point functions are derived for black hole solutions in $hs[\lambda]\times hs[\lambda]$ Chern-Simons theory with spin-3 and spin-4 charges up to second-order in the potentials. We match them with three- and four-point torus correlation functions of the putative dual conformal field theory which has $\mathcal{W}_\infty [\lambda]$ symmetry and is deformed by higher-spin currents.
[ { "created": "Sun, 31 Jul 2016 14:59:35 GMT", "version": "v1" }, { "created": "Sat, 6 Aug 2016 09:39:20 GMT", "version": "v2" }, { "created": "Sun, 20 Nov 2016 16:08:44 GMT", "version": "v3" } ]
2016-11-22
[ [ "Tan", "H. S.", "" ] ]
We explore some aspects of three-dimensional higher-spin holography by studying scalar fluctuations in the background of higher-spin black holes. We furnish an independent derivation of the bulk-boundary propagator by purely invoking a well-known infinite dimensional matrix representation of $hs[\lambda]$ algebra related to its construction as a quotient of the universal enveloping algebra of $sl(2)$, thus evading the need in previous literature to perform an analytic continuation from some integer to $\lambda$. The propagator and the boundary two-point functions are derived for black hole solutions in $hs[\lambda]\times hs[\lambda]$ Chern-Simons theory with spin-3 and spin-4 charges up to second-order in the potentials. We match them with three- and four-point torus correlation functions of the putative dual conformal field theory which has $\mathcal{W}_\infty [\lambda]$ symmetry and is deformed by higher-spin currents.
9.867785
8.341571
10.620725
8.626538
9.006683
8.660222
9.596085
8.368864
8.395676
11.618465
8.6159
8.81216
9.748828
9.143911
8.762648
8.553452
8.999496
8.503613
8.942348
9.755422
8.929632
2009.07940
Karol Kampf
Karol Kampf and Jiri Novotny
Scattering Amplitudes and Soft Theorems in Multi-Flavor Galileon Theories
42 pages, 2 figures
null
10.1007/JHEP12(2020)056
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we initiate the study of multi-flavor Galileon theories using the methods of scattering amplitudes. We explore this topic from different perspectives and extend the techniques employed so far mainly in the single-flavor case. This includes soft theorems, generalized soft theorems with non-trivial right-hand side, Galileon dualities, soft bootstrap and bonus relations. We demonstrate new properties on two examples, the multi-flavor U(N) Galileon and the three-flavor U(2)/U(1) Galileon.
[ { "created": "Wed, 16 Sep 2020 21:18:31 GMT", "version": "v1" } ]
2020-12-30
[ [ "Kampf", "Karol", "" ], [ "Novotny", "Jiri", "" ] ]
In this paper, we initiate the study of multi-flavor Galileon theories using the methods of scattering amplitudes. We explore this topic from different perspectives and extend the techniques employed so far mainly in the single-flavor case. This includes soft theorems, generalized soft theorems with non-trivial right-hand side, Galileon dualities, soft bootstrap and bonus relations. We demonstrate new properties on two examples, the multi-flavor U(N) Galileon and the three-flavor U(2)/U(1) Galileon.
12.44703
10.506211
11.410847
10.640672
10.700013
10.889998
10.719133
9.989051
9.613215
11.782192
10.508535
10.623599
10.825624
10.224911
10.58111
10.751623
10.473901
10.952785
10.269176
10.660626
11.163179
hep-th/0110190
null
Soumitra SenGupta and Aninda Sinha
Generation of Neutrino mass in a Kalb-Ramond Background in large extra dimensions
Latex, 9 Pages, No figures, Thoroughly revised
null
null
null
hep-th
null
In this paper we investigate whether spacetime torsion induced by a Kalb-Ramond field in a string inspired background can generate a mass for the left-handed neutrino. We consider an Einstein-Dirac-Kalb-Ramond lagrangian in higher dimensional spacetime with torsion generated by the Kalb-Ramond antisymmetric field in the presence of a bulk fermion. We show that such a coupling can generate a mass term for the four dimensional neutrino after a suitable large radius compactification of the extra dimensions.
[ { "created": "Sat, 20 Oct 2001 07:22:49 GMT", "version": "v1" }, { "created": "Thu, 5 Sep 2002 11:14:32 GMT", "version": "v2" } ]
2007-05-23
[ [ "SenGupta", "Soumitra", "" ], [ "Sinha", "Aninda", "" ] ]
In this paper we investigate whether spacetime torsion induced by a Kalb-Ramond field in a string inspired background can generate a mass for the left-handed neutrino. We consider an Einstein-Dirac-Kalb-Ramond lagrangian in higher dimensional spacetime with torsion generated by the Kalb-Ramond antisymmetric field in the presence of a bulk fermion. We show that such a coupling can generate a mass term for the four dimensional neutrino after a suitable large radius compactification of the extra dimensions.
6.697129
6.200028
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5.915195
6.185428
6.10616
6.098218
5.578602
5.951958
6.014766
6.213765
6.291545
6.141452
6.067734
5.979241
6.285135
6.127721
6.010689
6.063609
5.923911
6.22725
hep-th/9609099
Margaret Gabler
Frank Wilczek
Asymptotic Freedom
Phyzzx, 48 pages, 7 figures
null
null
IASSNS-HEP 96-92
hep-th hep-ph
null
I discuss how the basic phenomenon of asymptotic freedom in QCD can be understood in elementary physical terms. Similarly, I discuss how the long-predicted phenomenon of ``gluonization of the proton'' -- recently spectacularly confirmed at HERA -- is a rather direct manifestation of the physics of asymptotic freedom. I review the broader significance of asymptotic freedom in QCD in fundamental physics: how on the one hand it guides the interpretation and now even the design of experiments, and how on the other it makes possible a rational, quantitative theoretical approach to problems of unification and early universe cosmology.
[ { "created": "Wed, 11 Sep 1996 21:19:51 GMT", "version": "v1" } ]
2007-05-23
[ [ "Wilczek", "Frank", "" ] ]
I discuss how the basic phenomenon of asymptotic freedom in QCD can be understood in elementary physical terms. Similarly, I discuss how the long-predicted phenomenon of ``gluonization of the proton'' -- recently spectacularly confirmed at HERA -- is a rather direct manifestation of the physics of asymptotic freedom. I review the broader significance of asymptotic freedom in QCD in fundamental physics: how on the one hand it guides the interpretation and now even the design of experiments, and how on the other it makes possible a rational, quantitative theoretical approach to problems of unification and early universe cosmology.
11.78283
12.201031
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11.658751
12.359804
13.865019
13.096756
12.486763
11.549421
12.869088
12.321987
11.308208
10.488051
10.722883
11.204599
11.626305
11.040766
11.482051
11.039226
10.817569
11.437346
1310.6549
Hagop Sazdjian
H. Sazdjian
Two-point gauge invariant quark Green's functions with polygonal phase factor lines
6 pages, PDFLatex uses elsarticle class. Invited talk at the Conference Light Cone: Relativistic Hadronic and Particle Physics, 10-15 December 2012, Delhi, India
Nucl. Phys. B (Proc. Suppl.) 251-252 (2014) 81
10.1016/j.nuclphysbps.2014.04.014
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Polygonal lines are used for the paths of the gluon field phase factors entering in the definition of gauge invariant quark Green's functions. This allows classification of the Green's functions according to the number of segments the polygonal lines contain. Functional relations are established between Green's functions with polygonal lines with different numbers of segments. An integrodifferential equation is obtained for the quark two-point Green's function with a path along a single straight line segment where the kernels are represented by a series of Wilson loop averages along polygonal contours. The equation is exactly and analytically solved in the case of two-dimensional QCD in the large-$N_c$ limit. The solution displays generation of an infinite number of dynamical quark masses accompanied with branch point singularities that are stronger than simple poles. An approximation scheme, based on the counting of functional derivatives of Wilson loops, is proposed for the resolution of the equation in four dimensions.
[ { "created": "Thu, 24 Oct 2013 10:18:26 GMT", "version": "v1" } ]
2014-06-11
[ [ "Sazdjian", "H.", "" ] ]
Polygonal lines are used for the paths of the gluon field phase factors entering in the definition of gauge invariant quark Green's functions. This allows classification of the Green's functions according to the number of segments the polygonal lines contain. Functional relations are established between Green's functions with polygonal lines with different numbers of segments. An integrodifferential equation is obtained for the quark two-point Green's function with a path along a single straight line segment where the kernels are represented by a series of Wilson loop averages along polygonal contours. The equation is exactly and analytically solved in the case of two-dimensional QCD in the large-$N_c$ limit. The solution displays generation of an infinite number of dynamical quark masses accompanied with branch point singularities that are stronger than simple poles. An approximation scheme, based on the counting of functional derivatives of Wilson loops, is proposed for the resolution of the equation in four dimensions.
9.453408
9.710218
8.530465
8.512403
8.804896
9.098013
8.601296
9.064952
7.639647
8.782291
9.593783
8.776423
8.402969
8.259672
8.614394
8.585314
8.425373
8.80578
8.226319
8.631462
9.196206
1511.08242
Alexei Morozov
A. Morozov, An. Morozov and A. Popolitov
On ambiguity in knot polynomials for virtual knots
17 pages
Phys.Lett.B 757 (2016) 289-302
10.1016/j.physletb.2016.03.085
IITP/TH-18/15
hep-th math-ph math.GT math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We claim that HOMFLY polynomials for virtual knots, defined with the help of the matrix-model recursion relations, contain more parameters, than just the usual $q$ and $A = q^N$. These parameters preserve topological invariance and do not show up in the case of ordinary (non-virtual) knots and links. They are most conveniently observed in the hypercube formalism: then they substitute $q$-dimensions of certain fat graphs, which are not constrained by recursion and can be chosen arbitrarily. The number of these new topological invariants seems to grow fast with the number of non-virtual crossings: 0, 1, 1, 5, 15, 91, 784, 9160, ... This number can be decreased by imposing the factorization requirement for composites, in addition to topological invariance -- still freedom remains. None of these new parameters, however, appear in HOMFLY for Kishino unknot, which thus remains unseparated from the ordinary unknots even by this enriched set of knot invariants.
[ { "created": "Wed, 25 Nov 2015 22:09:16 GMT", "version": "v1" }, { "created": "Wed, 16 Nov 2016 13:29:00 GMT", "version": "v2" } ]
2016-11-17
[ [ "Morozov", "A.", "" ], [ "Morozov", "An.", "" ], [ "Popolitov", "A.", "" ] ]
We claim that HOMFLY polynomials for virtual knots, defined with the help of the matrix-model recursion relations, contain more parameters, than just the usual $q$ and $A = q^N$. These parameters preserve topological invariance and do not show up in the case of ordinary (non-virtual) knots and links. They are most conveniently observed in the hypercube formalism: then they substitute $q$-dimensions of certain fat graphs, which are not constrained by recursion and can be chosen arbitrarily. The number of these new topological invariants seems to grow fast with the number of non-virtual crossings: 0, 1, 1, 5, 15, 91, 784, 9160, ... This number can be decreased by imposing the factorization requirement for composites, in addition to topological invariance -- still freedom remains. None of these new parameters, however, appear in HOMFLY for Kishino unknot, which thus remains unseparated from the ordinary unknots even by this enriched set of knot invariants.
12.369241
11.938993
15.402874
12.459916
13.439635
13.639465
12.515286
12.20513
12.21046
14.265684
12.01363
11.516593
11.953162
11.954473
11.441045
12.006735
11.811105
11.656809
11.712444
12.398994
11.670509
2212.14605
Clay C\'ordova
Anuj Apte, Clay Cordova, Ho Tat Lam
Obstructions to Gapped Phases from Non-Invertible Symmetries
21 pages, 6 figures, 1 table
null
10.1103/PhysRevB.108.045134
null
hep-th cond-mat.str-el
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quantum systems in 3+1-dimensions that are invariant under gauging a one-form symmetry enjoy novel non-invertible duality symmetries encoded by topological defects. These symmetries are renormalization group invariants which constrain dynamics. We show that such non-invertible symmetries often forbid a symmetry-preserving vacuum state with a gapped spectrum. In particular, we prove that a self-dual theory with $\mathbb{Z}_{N}^{(1)}$ one-form symmetry is gapless or spontaneously breaks the self-duality symmetry unless $N=k^{2}\ell$ where $-1$ is a quadratic residue modulo $\ell$. We also extend these results to non-invertible symmetries arising from invariance under more general gauging operations including e.g. triality symmetries. Along the way, we discover how duality defects in symmetry protected topological phases have a hidden time-reversal symmetry that organizes their basic properties. These non-invertible symmetries are realized in lattice gauge theories, which serve to illustrate our results.
[ { "created": "Fri, 30 Dec 2022 09:13:28 GMT", "version": "v1" } ]
2023-08-02
[ [ "Apte", "Anuj", "" ], [ "Cordova", "Clay", "" ], [ "Lam", "Ho Tat", "" ] ]
Quantum systems in 3+1-dimensions that are invariant under gauging a one-form symmetry enjoy novel non-invertible duality symmetries encoded by topological defects. These symmetries are renormalization group invariants which constrain dynamics. We show that such non-invertible symmetries often forbid a symmetry-preserving vacuum state with a gapped spectrum. In particular, we prove that a self-dual theory with $\mathbb{Z}_{N}^{(1)}$ one-form symmetry is gapless or spontaneously breaks the self-duality symmetry unless $N=k^{2}\ell$ where $-1$ is a quadratic residue modulo $\ell$. We also extend these results to non-invertible symmetries arising from invariance under more general gauging operations including e.g. triality symmetries. Along the way, we discover how duality defects in symmetry protected topological phases have a hidden time-reversal symmetry that organizes their basic properties. These non-invertible symmetries are realized in lattice gauge theories, which serve to illustrate our results.
7.898767
7.506077
8.718761
7.262123
7.17741
7.536003
7.314448
7.081791
7.140028
9.714276
6.789605
7.313692
8.010234
7.354806
7.481031
7.384338
7.286556
7.295154
7.321737
8.291343
7.409108
hep-th/9904003
Sebastian Silva
M. Henneaux, B. Julia and S. Silva
Noether superpotentials in supergravities
18 Pages, LaTex, minor changes, to be published in NPB
Nucl.Phys. B563 (1999) 448-460
10.1016/S0550-3213(99)00536-2
LPTENS 99/09; ULB-TH/99-07
hep-th
null
Straightforward application of the standard Noether method in supergravity theories yields an incorrect superpotential for local supersymmetry transformations, which gives only half of the correct supercharge. We show how to derive the correct superpotential through Lagrangian methods, by applying a criterion proposed recently by one of us. We verify the equivalence with the Hamiltonian formalism. It is also indicated why the first-order and second-order formalisms lead to the same superpotential. We rederive in particular the central extension by the magnetic charge of the ${\cal N}_4 =2$ algebra of SUGRA asymptotic charges.
[ { "created": "Thu, 1 Apr 1999 10:11:27 GMT", "version": "v1" }, { "created": "Thu, 28 Oct 1999 13:29:12 GMT", "version": "v2" } ]
2009-10-31
[ [ "Henneaux", "M.", "" ], [ "Julia", "B.", "" ], [ "Silva", "S.", "" ] ]
Straightforward application of the standard Noether method in supergravity theories yields an incorrect superpotential for local supersymmetry transformations, which gives only half of the correct supercharge. We show how to derive the correct superpotential through Lagrangian methods, by applying a criterion proposed recently by one of us. We verify the equivalence with the Hamiltonian formalism. It is also indicated why the first-order and second-order formalisms lead to the same superpotential. We rederive in particular the central extension by the magnetic charge of the ${\cal N}_4 =2$ algebra of SUGRA asymptotic charges.
15.354445
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12.184095
12.435883
12.604986
13.01089
2002.06108
Bruno Carneiro da Cunha
Juli\'an Barrag\'an-Amado, Bruno Carneiro da Cunha, and Elisabetta Pallante
Vector perturbations of Kerr-AdS$_5$ and the Painlev\'e VI transcendent
Minor comments on fixing of parameters and polarizations, 31 pages, 2 figures, JHEP style
null
null
null
hep-th gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the Ansatz of separability for Maxwell equations in generically spinning, five-dimensional Kerr-AdS black holes. We find that the parameter \mu introduced in a previous work by O. Lunin can be interpreted as apparent singularities of the resulting radial and angular equations. Using isomonodromy deformations, we describe a non-linear symmetry of the system, under which \mu is tied to the Painlev\'e VI transcendent. By translating the boundary conditions imposed on the solutions of the equations for quasinormal modes in terms of monodromy data, we find a procedure to fix \mu and study the behavior of the quasinormal modes in the limit of fast spinning small black holes.
[ { "created": "Fri, 14 Feb 2020 16:23:58 GMT", "version": "v1" }, { "created": "Wed, 1 Apr 2020 19:53:54 GMT", "version": "v2" } ]
2020-04-03
[ [ "Barragán-Amado", "Julián", "" ], [ "da Cunha", "Bruno Carneiro", "" ], [ "Pallante", "Elisabetta", "" ] ]
We analyze the Ansatz of separability for Maxwell equations in generically spinning, five-dimensional Kerr-AdS black holes. We find that the parameter \mu introduced in a previous work by O. Lunin can be interpreted as apparent singularities of the resulting radial and angular equations. Using isomonodromy deformations, we describe a non-linear symmetry of the system, under which \mu is tied to the Painlev\'e VI transcendent. By translating the boundary conditions imposed on the solutions of the equations for quasinormal modes in terms of monodromy data, we find a procedure to fix \mu and study the behavior of the quasinormal modes in the limit of fast spinning small black holes.
12.751116
11.336587
12.969505
10.628385
10.883834
9.872976
9.940153
9.322834
10.863773
12.337363
10.87864
11.159706
11.384319
10.803642
10.540024
10.597895
11.03771
10.461377
11.151721
11.311101
10.926807
hep-th/0303227
Radoslaw Matyszkiewicz
Zygmunt Lalak and Radoslaw Matyszkiewicz
Twisted supergravity and untwisted super-bigravity
13 pages, Latex, derivation of consistency conditions simplified
Phys.Lett. B562 (2003) 347-357
10.1016/S0370-2693(03)00598-7
IFT-2003-07
hep-th
null
We have extended previous analysis of the bulk/brane supersymmetrizations involving non-zero brane mass terms of bulk fermions (gravitini) and twisting of boundary conditions. We have constructed new brane/bulk models that may be relevant for realistic model building. In particular, we have built a model with the Randall-Sundrum bosonic sector, orthogonal projection operators on the branes in the fermionic sector, and an unbroken N=1 supersymmetry. We have also constructed 5d super-bigravity with static vacuum and unbroken N=1 supersymmetry, which may be viewed as a deconstruction of 5d supergravity.
