id stringlengths 9 14 | submitter stringlengths 1 50 ⌀ | authors stringlengths 5 666 | title stringlengths 5 242 | comments stringlengths 1 609 ⌀ | journal-ref stringlengths 9 243 ⌀ | doi stringlengths 12 113 ⌀ | report-no stringlengths 2 204 ⌀ | categories stringlengths 6 112 | license stringclasses 9
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0708.2798 | Nissan Itzhaki | Nissan Itzhaki and Ely D. Kovetz | Inflection Point Inflation and Time Dependent Potentials in String
Theory | 15 pages, 2 figures, refs. added | JHEP 0710:054,2007 | 10.1088/1126-6708/2007/10/054 | null | hep-th astro-ph.CO hep-ph | null | We consider models of inflection point inflation. The main drawback of such
models is that they suffer from the overshoot problem. Namely the initial
condition should be fine tuned to be near the inflection point for the universe
to inflate. We show that stringy realizations of inflection point inflation are
common a... | [
{
"created": "Tue, 21 Aug 2007 10:03:23 GMT",
"version": "v1"
},
{
"created": "Sun, 2 Sep 2007 08:16:22 GMT",
"version": "v2"
}
] | 2010-04-30 | [
[
"Itzhaki",
"Nissan",
""
],
[
"Kovetz",
"Ely D.",
""
]
] | We consider models of inflection point inflation. The main drawback of such models is that they suffer from the overshoot problem. Namely the initial condition should be fine tuned to be near the inflection point for the universe to inflate. We show that stringy realizations of inflection point inflation are common and... |
1410.2257 | Yue Zhao | Xi Dong, Daniel Z. Freedman, Yue Zhao | Explicitly Broken Supersymmetry with Exactly Massless Moduli | Match to published version. All order corrections, i.e. exact results
after SUSY breaking, are shown | JHEP 1606: 090, 2016 | 10.1007/JHEP06(2016)090 | SU-ITP-14/23, MIT-CTP/4598 | hep-th hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | There is an avatar of the little hierarchy problem of the MSSM in
3-dimensional supersymmetry. We propose a solution to this problem in AdS$_3$
based on the AdS/CFT correspondence. The bulk theory is a supergravity theory
in which U(1) $\times$ U(1) R-symmetry is gauged by Chern-Simons fields. The
bulk theory is defo... | [
{
"created": "Wed, 8 Oct 2014 20:02:30 GMT",
"version": "v1"
},
{
"created": "Sun, 19 Jun 2016 00:22:55 GMT",
"version": "v2"
}
] | 2016-06-22 | [
[
"Dong",
"Xi",
""
],
[
"Freedman",
"Daniel Z.",
""
],
[
"Zhao",
"Yue",
""
]
] | There is an avatar of the little hierarchy problem of the MSSM in 3-dimensional supersymmetry. We propose a solution to this problem in AdS$_3$ based on the AdS/CFT correspondence. The bulk theory is a supergravity theory in which U(1) $\times$ U(1) R-symmetry is gauged by Chern-Simons fields. The bulk theory is deform... |
hep-th/9710048 | Ivan Avramidi | Ivan G. Avramidi (University of Iowa) and Giampiero Esposito (INFN and
University of Naples) | Gauge theories on manifolds with boundary | 50 pages, LaTeX, 127 KB, no figures, Sections 3 and 7 completely
revised | Commun.Math.Phys. 200 (1999) 495-543 | 10.1007/s002200050539 | University of Greifswald (October, 1997), DSF 97/45 | hep-th dg-ga gr-qc math.DG | null | The boundary-value problem for Laplace-type operators acting on smooth
sections of a vector bundle over a compact Riemannian manifold with generalized
local boundary conditions including both normal and tangential derivatives is
studied. The condition of strong ellipticity of this boundary-value problem is
formulated... | [
{
"created": "Mon, 6 Oct 1997 11:52:19 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Apr 1998 23:03:01 GMT",
"version": "v2"
}
] | 2009-10-30 | [
[
"Avramidi",
"Ivan G.",
"",
"University of Iowa"
],
[
"Esposito",
"Giampiero",
"",
"INFN and\n University of Naples"
]
] | The boundary-value problem for Laplace-type operators acting on smooth sections of a vector bundle over a compact Riemannian manifold with generalized local boundary conditions including both normal and tangential derivatives is studied. The condition of strong ellipticity of this boundary-value problem is formulated. ... |
2310.19317 | Ryo Kitaku | Takaaki Ishii, Ryo Kitaku, Keiju Murata, Chul-Moon Yoo | Turbulence on open string worldsheets under non-integrable boundary
conditions | 21 pages, 11 figures, JHEP accepted version | JHEP02(2024)149 | 10.1007/JHEP02(2024)149 | RUP-23-23 | hep-th gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We demonstrate the turbulent dynamics of the Nambu-Goto open string in the
AdS3 spacetime. While the motion of a classical closed string in AdS is known
to be integrable, the integrability of an open string motion depends on the
boundary conditions at the string endpoints. We numerically solve the equations
of motion... | [
{
"created": "Mon, 30 Oct 2023 07:28:04 GMT",
"version": "v1"
},
{
"created": "Thu, 22 Feb 2024 13:29:07 GMT",
"version": "v2"
}
] | 2024-02-23 | [
[
"Ishii",
"Takaaki",
""
],
[
"Kitaku",
"Ryo",
""
],
[
"Murata",
"Keiju",
""
],
[
"Yoo",
"Chul-Moon",
""
]
] | We demonstrate the turbulent dynamics of the Nambu-Goto open string in the AdS3 spacetime. While the motion of a classical closed string in AdS is known to be integrable, the integrability of an open string motion depends on the boundary conditions at the string endpoints. We numerically solve the equations of motion o... |
hep-th/9310092 | Jan Willem v. Holten | J.W. van Holten | New supersymetries for spinning particles and black holes | 13 pages, Lecture at the workshop on Constraint Theory and
Quantization Methods, Montepulciano (It) june/july 1993, NIKHEF-H/93-25 | null | null | null | hep-th | null | The usual extensions of supersymmetry require the existence of a complex
structure and the formulation of the theory on K\"{a}hler manifolds. It is
shown, that by relaxing the constraints on the algebra of supercharges we can
get new supersymmetries whenever a manifold possesses a structure admitting the
existence of... | [
{
"created": "Fri, 15 Oct 1993 10:07:50 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"van Holten",
"J. W.",
""
]
] | The usual extensions of supersymmetry require the existence of a complex structure and the formulation of the theory on K\"{a}hler manifolds. It is shown, that by relaxing the constraints on the algebra of supercharges we can get new supersymmetries whenever a manifold possesses a structure admitting the existence of a... |
2010.00018 | Dominik Neuenfeld | Hong Zhe Chen, Robert C. Myers, Dominik Neuenfeld, Ignacio A. Reyes,
Joshua Sandor | Quantum Extremal Islands Made Easy, Part II: Black Holes on the Brane | 84 pages, 24 figures | null | null | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We discuss holographic models of extremal and non-extremal black holes in
contact with a bath in d dimensions, based on a brane world model introduced in
arXiv:2006.04851. The main benefit of our setup is that it allows for a high
degree of analytic control as compared to previous work in higher dimensions.
We show t... | [
{
"created": "Wed, 30 Sep 2020 18:00:02 GMT",
"version": "v1"
}
] | 2020-10-02 | [
[
"Chen",
"Hong Zhe",
""
],
[
"Myers",
"Robert C.",
""
],
[
"Neuenfeld",
"Dominik",
""
],
[
"Reyes",
"Ignacio A.",
""
],
[
"Sandor",
"Joshua",
""
]
] | We discuss holographic models of extremal and non-extremal black holes in contact with a bath in d dimensions, based on a brane world model introduced in arXiv:2006.04851. The main benefit of our setup is that it allows for a high degree of analytic control as compared to previous work in higher dimensions. We show tha... |
1011.2392 | Anisur Rahaman | Anisur Rahaman | A note on the vector Schwinger Model with the photon mass term: Gauge
invariant reformulation, operator solution and path integral formulation | This note is to report the erroneous result published in Mod. Phys.
Lett. A22 2993 (2008) by U. Kulshreshtha. The correct result of which can
automatically be followed from a paper of us published in Ann. Phys. (N. Y.)