[ { "created": "Wed, 26 Mar 2003 16:46:22 GMT", "version": "v1" }, { "created": "Tue, 5 Aug 2003 18:14:57 GMT", "version": "v2" }, { "created": "Mon, 20 Oct 2003 16:24:34 GMT", "version": "v3" } ]
2009-11-10
[ [ "Lalak", "Zygmunt", "" ], [ "Matyszkiewicz", "Radoslaw", "" ] ]
We have extended previous analysis of the bulk/brane supersymmetrizations involving non-zero brane mass terms of bulk fermions (gravitini) and twisting of boundary conditions. We have constructed new brane/bulk models that may be relevant for realistic model building. In particular, we have built a model with the Randall-Sundrum bosonic sector, orthogonal projection operators on the branes in the fermionic sector, and an unbroken N=1 supersymmetry. We have also constructed 5d super-bigravity with static vacuum and unbroken N=1 supersymmetry, which may be viewed as a deconstruction of 5d supergravity.
12.028327
10.509636
11.450107
9.627597
10.8156
10.697268
11.78015
11.043653
10.536627
11.525688
10.847322
10.711699
10.753446
10.726366
11.084374
11.306951
11.151706
10.841934
10.689862
11.03309
10.667572
0801.4813
David Broadhurst
David Broadhurst
Elliptic integral evaluation of a Bessel moment by contour integration of a lattice Green function
13 pages, now includes staircase polygons and complex separatrices
null
null
null
hep-th
null
A proof is found for the elliptic integral evaluation of the Bessel moment $$M:=\int_0^\infty t I_0^2(t)K_0^2(t)K_0(2t) {\rm d}t ={1/12} {\bf K}(\sin(\pi/12)){\bf K}(\cos(\pi/12)) =\frac{\Gamma^6(\frac13)}{64\pi^22^{2/3}}$$ resulting from an angular average of a 2-loop 4-point massive Feynman diagram, with one internal mass doubled. This evaluation follows from contour integration of the Green function for a hexagonal lattice, thereby relating $M$ to a linear combination of two more tractable moments, one given by the Green function for a diamond lattice and both evaluated by using W.N. Bailey's reduction of an Appell double series to a product of elliptic integrals. Cubic and sesquiplicate modular transformations of an elliptic integral from the equal-mass Dalitz plot are proven and used extensively. Derivations are given of the sum rules $$\int_0^\infty(I_0(a t)K_0(a t)-\frac{2}{\pi} K_0(4a t) K_0(t))K_0(t) {\rm d}t=0$$ with $a>0$, proven by analytic continuation of an identity from Bailey's work, and $$\int_0^\infty t I_0(a t)(I_0^3(a t)K_0(8t)- \frac{1}{4\pi^2} I_0(t)K_0^3(t)) {\rm d}t=0$$ with $2\ge a\ge0$, proven by showing that a Feynman diagram in two spacetime dimensions generates the enumeration of staircase polygons in four dimensions.
[ { "created": "Thu, 31 Jan 2008 03:14:13 GMT", "version": "v1" }, { "created": "Fri, 1 Feb 2008 10:48:33 GMT", "version": "v2" }, { "created": "Wed, 6 Feb 2008 05:17:25 GMT", "version": "v3" } ]
2008-02-06
[ [ "Broadhurst", "David", "" ] ]
A proof is found for the elliptic integral evaluation of the Bessel moment $$M:=\int_0^\infty t I_0^2(t)K_0^2(t)K_0(2t) {\rm d}t ={1/12} {\bf K}(\sin(\pi/12)){\bf K}(\cos(\pi/12)) =\frac{\Gamma^6(\frac13)}{64\pi^22^{2/3}}$$ resulting from an angular average of a 2-loop 4-point massive Feynman diagram, with one internal mass doubled. This evaluation follows from contour integration of the Green function for a hexagonal lattice, thereby relating $M$ to a linear combination of two more tractable moments, one given by the Green function for a diamond lattice and both evaluated by using W.N. Bailey's reduction of an Appell double series to a product of elliptic integrals. Cubic and sesquiplicate modular transformations of an elliptic integral from the equal-mass Dalitz plot are proven and used extensively. Derivations are given of the sum rules $$\int_0^\infty(I_0(a t)K_0(a t)-\frac{2}{\pi} K_0(4a t) K_0(t))K_0(t) {\rm d}t=0$$ with $a>0$, proven by analytic continuation of an identity from Bailey's work, and $$\int_0^\infty t I_0(a t)(I_0^3(a t)K_0(8t)- \frac{1}{4\pi^2} I_0(t)K_0^3(t)) {\rm d}t=0$$ with $2\ge a\ge0$, proven by showing that a Feynman diagram in two spacetime dimensions generates the enumeration of staircase polygons in four dimensions.
7.734946
9.504927
8.643003
8.17879
8.529366
9.508989
9.619337
8.925379
8.331683
9.672556
8.032326
8.082022
7.812959
7.714026
7.950075
8.039797
7.753067
7.836885
7.674408
8.081162
7.735247
0906.1969
Raoul Santachiara
Benoit Estienne and Raoul Santachiara
Relating Jack wavefunctions to WA_{k-1} theories
13 pages. Published version
J. Phys. A: Math. Theor. 42 No 44 (6 November 2009) 445209
10.1088/1751-8113/42/44/445209
null
hep-th cond-mat.str-el
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The (k,r)-admissible Jack polynomials, recently proposed as many-body wavefunctions for non-Abelian fractional quantum Hall systems, have been conjectured to be related to some correlation functions of the minimal model WA_{k-1}(k+1,k+r) of the WA_{k-1} algebra. By studying the degenerate representations of the WA_{k-1}(k+1,k+r) theory, we provide a proof for this conjecture.
[ { "created": "Wed, 10 Jun 2009 16:37:30 GMT", "version": "v1" }, { "created": "Thu, 26 Nov 2009 10:49:50 GMT", "version": "v2" } ]
2015-05-13
[ [ "Estienne", "Benoit", "" ], [ "Santachiara", "Raoul", "" ] ]
The (k,r)-admissible Jack polynomials, recently proposed as many-body wavefunctions for non-Abelian fractional quantum Hall systems, have been conjectured to be related to some correlation functions of the minimal model WA_{k-1}(k+1,k+r) of the WA_{k-1} algebra. By studying the degenerate representations of the WA_{k-1}(k+1,k+r) theory, we provide a proof for this conjecture.
7.474775
6.870831
10.460567
6.087417
6.696898
7.708579
6.823969
7.576994
7.242606
9.669236
7.162272
6.325606
9.075519
7.046444
6.766649
6.775961
6.817203
6.864341
6.893126
7.780074
6.748174
2207.05718
Andrea Bevilacqua
Andrea Bevilacqua
$\kappa$-deformed complex fields, (discrete) symmetries, and charges
Presented at the Ninth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, May 17-26, 2022
null
null
null
hep-th gr-qc hep-ph
http://creativecommons.org/licenses/by/4.0/
We will briefly describe how to build a field theory of a complex scalar field in the $\kappa$-Minkowski spacetime. After introducing the action, we will shortly describe its properties under both continuous and deformed symmetry transformations. We will then describe how to compute the charges and describe their non-trivial properties due to $\kappa$-deformation. We will conclude with the experimental significance of the model, particularly in the context of decay probability differences between particles and antiparticles.
[ { "created": "Wed, 6 Jul 2022 20:44:17 GMT", "version": "v1" } ]
2022-07-13
[ [ "Bevilacqua", "Andrea", "" ] ]
We will briefly describe how to build a field theory of a complex scalar field in the $\kappa$-Minkowski spacetime. After introducing the action, we will shortly describe its properties under both continuous and deformed symmetry transformations. We will then describe how to compute the charges and describe their non-trivial properties due to $\kappa$-deformation. We will conclude with the experimental significance of the model, particularly in the context of decay probability differences between particles and antiparticles.
10.974308
9.848937
10.901119
9.395328
9.559396
9.983296
10.114033
9.233292
10.049075
10.926514
9.354058
10.330756
10.468336
10.251747
10.116087
10.017859
9.907004
9.98005
10.090051
10.509639
9.961033
1211.6742
Christoph Mayrhofer
Christoph Mayrhofer, Eran Palti, Timo Weigand
U(1) symmetries in F-theory GUTs with multiple sections
46 pages, 3 figures; v2 typos corrected, citations added
null
10.1007/JHEP03(2013)098
null
hep-th hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a systematic construction of F-theory compactifications with Abelian gauge symmetries in addition to a non-Abelian gauge group G. The formalism is generally applicable to models in global Tate form but we focus on the phenomenologically interesting case of G=SU(5). The Abelian gauge factors arise due to extra global sections resulting from a specific factorisation of the Tate polynomial which describes the elliptic fibration. These constructions, which accommodate up to four different U(1) factors, are worked out in detail for the two possible embeddings of a single U(1) factor into E8, usually denoted SU(5) x U(1)_X and SU(5) x U(1)_PQ. The resolved models can be understood either patchwise via a small resolution or in terms of a P_{1,1,2}[4] description of the elliptic fibration. We derive the U(1) charges of the fields from the geometry, construct the U(1) gauge fluxes and exemplify the structure of the Yukawa interaction points. A particularly interesting result is that the global SU(5) x U(1)_PQ model exhibits extra SU(5)-singlet states which are incompatible with a single global decomposition of the 248 of E8. The states in turn lead to new Yukawa type couplings which have not been considered in local model building.
[ { "created": "Wed, 28 Nov 2012 21:00:02 GMT", "version": "v1" }, { "created": "Thu, 1 Aug 2013 14:35:44 GMT", "version": "v2" } ]
2013-08-02
[ [ "Mayrhofer", "Christoph", "" ], [ "Palti", "Eran", "" ], [ "Weigand", "Timo", "" ] ]
We present a systematic construction of F-theory compactifications with Abelian gauge symmetries in addition to a non-Abelian gauge group G. The formalism is generally applicable to models in global Tate form but we focus on the phenomenologically interesting case of G=SU(5). The Abelian gauge factors arise due to extra global sections resulting from a specific factorisation of the Tate polynomial which describes the elliptic fibration. These constructions, which accommodate up to four different U(1) factors, are worked out in detail for the two possible embeddings of a single U(1) factor into E8, usually denoted SU(5) x U(1)_X and SU(5) x U(1)_PQ. The resolved models can be understood either patchwise via a small resolution or in terms of a P_{1,1,2}[4] description of the elliptic fibration. We derive the U(1) charges of the fields from the geometry, construct the U(1) gauge fluxes and exemplify the structure of the Yukawa interaction points. A particularly interesting result is that the global SU(5) x U(1)_PQ model exhibits extra SU(5)-singlet states which are incompatible with a single global decomposition of the 248 of E8. The states in turn lead to new Yukawa type couplings which have not been considered in local model building.
8.21737
8.424116
8.816298
8.08927
8.600486
8.859181
8.59867
8.414286
8.51512
10.127147
8.03446
8.157891
8.211964
7.976935
8.068439
8.288949
8.135601
7.873188
7.887875
8.343857
7.930743
2111.09570
Zheng Sun
James Brister, Zheng Sun, Greg Yang
A formal notion of genericity and term-by-term vanishing superpotentials at supersymmetric vacua from R-symmetric Wess-Zumino models
8 pages; v2: typos, JHEP pre-publication version
JHEP 12 (2021) 199
10.1007/JHEP12(2021)199
null
hep-th hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is known in previous literature that if a Wess-Zumino model with an R-symmetry gives a supersymmetric vacuum, the superpotential vanishes at the vacuum. In this work, we establish a formal notion of genericity, and show that if the R-symmetric superpotential has generic coefficients, the superpotential vanishes term-by-term at a supersymmetric vacuum. This result constrains the form of the superpotential which leads to a supersymmetric vacuum. It may contribute to a refined classification of R-symmetric Wess-Zumino models, and find applications in string constructions of vacua with small superpotentials. A similar result for a scalar potential system with a scaling symmetry is discussed.
[ { "created": "Thu, 18 Nov 2021 08:10:48 GMT", "version": "v1" }, { "created": "Thu, 30 Dec 2021 05:38:47 GMT", "version": "v2" } ]
2022-01-03
[ [ "Brister", "James", "" ], [ "Sun", "Zheng", "" ], [ "Yang", "Greg", "" ] ]
It is known in previous literature that if a Wess-Zumino model with an R-symmetry gives a supersymmetric vacuum, the superpotential vanishes at the vacuum. In this work, we establish a formal notion of genericity, and show that if the R-symmetric superpotential has generic coefficients, the superpotential vanishes term-by-term at a supersymmetric vacuum. This result constrains the form of the superpotential which leads to a supersymmetric vacuum. It may contribute to a refined classification of R-symmetric Wess-Zumino models, and find applications in string constructions of vacua with small superpotentials. A similar result for a scalar potential system with a scaling symmetry is discussed.
8.155105
7.189572
8.831145
7.289963
7.851095
7.636415
7.803612
7.358979
7.179809
8.786442
7.31767
7.471817
8.071997
7.501349
7.688193
7.37778
7.48515
7.377563
7.28771
8.076615
7.199443
0901.0012
Keun-young Kim
Keun-Young Kim and Ismail Zahed
Nucleon-Nucleon Potential from Holography
44 pages, 9 figures
JHEP 0903:131,2009
10.1088/1126-6708/2009/03/131
null
hep-th hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the holographic model of QCD, baryons are chiral solitons sourced by D4 flavor instantons in bulk of size 1/\sqrt{\lambda} with \lambda=g^2*N_c. Using the ADHM construction we explicit the exact two-instanton solution in bulk. We use it to construct the core NN potential to order N_c/\lambda. The core sources meson fields to order \sqrt{N_c/\lambda} which are shown to contribute to the NN interaction to order N_c/\lambda. In holographic QCD, the NN interaction splits into a small core and a large cloud contribution in line with meson exchange models. The core part of the interaction is repulsive in the central, spin and tensor channels for instantons in the regular gauge. The cloud part of the interaction is dominated by omega exchange in the central channel, by pion exchange in the tensor channel and by axial-vector exchange in the spin and tensor channels. Vector meson exchanges are subdominant in all channels.
[ { "created": "Wed, 31 Dec 2008 17:31:01 GMT", "version": "v1" } ]
2009-04-02
[ [ "Kim", "Keun-Young", "" ], [ "Zahed", "Ismail", "" ] ]
In the holographic model of QCD, baryons are chiral solitons sourced by D4 flavor instantons in bulk of size 1/\sqrt{\lambda} with \lambda=g^2*N_c. Using the ADHM construction we explicit the exact two-instanton solution in bulk. We use it to construct the core NN potential to order N_c/\lambda. The core sources meson fields to order \sqrt{N_c/\lambda} which are shown to contribute to the NN interaction to order N_c/\lambda. In holographic QCD, the NN interaction splits into a small core and a large cloud contribution in line with meson exchange models. The core part of the interaction is repulsive in the central, spin and tensor channels for instantons in the regular gauge. The cloud part of the interaction is dominated by omega exchange in the central channel, by pion exchange in the tensor channel and by axial-vector exchange in the spin and tensor channels. Vector meson exchanges are subdominant in all channels.
8.345276
8.109664
8.943737
7.865426
8.027637
8.59689
7.983269
9.325633
8.30081
9.085838
8.247167
8.102098
8.155618
8.068645
8.308525
8.433203
8.031375
8.179425
7.959911
7.981869
8.303383
hep-th/9803180
Hans Kastrup
H.A. Kastrup (RWTH Aachen)
Schwarzschild Black Hole Quantum Statistics, Droplet Nucleation and DLCQ Matrix Theory
21 pages, Latex; References and few remarks added
null
null
PITHA 98/10
hep-th gr-qc
null
Generalizing previous quantum gravity results for Schwarzschild black holes from 4 to D>4 spacetime dimensions yields an energy spectrum E_n = n^{1-1/(D-2)} sigma E_P, n=1,2,..., sigma = O(1). Assuming the degeneracies of these levels to be given by g^n, g>1, leads to a partition function which is the same as that of the primitive droplet nucleation model for 1st-order phase transitions in D-2 spatial dimensions. Exploiting the well-known properties of the so-called critical droplets of this model immediately leads to the Hawking temperature and the Bekenstein-Hawking entropy of Schwarzschild black holes. Thus, the "holographic principle" of 't Hooft and Susskind is naturally realised. The values of temperature and entropy appear closely related to the imaginary part of the partition function which describes metastable states. Finally some striking conceptual similarities ("correspondence point" etc.) between the droplet nucleation picture and the very recent approach to the quantum statistics of Schwarzschild black holes in the framework of the DLCQ Matrix theory are pointed out.
[ { "created": "Sun, 22 Mar 1998 20:37:44 GMT", "version": "v1" }, { "created": "Fri, 3 Apr 1998 15:07:09 GMT", "version": "v2" }, { "created": "Thu, 25 Jun 1998 18:07:48 GMT", "version": "v3" } ]
2007-05-23
[ [ "Kastrup", "H. A.", "", "RWTH Aachen" ] ]
Generalizing previous quantum gravity results for Schwarzschild black holes from 4 to D>4 spacetime dimensions yields an energy spectrum E_n = n^{1-1/(D-2)} sigma E_P, n=1,2,..., sigma = O(1). Assuming the degeneracies of these levels to be given by g^n, g>1, leads to a partition function which is the same as that of the primitive droplet nucleation model for 1st-order phase transitions in D-2 spatial dimensions. Exploiting the well-known properties of the so-called critical droplets of this model immediately leads to the Hawking temperature and the Bekenstein-Hawking entropy of Schwarzschild black holes. Thus, the "holographic principle" of 't Hooft and Susskind is naturally realised. The values of temperature and entropy appear closely related to the imaginary part of the partition function which describes metastable states. Finally some striking conceptual similarities ("correspondence point" etc.) between the droplet nucleation picture and the very recent approach to the quantum statistics of Schwarzschild black holes in the framework of the DLCQ Matrix theory are pointed out.