249 34 (1996). It is 9 pages latex. Some references are added. One correction
is made in the ... | null | null | null | hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Vector Schwinger model is reinvestigated with the mass like term for gauge
field. Phase space structure has been determined in this situation. It has been
found that mass of the gauge boson acquires a generalized expression with the
bare coupling constant and the parameters involved in the masslike terms for
the gaug... | [
{
"created": "Wed, 10 Nov 2010 14:40:18 GMT",
"version": "v1"
},
{
"created": "Sun, 2 Sep 2012 06:52:07 GMT",
"version": "v2"
}
] | 2012-09-04 | [
[
"Rahaman",
"Anisur",
""
]
] | Vector Schwinger model is reinvestigated with the mass like term for gauge field. Phase space structure has been determined in this situation. It has been found that mass of the gauge boson acquires a generalized expression with the bare coupling constant and the parameters involved in the masslike terms for the gauge ... |
1611.08325 | Matthew von Hippel | Lance J. Dixon, Matt von Hippel, Andrew J. McLeod, Jaroslav Trnka | Multi-Loop Positivity of the Planar ${\cal N}=4$ SYM Six-Point Amplitude | 45 pages, 7 figures, 4 ancillary files. v2: typos corrected; version
to appear in JHEP | JHEP 1702 (2017) 112 | 10.1007/JHEP02(2017)112 | SLAC-PUB-16873 | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the six-point NMHV ratio function in planar ${\cal N}=4$ SYM theory
in the context of positive geometry. The Amplituhedron construction of the
integrand for the amplitudes provides a kinematical region in which the
integrand was observed to be positive. It is natural to conjecture that this
property survives... | [
{
"created": "Fri, 25 Nov 2016 00:03:13 GMT",
"version": "v1"
},
{
"created": "Fri, 3 Mar 2017 14:20:35 GMT",
"version": "v2"
}
] | 2017-03-06 | [
[
"Dixon",
"Lance J.",
""
],
[
"von Hippel",
"Matt",
""
],
[
"McLeod",
"Andrew J.",
""
],
[
"Trnka",
"Jaroslav",
""
]
] | We study the six-point NMHV ratio function in planar ${\cal N}=4$ SYM theory in the context of positive geometry. The Amplituhedron construction of the integrand for the amplitudes provides a kinematical region in which the integrand was observed to be positive. It is natural to conjecture that this property survives i... |
hep-th/9411024 | Emili Elizalde | E. Elizalde and S.D. Odintsov | Non-Critical Bosonic String Corrections to the Black Hole Entropy | 8 pages, latex, no figures | Mod.Phys.Lett.A10:1187-1194,1995 | 10.1142/S0217732395001307 | UB-ECM-PF 94/30 | hep-th | null | We calculate the quantum corrections to the entropy of a very large black
hole, coming from the theory of a $D$-dimensional, non-critical bosonic string.
We show that, for $D >2$, as a result of modular invariance the entropy is
ultraviolet finite, although it diverges in the infrared (while for $D=2$ the
entropy con... | [
{
"created": "Thu, 3 Nov 1994 13:16:40 GMT",
"version": "v1"
}
] | 2009-09-17 | [
[
"Elizalde",
"E.",
""
],
[
"Odintsov",
"S. D.",
""
]
] | We calculate the quantum corrections to the entropy of a very large black hole, coming from the theory of a $D$-dimensional, non-critical bosonic string. We show that, for $D >2$, as a result of modular invariance the entropy is ultraviolet finite, although it diverges in the infrared (while for $D=2$ the entropy conta... |
hep-th/0009089 | Steven Abel | S.A. Abel and G. Servant | Dilaton Stabilization in Effective Type I String Models | 23 pages, 3 figures | Nucl.Phys. B597 (2001) 3-22 | 10.1016/S0550-3213(00)00740-9 | Saclay t00/118 | hep-th hep-ph | null | We show that the dilaton and T-moduli can be stabilized by a single gaugino
condensation mechanism in the four-dimensional effective field theory derived
from Type IIB orientifolds. A crucial role is played by the mixing of the
blowing-up modes Mk with the T-moduli in the Kahler metric, and by the presence
of the Mk ... | [
{
"created": "Tue, 12 Sep 2000 16:17:19 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Sep 2000 18:00:30 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Abel",
"S. A.",
""
],
[
"Servant",
"G.",
""
]
] | We show that the dilaton and T-moduli can be stabilized by a single gaugino condensation mechanism in the four-dimensional effective field theory derived from Type IIB orientifolds. A crucial role is played by the mixing of the blowing-up modes Mk with the T-moduli in the Kahler metric, and by the presence of the Mk in... |
0810.0771 | Willem Westra | Willem Westra | Topology Change and the Emergence of Geometry in Two Dimensional Causal
Quantum Gravity | 110 pages, 30 figures, PhD thesis | null | null | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this thesis we analyze a very simple model of two dimensional quantum