9.004613
10.755023
8.169328
8.20261
8.233717
8.843357
9.830311
7.722906
9.366172
7.242472
9.193186
8.905443
8.774323
8.682068
8.660671
8.86198
9.221616
8.591103
8.767396
8.382022
8.548872
2004.07989
Dmitry Ponomarev
Balakrishnan Nagaraj and Dmitry Ponomarev
Spinor-Helicity Formalism for Massless Fields in AdS$_4$ III: Contact Four-Point Amplitudes
22 pages
null
10.1007/JHEP08(2020)012
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study contact four-point amplitudes in the spinor-helicity formalism in anti-de Sitter space. We find that these amplitudes can be brought to an especially simple form, which we call canonical. Next, we classify consistent contact amplitudes by requiring correct transformation properties with respect to the AdS isometry algebra. Finally, we establish a connection between the canonical form of AdS amplitudes and scalar multi-trace conformal primaries in flat space.
[ { "created": "Thu, 16 Apr 2020 23:08:25 GMT", "version": "v1" } ]
2020-08-26
[ [ "Nagaraj", "Balakrishnan", "" ], [ "Ponomarev", "Dmitry", "" ] ]
We study contact four-point amplitudes in the spinor-helicity formalism in anti-de Sitter space. We find that these amplitudes can be brought to an especially simple form, which we call canonical. Next, we classify consistent contact amplitudes by requiring correct transformation properties with respect to the AdS isometry algebra. Finally, we establish a connection between the canonical form of AdS amplitudes and scalar multi-trace conformal primaries in flat space.
8.358312
7.695902
8.682638
7.030178
7.324851
6.986756
7.269057
7.077179
6.791245
8.782375
7.451951
7.144667
7.564175
6.917493
7.027301
7.138308
7.24779
7.357913
6.978499
7.333511
7.243422
hep-th/9912246
Herbert Hamber
H.W. Hamber
On the Gravitational Scaling Dimensions
LaTeX, 50 pages, 17 figures
Phys.Rev. D61 (2000) 124008
10.1103/PhysRevD.61.124008
UCI-99-20
hep-th
null
A model for quantized gravitation based on the simplicial lattice discretization is studied in detail using a comprehensive finite size scaling analysis combined with renormalization group methods. The results are consistent with a value for the universal critical exponent for gravitation $\nu=1/3$, and suggest a simple relationship between Newton's constant, the gravitational correlation length and the observable average space-time curvature. Some perhaps testable phenomenological implications of these results are discussed. To achieve a high numerical accuracy in the evaluation of the lattice path integral a dedicated parallel machine was assembled.
[ { "created": "Fri, 24 Dec 1999 06:09:02 GMT", "version": "v1" } ]
2009-10-31
[ [ "Hamber", "H. W.", "" ] ]
A model for quantized gravitation based on the simplicial lattice discretization is studied in detail using a comprehensive finite size scaling analysis combined with renormalization group methods. The results are consistent with a value for the universal critical exponent for gravitation $\nu=1/3$, and suggest a simple relationship between Newton's constant, the gravitational correlation length and the observable average space-time curvature. Some perhaps testable phenomenological implications of these results are discussed. To achieve a high numerical accuracy in the evaluation of the lattice path integral a dedicated parallel machine was assembled.
15.042902
9.794276
12.771607
10.270901
10.271685
10.259731
10.397264
11.617003
10.657035
15.024571
11.689178
12.148973
12.996906
12.694928
12.707068
12.427332
12.524961
13.228658
12.757502
13.086921
12.672645
0902.0757
Saulo Pereira H
J. Frenkel, S. H. Pereira, N. Takahashi
Hard thermal loops in static external fields
7 pages, 2 figures
Phys. Rev. D 79, 085001 (2009)
10.1103/PhysRevD.79.085001
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study, in the imaginary-time formalism, the high temperature behavior of n-point thermal loops in static Yang-Mills and gravitational fields. We show that in this regime, any hard thermal loop gives the same leading contribution as the one obtained by evaluating the loop at zero external energies and momenta.
[ { "created": "Wed, 4 Feb 2009 17:59:41 GMT", "version": "v1" } ]
2011-11-10
[ [ "Frenkel", "J.", "" ], [ "Pereira", "S. H.", "" ], [ "Takahashi", "N.", "" ] ]
We study, in the imaginary-time formalism, the high temperature behavior of n-point thermal loops in static Yang-Mills and gravitational fields. We show that in this regime, any hard thermal loop gives the same leading contribution as the one obtained by evaluating the loop at zero external energies and momenta.
15.604991
12.562009
15.282726
12.314222
13.672701
13.664342
13.204738
12.662094
13.007763
16.362841
14.258632
12.564657
15.12016
13.416434
12.693324
13.020795
12.618072
12.882009
13.316775
14.099639
13.123731
0808.3444
Dan Radu Grigore
D. R. Grigore, G. Scharf
Massive Yang-Mills Fields in Interaction with Gravity
no figures, 13 pages
null
null
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We determine the most general form of the interaction between the gravitational field and an arbitrary Yang-Mills system of fields (massless and massive). We work in the perturbative quantum framework of the causal approach (of Epstein and Glaser) and use a cohomological definition of gauge invariance for both gauge fields. We also consider the case of massive gravity. We discuss the question whether gravity couples to the unphysical degrees of freedom in the Yang-Mills fields.
[ { "created": "Tue, 26 Aug 2008 05:32:11 GMT", "version": "v1" } ]
2008-08-27
[ [ "Grigore", "D. R.", "" ], [ "Scharf", "G.", "" ] ]
We determine the most general form of the interaction between the gravitational field and an arbitrary Yang-Mills system of fields (massless and massive). We work in the perturbative quantum framework of the causal approach (of Epstein and Glaser) and use a cohomological definition of gauge invariance for both gauge fields. We also consider the case of massive gravity. We discuss the question whether gravity couples to the unphysical degrees of freedom in the Yang-Mills fields.
9.714033
9.255571
8.987745
8.225709
9.185653
8.377147
8.499676
8.352258
8.152175
10.014733
7.938228
8.680406
9.277068
8.818451
8.871354
8.896172
9.148108
8.764486
8.984322
8.905233
8.648434
hep-th/0212038
Daniel Heber Theodoro Franco
Daniel H.T. Franco and Caio M.M. Polito
Supersymmetric Field-Theoretic Models on a Supermanifold
Final version to appear in J.Math.Phys
J.Math.Phys. 45 (2004) 1447-1473
10.1063/1.1669058
null
hep-th math-ph math.MP
null
We propose the extension of some structural aspects that have successfully been applied in the development of the theory of quantum fields propagating on a general spacetime manifold so as to include superfield models on a supermanifold. We only deal with the limited class of supermanifolds which admit the existence of a smooth body manifold structure. Our considerations are based on the Catenacci-Reina-Teofillatto-Bryant approach to supermanifolds. In particular, we show that the class of supermanifolds constructed by Bonora-Pasti-Tonin satisfies the criterions which guarantee that a supermanifold admits a Hausdorff body manifold. This construction is the closest to the physicist's intuitive view of superspace as a manifold with some anticommuting coordinates, where the odd sector is topologically trivial. The paper also contains a new construction of superdistributions and useful results on the wavefront set of such objects. Moreover, a generalization of the spectral condition is formulated using the notion of the wavefront set of superdistributions, which is equivalent to the requirement that all of the component fields satisfy, on the body manifold, a microlocal spectral condition proposed by Brunetti-Fredenhagen-K\"ohler.
[ { "created": "Wed, 4 Dec 2002 00:22:55 GMT", "version": "v1" }, { "created": "Sun, 8 Dec 2002 02:07:07 GMT", "version": "v2" }, { "created": "Sun, 18 Jan 2004 02:19:51 GMT", "version": "v3" } ]
2009-11-07
[ [ "Franco", "Daniel H. T.", "" ], [ "Polito", "Caio M. M.", "" ] ]
We propose the extension of some structural aspects that have successfully been applied in the development of the theory of quantum fields propagating on a general spacetime manifold so as to include superfield models on a supermanifold. We only deal with the limited class of supermanifolds which admit the existence of a smooth body manifold structure. Our considerations are based on the Catenacci-Reina-Teofillatto-Bryant approach to supermanifolds. In particular, we show that the class of supermanifolds constructed by Bonora-Pasti-Tonin satisfies the criterions which guarantee that a supermanifold admits a Hausdorff body manifold. This construction is the closest to the physicist's intuitive view of superspace as a manifold with some anticommuting coordinates, where the odd sector is topologically trivial. The paper also contains a new construction of superdistributions and useful results on the wavefront set of such objects. Moreover, a generalization of the spectral condition is formulated using the notion of the wavefront set of superdistributions, which is equivalent to the requirement that all of the component fields satisfy, on the body manifold, a microlocal spectral condition proposed by Brunetti-Fredenhagen-K\"ohler.
10.567698
12.58724
12.039125
11.850629
12.648623
11.86434
11.988195
11.475384
12.188776
13.829082
11.662646
10.583756
11.345756
10.704941
10.693107
10.668309
10.800413
10.702238
10.652391
11.067091
10.634159
hep-th/0204219
null
Brian P. Dolan, Denjoe O'Connor and Peter Presnajder
Matrix models on the fuzzy sphere
6 pages, LaTeX2e, Talk given at the NATO Advanced Research Workshop on Confiment, Topology, and other Non-Perturbative Aspects of QCD, Stara Lesna, Slovakia, Jan. 21-27, 2002
null
null
null
hep-th
null
Field theory on a fuzzy noncommutative sphere can be considered as a particular matrix approximation of field theory on the standard commutative sphere. We investigate from this point of view the scalar $\phi^4$ theory. We demonstrate that the UV/IR mixing problems of this theory are localized to the tadpole diagrams and can be removed by an appropiate (fuzzy) normal ordering of the $\phi^4$ vertex. The perturbative expansion of this theory reduces in the commutative limit to that on the commutative sphere.
[ { "created": "Thu, 25 Apr 2002 13:22:32 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dolan", "Brian P.", "" ], [ "O'Connor", "Denjoe", "" ], [ "Presnajder", "Peter", "" ] ]
Field theory on a fuzzy noncommutative sphere can be considered as a particular matrix approximation of field theory on the standard commutative sphere. We investigate from this point of view the scalar $\phi^4$ theory. We demonstrate that the UV/IR mixing problems of this theory are localized to the tadpole diagrams and can be removed by an appropiate (fuzzy) normal ordering of the $\phi^4$ vertex. The perturbative expansion of this theory reduces in the commutative limit to that on the commutative sphere.
7.977588
6.068382
6.854178
5.659004
6.303251
5.819642
5.819487
5.953323
5.75452
6.888155
5.987259
5.731376
6.487722
5.950146
5.974732
5.821149
5.813551
5.902812
5.822909
6.594172
5.995166
hep-th/9412191
Jose Gaite
Jose Gaite
Deformed 2d CFT: Landau-Ginzburg Lagrangians and Toda theories
13 pages LaTeX. 2 PostScript figures (uuencoded tarred files)
null
null
ITFA-94-31
hep-th
null
We consider the relation between affine Toda field theories (ATFT) and Landau-Ginzburg Lagrangians as alternative descriptions of deformed 2d CFT. First, we show that the two concrete implementations of the deformation are consistent once quantum corrections to the Landau-Ginzburg Lagrangian are taken into account. Second, inspired by Gepner's fusion potentials, we explore the possibility of a direct connection between both types of Lagrangians; namely, whether they can be transformed one into another by a change of variables. This direct connection exists in the one-variable case, namely, for the sine-Gordon model, but cannot be established in general. Nevertheless, we show that both potentials exhibit the same structure of extrema.
[ { "created": "Wed, 21 Dec 1994 19:42:55 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gaite", "Jose", "" ] ]
We consider the relation between affine Toda field theories (ATFT) and Landau-Ginzburg Lagrangians as alternative descriptions of deformed 2d CFT. First, we show that the two concrete implementations of the deformation are consistent once quantum corrections to the Landau-Ginzburg Lagrangian are taken into account. Second, inspired by Gepner's fusion potentials, we explore the possibility of a direct connection between both types of Lagrangians; namely, whether they can be transformed one into another by a change of variables. This direct connection exists in the one-variable case, namely, for the sine-Gordon model, but cannot be established in general. Nevertheless, we show that both potentials exhibit the same structure of extrema.
9.168756
8.345586
9.952465
8.618638
8.703155
9.145457
8.165178
8.774171
8.662491
9.974586
8.544243
8.498316
9.566936
8.604318
8.6495
8.625626
8.624833
8.284899
8.80519
9.46525
8.471665
hep-th/9712031
Marotta Vincenzo
Vincenzo Marotta
Sress-Tensor for parafermions from the generalized Frenkel-Kac construction of affine algebra
Comments and references added, 8 pages, Revtex
Mod.Phys.Lett.A13:853-860,1998
10.1142/S0217732398000929
DSF-T-56/97
hep-th
null
I discuss a realization of stress-tensor for parafermion theories following the generalized Frenkel-Kac construction for higher level Kac-Moody algebras. All the fields are obtained from $d$=rank free bosons compactified on torus. This gives an alternative realization of Virasoro algebra in terms of a non-local correction of a free field construction which does not fit the usual background charge of Feigin-Fuchs approach.
[ { "created": "Wed, 3 Dec 1997 12:55:35 GMT", "version": "v1" }, { "created": "Mon, 22 Dec 1997 16:08:05 GMT", "version": "v2" } ]
2010-11-19
[ [ "Marotta", "Vincenzo", "" ] ]
I discuss a realization of stress-tensor for parafermion theories following the generalized Frenkel-Kac construction for higher level Kac-Moody algebras. All the fields are obtained from $d$=rank free bosons compactified on torus. This gives an alternative realization of Virasoro algebra in terms of a non-local correction of a free field construction which does not fit the usual background charge of Feigin-Fuchs approach.
19.933245
18.100168
20.501646
16.844481
17.884914
18.577639
16.370829
17.864889
17.639246
20.422565
17.511724
16.873301
18.228552
16.287468
15.93994
16.279182
16.195358
16.810537
16.250565
17.930128
16.539228
1811.11229
Ali Zahabi
Sanjaye Ramgoolam, Mark C. Wilson and Ali Zahabi
Quiver Asymptotics: $\mathcal{N}=1$ Free Chiral Ring
19 pages, 8 figures, some clarifications on minimal critical points are added
null
null
null
hep-th math-ph math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The large N generating functions for the counting of chiral operators in $\mathcal{N}=1$, four-dimensional quiver gauge theories have previously been obtained in terms of the weighted adjacency matrix of the quiver diagram. We introduce the methods of multi-variate asymptotic analysis to study this counting in the limit of large charges. We describe a Hagedorn phase transition associated with this asymptotics, which refines and generalizes known results on the 2-matrix harmonic oscillator. Explicit results are obtained for two infinite classes of quiver theories, namely the generalized clover quivers and affine $\mathbb{C}^3/\hat{A}_n$ orbifold quivers.
[ { "created": "Tue, 27 Nov 2018 19:54:47 GMT", "version": "v1" }, { "created": "Mon, 3 Jun 2019 15:06:29 GMT", "version": "v2" } ]
2019-06-04
[ [ "Ramgoolam", "Sanjaye", "" ], [ "Wilson", "Mark C.", "" ], [ "Zahabi", "Ali", "" ] ]
The large N generating functions for the counting of chiral operators in $\mathcal{N}=1$, four-dimensional quiver gauge theories have previously been obtained in terms of the weighted adjacency matrix of the quiver diagram. We introduce the methods of multi-variate asymptotic analysis to study this counting in the limit of large charges. We describe a Hagedorn phase transition associated with this asymptotics, which refines and generalizes known results on the 2-matrix harmonic oscillator. Explicit results are obtained for two infinite classes of quiver theories, namely the generalized clover quivers and affine $\mathbb{C}^3/\hat{A}_n$ orbifold quivers.
10.224718
8.879071
11.16669
9.163311
9.469051
9.055579
9.802376
9.431346
8.830467
11.216737
9.299188
8.683893
9.705476
9.058755
9.279621
8.947015
8.960417
9.462709
8.99733
10.154219
8.931546
hep-th/0408129
P. Narayana Swamy
P. Narayana Swamy
Transverse Radiation realized as Deformed Harmonic Oscillators
14 pages, LateX, submitted for publication
Physica A353 (2005) 119-132
null
null
hep-th
null
We present a theory of quantized radiation fields described in terms of q-deformed harmonic oscillators. The creation and annihilation operators satisfy deformed commutation relations and the Fock space of states is constructed in this formalism in terms of basic numbers familiar from the theory of quantum groups. Expressions for the Hamiltonian and momentum arising from deformed Heisenberg relations are obtained and their consequences investigated. The energy momentum properties of the vacuum state are studied. The commutation relation for the fields is shown to involve polarization sums more intricate than those encountered in standard quantum electrodynamics, thus requiring explicit representations of polarization vectors. The electric field commutation rules are investigated under simplifying assumptions of polarization states, and the commutator in the deformed theory in this case is shown to be reminiscent of the coordinate-momentum uncertainty relation in the theory of q-deformed quantum oscillators.
[ { "created": "Wed, 18 Aug 2004 19:31:34 GMT", "version": "v1" } ]
2007-05-23
[ [ "Swamy", "P. Narayana", "" ] ]
We present a theory of quantized radiation fields described in terms of q-deformed harmonic oscillators. The creation and annihilation operators satisfy deformed commutation relations and the Fock space of states is constructed in this formalism in terms of basic numbers familiar from the theory of quantum groups. Expressions for the Hamiltonian and momentum arising from deformed Heisenberg relations are obtained and their consequences investigated. The energy momentum properties of the vacuum state are studied. The commutation relation for the fields is shown to involve polarization sums more intricate than those encountered in standard quantum electrodynamics, thus requiring explicit representations of polarization vectors. The electric field commutation rules are investigated under simplifying assumptions of polarization states, and the commutator in the deformed theory in this case is shown to be reminiscent of the coordinate-momentum uncertainty relation in the theory of q-deformed quantum oscillators.