gravity based on causal dynamical triangulations (CDT). We present an exactly
solvable model which indicates that it is possible to incorporate spatial
topology changes in the nonperturbative path integral. It is shown that if the
change in spat... | [
{
"created": "Sat, 4 Oct 2008 16:50:06 GMT",
"version": "v1"
}
] | 2008-10-07 | [
[
"Westra",
"Willem",
""
]
] | In this thesis we analyze a very simple model of two dimensional quantum gravity based on causal dynamical triangulations (CDT). We present an exactly solvable model which indicates that it is possible to incorporate spatial topology changes in the nonperturbative path integral. It is shown that if the change in spatia... |
hep-th/0611171 | Marika Taylor | I. Kanitscheider, K. Skenderis and M. Taylor | Holographic anatomy of fuzzballs | 87 pages, begins with 10 page self contained summary of
results;v2:JHEP version; v3: typos corrected, see in particular formula D.16 | JHEP 0704:023,2007 | 10.1088/1126-6708/2007/04/023 | ITFA-2006-28 | hep-th | null | We present a comprehensive analysis of 2-charge fuzzball solutions, that is,
horizon-free non-singular solutions of IIB supergravity characterized by a
curve on R^4. We propose a precise map that relates any given curve to a
specific superposition of R ground states of the D1-D5 system. To test this
proposal we compu... | [
{
"created": "Wed, 15 Nov 2006 14:41:55 GMT",
"version": "v1"
},
{
"created": "Tue, 27 Mar 2007 20:44:26 GMT",
"version": "v2"
},
{
"created": "Wed, 12 Sep 2007 11:40:58 GMT",
"version": "v3"
}
] | 2010-10-27 | [
[
"Kanitscheider",
"I.",
""
],
[
"Skenderis",
"K.",
""
],
[
"Taylor",
"M.",
""
]
] | We present a comprehensive analysis of 2-charge fuzzball solutions, that is, horizon-free non-singular solutions of IIB supergravity characterized by a curve on R^4. We propose a precise map that relates any given curve to a specific superposition of R ground states of the D1-D5 system. To test this proposal we compute... |
hep-th/0212225 | Seiberg | Nathan Seiberg | Adding Fundamental Matter to ``Chiral Rings and Anomalies in
Supersymmetric Gauge Theory'' | 14 pages | JHEP 0301:061,2003 | 10.1088/1126-6708/2003/01/061 | null | hep-th | null | We consider a supersymmetric U(N) gauge theory with matter fields in the
adjoint, fundamental and anti-fundamental representations. As in the framework
which was put forward by Dijkgraaf and Vafa, this theory can be described by a
matrix model. We analyze this theory along the lines of [F. Cachazo, M.
Douglas, N.S. a... | [
{
"created": "Wed, 18 Dec 2002 20:46:57 GMT",
"version": "v1"
}
] | 2016-09-06 | [
[
"Seiberg",
"Nathan",
""
]
] | We consider a supersymmetric U(N) gauge theory with matter fields in the adjoint, fundamental and anti-fundamental representations. As in the framework which was put forward by Dijkgraaf and Vafa, this theory can be described by a matrix model. We analyze this theory along the lines of [F. Cachazo, M. Douglas, N.S. and... |
1204.0886 | Soumitra SenGupta | Sayantani Lahiri and Soumitra SenGupta | On the origin of brane cosmological constant in two-brane warped
geometry model | 16 Pages, Latex | null | null | null | hep-th gr-qc hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the backdrop of generalised Randall-Sundrum braneworld scenario, we look
for the possible origin of an effective four dimensional cosmological constant
($\Omega_{vis}$) on the visible 3-brane due to the effects of bulk curvature
and the modulus field that can either be a constant or dependent on extra
dimensional ... | [
{
"created": "Wed, 4 Apr 2012 08:24:17 GMT",
"version": "v1"
}
] | 2012-04-05 | [
[
"Lahiri",
"Sayantani",
""
],
[
"SenGupta",
"Soumitra",
""
]
] | In the backdrop of generalised Randall-Sundrum braneworld scenario, we look for the possible origin of an effective four dimensional cosmological constant ($\Omega_{vis}$) on the visible 3-brane due to the effects of bulk curvature and the modulus field that can either be a constant or dependent on extra dimensional co... |
1911.03196 | Partha Nandi | Saptarshi Biswas, Partha Nandi, Biswajit Chakraborty | Emergence of Geometric phase shift in Planar Non-commutative Quantum
Mechanics | null | Phys. Rev. A 102, 022231 (2020) | 10.1103/PhysRevA.102.022231 | null | hep-th quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Appearance of adiabatic geometric phase shift in the context of
noncommutative quantum mechanics is studied using an exactly solvable model of
2D simple harmonic oscilator in Moyal plane, where momentum non-commutativity
are also considered along with spatial noncommutativity. After finding a
suitable Bopp shift, tha... | [
{
"created": "Fri, 8 Nov 2019 11:39:22 GMT",
"version": "v1"
},
{
"created": "Tue, 19 Nov 2019 19:03:52 GMT",
"version": "v2"
},
{
"created": "Wed, 5 Aug 2020 12:51:29 GMT",
"version": "v3"
}
] | 2020-09-02 | [
[
"Biswas",
"Saptarshi",
""
],
[
"Nandi",
"Partha",
""
],
[
"Chakraborty",
"Biswajit",
""
]
] | Appearance of adiabatic geometric phase shift in the context of noncommutative quantum mechanics is studied using an exactly solvable model of 2D simple harmonic oscilator in Moyal plane, where momentum non-commutativity are also considered along with spatial noncommutativity. After finding a suitable Bopp shift, that ... |
1806.05196 | George Zahariade | Tanmay Vachaspati and George Zahariade | A Classical-Quantum Correspondence and Backreaction | 8 pages, 7 figures. Published version | Phys. Rev. D 98, 065002 (2018) | 10.1103/PhysRevD.98.065002 | null | hep-th gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We work in the Heisenberg picture to demonstrate the classical-quantum
correspondence (CQC) in which the dynamics of a quantum variable is equivalent
to that of a complexified classical variable. The correspondence provides a
tool for analyzing quantum backreaction problems which we illustrate by a toy
model in which... | [
{
"created": "Wed, 13 Jun 2018 18:00:08 GMT",
"version": "v1"
},
{
"created": "Sat, 20 Oct 2018 02:23:12 GMT",
"version": "v2"
}
] | 2018-10-23 | [
[
"Vachaspati",
"Tanmay",
""
],
[
"Zahariade",
"George",
""
]
] | We work in the Heisenberg picture to demonstrate the classical-quantum correspondence (CQC) in which the dynamics of a quantum variable is equivalent to that of a complexified classical variable. The correspondence provides a tool for analyzing quantum backreaction problems which we illustrate by a toy model in which a... |
1705.10605 | Daniel Grumiller | Daniel Grumiller, Alfredo Perez, David Tempo, Ricardo Troncoso | Log corrections to entropy of three dimensional black holes with soft
hair | 15 pages, no figures, v2: added ref | JHEP08 (2017) 107 | 10.1007/JHEP08(2017)107 | CECS-PHY-17/03, TUW-17-03 | hep-th gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We calculate log corrections to the entropy of three-dimensional black holes
with "soft hairy" boundary conditions. Their thermodynamics possesses some
special features that preclude a naive direct evaluation of these corrections,
so we follow two different approaches. The first one exploits that the BTZ
black hole b... | [
{
"created": "Tue, 30 May 2017 13:18:35 GMT",
"version": "v1"
},
{
"created": "Sat, 3 Jun 2017 16:23:52 GMT",
"version": "v2"
}
] | 2017-08-24 | [
[
"Grumiller",
"Daniel",
""
],
[
"Perez",
"Alfredo",
""
],
[
"Tempo",
"David",
""
],
[
"Troncoso",
"Ricardo",
""
]
] | We calculate log corrections to the entropy of three-dimensional black holes with "soft hairy" boundary conditions. Their thermodynamics possesses some special features that preclude a naive direct evaluation of these corrections, so we follow two different approaches. The first one exploits that the BTZ black hole bel... |
hep-th/0306247 | Fedele Lizzi | F. Lizzi, P. Vitale, A. Zampini | The Fuzzy Disc | 17 pages, 8 figures, references added and corrected | JHEP 0308:057,2003 | 10.1088/1126-6708/2003/08/057 | DSF-21-2003 | hep-th cond-mat.mes-hall hep-lat math-ph math.MP math.QA | null | We introduce a finite dimensional matrix model approximation to the algebra
of functions on a disc based on noncommutative geometry. The algebra is a
subalgebra of the one characterizing the noncommutative plane with a * product
and depends on two parameters N and theta. It is composed of functions which
decay expone... | [
{
"created": "Wed, 25 Jun 2003 13:53:22 GMT",
"version": "v1"
},
{
"created": "Thu, 3 Jul 2003 15:02:01 GMT",
"version": "v2"
}
] | 2014-11-18 | [
[
"Lizzi",
"F.",
""
],
[
"Vitale",
"P.",
""
],
[
"Zampini",
"A.",
""
]
] | We introduce a finite dimensional matrix model approximation to the algebra of functions on a disc based on noncommutative geometry. The algebra is a subalgebra of the one characterizing the noncommutative plane with a * product and depends on two parameters N and theta. It is composed of functions which decay exponent... |
hep-th/9903166 | Lee Smolin | Lee Smolin | A candidate for a background independent formulation of M theory | Latex 46 pages, 21 figures, new results included which lead to a
modification of the statement of the basic conjecture. Presentation improved | Phys.Rev.D62:086001,2000 | 10.1103/PhysRevD.62.086001 | null | hep-th | null | A class of background independent membrane field theories are studied, and
several properties are discovered which suggest that they may play a role in a
background independent form of M theory. The bulk kinematics of these theories
are described in terms of the conformal blocks of an algebra G on all oriented,
finit... | [
{