10.153882
11.258756
11.47878
10.290345
10.502703
11.093006
10.747377
10.226152
10.767107
11.294686
10.28759
9.852601
10.354253
10.236419
10.147387
10.181597
9.705544
10.16396
9.847935
10.662237
9.898917
hep-th/0201225
Carlos Castro
Carlos Castro
Anti de Sitter Gravity from BF-Chern-Simons-Higgs Theories
6 pages, plain Tex, Revised. References are are added
Mod.Phys.Lett. A17 (2002) 2095-2103
10.1142/S0217732302008721
null
hep-th
null
It is shown that an action inspired from a BF and Chern-Simons model, based on the $AdS_4$ isometry group SO(3, 2), with the inclusion of a Higgs potential term, furnishes the MacDowell-Mansouri-Chamseddine-West action for gravity, with a Gauss-Bonnet and cosmological constant term. The $AdS_4$ space is a natural vacuum of the theory. Using Vasiliev's procedure to construct higher spin massless fields in AdS spaces and a suitable star product, we discuss the preliminary steps to construct the corresponding higher-spin action in $AdS_4$ space representing the higher spin extension of this model. Brief remarks on Noncommutative Gravity are made.
[ { "created": "Mon, 28 Jan 2002 17:14:59 GMT", "version": "v1" }, { "created": "Thu, 11 Apr 2002 20:34:23 GMT", "version": "v2" } ]
2009-11-07
[ [ "Castro", "Carlos", "" ] ]
It is shown that an action inspired from a BF and Chern-Simons model, based on the $AdS_4$ isometry group SO(3, 2), with the inclusion of a Higgs potential term, furnishes the MacDowell-Mansouri-Chamseddine-West action for gravity, with a Gauss-Bonnet and cosmological constant term. The $AdS_4$ space is a natural vacuum of the theory. Using Vasiliev's procedure to construct higher spin massless fields in AdS spaces and a suitable star product, we discuss the preliminary steps to construct the corresponding higher-spin action in $AdS_4$ space representing the higher spin extension of this model. Brief remarks on Noncommutative Gravity are made.
8.974352
9.123435
8.861151
8.390593
8.66501
8.327485
8.728581
8.632742
8.596307
9.458113
8.067408
8.588779
8.61302
8.476336
8.186363
8.385571
8.449333
8.532776
8.671608
8.462998
8.179704
hep-th/9702179
Andreas Karch
Andreas Karch
More on N=1 Self-Dualities and Exceptional Gauge Groups
10 pages, LaTeX2e, using utarticle.cls (included)
Phys.Lett. B405 (1997) 280-286
10.1016/S0370-2693(97)00604-7
HUB-EP-97/13
hep-th
null
Starting from a generalization of a recent result on self-duality we systematically analyze self-dual models. We find a criterion to judge whether a given model is self-dual or not. With this tool we construct some new self-dual pairs, focussing on examples with exceptional gauge groups.
[ { "created": "Tue, 25 Feb 1997 15:27:14 GMT", "version": "v1" } ]
2009-10-30
[ [ "Karch", "Andreas", "" ] ]
Starting from a generalization of a recent result on self-duality we systematically analyze self-dual models. We find a criterion to judge whether a given model is self-dual or not. With this tool we construct some new self-dual pairs, focussing on examples with exceptional gauge groups.
11.898889
10.926312
11.936879
10.48946
11.139554
10.298877
10.473443
10.509636
10.176003
12.666908
9.844072
10.84909
11.81915
10.899135
11.286299
10.563148
10.738693
10.895394
10.755869
11.921381
10.941657
hep-th/0101061
Richard Battye
R.A. Battye and B. Carter
Generic junction conditions in brane-world scenarios
6 pages
Phys.Lett. B509 (2001) 331-336
10.1016/S0370-2693(01)00495-6
null
hep-th
null
We present the generic junction conditions obeyed by a co-dimension one brane in an arbitrary background spacetime. As well as the usual Darmois-Israel junction conditions which relate the discontinuity in the extrinsic curvature to the to the energy-momentum tensor of matter which is localized to the brane, we point out that another condition must also be obeyed. This condition, which is the analogous to Newton's second law for a point particle, is trivially satisfied when $Z_2$ symmetry is enforced by hand, but in more general circumstances governs the evolution of the brane world-volume. As an illustration of its effect we compute the force on the brane due to a form field.
[ { "created": "Wed, 10 Jan 2001 17:38:31 GMT", "version": "v1" } ]
2009-11-07
[ [ "Battye", "R. A.", "" ], [ "Carter", "B.", "" ] ]
We present the generic junction conditions obeyed by a co-dimension one brane in an arbitrary background spacetime. As well as the usual Darmois-Israel junction conditions which relate the discontinuity in the extrinsic curvature to the to the energy-momentum tensor of matter which is localized to the brane, we point out that another condition must also be obeyed. This condition, which is the analogous to Newton's second law for a point particle, is trivially satisfied when $Z_2$ symmetry is enforced by hand, but in more general circumstances governs the evolution of the brane world-volume. As an illustration of its effect we compute the force on the brane due to a form field.
8.045582
7.759159
7.523664
7.141094
8.195049
7.627402
7.62709
7.115751
7.647255
8.251093
7.660635
7.194187
7.675796
7.637256
7.541221
7.613674
7.447712
7.440399
7.442567
7.69173
7.477438
1211.1957
Stefano Giusto
Stefano Giusto, Rodolfo Russo
Perturbative superstrata
31 pages
null
10.1016/j.nuclphysb.2012.12.012
DFPD-12-TH-15, QMUL-PH-12-16
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a particular class of D-brane bound states in type IIB string theory (dubbed "superstrata") that describe microstates of the 5D Strominger-Vafa black hole. By using the microscopic description in terms of open strings we probe these configurations with generic light closed string states and from there we obtain a linearized solution of six-dimensional supergravity preserving four supersymmetries. We then discuss two generalizations of the solution obtained which capture different types of non-linear corrections. By using this construction, we can provide the first explicit example of a superstratum solution which includes the effects of the KK-monopole dipole charge to first order.
[ { "created": "Thu, 8 Nov 2012 19:57:48 GMT", "version": "v1" } ]
2015-06-12
[ [ "Giusto", "Stefano", "" ], [ "Russo", "Rodolfo", "" ] ]
We study a particular class of D-brane bound states in type IIB string theory (dubbed "superstrata") that describe microstates of the 5D Strominger-Vafa black hole. By using the microscopic description in terms of open strings we probe these configurations with generic light closed string states and from there we obtain a linearized solution of six-dimensional supergravity preserving four supersymmetries. We then discuss two generalizations of the solution obtained which capture different types of non-linear corrections. By using this construction, we can provide the first explicit example of a superstratum solution which includes the effects of the KK-monopole dipole charge to first order.
11.104835
11.214309
12.606981
10.504663
10.902141
11.205516
10.681698
10.579064
10.653494
15.060616
10.73072
10.636562
11.706732
10.307764
10.425286
10.560023
10.395385
10.41375
10.553658
11.548371
10.35138
2112.02122
Jose Queiruga
J. Queiruga
Moduli spaces of BPS lumps with holomorphic impurities
22 pages, 2 figures
null
null
null
hep-th
http://creativecommons.org/licenses/by/4.0/
A self-dual generalization of the lump-impurity system is introduced. This model possesses lump-antilump-like pairs as static solutions of the pertinent Bogomolny equations. This allows for a moduli space approximation analysis of the BPS solutions which are identified as lump-antilump configurations. Some geometrical properties of the resulting moduli are analyzed. In addition, it is argued that, this type of impurity models can be interpreted as a limit of certain non-impurity theories.
[ { "created": "Fri, 3 Dec 2021 19:06:54 GMT", "version": "v1" } ]
2021-12-07
[ [ "Queiruga", "J.", "" ] ]
A self-dual generalization of the lump-impurity system is introduced. This model possesses lump-antilump-like pairs as static solutions of the pertinent Bogomolny equations. This allows for a moduli space approximation analysis of the BPS solutions which are identified as lump-antilump configurations. Some geometrical properties of the resulting moduli are analyzed. In addition, it is argued that, this type of impurity models can be interpreted as a limit of certain non-impurity theories.
14.253568
13.424674
13.568293
12.127696
12.014391
12.403482
12.21986
12.720324
11.068841
15.009513
12.493842
11.96928
13.347532
12.161842
11.642255
11.948157
11.871773
12.21048
12.283893
13.40665
11.922609
1612.07148
Damiano Anselmi
Damiano Anselmi
Algebraic cutting equations
33 pages, 16 figures; v2: minor changes, Ann. Phys
Ann. Phys. 394 (2018) 294
10.1016/j.aop.2018.04.034
null
hep-th math-ph math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The cutting equations are diagrammatic identities that are used to prove perturbative unitarity in quantum field theory. In this paper, we derive algebraic, upgraded versions of them. Differently from the diagrammatic versions, the algebraic identities also holds for propagators with arbitrary, nonvanishing widths. In particular, the cut propagators do not need to vanish off shell. The new approach provides a framework to address unsolved problems of perturbative quantum field theory and a tool to investigate perturbative unitarity in higher-derivative theories that are relevant to the problem of quantum gravity, such as the Lee-Wick models and the fakeon models.
[ { "created": "Wed, 21 Dec 2016 14:39:50 GMT", "version": "v1" }, { "created": "Fri, 25 May 2018 05:49:41 GMT", "version": "v2" } ]
2018-05-28
[ [ "Anselmi", "Damiano", "" ] ]
The cutting equations are diagrammatic identities that are used to prove perturbative unitarity in quantum field theory. In this paper, we derive algebraic, upgraded versions of them. Differently from the diagrammatic versions, the algebraic identities also holds for propagators with arbitrary, nonvanishing widths. In particular, the cut propagators do not need to vanish off shell. The new approach provides a framework to address unsolved problems of perturbative quantum field theory and a tool to investigate perturbative unitarity in higher-derivative theories that are relevant to the problem of quantum gravity, such as the Lee-Wick models and the fakeon models.
10.249255
9.888232
10.077037
8.749042
9.241382
9.435169
9.428857
9.559536
8.647747
10.226581
9.140181
8.631373
8.539092
8.592211
8.70506
8.617864
8.870482
8.657346
8.826089
8.736889
9.352822
hep-th/0407122
Urs Schreiber
Urs Schreiber
Nonabelian 2-forms and loop space connections from SCFT deformations
34 pages, general discussion of flat loop space connections added, references added, background material and clarifications added
null
null
null
hep-th math-ph math.MP
null
It is shown how the deformation of the superconformal generators on the string's worldsheet by a nonabelian super-Wilson line gives rise to a covariant exterior derivative on loop space coming from a nonabelian 2-form on target space. The expression obtained this way is new in the context of strings, and its consistency is verified by checking that its global gauge transformations on loop space imply the familiar gauge transformations on target space. We derive the second order gauge transformation from infinitesimal local gauge transformations on loop space and find that a consistent picture is obtained only when the sum of the 2-form and the 1-form field strengths vanish. The same condition has recently been derived from 2-group gauge theory reasoning. We observe that this condition implies that the connection on loop space is flat, which is a crucial sufficient condition for the nonabelian surface holonomy induced by it to be well defined. Finally we compute the background equations of motion of the nonabelian 2-form by canceling divergences in the deformed boundary state.
[ { "created": "Wed, 14 Jul 2004 14:30:53 GMT", "version": "v1" }, { "created": "Mon, 26 Jul 2004 17:02:34 GMT", "version": "v2" }, { "created": "Tue, 28 Sep 2004 15:55:55 GMT", "version": "v3" } ]
2007-05-23
[ [ "Schreiber", "Urs", "" ] ]
It is shown how the deformation of the superconformal generators on the string's worldsheet by a nonabelian super-Wilson line gives rise to a covariant exterior derivative on loop space coming from a nonabelian 2-form on target space. The expression obtained this way is new in the context of strings, and its consistency is verified by checking that its global gauge transformations on loop space imply the familiar gauge transformations on target space. We derive the second order gauge transformation from infinitesimal local gauge transformations on loop space and find that a consistent picture is obtained only when the sum of the 2-form and the 1-form field strengths vanish. The same condition has recently been derived from 2-group gauge theory reasoning. We observe that this condition implies that the connection on loop space is flat, which is a crucial sufficient condition for the nonabelian surface holonomy induced by it to be well defined. Finally we compute the background equations of motion of the nonabelian 2-form by canceling divergences in the deformed boundary state.
10.984108
10.393327
11.509972
10.218178
11.115075
11.193698
11.01937
11.114552
10.370658
12.058435
10.064739
10.354838
10.699684
10.102736
10.482162
10.445033
10.248314
10.433224
10.081282
10.628331
10.217444
1206.5134
Yuri Aisaka
Yuri Aisaka, L. Ibiapina Bevilaqua and Brenno C. Vallilo
On semiclassical analysis of pure spinor superstring in an AdS_5 x S^5 background
36 pages
null
10.1007/JHEP09(2012)068
DESY-12-110
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Relation between semiclassical analyses of Green-Schwarz and pure spinor formalisms in an AdS_5 x S^5 background is clarified. It is shown that the two formalisms have identical semiclassical partition functions for a simple family of classical solutions. It is also shown that, when the classical string is furthermore rigid, this in turn implies that the two formalisms predict the same one-loop corrections to spacetime energies.
[ { "created": "Fri, 22 Jun 2012 12:51:13 GMT", "version": "v1" } ]
2015-06-05
[ [ "Aisaka", "Yuri", "" ], [ "Bevilaqua", "L. Ibiapina", "" ], [ "Vallilo", "Brenno C.", "" ] ]
Relation between semiclassical analyses of Green-Schwarz and pure spinor formalisms in an AdS_5 x S^5 background is clarified. It is shown that the two formalisms have identical semiclassical partition functions for a simple family of classical solutions. It is also shown that, when the classical string is furthermore rigid, this in turn implies that the two formalisms predict the same one-loop corrections to spacetime energies.
11.819677
9.693949
11.330037
8.58748
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8.805571
10.054702
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9.829858
8.897536
9.264132
8.554245
9.307026
9.070535
9.267336
10.045685
9.108356
1610.03081
Tim Morris Prof
Tim R. Morris
Large curvature and background scale independence in single-metric approximations to asymptotic safety
34 pages, 2 figures; various small improvements
null
10.1007/JHEP11(2016)160
null
hep-th gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In single-metric approximations to the exact renormalization group (RG) for quantum gravity, it has been not been clear how to treat the large curvature domain beyond the point where the effective cutoff scale $k$ is less than the lowest eigenvalue of the appropriate modified Laplacian. We explain why this puzzle arises from background dependence, resulting in Wilsonian RG concepts being inapplicable. We show that when properly formulated over an ensemble of backgrounds, the Wilsonian RG can be restored. This in turn implies that solutions should be smooth and well defined no matter how large the curvature is taken. Even for the standard single-metric type approximation schemes, this construction can be rigorously derived by imposing a modified Ward identity (mWI) corresponding to rescaling the background metric by a constant factor. However compatibility in this approximation requires the space-time dimension to be six. Solving the mWI and flow equation simultaneously, new variables are then derived that are independent of overall background scale.
[ { "created": "Mon, 10 Oct 2016 20:17:20 GMT", "version": "v1" }, { "created": "Sat, 19 Nov 2016 18:58:23 GMT", "version": "v2" } ]
2016-12-21
[ [ "Morris", "Tim R.", "" ] ]
In single-metric approximations to the exact renormalization group (RG) for quantum gravity, it has been not been clear how to treat the large curvature domain beyond the point where the effective cutoff scale $k$ is less than the lowest eigenvalue of the appropriate modified Laplacian. We explain why this puzzle arises from background dependence, resulting in Wilsonian RG concepts being inapplicable. We show that when properly formulated over an ensemble of backgrounds, the Wilsonian RG can be restored. This in turn implies that solutions should be smooth and well defined no matter how large the curvature is taken. Even for the standard single-metric type approximation schemes, this construction can be rigorously derived by imposing a modified Ward identity (mWI) corresponding to rescaling the background metric by a constant factor. However compatibility in this approximation requires the space-time dimension to be six. Solving the mWI and flow equation simultaneously, new variables are then derived that are independent of overall background scale.
18.169905
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16.174225
hep-th/9501080
Connie Jones
R. J. Henderson and S. G. Rajeev
Solitons in a Bilocal Field Theory
Tex, 18 pages, no figures
Int.J.Mod.Phys. A10 (1995) 3765-3780
10.1142/S0217751X95001777
UR-1403; ER40685-850
hep-th
null
We obtain a bilocal classical field theory as the large $N$ limit of the chiral Gross--Neveu (or non--abelian Thirring) model. Exact classical solutions that describe topological solitons are obtained. It is shown that their mass spectrum agrees with the large $N$ limit of the spectrum of the chiral Gross--Neveu model.
[ { "created": "Wed, 18 Jan 1995 18:08:43 GMT", "version": "v1" } ]
2015-06-26
[ [ "Henderson", "R. J.", "" ], [ "Rajeev", "S. G.", "" ] ]
We obtain a bilocal classical field theory as the large $N$ limit of the chiral Gross--Neveu (or non--abelian Thirring) model. Exact classical solutions that describe topological solitons are obtained. It is shown that their mass spectrum agrees with the large $N$ limit of the spectrum of the chiral Gross--Neveu model.
6.224426
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5.08921
5.152844
5.194313
5.201199
4.943989
5.181077
5.748896
5.452807
5.530055
5.758403
5.269392
5.274096
5.298484
5.108457
5.395268
5.355813
5.57472
5.406038
hep-th/9303106
Andrei Linde
Renata Kallosh
Axion-Dilaton Black Holes
8 pages, LATEX, (Talk presented at the TEXAS/PASCOS conference, Berkeley, December 1992)
null
10.1111/j.1749-6632.1993.tb43918.x
null
hep-th
null
In this talk some essential features of stringy black holes are described. We consider charged four-dimensional axion-dilaton black holes. The Hawking temperature and the entropy of all solutions are shown to be simple functions of the squares of supercharges, defining the positivity bounds. Spherically symmetric and multi black hole solutions are presented. The extreme solutions have some unbroken supersymmetries. Axion-dilaton black holes with zero entropy and zero area of the horizon form a family of stable particle-like objects, which we call holons. We discuss the possibility of splitting of nearly extreme black holes into holons.
[ { "created": "Fri, 19 Mar 1993 04:31:37 GMT", "version": "v1" } ]
2009-10-22
[ [ "Kallosh", "Renata", "" ] ]
In this talk some essential features of stringy black holes are described. We consider charged four-dimensional axion-dilaton black holes. The Hawking temperature and the entropy of all solutions are shown to be simple functions of the squares of supercharges, defining the positivity bounds. Spherically symmetric and multi black hole solutions are presented. The extreme solutions have some unbroken supersymmetries. Axion-dilaton black holes with zero entropy and zero area of the horizon form a family of stable particle-like objects, which we call holons. We discuss the possibility of splitting of nearly extreme black holes into holons.
12.919518
10.776383
12.441153
10.896583
11.582441
11.941917
12.183414
11.734588
11.984138
13.816286
10.742597
11.185886
11.828354
11.301649
11.057505
11.310884
11.145026
11.45848
11.272632
11.979065
11.235208
0805.1009
Fabio Ferrari Ruffino
Fabio Ferrari Ruffino and Raffaele Savelli
Comparing two approaches to the K-theory classification of D-branes
34 pages, no figures
J.Geom.Phys. 61:191-212,2011
10.1016/j.geomphys.2010.10.001
null
hep-th math-ph math.KT math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the two main classification methods of D-brane charges via K-theory, in type II superstring theory with vanishing B-field: the Gysin map approach and the one based on the Atiyah-Hirzebruch spectral sequence. Then, we find out an explicit link between these two approaches: the Gysin map provides a representative element of the equivalence class obtained via the spectral sequence. We also briefly discuss the case of rational coefficients, characterized by a complete equivalence between the two classification methods.
[ { "created": "Wed, 7 May 2008 16:06:47 GMT", "version": "v1" }, { "created": "Sat, 10 May 2008 16:19:38 GMT", "version": "v2" }, { "created": "Tue, 23 Feb 2010 23:58:05 GMT", "version": "v3" }, { "created": "Thu, 21 Oct 2010 19:50:32 GMT", "version": "v4" } ]
2014-11-18
[ [ "Ruffino", "Fabio Ferrari", "" ], [ "Savelli", "Raffaele", "" ] ]
We consider the two main classification methods of D-brane charges via K-theory, in type II superstring theory with vanishing B-field: the Gysin map approach and the one based on the Atiyah-Hirzebruch spectral sequence. Then, we find out an explicit link between these two approaches: the Gysin map provides a representative element of the equivalence class obtained via the spectral sequence. We also briefly discuss the case of rational coefficients, characterized by a complete equivalence between the two classification methods.
9.80785
8.786585
11.12628
8.658237
10.035083
9.071199
9.076507
8.382637
8.63834
11.581857
8.950172
8.790721
9.783094
8.749915
9.157394
8.810188
9.000717
8.712851
8.874183
9.418403
8.98305
2007.09092
Paul K. Townsend
Igor Bandos, Kurt Lechner, Dmitri Sorokin, Paul K. Townsend
A non-linear duality-invariant conformal extension of Maxwell's equations
5 pages. v2 includes many simplifications and additional references, and additional material on birefringence
Phys. Rev. D 102, 121703 (2020)
10.1103/PhysRevD.102.121703
null
hep-th hep-ph physics.class-ph physics.optics
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
All nonlinear extensions of the source-free Maxwell equations preserving both SO(2) electromagnetic duality invariance and conformal invariance are found, and shown to be limits of a one-parameter generalisation of Born-Infeld electrodynamics. The strong-field limit is the same as that found by Bialynicki-Birula from Born-Infeld theory but the weak-field limit is a new one-parameter extension of Maxwell electrodynamics, which is interacting but admits exact light-velocity plane-wave solutions of arbitrary polarisation. Small-amplitude waves on a constant uniform electromagnetic background exhibit birefringence, but one polarisation mode remains lightlike.
[ { "created": "Fri, 17 Jul 2020 16:16:55 GMT", "version": "v1" }, { "created": "Fri, 20 Nov 2020 18:05:27 GMT", "version": "v2" } ]
2021-01-04
[ [ "Bandos", "Igor", "" ], [ "Lechner", "Kurt", "" ], [ "Sorokin", "Dmitri", "" ], [ "Townsend", "Paul K.", "" ] ]
All nonlinear extensions of the source-free Maxwell equations preserving both SO(2) electromagnetic duality invariance and conformal invariance are found, and shown to be limits of a one-parameter generalisation of Born-Infeld electrodynamics. The strong-field limit is the same as that found by Bialynicki-Birula from Born-Infeld theory but the weak-field limit is a new one-parameter extension of Maxwell electrodynamics, which is interacting but admits exact light-velocity plane-wave solutions of arbitrary polarisation. Small-amplitude waves on a constant uniform electromagnetic background exhibit birefringence, but one polarisation mode remains lightlike.
9.077364
8.85952
8.649083
8.518242
8.66781
8.004917
8.197728
8.146494
8.295121
9.387404
7.747325
8.270929
8.000679
7.911553
8.070501
8.09055
8.687515
8.122994
8.013702
8.443516
8.237824
1003.0523
Antonio Amariti
Antonio Amariti, Luciano Girardello, Alberto Mariotti, Massimo Siani
Metastable Vacua in Superconformal SQCD-like Theories
17 pages, 7 figures, JHEP3.cls
JHEP 1102:092,2011
10.1007/JHEP02(2011)092
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study dynamical supersymmetry breaking in vector-like superconformal N=1 gauge theories. We find appropriate deformations of the superpotential to overcome the problem of the instability of the non supersymmetric vacuum. The request for long lifetime translates into constraints on the physical couplings which in this regime can be controlled through efficient RG analysis.
[ { "created": "Tue, 2 Mar 2010 20:17:24 GMT", "version": "v1" } ]
2011-03-18
[ [ "Amariti", "Antonio", "" ], [ "Girardello", "Luciano", "" ], [ "Mariotti", "Alberto", "" ], [ "Siani", "Massimo", "" ] ]
We study dynamical supersymmetry breaking in vector-like superconformal N=1 gauge theories. We find appropriate deformations of the superpotential to overcome the problem of the instability of the non supersymmetric vacuum. The request for long lifetime translates into constraints on the physical couplings which in this regime can be controlled through efficient RG analysis.
19.059103
18.396378
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17.390863
19.172358
19.164642
16.689209
19.06978
18.343523
18.67635
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17.495203
18.423704
17.790808
17.944756
17.271906
17.315699
17.509529
17.359991
19.076565
17.838699
1503.08130
Ashoke Sen
Ashoke Sen
Riding Gravity Away from Doomsday
LaTeX file, 8 pages, prepared for 2015 essay competition of gravity research foundation
null
10.1142/S0218271815440046
null
hep-th astro-ph.CO gr-qc hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The discovery that most of the energy density in the universe is stored in the form of dark energy has profound consequences for our future. In particular our current limited understanding of quantum theory of gravity indicates that some time in the future our universe will undergo a phase transition that will destroy us and everything else around us instantaneously. However the laws of gravity also suggest a way out -- some of our descendants could survive this catastrophe by riding gravity away from the danger. In this essay I describe the tale of this escape from doomsday.
[ { "created": "Fri, 27 Mar 2015 16:25:26 GMT", "version": "v1" } ]
2015-12-09
[ [ "Sen", "Ashoke", "" ] ]
The discovery that most of the energy density in the universe is stored in the form of dark energy has profound consequences for our future. In particular our current limited understanding of quantum theory of gravity indicates that some time in the future our universe will undergo a phase transition that will destroy us and everything else around us instantaneously. However the laws of gravity also suggest a way out -- some of our descendants could survive this catastrophe by riding gravity away from the danger. In this essay I describe the tale of this escape from doomsday.
13.324877
11.582718
12.895228
11.369683
12.738889
14.878406
12.900686
13.056714
12.160519
13.7154
12.390607
11.602582
11.170074
11.489201
11.65513
12.330662
11.530293
11.680754
11.893817
11.803068
12.021411
1204.1193
Fulvio Sbis\`a
Fulvio Sbis\`a, Gustavo Niz, Kazuya Koyama and Gianmassimo Tasinato
Characterising Vainshtein Solutions in Massive Gravity
21 pages, 7 figures, published version
Phys. Rev. D86, 024033 (2012)
10.1103/PhysRevD.86.024033
null
hep-th astro-ph.CO gr-qc hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study static, spherically symmetric solutions in a recently proposed ghost-free model of non-linear massive gravity. We focus on a branch of solutions where the helicity-0 mode can be strongly coupled within certain radial regions, giving rise to the Vainshtein effect. We truncate the analysis to scales below the gravitational Compton wavelength, and consider the weak field limit for the gravitational potentials, while keeping all non-linearities of the helicity-0 mode. We determine analytically the number and properties of local solutions which exist asymptotically on large scales, and of local (inner) solutions which exist on small scales. We find two kinds of asymptotic solutions, one of which is asymptotically flat, while the other one is not, and also two types of inner solutions, one of which displays the Vainshtein mechanism, while the other exhibits a self-shielding behaviour of the gravitational field. We analyse in detail in which cases the solutions match in an intermediate region. The asymptotically flat solutions connect only to inner configurations displaying the Vainshtein mechanism, while the non asymptotically flat solutions can connect with both kinds of inner solutions. We show furthermore that there are some regions in the parameter space where global solutions do not exist, and characterise precisely in which regions of the phase space the Vainshtein mechanism takes place.
[ { "created": "Thu, 5 Apr 2012 12:12:12 GMT", "version": "v1" }, { "created": "Wed, 11 Apr 2012 17:24:50 GMT", "version": "v2" }, { "created": "Tue, 17 Jun 2014 12:42:02 GMT", "version": "v3" } ]
2018-05-18
[ [ "Sbisà", "Fulvio", "" ], [ "Niz", "Gustavo", "" ], [ "Koyama", "Kazuya", "" ], [ "Tasinato", "Gianmassimo", "" ] ]
We study static, spherically symmetric solutions in a recently proposed ghost-free model of non-linear massive gravity. We focus on a branch of solutions where the helicity-0 mode can be strongly coupled within certain radial regions, giving rise to the Vainshtein effect. We truncate the analysis to scales below the gravitational Compton wavelength, and consider the weak field limit for the gravitational potentials, while keeping all non-linearities of the helicity-0 mode. We determine analytically the number and properties of local solutions which exist asymptotically on large scales, and of local (inner) solutions which exist on small scales. We find two kinds of asymptotic solutions, one of which is asymptotically flat, while the other one is not, and also two types of inner solutions, one of which displays the Vainshtein mechanism, while the other exhibits a self-shielding behaviour of the gravitational field. We analyse in detail in which cases the solutions match in an intermediate region. The asymptotically flat solutions connect only to inner configurations displaying the Vainshtein mechanism, while the non asymptotically flat solutions can connect with both kinds of inner solutions. We show furthermore that there are some regions in the parameter space where global solutions do not exist, and characterise precisely in which regions of the phase space the Vainshtein mechanism takes place.
6.331166
6.426267
6.32794
6.044837
6.387162
6.527703
6.863644
6.191669
6.305945
6.486217
6.305433
6.167236
6.385058
6.231979
6.30393
6.273451
6.300667
6.315026
6.26065
6.324691
6.205648
0808.2310
Kallosh Renata
Renata Kallosh
On a possibility of a UV finite N=8 supergravity
17 pages
null
null
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Lorentz covariant all-loop counterterms built in the 4+32 on shell superspace of N=8 supergravity imply that the theory is not UV finite. Meanwhile, the relevant counterterms depending on the light-cone superfields in 4+16 superspace have not been constructed so far. Our first attempt to construct them suggests that they may be incompatible with the covariant ones. This would lead to a prediction of all-loop UV finiteness of the perturbative S-matrix. Here we rely on the validity of the equivalence theorem for the S-matrix in the light-cone gauge and Lorentz covariant gauges, which requires the absence of BRST anomalies. We discuss the status of N=8 SU(8) and E7 anomalies. It remains an outstanding problem to construct the light-cone counterterms or to confirm our current conclusion.
[ { "created": "Mon, 18 Aug 2008 15:11:26 GMT", "version": "v1" }, { "created": "Sat, 15 Nov 2008 22:58:55 GMT", "version": "v2" } ]
2008-11-16
[ [ "Kallosh", "Renata", "" ] ]
The Lorentz covariant all-loop counterterms built in the 4+32 on shell superspace of N=8 supergravity imply that the theory is not UV finite. Meanwhile, the relevant counterterms depending on the light-cone superfields in 4+16 superspace have not been constructed so far. Our first attempt to construct them suggests that they may be incompatible with the covariant ones. This would lead to a prediction of all-loop UV finiteness of the perturbative S-matrix. Here we rely on the validity of the equivalence theorem for the S-matrix in the light-cone gauge and Lorentz covariant gauges, which requires the absence of BRST anomalies. We discuss the status of N=8 SU(8) and E7 anomalies. It remains an outstanding problem to construct the light-cone counterterms or to confirm our current conclusion.
12.559391
11.618427
13.501958
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10.298067
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11.686255
11.583303
11.300264
11.29068
10.901694
11.754678
10.935098
11.581848
11.146972
hep-th/0002108
Oleg Shvedov
O.Yu.Shvedov
Time Evolution in the External Field: the Unitarity Paradox
25 pages, LaTex2e, 1 figure
AnnalsPhys.287:260-290,2001
10.1006/aphy.2000.6101
null
hep-th
null
One of the axioms of quantum field theory is the property of unitarity of the evolution operator. However, if one considers the quantum electrodynamics in the external field in the leading order of perturbation theory, one will find that the evolution transformation is a non-unitary canonical transformation of creation and annihilation operators. This observation was one of the arguments for the hypothesis that one should choose different representations of the canonical commutation relations at different moments of time in the exact quantum field theory. In this paper the contradiction is analyzed for the case of a simple quantum mechanical model being an analog of the leading order of the large-N field theory. On the one hand, this model is renormalized with the help of the constructive field theory methods; the Hilbert space and unitary evolution operator are constructed. On the other hand, the leading order of the evolution transformation in the strong external field is shown to be non-unitary. Thus, unitarity of evolution in the exact theory is not in contradiction with non-unitarity of the approximate theory.
[ { "created": "Mon, 14 Feb 2000 10:48:01 GMT", "version": "v1" } ]
2008-11-26
[ [ "Shvedov", "O. Yu.", "" ] ]
One of the axioms of quantum field theory is the property of unitarity of the evolution operator. However, if one considers the quantum electrodynamics in the external field in the leading order of perturbation theory, one will find that the evolution transformation is a non-unitary canonical transformation of creation and annihilation operators. This observation was one of the arguments for the hypothesis that one should choose different representations of the canonical commutation relations at different moments of time in the exact quantum field theory. In this paper the contradiction is analyzed for the case of a simple quantum mechanical model being an analog of the leading order of the large-N field theory. On the one hand, this model is renormalized with the help of the constructive field theory methods; the Hilbert space and unitary evolution operator are constructed. On the other hand, the leading order of the evolution transformation in the strong external field is shown to be non-unitary. Thus, unitarity of evolution in the exact theory is not in contradiction with non-unitarity of the approximate theory.
6.910848
6.748589
7.103495
6.838395
6.683533
7.046244
6.752458
6.92433
7.007571
7.644875
6.720786
6.956706
6.915136
6.737999
6.499029
6.69502
6.848082
6.835481
6.731225
6.991178
6.589332
2110.08301
Giuseppe Dibitetto
Giuseppe Dibitetto
Positive energy and non-SUSY flows in ISO(7) gauged supergravity
Minor changes, refs added, published version; 18 pages, 6 figures
Universe 2022, 8(5), 293
10.3390/universe8050293
null
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider maximal gauged supergravity in 4D with ISO(7) gauge group, which arises from a consistent truncation of massive IIA supergravity on a six-sphere. Within its G$_2$ invariant sector, the theory is known to possess a supersymmetric AdS extremum as well as two non-supersymmetric ones. In this context we provide a first order formulation of the theory by making use of the Hamilton-Jacobi (HJ) formalism. This allows us to derive a positive energy theorem for both non-supersymmetric extrema. Subsequently, we also find novel non-supersymmetric domain walls (DW) interpolating between the supersymmetric extremum and each of the other two. Finally, we discuss a perturbative HJ technique that may be used in order to solve for curved DW geometries.
[ { "created": "Fri, 15 Oct 2021 18:20:13 GMT", "version": "v1" }, { "created": "Sat, 28 May 2022 08:13:23 GMT", "version": "v2" } ]
2022-07-19
[ [ "Dibitetto", "Giuseppe", "" ] ]
We consider maximal gauged supergravity in 4D with ISO(7) gauge group, which arises from a consistent truncation of massive IIA supergravity on a six-sphere. Within its G$_2$ invariant sector, the theory is known to possess a supersymmetric AdS extremum as well as two non-supersymmetric ones. In this context we provide a first order formulation of the theory by making use of the Hamilton-Jacobi (HJ) formalism. This allows us to derive a positive energy theorem for both non-supersymmetric extrema. Subsequently, we also find novel non-supersymmetric domain walls (DW) interpolating between the supersymmetric extremum and each of the other two. Finally, we discuss a perturbative HJ technique that may be used in order to solve for curved DW geometries.
6.696194
6.651333
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6.899481
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6.258747
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6.647444
6.162706
6.282072
6.448698
6.331776
6.259736
6.109817
6.437846
6.268364
2403.06787
Yizhuang Liu
Yizhuang Liu
Bjorken and threshold asymptotics of a space-like structure function in the 2D $U(N)$ Gross-Neveu model
This work has 42 pages. Restructured and improved presentation. A new section on the relationship between momentum space and coordinate space expansions added
null
null
null
hep-th hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we investigate a coordinate space structure function ${\cal E}(z^2m^2,\lambda)$ in the 2D $U(N)$ Gross-Neveu model to the next-to-leading order in the large-$N$ expansion. We analytically perform the twist expansion in the Bjorken limit through double Mellin representations. Hard and non-perturbative scaling functions are naturally generated in their Borel representations with detailed enumerations and explicit expressions provided to all powers. The renormalon cancellation at $t=n$ between the hard functions at powers $p$ and the non-perturbative functions at powers $p+n$ are explicitly verified, and the issue of ``scale-dependency'' of the perturbative and non-perturbative functions is explained naturally. Simple expressions for the leading power non-perturbative functions are also provided both in the coordinate space and the momentum-fraction space ($0<\alpha<1$) with ``zero-mode-type'' subtractions at $\alpha=0$ discussed in detail. In addition to the Bjorken limit, we also perform the threshold expansion of the structure function up to the next-to-next-to-leading threshold power exactly and investigate the resurgence relation between threshold and ``Regge'' asymptotics. We also prove that the twist expansion is absolutely convergent for any $0<z^2<\infty$ and any $ \lambda \in iR_{\ge 0}$.