"created": "Fri, 19 Mar 1999 17:20:02 GMT",
"version": "v1"
},
{
"created": "Sat, 20 Mar 1999 13:44:07 GMT",
"version": "v2"
},
{
"created": "Mon, 8 Nov 1999 11:03:03 GMT",
"version": "v3"
},
{
"created": "Mon, 10 Jan 2000 17:10:05 GMT",
"version": "v4"
}
] | 2014-11-18 | [
[
"Smolin",
"Lee",
""
]
] | A class of background independent membrane field theories are studied, and several properties are discovered which suggest that they may play a role in a background independent form of M theory. The bulk kinematics of these theories are described in terms of the conformal blocks of an algebra G on all oriented, finite ... |
2111.01967 | Pei-Ming Ho | Pei-Ming Ho, Hikaru Kawai, Yuki Yokokura | Planckian Physics Comes Into Play At Planckian Distance From Horizon | 24 pages, no figure, reference added, minor modification | null | 10.1007/JHEP01(2022)019 | RIKEN-iTHEMS-Report-21 | hep-th gr-qc | http://creativecommons.org/licenses/by/4.0/ | In the background of a gravitational collapse, we compute the transition
amplitudes for the creation of particles for distant observers due to
higher-derivative interactions in addition to Hawking radiation. The amplitudes
grow exponentially with time and become of order 1 when the collapsing matter
is about a Planck... | [
{
"created": "Wed, 3 Nov 2021 01:21:22 GMT",
"version": "v1"
},
{
"created": "Wed, 17 Nov 2021 12:46:50 GMT",
"version": "v2"
},
{
"created": "Sat, 25 Dec 2021 13:54:23 GMT",
"version": "v3"
}
] | 2022-01-26 | [
[
"Ho",
"Pei-Ming",
""
],
[
"Kawai",
"Hikaru",
""
],
[
"Yokokura",
"Yuki",
""
]
] | In the background of a gravitational collapse, we compute the transition amplitudes for the creation of particles for distant observers due to higher-derivative interactions in addition to Hawking radiation. The amplitudes grow exponentially with time and become of order 1 when the collapsing matter is about a Planck l... |
2406.11078 | Federico Ambrosino | Federico Ambrosino, Shota Komatsu | 2d QCD and Integrability, Part II: Generalized QCD | 60 pages | null | null | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We extend our study of integrable structures in large $N_c$ QCD$_2$ to a
broad class of theories called the generalized QCD, which are given by the
Lagrangian $\mathcal{L}\propto {\rm tr}\,B\wedge F- {\rm tr}\,V(B)$ coupled to
quarks in the fundamental representation. We recast the Bethe-Salpeter equation
for the mes... | [
{
"created": "Sun, 16 Jun 2024 21:16:54 GMT",
"version": "v1"
}
] | 2024-06-18 | [
[
"Ambrosino",
"Federico",
""
],
[
"Komatsu",
"Shota",
""
]
] | We extend our study of integrable structures in large $N_c$ QCD$_2$ to a broad class of theories called the generalized QCD, which are given by the Lagrangian $\mathcal{L}\propto {\rm tr}\,B\wedge F- {\rm tr}\,V(B)$ coupled to quarks in the fundamental representation. We recast the Bethe-Salpeter equation for the meson... |
1607.03053 | Mahmoud Safari | Mahmoud Safari and Gian Paolo Vacca | Covariant and single-field effective action with the background-field
formalism | 32 pages, latex; v2: added refs, short example in sec.3, and some
clarifications in the conclusions. To appear in PRD | Phys. Rev. D 96, 085001 (2017) | 10.1103/PhysRevD.96.085001 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the context of scalar quantum field theory we introduce a class of
generically nonlinear quantum-background splits for which the splitting Ward
identity, encoding the single field dependence in the effective action, can be
solved exactly. We show that this can be used to construct an effective action
which is both... | [
{
"created": "Mon, 11 Jul 2016 17:37:45 GMT",
"version": "v1"
},
{
"created": "Mon, 11 Sep 2017 17:55:53 GMT",
"version": "v2"
}
] | 2017-10-11 | [
[
"Safari",
"Mahmoud",
""
],
[
"Vacca",
"Gian Paolo",
""
]
] | In the context of scalar quantum field theory we introduce a class of generically nonlinear quantum-background splits for which the splitting Ward identity, encoding the single field dependence in the effective action, can be solved exactly. We show that this can be used to construct an effective action which is both c... |
2202.07767 | Umut Gursoy | Domingo Gallegos, Umut G\"ursoy, Natale Zinnato | From Feynman graphs to Witten diagrams | Contribution to "A Life in Mathematical Physics: Conference in Honour
of Tekin Dereli" (DERELI-FS-2021) | J.Phys.Conf.Ser. 2191 (2022) 10, 012012 | 10.1088/1742-6596/2191/1/012012 | null | hep-th | http://creativecommons.org/licenses/by/4.0/ | We investigate the possibility of generalizing Gopakumar's microscopic
derivation [1] of Witten diagrams in large N free quantum field theory to
interacting theories. For simplicity we consider a massless, matrix valued real
scalar field with $\Phi^h$ interaction in d-dimensions. Using Schwinger's