[ { "created": "Mon, 11 Mar 2024 15:03:33 GMT", "version": "v1" }, { "created": "Tue, 19 Mar 2024 17:45:59 GMT", "version": "v2" }, { "created": "Tue, 26 Mar 2024 17:50:34 GMT", "version": "v3" }, { "created": "Mon, 1 Apr 2024 13:50:37 GMT", "version": "v4" } ]
2024-04-02
[ [ "Liu", "Yizhuang", "" ] ]
In this work, we investigate a coordinate space structure function ${\cal E}(z^2m^2,\lambda)$ in the 2D $U(N)$ Gross-Neveu model to the next-to-leading order in the large-$N$ expansion. We analytically perform the twist expansion in the Bjorken limit through double Mellin representations. Hard and non-perturbative scaling functions are naturally generated in their Borel representations with detailed enumerations and explicit expressions provided to all powers. The renormalon cancellation at $t=n$ between the hard functions at powers $p$ and the non-perturbative functions at powers $p+n$ are explicitly verified, and the issue of ``scale-dependency'' of the perturbative and non-perturbative functions is explained naturally. Simple expressions for the leading power non-perturbative functions are also provided both in the coordinate space and the momentum-fraction space ($0<\alpha<1$) with ``zero-mode-type'' subtractions at $\alpha=0$ discussed in detail. In addition to the Bjorken limit, we also perform the threshold expansion of the structure function up to the next-to-next-to-leading threshold power exactly and investigate the resurgence relation between threshold and ``Regge'' asymptotics. We also prove that the twist expansion is absolutely convergent for any $0<z^2<\infty$ and any $ \lambda \in iR_{\ge 0}$.
10.624136
11.654144
10.203385
10.168546
11.381674
12.465674
11.454787
11.242171
10.13737
11.868651
10.120188
10.334035
10.164493
10.019998
10.358288
10.265892
10.346061
10.462033
9.892988
10.378078
9.992518
hep-th/9807007
Jose Manuel Izquierdo
J. M. Izquierdo
Free differential algebras and generic 2D dilatonic (super)gravities
19 pages, LateX
Phys.Rev. D59 (1999) 084017
10.1103/PhysRevD.59.084017
null
hep-th gr-qc
null
The field equations for both generic bosonic and generic locally supersymmetric 2D dilatonic gravity theories in the absence of matter are written as free differential algebras. This constitutes a generalization of the gauge theoretic formulation. Moreover, it is shown that the condition of free differential algebra can be used to obtain the equations in the locally supersymmetric case. Using this formulation, the general solution of the field equations is found in the language of differential forms. The relation with the ordinary formulation and the coupling to supersymmetric conformal matter are also studied.
[ { "created": "Wed, 1 Jul 1998 15:52:54 GMT", "version": "v1" } ]
2009-10-31
[ [ "Izquierdo", "J. M.", "" ] ]
The field equations for both generic bosonic and generic locally supersymmetric 2D dilatonic gravity theories in the absence of matter are written as free differential algebras. This constitutes a generalization of the gauge theoretic formulation. Moreover, it is shown that the condition of free differential algebra can be used to obtain the equations in the locally supersymmetric case. Using this formulation, the general solution of the field equations is found in the language of differential forms. The relation with the ordinary formulation and the coupling to supersymmetric conformal matter are also studied.
10.285273
9.40348
10.053886
9.413805
9.630379
10.202974
9.973906
9.561533
9.042005
10.349736
8.630953
9.262269
9.541978
9.572384
9.382368
9.338732
9.37431
9.371271
9.581759
10.266075
9.171601
hep-th/9306119
Sonoda
Hidenori Sonoda
Connection on the theory space
4 pages (plain TeX), UCLA/93/TEP/21
null
null
null
hep-th
null
By studying the geometric properties of correlation functions on the theory space, we are naturally led to a connection for the infinite dimensional vector bundle of composite fields over the theory space. We show how the short distance singularities of the theory are determined by the geometry of the theory space, i.e., the connection, beta functions, and anomalous dimensions. (This is a summary of the talk given at Strings '93 in Berkeley. The unnecessary blank lines in the original version have been removed in this revised version.)
[ { "created": "Tue, 22 Jun 1993 20:45:33 GMT", "version": "v1" }, { "created": "Wed, 23 Jun 1993 21:16:05 GMT", "version": "v2" } ]
2008-02-03
[ [ "Sonoda", "Hidenori", "" ] ]
By studying the geometric properties of correlation functions on the theory space, we are naturally led to a connection for the infinite dimensional vector bundle of composite fields over the theory space. We show how the short distance singularities of the theory are determined by the geometry of the theory space, i.e., the connection, beta functions, and anomalous dimensions. (This is a summary of the talk given at Strings '93 in Berkeley. The unnecessary blank lines in the original version have been removed in this revised version.)
13.9546
10.607445
12.102497
11.471964
11.110332
9.98208
10.100201
9.931356
10.085637
12.024759
11.031806
11.355453
11.735485
11.105486
11.49755
11.278254
11.404763
10.654716
10.37048
11.882697
11.536106
1607.05866
Fen Zuo
Fen Zuo
A note on the architecture of spacetime geometry
An intuitive comparison with the recent Witten-Costello construction for the integrable lattice models is made; a few improper statements and misleading notations are corrected
null
null
null
hep-th gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently the $\text{SU}(2)$ spin-network states in loop quantum gravity is generalized to those of the corresponding affine Lie algebra. We show that if one literally starts from the full $\text{SL}(2,\mathbb{C})$ group, this procedure naturally leads to the Bekenstein-Hawking formula of the entanglement entropy for any macroscopic spacetime region. This suggests that a smooth spacetime geometry could be recovered in such a way, as conjectured by Bianchi and Myers. Some comparison with Xiao-Gang Wen's string-net picture of gauge theory is made.
[ { "created": "Wed, 20 Jul 2016 08:57:52 GMT", "version": "v1" }, { "created": "Tue, 23 May 2017 12:27:16 GMT", "version": "v2" } ]
2017-05-24
[ [ "Zuo", "Fen", "" ] ]
Recently the $\text{SU}(2)$ spin-network states in loop quantum gravity is generalized to those of the corresponding affine Lie algebra. We show that if one literally starts from the full $\text{SL}(2,\mathbb{C})$ group, this procedure naturally leads to the Bekenstein-Hawking formula of the entanglement entropy for any macroscopic spacetime region. This suggests that a smooth spacetime geometry could be recovered in such a way, as conjectured by Bianchi and Myers. Some comparison with Xiao-Gang Wen's string-net picture of gauge theory is made.
12.854753
12.263318
11.734403
12.142776
13.216751
13.824248
13.460322
12.25841
12.673651
13.651503
13.225762
11.369507
11.786659
11.240982
11.407921
11.391039
11.484586
11.275546
11.51721
11.697419
11.293407
hep-th/0305257
Alberto Guijosa
Xavier Amador, Elena Caceres, Hugo Garcia-Compean (CINVESTAV), Alberto Guijosa (ICN-UNAM)
Conifold Holography
LaTeX 2e, 32 pages
JHEP 0306:049,2003
10.1088/1126-6708/2003/06/049
CINVESTAV-FIS-03/08, ICN-UNAM-03/06
hep-th
null
We examine the extension of the Klebanov-Witten gauge/gravity correspondence away from the low-energy conformal limit, to a duality involving the full, asymptotically Ricci-flat background describing three-branes on the conifold. After a discussion of the nature of this duality at the string theory level (prior to taking any limits), we concentrate on the intermediate-energy regime where excited string modes are negligible but the branes are still coupled to the bulk. Building upon previous work, we are able to characterize the effective D3-brane worldvolume action in this regime as an IR deformation of the Klebanov-Witten N=1 superconformal gauge theory by a specific dimension-eight operator. In addition, we compute the two-point functions of the operators dual to all partial waves of the dilaton on the conifold-three-brane background, and subject them to various checks.
[ { "created": "Thu, 29 May 2003 20:55:28 GMT", "version": "v1" }, { "created": "Mon, 9 Jun 2003 19:16:21 GMT", "version": "v2" } ]
2014-11-18
[ [ "Amador", "Xavier", "", "CINVESTAV" ], [ "Caceres", "Elena", "", "CINVESTAV" ], [ "Garcia-Compean", "Hugo", "", "CINVESTAV" ], [ "Guijosa", "Alberto", "", "ICN-UNAM" ] ]
We examine the extension of the Klebanov-Witten gauge/gravity correspondence away from the low-energy conformal limit, to a duality involving the full, asymptotically Ricci-flat background describing three-branes on the conifold. After a discussion of the nature of this duality at the string theory level (prior to taking any limits), we concentrate on the intermediate-energy regime where excited string modes are negligible but the branes are still coupled to the bulk. Building upon previous work, we are able to characterize the effective D3-brane worldvolume action in this regime as an IR deformation of the Klebanov-Witten N=1 superconformal gauge theory by a specific dimension-eight operator. In addition, we compute the two-point functions of the operators dual to all partial waves of the dilaton on the conifold-three-brane background, and subject them to various checks.
10.116345
9.139189
11.509396
9.644044
9.601316
9.162151
9.618078
9.582973
9.441121
11.523219
9.307091
9.371905
10.216563
9.410619
9.549256
9.439568
9.664114
9.248429
9.49957
9.914071
9.215007
hep-th/9506087
Shin Hyun Jong
Q-Han Park and H.J. Shin (Kyung Hee Univ.)
Duality in Complex sine-Gordon Theory
10 pages, LaTex
Phys.Lett. B359 (1995) 125-132
10.1016/0370-2693(95)01032-L
SNUCTP 95-66
hep-th
null
New aspects of the complex sine-Gordon theory are addressed through the reformulation of the theory in terms of the gauged Wess-Zumino-Witten action. A dual transformation between the theory for the coupling constant $\b > 0$ and the theory for $\b < 0$ is given which agrees with the Krammers-Wannier duality in the context of perturbed conformal field theory. The B\"{a}cklund transform and the nonlinear superposition rule for the complex sine-Gordon theory are presented and from which, exact solutions, solitons and breathers with U(1) charge, are derived. We clarify topological and nontopological nature of neutral and charged solitons respectively, and discuss about the duality between the vector and the axial U(1) charges.
[ { "created": "Tue, 13 Jun 1995 09:02:16 GMT", "version": "v1" } ]
2015-06-26
[ [ "Park", "Q-Han", "", "Kyung Hee Univ." ], [ "Shin", "H. J.", "", "Kyung Hee Univ." ] ]
New aspects of the complex sine-Gordon theory are addressed through the reformulation of the theory in terms of the gauged Wess-Zumino-Witten action. A dual transformation between the theory for the coupling constant $\b > 0$ and the theory for $\b < 0$ is given which agrees with the Krammers-Wannier duality in the context of perturbed conformal field theory. The B\"{a}cklund transform and the nonlinear superposition rule for the complex sine-Gordon theory are presented and from which, exact solutions, solitons and breathers with U(1) charge, are derived. We clarify topological and nontopological nature of neutral and charged solitons respectively, and discuss about the duality between the vector and the axial U(1) charges.
7.819683
6.937612
7.966701
7.096838
6.902006
7.179749
6.675475
6.522704
6.878709
8.416543
6.927178
6.873368
7.329092
7.336962
7.26168
7.257189
7.115149
7.12772
7.097652
7.239275
6.923345
hep-th/0401113
Hartmut Wachter
Hartmut Wachter
q-Exponentials on quantum spaces
34 pages, Latex, more detailed introduction, 2-dim. case included, major modifications to improve clarity, appendix with proofs, notations etc. added, references added, typos corrected, some parts of appendices skipped
Eur.Phys.J.C37:379-389,2004
10.1140/epjc/s2004-01999-5
null
hep-th
null
We present explicit formulae for q-exponentials on quantum spaces which could be of particular importance in physics, i.e. the q-deformed Minkowski-space and the q-deformed Euclidean space with two, three or four dimensions. Furthermore, these formulae can be viewed as 2-, 3- or 4-dimensional analogues of the well-known q-exponential function.
[ { "created": "Fri, 16 Jan 2004 18:29:41 GMT", "version": "v1" }, { "created": "Wed, 19 May 2004 12:55:07 GMT", "version": "v2" }, { "created": "Mon, 4 Oct 2004 09:46:40 GMT", "version": "v3" } ]
2011-09-13
[ [ "Wachter", "Hartmut", "" ] ]
We present explicit formulae for q-exponentials on quantum spaces which could be of particular importance in physics, i.e. the q-deformed Minkowski-space and the q-deformed Euclidean space with two, three or four dimensions. Furthermore, these formulae can be viewed as 2-, 3- or 4-dimensional analogues of the well-known q-exponential function.
7.481789
6.469999
7.773698
7.02369
7.255737
6.875252
6.369689
6.665172
6.681593
9.108978
7.36985
7.063494
8.012956
7.131197
7.241659
7.158726
6.669727
7.009102
7.329069
7.674276
7.325958
hep-th/0303195
Roman V. Buniy
Roman V. Buniy and Thomas W. Kephart
On the existence of finite-energy lumps in classic field theories
4 pages, 1 figure; substantial changes
Phys.Rev. D68 (2003) 105015
10.1103/PhysRevD.68.105015
null
hep-th
null
We show how the existence of non-trivial finite-energy time-dependent classical lumps is restricted by a generalized virial theorem. For simple model Lagrangians, bounds on energies follow.
[ { "created": "Sat, 22 Mar 2003 00:00:51 GMT", "version": "v1" }, { "created": "Fri, 23 May 2003 04:55:26 GMT", "version": "v2" } ]
2009-11-10
[ [ "Buniy", "Roman V.", "" ], [ "Kephart", "Thomas W.", "" ] ]
We show how the existence of non-trivial finite-energy time-dependent classical lumps is restricted by a generalized virial theorem. For simple model Lagrangians, bounds on energies follow.
24.925552
21.043831
19.933027
18.551159
18.530533
19.564917
18.435537
19.595058
16.091053
21.954834
18.03348
20.070368
22.153877
20.505064
20.762585
20.180136
20.638407
20.990206
20.3027
22.836895
20.176601
2008.07156
Yoji Michishita
Yoji Michishita
On First Order Symmetry Operators for the Field Equations of Differential Forms
33 pages
null
10.1088/1361-6382/abbf2f
null
hep-th gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider first order symmetry operators for the equations of motion of differential $p$-form fields in general $D$-dimensional background geometry of any signature for both massless and massive cases. For $p=1$ and $p=2$ we give the general forms of the symmetry operators. Then we find a class of symmetry operators for arbitrary $p$ and $D$, which is naturally suggested by the lower $p$ results.
[ { "created": "Mon, 17 Aug 2020 08:46:49 GMT", "version": "v1" } ]
2021-02-03
[ [ "Michishita", "Yoji", "" ] ]
We consider first order symmetry operators for the equations of motion of differential $p$-form fields in general $D$-dimensional background geometry of any signature for both massless and massive cases. For $p=1$ and $p=2$ we give the general forms of the symmetry operators. Then we find a class of symmetry operators for arbitrary $p$ and $D$, which is naturally suggested by the lower $p$ results.
7.638911
6.698781
6.606308
6.568921
6.351747
6.117139
6.431224
6.070608
7.069458
6.842302
6.432348
6.487562
7.195736
6.759458
6.797815
6.793279
6.674762
6.676551
6.632764
6.98495
6.547584
1202.5271
Darren Smyth Mr.
Moshe Rozali, Darren Smyth and Evgeny Sorkin
Holographic Higgs Phases
Corrected typos
null
10.1007/JHEP08(2012)118
null
hep-th gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss phases of gauge theories in the holographic context, and formulate a criterion for the existence of a Higgs phase, where the gauge redundancy is "spontaneously broken", in purely bulk language. This condition, the existence of a finite tension solitonic string representing a narrow magnetic flux tube, is necessary for a bulk theory to be interpreted as a Higgs phase of a boundary gauge theory. We demonstrate the existence of such solitons in both top-down and bottom-up examples of holographic theories. In particular, we numerically construct new solitonic solutions in AdS black hole background, for various values of the boundary gauge coupling, which are used to demonstrate that the bulk theory models a superconductor, rather than a superfluid. The criterion we find is expected to be useful in finding holographic duals of color superconducting phases of gauge theories at finite density.
[ { "created": "Thu, 23 Feb 2012 19:43:15 GMT", "version": "v1" }, { "created": "Mon, 11 Jun 2012 22:11:54 GMT", "version": "v2" }, { "created": "Fri, 11 Dec 2015 22:14:10 GMT", "version": "v3" } ]
2015-12-15
[ [ "Rozali", "Moshe", "" ], [ "Smyth", "Darren", "" ], [ "Sorkin", "Evgeny", "" ] ]
We discuss phases of gauge theories in the holographic context, and formulate a criterion for the existence of a Higgs phase, where the gauge redundancy is "spontaneously broken", in purely bulk language. This condition, the existence of a finite tension solitonic string representing a narrow magnetic flux tube, is necessary for a bulk theory to be interpreted as a Higgs phase of a boundary gauge theory. We demonstrate the existence of such solitons in both top-down and bottom-up examples of holographic theories. In particular, we numerically construct new solitonic solutions in AdS black hole background, for various values of the boundary gauge coupling, which are used to demonstrate that the bulk theory models a superconductor, rather than a superfluid. The criterion we find is expected to be useful in finding holographic duals of color superconducting phases of gauge theories at finite density.
7.930688
8.214236
9.178243
7.455897
8.035968
7.646353
8.557031
7.402789
7.596012
9.479547
7.530017
7.698028
8.178865
7.706501
7.578395
7.58469
7.892935
7.606246
7.594766
8.061403
7.39196
2209.09999
Leonard Susskind
Leonard Susskind
De Sitter Space, Double-Scaled SYK, and the Separation of Scales in the Semiclassical Limit
52 pages, 13 figures
null
null
null
hep-th gr-qc
http://creativecommons.org/licenses/by/4.0/
In the semiclassical limit of de Sitter gravity a separation of scales takes place that divides the theory into a "cosmic" sector and a "microscopic" sector. A similar separation takes place in the double-scaled limit of SYK theory. We examine the scaling behaviors that accompany these limits and find parallels that support the previously conjectured duality between Jackiw-Teitelboim gravity (with positive cosmological constant), and double-scaled SYK. This paper is a companion to "dS JT Gravity and Double-Scaled SYK" by Adel Rahman, to appear simultaneously with this paper.
[ { "created": "Tue, 20 Sep 2022 21:08:59 GMT", "version": "v1" } ]
2022-09-22
[ [ "Susskind", "Leonard", "" ] ]
In the semiclassical limit of de Sitter gravity a separation of scales takes place that divides the theory into a "cosmic" sector and a "microscopic" sector. A similar separation takes place in the double-scaled limit of SYK theory. We examine the scaling behaviors that accompany these limits and find parallels that support the previously conjectured duality between Jackiw-Teitelboim gravity (with positive cosmological constant), and double-scaled SYK. This paper is a companion to "dS JT Gravity and Double-Scaled SYK" by Adel Rahman, to appear simultaneously with this paper.
10.497272
9.625956
11.203795
8.81586
9.713565
9.299748
9.250967
8.832158
8.876758
13.366754
9.005542
9.293183
10.266853
9.542715
9.452234
9.705795
9.37642
8.941462
9.600108
9.925095
9.653632
hep-th/0307016
Nemanja Kaloper
Nemanja Kaloper and Manoj Kaplinghat
Primeval Corrections to the CMB Anisotropies
17 pages, latex, no figures; v3: added references and comments, final version to appear in Phys. Rev. D
Phys.Rev. D68 (2003) 123522
10.1103/PhysRevD.68.123522
null
hep-th astro-ph gr-qc hep-ph
null
We show that deviations of the quantum state of the inflaton from the thermal vacuum of inflation may leave an imprint in the CMB anisotropies. The quantum dynamics of the inflaton in such a state produces corrections to the inflationary fluctuations, which may be observable. Because these effects originate from IR physics below the Planck scale, they will dominate over any trans-Planckian imprints in any theory which obeys decoupling. Inflation sweeps away these initial deviations and forces its quantum state closer to the thermal vacuum. We view this as the quantum version of the cosmic no-hair theorem. Such imprints in the CMB may be a useful, independent test of the duration of inflation, or of significant features in the inflaton potential about 60 e-folds before inflation ended, instead of an unlikely discovery of the signatures of quantum gravity. The absence of any such substructure would suggest that inflation lasted uninterrupted much longer than ${\cal O}(100)$ e-folds.
[ { "created": "Wed, 2 Jul 2003 19:15:37 GMT", "version": "v1" }, { "created": "Fri, 4 Jul 2003 22:10:39 GMT", "version": "v2" }, { "created": "Fri, 10 Oct 2003 21:28:05 GMT", "version": "v3" } ]
2009-11-10
[ [ "Kaloper", "Nemanja", "" ], [ "Kaplinghat", "Manoj", "" ] ]
We show that deviations of the quantum state of the inflaton from the thermal vacuum of inflation may leave an imprint in the CMB anisotropies. The quantum dynamics of the inflaton in such a state produces corrections to the inflationary fluctuations, which may be observable. Because these effects originate from IR physics below the Planck scale, they will dominate over any trans-Planckian imprints in any theory which obeys decoupling. Inflation sweeps away these initial deviations and forces its quantum state closer to the thermal vacuum. We view this as the quantum version of the cosmic no-hair theorem. Such imprints in the CMB may be a useful, independent test of the duration of inflation, or of significant features in the inflaton potential about 60 e-folds before inflation ended, instead of an unlikely discovery of the signatures of quantum gravity. The absence of any such substructure would suggest that inflation lasted uninterrupted much longer than ${\cal O}(100)$ e-folds.
13.212508
13.442469
13.189764
12.29187
13.383008
14.410438
14.08991
13.046431
12.645635
14.076369
12.740805
12.963564
12.337461
12.402855
12.885053
12.576445
12.70892
12.298276
12.346129
12.623449
12.499422
hep-th/0409078
Emil Nissimov
Eduardo Guendelman and Alexander Kaganovich (Ben-Gurion University, Beer-Sheva, Israel), Emil Nissimov and Svetlana Pacheva (Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria)
Weyl-Invariant Light-Like Branes and Black Hole Physics
12 pp., Based on talks delivered at the 2nd Workshop ``Gravity, Astrophysics and Strings'', Kiten (Bulgaria), the 3rd Summer School on Modern Mathematical Physics, Zlatibor (Serbia and Montenegro), 2004,and the 2nd Annual Meeting of the European RTN "EUCLID", Sozopol (Bulgaria); few signs and factors corrected
null
null
INRNE-Aug/20
hep-th gr-qc
null
We propose a new class of p-brane theories which are Weyl-conformally invariant for any p. For any odd world-volume dimension the latter describe intrinsically light-like branes, hence the name WILL-branes (Weyl-Invariant Light-Like branes). Next we discuss the dynamics of WILL-membranes (i.e., for p=2) both as test branes in various external physically relevant D=4 gravitational backgrounds, as well as within the framework of a coupled D=4 Einstein-Maxwell-WILL-membrane system. In all cases we find that the WILL-membrane materializes the event horizon of the corresponding black hole solutions, thus providing an explicit dynamical realization of the membrane paradigm in black hole physics.
[ { "created": "Tue, 7 Sep 2004 11:24:55 GMT", "version": "v1" }, { "created": "Wed, 6 Oct 2004 06:41:06 GMT", "version": "v2" }, { "created": "Fri, 13 May 2005 14:50:07 GMT", "version": "v3" }, { "created": "Thu, 28 Jul 2005 07:30:58 GMT", "version": "v4" } ]
2007-05-23
[ [ "Guendelman", "Eduardo", "", "Ben-Gurion University,\n Beer-Sheva, Israel" ], [ "Kaganovich", "Alexander", "", "Ben-Gurion University,\n Beer-Sheva, Israel" ], [ "Nissimov", "Emil", "", "Institute for\n Nuclear Research and Nuclear Energy, Sofia, Bulgaria" ], [ "Pacheva", "Svetlana", "", "Institute for\n Nuclear Research and Nuclear Energy, Sofia, Bulgaria" ] ]
We propose a new class of p-brane theories which are Weyl-conformally invariant for any p. For any odd world-volume dimension the latter describe intrinsically light-like branes, hence the name WILL-branes (Weyl-Invariant Light-Like branes). Next we discuss the dynamics of WILL-membranes (i.e., for p=2) both as test branes in various external physically relevant D=4 gravitational backgrounds, as well as within the framework of a coupled D=4 Einstein-Maxwell-WILL-membrane system. In all cases we find that the WILL-membrane materializes the event horizon of the corresponding black hole solutions, thus providing an explicit dynamical realization of the membrane paradigm in black hole physics.
8.86599
6.153279
8.656382
7.122413
7.104949
6.686898
6.759532
6.376204
6.769095
9.386118
7.450693
7.874331
8.528157
8.09966
8.140437
8.129485
8.01343
7.668309
7.878948
8.237076
8.060854
hep-th/0302121
Stanley J. Brodsky
Stanley J. Brodsky (SLAC)
Gauge Theories on the Light-Front
Invited talk presented at the XXIII Encontro Nacional de Fisica de Particulas e Campos, (The XXIII National Meeting of Particles and Fields), Aguas se Lindoila, Sao Paulo, Brazil, 15-19 October 2002
Braz.J.Phys.34:157-165,2004
10.1590/S0103-97332004000200003
SLAC-PUB-9642
hep-th
null
The light-front quantization of gauge theories in light-cone gauge provides a frame-independent wavefunction representation of relativistic bound states, simple forms for current matrix elements, explicit unitary, and a trivial vacuum. The light-front Hamiltonian form of QCD provides an alternative to lattice gauge theory for the computation of nonperturbative quantities such as the hadronic spectrum and the corresponding eigenfunctions. In the case of the electroweak theory, spontaneous symmetry breaking is represented by the appearance of zero modes of the Higgs field. Light-front quantization then leads to an elegant ghost-free theory of massive gauge particles, automatically incorporating the Lorentz and 't Hooft conditions, as well as the Goldstone boson equivalence theorem.
[ { "created": "Sun, 16 Feb 2003 22:21:01 GMT", "version": "v1" } ]
2015-06-26
[ [ "Brodsky", "Stanley J.", "", "SLAC" ] ]
The light-front quantization of gauge theories in light-cone gauge provides a frame-independent wavefunction representation of relativistic bound states, simple forms for current matrix elements, explicit unitary, and a trivial vacuum. The light-front Hamiltonian form of QCD provides an alternative to lattice gauge theory for the computation of nonperturbative quantities such as the hadronic spectrum and the corresponding eigenfunctions. In the case of the electroweak theory, spontaneous symmetry breaking is represented by the appearance of zero modes of the Higgs field. Light-front quantization then leads to an elegant ghost-free theory of massive gauge particles, automatically incorporating the Lorentz and 't Hooft conditions, as well as the Goldstone boson equivalence theorem.
7.683702
7.526327
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6.22128
4.954825
6.987092
4.800643
7.755135
5.471735
5.506807
7.065208
6.989113
6.11049
6.532141
6.659462
7.074557
6.374958
7.236034
6.306766
6.648957
6.896212
2310.12067
Zhaojie Xu
Xian-Hui Ge, Zhaojie Xu
Thermo-electric Transport of Dyonic Gubser-Rocha Black Holes
19 pages, 7 figures
null
10.1007/JHEP03(2024)069
null
hep-th cond-mat.str-el gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the thermo-electric transport coefficients of an extended version of the Gubser-Rocha model. After reviewing the two relaxation time model from holography and studying the effect of the magnetic field on thermo-electric transports from hydrodynamic theory, we present a new dilatonic dyonic asymptotically AdS black hole solution. Notice that S-duality plays an important role in finding the analytic solution with the magnetic field. Using the AdS/CMT dictionary, we analyze the electric and thermo-electric transport properties of the dual field theory. The resistivity exhibits T-linearity in the low-temperature regime. However, in the strong momentum relaxation and a strong magnetic field limit, the resistivitiy shows explicit deviation from the linear-in-T resistivity. The Hall angle is linear-in-T for both the low-temperature regime and the high-temperature regime for fixed momentum dissipation strength. The Nernst signal is a bell-shaped function in terms of the magnetic field even when the momentum relaxation is strong. Finally, we discuss the possibility of getting a semi-realistic strange metal description from our model.
[ { "created": "Wed, 18 Oct 2023 15:58:08 GMT", "version": "v1" } ]
2024-03-15
[ [ "Ge", "Xian-Hui", "" ], [ "Xu", "Zhaojie", "" ] ]
We study the thermo-electric transport coefficients of an extended version of the Gubser-Rocha model. After reviewing the two relaxation time model from holography and studying the effect of the magnetic field on thermo-electric transports from hydrodynamic theory, we present a new dilatonic dyonic asymptotically AdS black hole solution. Notice that S-duality plays an important role in finding the analytic solution with the magnetic field. Using the AdS/CMT dictionary, we analyze the electric and thermo-electric transport properties of the dual field theory. The resistivity exhibits T-linearity in the low-temperature regime. However, in the strong momentum relaxation and a strong magnetic field limit, the resistivitiy shows explicit deviation from the linear-in-T resistivity. The Hall angle is linear-in-T for both the low-temperature regime and the high-temperature regime for fixed momentum dissipation strength. The Nernst signal is a bell-shaped function in terms of the magnetic field even when the momentum relaxation is strong. Finally, we discuss the possibility of getting a semi-realistic strange metal description from our model.
10.176564
9.734694
12.405153
9.382874
9.481868
9.734367
10.205829
9.68885
9.177982
12.879359
9.155969
9.530308
10.331841
9.742645
9.608728
9.389139
9.916552
9.686009
9.806824
10.658659
9.61316
hep-th/9808153
Yuri Stroganov
G.P. Pronko (Institute for High Energy Physics, Protvino; International Solvay Institute, Brussels), Yu.G. Stroganov (Institute for High Energy Physics, Protvino)
Bethe Equations "on the Wrong Side of Equator"
13 pages, original paper was spoiled during transmission
J.Phys.A32:2333-2340,1999
10.1088/0305-4470/32/12/007
null
hep-th
null
We analyse the famous Baxter's $T-Q$ equations for $XXX$ ($XXZ$) spin chain and show that apart from its usual polynomial (trigonometric) solution, which provides the solution of Bethe-Ansatz equations, there exists also the second solution which should corresponds to Bethe-Ansatz beyond $N/2$. This second solution of Baxter's equation plays essential role and together with the first one gives rise to all fusion relations.
[ { "created": "Tue, 25 Aug 1998 11:22:26 GMT", "version": "v1" }, { "created": "Fri, 28 Aug 1998 09:03:13 GMT", "version": "v2" } ]
2008-11-26
[ [ "Pronko", "G. P.", "", "Institute for High Energy Physics, Protvino;\n International Solvay Institute, Brussels" ], [ "Stroganov", "Yu. G.", "", "Institute for\n High Energy Physics, Protvino" ] ]
We analyse the famous Baxter's $T-Q$ equations for $XXX$ ($XXZ$) spin chain and show that apart from its usual polynomial (trigonometric) solution, which provides the solution of Bethe-Ansatz equations, there exists also the second solution which should corresponds to Bethe-Ansatz beyond $N/2$. This second solution of Baxter's equation plays essential role and together with the first one gives rise to all fusion relations.
15.604466
11.955882
15.33251
12.156938
15.239606
12.748942
12.268369
12.272257
11.657956
14.995896
11.059355
11.889851
14.648601
12.570457
12.563195
11.96586
11.8858
12.564834
11.800496
13.492205
12.584345
2302.05113
Shlomo S. Razamat
Hee-Cheol Kim and Shlomo S. Razamat
Star shaped quivers in four dimensions
7 pages, 4 figures
null
10.1103/PhysRevLett.130.211601
null
hep-th
http://creativecommons.org/licenses/by/4.0/
We discuss a 4d Lagrangian descriptions, across dimensions IR dual, of compactifications of the 6d $(\text{D},\text{D})$ minimal conformal matter theory on a sphere with arbitrary number of punctures and a particular value of flux as a gauge theory with a simple gauge group. The Lagrangian has the form of a ``star shaped quiver'' with the rank of the central node depending on the 6d theory and the number and type of punctures. Using this Lagrangian one can construct across dimensions duals for arbitrary compactifications (any, genus, any number and type of $\text{USp}$ punctures, and any flux) of the $(\text{D},\text{D})$ minimal conformal matter gauging only symmetries which are manifest in the UV.
[ { "created": "Fri, 10 Feb 2023 08:27:06 GMT", "version": "v1" } ]
2023-05-31
[ [ "Kim", "Hee-Cheol", "" ], [ "Razamat", "Shlomo S.", "" ] ]
We discuss a 4d Lagrangian descriptions, across dimensions IR dual, of compactifications of the 6d $(\text{D},\text{D})$ minimal conformal matter theory on a sphere with arbitrary number of punctures and a particular value of flux as a gauge theory with a simple gauge group. The Lagrangian has the form of a ``star shaped quiver'' with the rank of the central node depending on the 6d theory and the number and type of punctures. Using this Lagrangian one can construct across dimensions duals for arbitrary compactifications (any, genus, any number and type of $\text{USp}$ punctures, and any flux) of the $(\text{D},\text{D})$ minimal conformal matter gauging only symmetries which are manifest in the UV.
9.480796
9.480037
11.20997
8.919723
9.16233
9.772835
9.759171
8.600599
9.631525
11.48069
9.137295
9.235473
10.222037
9.035887
9.649382
8.93108
8.872061
8.699368
8.629906
10.315361
9.107294
2310.11744
Sourav Roychowdhury
Jitendra Pal, Sourav Roychowdhury
Integrability and non-integrability for holographic dual of Matrix model and non-Abelian T-dual of AdS$_5\times$S$^5$
1+23 pages; 15 Figs; Major revision; v3; Accepted to Nucl. Phys. B
Nucl. Phys. B 1004 (2024) 116570
10.1016/j.nuclphysb.2024.116570
null
hep-th
http://creativecommons.org/licenses/by/4.0/
In this paper we study integrability and non-integrability for type-IIA supergravity background dual to deformed plane wave matrix model. From the bulk perspective, we estimate various chaos indicators that clearly shows chaotic string dynamics in the limit of small value of the parameter $L$ present in the theory. On the other hand, the string dynamics exhibits a non-chaotic motion for the large value of the parameter $L$ and therefore presumably an underlying integrable structure. Our findings reveals that the parameter $L$ in the type-IIA background acts as an interpolation between a non-integrable theory to an integrable theory in dual SCFTs.
[ { "created": "Wed, 18 Oct 2023 07:02:48 GMT", "version": "v1" }, { "created": "Sat, 21 Oct 2023 14:44:47 GMT", "version": "v2" }, { "created": "Mon, 20 May 2024 05:47:04 GMT", "version": "v3" } ]
2024-06-05
[ [ "Pal", "Jitendra", "" ], [ "Roychowdhury", "Sourav", "" ] ]
In this paper we study integrability and non-integrability for type-IIA supergravity background dual to deformed plane wave matrix model. From the bulk perspective, we estimate various chaos indicators that clearly shows chaotic string dynamics in the limit of small value of the parameter $L$ present in the theory. On the other hand, the string dynamics exhibits a non-chaotic motion for the large value of the parameter $L$ and therefore presumably an underlying integrable structure. Our findings reveals that the parameter $L$ in the type-IIA background acts as an interpolation between a non-integrable theory to an integrable theory in dual SCFTs.