proper time formula... | [
{
"created": "Tue, 15 Feb 2022 22:35:51 GMT",
"version": "v1"
}
] | 2022-02-17 | [
[
"Gallegos",
"Domingo",
""
],
[
"Gürsoy",
"Umut",
""
],
[
"Zinnato",
"Natale",
""
]
] | We investigate the possibility of generalizing Gopakumar's microscopic derivation [1] of Witten diagrams in large N free quantum field theory to interacting theories. For simplicity we consider a massless, matrix valued real scalar field with $\Phi^h$ interaction in d-dimensions. Using Schwinger's proper time formulati... |
hep-th/0304006 | Danijel Jurman | Ivan Andric and Danijel Jurman | Duality and interacting families in models with the inverse-squared
interaction | 10 pages | null | 10.1016/S0375-9601(03)00751-5 | null | hep-th | null | Weak-strong coupling duality relations are shown to be present in the
quantum-mechanical many-body system with the interacting potential proportional
to the pair-wise inverse-squared distance in addition to the harmonic
potential. Using duality relations we have solved the problem of families
interacting by the inver... | [
{
"created": "Tue, 1 Apr 2003 17:00:49 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Andric",
"Ivan",
""
],
[
"Jurman",
"Danijel",
""
]
] | Weak-strong coupling duality relations are shown to be present in the quantum-mechanical many-body system with the interacting potential proportional to the pair-wise inverse-squared distance in addition to the harmonic potential. Using duality relations we have solved the problem of families interacting by the inverse... |
2407.11132 | Luca Ciambelli | Luca Ciambelli, Laurent Freidel, Robert G. Leigh | Quantum Null Geometry and Gravity | V1 | null | null | null | hep-th gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this work, we demonstrate that quantizing gravity on a null hypersurface
leads to the emergence of a CFT associated with each null ray. This result
stems from the ultralocal nature of null physics and is derived through a
canonical analysis of the Raychaudhuri equation, interpreted as a constraint
generating null ... | [
{
"created": "Mon, 15 Jul 2024 18:00:08 GMT",
"version": "v1"
}
] | 2024-07-17 | [
[
"Ciambelli",
"Luca",
""
],
[
"Freidel",
"Laurent",
""
],
[
"Leigh",
"Robert G.",
""
]
] | In this work, we demonstrate that quantizing gravity on a null hypersurface leads to the emergence of a CFT associated with each null ray. This result stems from the ultralocal nature of null physics and is derived through a canonical analysis of the Raychaudhuri equation, interpreted as a constraint generating null ti... |
0905.1976 | Luis Granda | L. N. Granda, A. Oliveros and W. Cardona | Age problem in holographic dark energy | 13 pages | Mod.Phys.Lett.A25:1625-1634,2010 | 10.1142/S0217732310032834 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the age problem of the universe with the holographic DE model
introduced in [21], and test the model with some known old high redshift
objects (OHRO). The parameters of the model have been constrained using the
SNIa, CMB and BAO data set. We found that the age of the old quasar APM 08
279+5255 at z = 3.91 ca... | [
{
"created": "Tue, 12 May 2009 22:11:39 GMT",
"version": "v1"
}
] | 2014-11-18 | [
[
"Granda",
"L. N.",
""
],
[
"Oliveros",
"A.",
""
],
[
"Cardona",
"W.",
""
]
] | We study the age problem of the universe with the holographic DE model introduced in [21], and test the model with some known old high redshift objects (OHRO). The parameters of the model have been constrained using the SNIa, CMB and BAO data set. We found that the age of the old quasar APM 08 279+5255 at z = 3.91 can ... |
hep-th/0602181 | Anzor Khelashvili | Tamari~T. Khachidze and Anzor~A. Khelashvili | Supercharge Operator of Hidden Symmetry in the Dirac Equation | 3 pages | GESJ Phys.1:88-97,2006; AIP Conf.Proc.881:279-284,2007 | 10.1063/1.2435304 | null | hep-th | null | As is known, the so-called Dirac $K$-operator commutes with the Dirac
Hamiltonian for arbitrary central potential $V(r)$. Therefore the spectrum is
degenerate with respect to two signs of its eigenvalues. This degeneracy may be
described by some operator, which anticommutes with $K$. If this operator
commutes with th... | [
{
"created": "Sat, 18 Feb 2006 13:11:47 GMT",
"version": "v1"
}
] | 2009-01-16 | [
[
"Khachidze",
"Tamari~T.",
""
],
[
"Khelashvili",
"Anzor~A.",
""
]
] | As is known, the so-called Dirac $K$-operator commutes with the Dirac Hamiltonian for arbitrary central potential $V(r)$. Therefore the spectrum is degenerate with respect to two signs of its eigenvalues. This degeneracy may be described by some operator, which anticommutes with $K$. If this operator commutes with the ... |