13.145264
10.602556
12.275637
10.084745
11.342037
10.788491
10.069283
9.759686
10.195278
14.518194
10.355747
10.41121
11.706797
10.675726
10.874434
10.883045
10.929012
10.70134
10.570383
11.522396
10.832121
2110.02319
Stefan Vandoren
Jan de Boer, Jelle Hartong, Niels A. Obers, Watse Sybesma, Stefan Vandoren
Carroll symmetry, dark energy and inflation
43 pages
null
null
NORDITA 2021-086
hep-th gr-qc
http://creativecommons.org/licenses/by/4.0/
Carroll symmetry arises from Poincar\'e symmetry upon taking the limit of vanishing speed of light. We determine the constraints on the energy-momentum tensor implied by Carroll symmetry and show that for energy-momentum tensors of perfect fluid form, these imply an equation of state ${\cal E}+P=0$ for energy density plus pressure. Therefore Carroll symmetry might be relevant for dark energy and inflation. In the Carroll limit, the Hubble radius goes to zero and outside it recessional velocities are naturally large compared to the speed of light. The de Sitter group of isometries, after the limit, becomes the conformal group in Euclidean flat space. We also study the Carroll limit of chaotic inflation, and show that the scalar field is naturally driven to have an equation of state with $w=-1$. Finally we show that the freeze-out of scalar perturbations in the two point function at horizon crossing is a consequence of Carroll symmetry. To make the paper self-contained, we include a brief pedagogical review of Carroll symmetry, Carroll particles and Carroll field theories that contains some new material as well. In particular we show, using an expansion around speed of light going to zero, that for scalar and Maxwell type theories one can take two different Carroll limits at the level of the action. In the Maxwell case these correspond to the electric and magnetic limit. For point particles we show that there are two types of Carroll particles: those that cannot move in space and particles that cannot stand still.
[ { "created": "Tue, 5 Oct 2021 19:33:42 GMT", "version": "v1" } ]
2021-10-08
[ [ "de Boer", "Jan", "" ], [ "Hartong", "Jelle", "" ], [ "Obers", "Niels A.", "" ], [ "Sybesma", "Watse", "" ], [ "Vandoren", "Stefan", "" ] ]
Carroll symmetry arises from Poincar\'e symmetry upon taking the limit of vanishing speed of light. We determine the constraints on the energy-momentum tensor implied by Carroll symmetry and show that for energy-momentum tensors of perfect fluid form, these imply an equation of state ${\cal E}+P=0$ for energy density plus pressure. Therefore Carroll symmetry might be relevant for dark energy and inflation. In the Carroll limit, the Hubble radius goes to zero and outside it recessional velocities are naturally large compared to the speed of light. The de Sitter group of isometries, after the limit, becomes the conformal group in Euclidean flat space. We also study the Carroll limit of chaotic inflation, and show that the scalar field is naturally driven to have an equation of state with $w=-1$. Finally we show that the freeze-out of scalar perturbations in the two point function at horizon crossing is a consequence of Carroll symmetry. To make the paper self-contained, we include a brief pedagogical review of Carroll symmetry, Carroll particles and Carroll field theories that contains some new material as well. In particular we show, using an expansion around speed of light going to zero, that for scalar and Maxwell type theories one can take two different Carroll limits at the level of the action. In the Maxwell case these correspond to the electric and magnetic limit. For point particles we show that there are two types of Carroll particles: those that cannot move in space and particles that cannot stand still.
8.139976
8.618104
8.537416
7.776004
8.248317
8.442829
8.251904
8.228436
7.930391
8.68719
7.938433
7.54002
8.067366
7.681937
7.563652
7.548729
7.742333
7.757947
7.879308
7.908108
7.960555
hep-th/9806043
Naik Satchidananda
Satchidananda Naik
Deriving exact prepotential for $N = 2$ supersymmetric Yang-Mills theories from superconformal anomaly with rank two gauge groups
Latex file, 14 Pages, some minor changes, References added preprint-MRI-985049
Nucl.Phys. B538 (1999) 137-148
10.1016/S0550-3213(98)00722-6
null
hep-th
null
The exact prepotential for $N = 2$ supersymmetric Yang-Mills theory is derived from the superconformal anomalous Ward identity for the gauge group SU(2) and SU(3) which can be generalized to any other rank two gauge group.
[ { "created": "Thu, 4 Jun 1998 21:22:03 GMT", "version": "v1" }, { "created": "Thu, 8 Oct 1998 11:18:43 GMT", "version": "v2" } ]
2009-10-31
[ [ "Naik", "Satchidananda", "" ] ]
The exact prepotential for $N = 2$ supersymmetric Yang-Mills theory is derived from the superconformal anomalous Ward identity for the gauge group SU(2) and SU(3) which can be generalized to any other rank two gauge group.
8.598691
7.669981
8.495306
7.539995
6.963146
7.351351
6.660597
7.122565
7.015082
9.947744
8.053581
6.754607
7.548967
6.679833
6.686536
7.397334
7.036908
7.30633
6.865157
7.419625
7.17997
1007.3503
Oriol Pujolas
Diego Blas, Oriol Pujolas and Sergey Sibiryakov
Models of non-relativistic quantum gravity: the good, the bad and the healthy
50 pages, JHEP style
JHEP 1104:018,2011
10.1007/JHEP04(2011)018
null
hep-th astro-ph.CO gr-qc hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Horava's proposal for non-relativistic quantum gravity introduces a preferred time foliation of space-time which violates the local Lorentz invariance. The foliation is encoded in a dynamical scalar field which we call `khronon'. The dynamics of the khronon field is sensitive to the symmetries and other details of the particular implementations of the proposal. In this paper we examine several consistency issues present in three non-relativistic gravity theories: Horava's projectable theory, the healthy non-projectable extension, and a new extension related to ghost condensation. We find that the only model which is free from instabilities and strong coupling is the non-projectable one. We elaborate on the phenomenology of the latter model including a discussion of the couplings of the khronon to matter. In particular, we obtain the parameters of the post-Newtonian expansion in this model and show that they are compatible with current observations.
[ { "created": "Tue, 20 Jul 2010 20:00:20 GMT", "version": "v1" } ]
2011-04-11
[ [ "Blas", "Diego", "" ], [ "Pujolas", "Oriol", "" ], [ "Sibiryakov", "Sergey", "" ] ]
Horava's proposal for non-relativistic quantum gravity introduces a preferred time foliation of space-time which violates the local Lorentz invariance. The foliation is encoded in a dynamical scalar field which we call `khronon'. The dynamics of the khronon field is sensitive to the symmetries and other details of the particular implementations of the proposal. In this paper we examine several consistency issues present in three non-relativistic gravity theories: Horava's projectable theory, the healthy non-projectable extension, and a new extension related to ghost condensation. We find that the only model which is free from instabilities and strong coupling is the non-projectable one. We elaborate on the phenomenology of the latter model including a discussion of the couplings of the khronon to matter. In particular, we obtain the parameters of the post-Newtonian expansion in this model and show that they are compatible with current observations.
6.275669
6.272595
6.27095
6.122197
5.976133
6.355796
6.481038
5.72696
6.255337
6.477906
6.100039
6.011421
6.133311
5.932364
6.100698
5.947154
6.086096
6.006404
5.987981
6.264463
5.829717
1407.6736
Livia Ferro
Livia Ferro, Tomasz Lukowski and Matthias Staudacher
N=4 Scattering Amplitudes and the Deformed Grassmannian
15 pages
null
10.1016/j.nuclphysb.2014.10.012
HU-EP-14/26, AEI-2014-030, HU-Mathematik-2014-16, CERN-PH-TH-2014-107, LMU-ASC 42/14
hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Some time ago the general tree-level scattering amplitudes of N=4 Super Yang-Mills theory were expressed as certain Grassmannian contour integrals. These remarkable formulas allow to clearly expose the super-conformal, dual super-conformal, and Yangian symmetries of the amplitudes. Using ideas from integrability it was recently shown that the building blocks of the amplitudes permit a natural multi-parameter deformation. However, this approach had been criticized by the observation that it seemed impossible to reassemble the building blocks into Yangian-invariant deformed non-MHV amplitudes. In this note we demonstrate that the deformations may be succinctly summarized by a simple modification of the measure of the Grassmannian integrals, leading to a Yangian-invariant deformation of the general tree-level amplitudes. Interestingly, the deformed building-blocks appear as residues of poles in the spectral parameter planes. Given that the contour integrals also contain information on the amplitudes at loop-level, we expect the deformations to be useful there as well. In particular, applying meromorphicity arguments, they may be expected to regulate all notorious infrared divergences. We also point out relations to Gelfand hypergeometric functions and the quantum Knizhnik-Zamolodchikov equations.
[ { "created": "Thu, 24 Jul 2014 21:00:28 GMT", "version": "v1" } ]
2015-06-22
[ [ "Ferro", "Livia", "" ], [ "Lukowski", "Tomasz", "" ], [ "Staudacher", "Matthias", "" ] ]
Some time ago the general tree-level scattering amplitudes of N=4 Super Yang-Mills theory were expressed as certain Grassmannian contour integrals. These remarkable formulas allow to clearly expose the super-conformal, dual super-conformal, and Yangian symmetries of the amplitudes. Using ideas from integrability it was recently shown that the building blocks of the amplitudes permit a natural multi-parameter deformation. However, this approach had been criticized by the observation that it seemed impossible to reassemble the building blocks into Yangian-invariant deformed non-MHV amplitudes. In this note we demonstrate that the deformations may be succinctly summarized by a simple modification of the measure of the Grassmannian integrals, leading to a Yangian-invariant deformation of the general tree-level amplitudes. Interestingly, the deformed building-blocks appear as residues of poles in the spectral parameter planes. Given that the contour integrals also contain information on the amplitudes at loop-level, we expect the deformations to be useful there as well. In particular, applying meromorphicity arguments, they may be expected to regulate all notorious infrared divergences. We also point out relations to Gelfand hypergeometric functions and the quantum Knizhnik-Zamolodchikov equations.
7.343311
7.747097
8.398839
7.585964
8.123485
8.113478
7.414042
7.537221
7.722535
9.761369
7.639172
7.417514
7.563294
7.253756
7.381138
7.111726
7.374109
7.327141
7.343017
7.680944
7.330341
1708.01563
Katrin Wendland
Anne Taormina, Katrin Wendland
Not Doomed to Fail
10 pages, no figures, clarifications added. Version accepted for publication in JHEP
JHEP09(2018)062
10.1007/JHEP09(2018)062
DCPT-17/27
hep-th math-ph math.MP math.RA math.RT
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In their recent manuscript "An Uplifting Discussion of T-Duality", arXiv:1707.08888, J. Harvey and G. Moore have reevaluated a mod two condition appearing in asymmetric orbifold constructions as an obstruction to the description of certain symmetries of toroidal conformal field theories by means of automorphisms of the underlying charge lattice. The relevant "doomed to fail" condition determines whether or not such a lattice automorphism g may lift to a symmetry in the corresponding toroidal conformal field theory without introducing extra phases. If doomed to fail, then in some cases, the lift of g must have double the order of g. It is an interesting question, whether or not "geometric" symmetries are affected by these findings. In the present note, we answer this question in the negative, by means of elementary linear algebra: "geometric" symmetries of toroidal conformal field theories are not doomed to fail. Consequently, and in particular, the symmetry groups involved in symmetry surfing the moduli space of K3 theories do not differ from their lifts.
[ { "created": "Thu, 3 Aug 2017 15:42:00 GMT", "version": "v1" }, { "created": "Fri, 27 Apr 2018 09:03:32 GMT", "version": "v2" }, { "created": "Sun, 16 Sep 2018 12:35:05 GMT", "version": "v3" } ]
2018-09-26
[ [ "Taormina", "Anne", "" ], [ "Wendland", "Katrin", "" ] ]
In their recent manuscript "An Uplifting Discussion of T-Duality", arXiv:1707.08888, J. Harvey and G. Moore have reevaluated a mod two condition appearing in asymmetric orbifold constructions as an obstruction to the description of certain symmetries of toroidal conformal field theories by means of automorphisms of the underlying charge lattice. The relevant "doomed to fail" condition determines whether or not such a lattice automorphism g may lift to a symmetry in the corresponding toroidal conformal field theory without introducing extra phases. If doomed to fail, then in some cases, the lift of g must have double the order of g. It is an interesting question, whether or not "geometric" symmetries are affected by these findings. In the present note, we answer this question in the negative, by means of elementary linear algebra: "geometric" symmetries of toroidal conformal field theories are not doomed to fail. Consequently, and in particular, the symmetry groups involved in symmetry surfing the moduli space of K3 theories do not differ from their lifts.
12.018629
12.888764
14.29682
11.369073
13.190767
13.216975
12.570695
11.913243
11.8962
14.323452
11.361738
11.124185
12.006222
11.177315
11.392981
11.490299
11.631859
11.355082
11.446692
12.037094
11.110539
1509.02160
Kristan Jensen
Kristan Jensen, Andy O'Bannon
A Constraint on Defect and Boundary Renormalization Group Flows
9 pages, ReVTeX, v2: references added and a minor correction
Phys. Rev. Lett. 116, 091601 (2016)
10.1103/PhysRevLett.116.091601
OUTP-15-19P, YITP-SB-15-33
hep-th cond-mat.mes-hall cond-mat.stat-mech cond-mat.str-el
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A conformal field theory (CFT) in dimension $d\geq 3$ coupled to a planar, two-dimensional, conformal defect is characterized in part by a "central charge" $b$ that multiplies the Euler density in the defect's Weyl anomaly. For defect renormalization group flows, under which the bulk remains critical, we use reflection positivity to show that $b$ must decrease or remain constant from ultraviolet to infrared. Our result applies also to a CFT in $d=3$ flat space with a planar boundary.
[ { "created": "Mon, 7 Sep 2015 20:06:59 GMT", "version": "v1" }, { "created": "Thu, 17 Sep 2015 19:07:17 GMT", "version": "v2" } ]
2016-03-09
[ [ "Jensen", "Kristan", "" ], [ "O'Bannon", "Andy", "" ] ]
A conformal field theory (CFT) in dimension $d\geq 3$ coupled to a planar, two-dimensional, conformal defect is characterized in part by a "central charge" $b$ that multiplies the Euler density in the defect's Weyl anomaly. For defect renormalization group flows, under which the bulk remains critical, we use reflection positivity to show that $b$ must decrease or remain constant from ultraviolet to infrared. Our result applies also to a CFT in $d=3$ flat space with a planar boundary.
7.314229
7.35195
8.623166
6.838618
7.274803
6.809566
7.899976
6.870991
6.846571
10.103633
6.984116
7.369166
8.220663
7.173082
7.143024
6.982961
7.239211
7.510252
6.985855
7.955441
7.177176
1412.4889
Jean Pierre Veiro
A. Restuccia and J. P. Veiro
Yang-Mills connections valued on the octonionic algebra
Proceedings for the XIX Simposio Chileno de Fisica, SOCHIFI 2014 Conference, 26-28 November 2014, held at Concepcion U., Chile
Journal of Physics: Conference Series 720 (2016) 012018
10.1088/1742-6596/720/1/012018
null
hep-th math-ph math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a formulation of Yang-Mills theory where the gauge field is valued on an octonionic algebra and the gauge transformation is the group of automorphisms of it. We show, under mild assumptions, that the only possible gauge formulations are the usual $\mathfrak{su}(2)$ or $\mathfrak{u}(1)$ Yang-Mills theories.
[ { "created": "Tue, 16 Dec 2014 06:02:40 GMT", "version": "v1" }, { "created": "Thu, 31 Dec 2015 23:20:48 GMT", "version": "v2" } ]
2016-08-19
[ [ "Restuccia", "A.", "" ], [ "Veiro", "J. P.", "" ] ]
We consider a formulation of Yang-Mills theory where the gauge field is valued on an octonionic algebra and the gauge transformation is the group of automorphisms of it. We show, under mild assumptions, that the only possible gauge formulations are the usual $\mathfrak{su}(2)$ or $\mathfrak{u}(1)$ Yang-Mills theories.
6.727686
6.340384
6.573923
5.794248
6.016015
6.335189
6.189386
5.721675
5.657752
6.776857
6.074314
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6.271185
6.215721
6.30316
6.293283
6.097571
6.03188
6.131433
6.07892
5.879311
1210.4997
Marco Panero
Biagio Lucini and Marco Panero
SU(N) gauge theories at large N
2+97 pages, 29 pdf figures; prepared for submission to Physics Reports. V2: 3+104 pages, 30 figures: references added, discussion expanded, typos corrected: version submitted to and published in Physics Reports
Physics Reports 526 (2013) 93-163
10.1016/j.physrep.2013.01.001
HIP-2012-24/TH; NSF-KITP-12-190
hep-th hep-lat hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review the theoretical developments and conceptual advances that stemmed from the generalization of QCD to the limit of a large number of color charges, originally proposed by 't Hooft. Then, after introducing the gauge-invariant non-perturbative formulation of non-Abelian gauge theories on a spacetime lattice, we present a selection of results from recent lattice studies of theories with a different number of colors, and the findings obtained from their extrapolation to the 't Hooft limit. We conclude with a brief discussion and a summary.
[ { "created": "Thu, 18 Oct 2012 00:51:28 GMT", "version": "v1" }, { "created": "Fri, 26 Apr 2013 10:23:08 GMT", "version": "v2" } ]
2013-04-29
[ [ "Lucini", "Biagio", "" ], [ "Panero", "Marco", "" ] ]
We review the theoretical developments and conceptual advances that stemmed from the generalization of QCD to the limit of a large number of color charges, originally proposed by 't Hooft. Then, after introducing the gauge-invariant non-perturbative formulation of non-Abelian gauge theories on a spacetime lattice, we present a selection of results from recent lattice studies of theories with a different number of colors, and the findings obtained from their extrapolation to the 't Hooft limit. We conclude with a brief discussion and a summary.
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hep-th/9211083
Elias Kiritsis
I. Bakas and E. Kiritsis
Target Space Description of W-Infinity Symmetry in Coset Models
8pp, Latex, LPTENS-92-30
Phys.Lett. B301 (1993) 49-52
10.1016/0370-2693(93)90719-X
null
hep-th
null
Various typos corrected
[ { "created": "Wed, 18 Nov 1992 15:21:21 GMT", "version": "v1" }, { "created": "Mon, 7 Dec 1992 12:01:51 GMT", "version": "v2" } ]
2009-10-22
[ [ "Bakas", "I.", "" ], [ "Kiritsis", "E.", "" ] ]
Various typos corrected
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