1903.08264 | Nathan Berkovits | Nathan Berkovits (ICTP-SAIFR/IFT-UNESP, S\~ao Paulo) | Sketching a Proof of the Maldacena Conjecture at Small Radius | 17 pages with 2 figures. Added references | null | null | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | At small AdS radius, the superstring on $AdS_5\times S^5$ was conjectured by
Maldacena to be equivalent to ${\cal N}=4$ super-Yang-Mills at small `t Hooft
coupling where thickened Feynman diagrams can be used to compute scattering
amplitudes. It was previously shown that the pure spinor worldsheet action of
the $AdS_... | [
{
"created": "Tue, 19 Mar 2019 21:41:03 GMT",
"version": "v1"
},
{
"created": "Sat, 27 Apr 2019 18:23:22 GMT",
"version": "v2"
}
] | 2019-04-30 | [
[
"Berkovits",
"Nathan",
"",
"ICTP-SAIFR/IFT-UNESP, São Paulo"
]
] | At small AdS radius, the superstring on $AdS_5\times S^5$ was conjectured by Maldacena to be equivalent to ${\cal N}=4$ super-Yang-Mills at small `t Hooft coupling where thickened Feynman diagrams can be used to compute scattering amplitudes. It was previously shown that the pure spinor worldsheet action of the $AdS_5\... |
1610.05797 | Akash Jain | Akash Jain | A theory for non-Abelian superfluid dynamics | 5+1 pages, no figures | Phys. Rev. D 95, 121701 (2017) | 10.1103/PhysRevD.95.121701 | DCPT-16/41 | hep-th cond-mat.stat-mech physics.flu-dyn | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We write down a theory for non-Abelian superfluids with a partially broken
(semisimple) Lie group. We adapt the offshell formalism of hydrodynamics to
superfluids and use it to comment on the superfluid transport compatible with
the second law of thermodynamics. We find that the second law can be also used
to derive ... | [
{
"created": "Tue, 18 Oct 2016 20:53:27 GMT",
"version": "v1"
}
] | 2017-06-21 | [
[
"Jain",
"Akash",
""
]
] | We write down a theory for non-Abelian superfluids with a partially broken (semisimple) Lie group. We adapt the offshell formalism of hydrodynamics to superfluids and use it to comment on the superfluid transport compatible with the second law of thermodynamics. We find that the second law can be also used to derive th... |
2111.04747 | Connor Behan | Connor Behan, Lorenzo Di Pietro, Edoardo Lauria, Balt C. van Rees | Bootstrapping boundary-localized interactions II: Minimal models at the
boundary | 45 pages, 10 figures; v2: published version | null | 10.1007/JHEP03(2022)146 | null | hep-th cond-mat.str-el | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We provide evidence for the existence of non-trivial unitary conformal
boundary conditions for a three-dimensional free scalar field, which can be
obtained via a coupling to the m'th unitary diagonal minimal model. For large m
we can demonstrate the existence of the fixed point perturbatively, and for
smaller values ... | [
{
"created": "Mon, 8 Nov 2021 19:00:01 GMT",
"version": "v1"
},
{
"created": "Sun, 6 Mar 2022 15:26:34 GMT",
"version": "v2"
}
] | 2022-03-24 | [
[
"Behan",
"Connor",
""
],
[
"Di Pietro",
"Lorenzo",
""
],
[
"Lauria",
"Edoardo",
""
],
[
"van Rees",
"Balt C.",
""
]
] | We provide evidence for the existence of non-trivial unitary conformal boundary conditions for a three-dimensional free scalar field, which can be obtained via a coupling to the m'th unitary diagonal minimal model. For large m we can demonstrate the existence of the fixed point perturbatively, and for smaller values we... |
1712.07583 | Shao-Jun Zhang | Shao-Jun Zhang | Complexity and phase transitions in a holographic QCD model | v1: 14 pages, 2 figures; v2: refs added, minor modifications. arXiv
admin note: substantial text overlap with arXiv:1608.03072; v3: More details
on the Lloyd's bound, matching the published version | Nucl. Phys. B 929, 243(2018) | 10.1016/j.nuclphysb.2018.02.010 | null | hep-th gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Applying the "Complexity=Action" conjecture, we study the holographic
complexity close to crossover/phase transition in a holographic QCD model
proposed by Gubser et al. This model can realize three types of phase
transition, crossover or first and second order, depending on the parameters of
the dilaton potential. T... | [
{
"created": "Tue, 19 Dec 2017 01:28:09 GMT",
"version": "v1"
},
{
"created": "Tue, 26 Dec 2017 00:57:26 GMT",
"version": "v2"
},
{
"created": "Mon, 26 Feb 2018 05:54:48 GMT",
"version": "v3"
}
] | 2018-02-27 | [
[
"Zhang",
"Shao-Jun",
""
]
] | Applying the "Complexity=Action" conjecture, we study the holographic complexity close to crossover/phase transition in a holographic QCD model proposed by Gubser et al. This model can realize three types of phase transition, crossover or first and second order, depending on the parameters of the dilaton potential. The... |
0802.0868 | Pierre Vanhove | N. E. J. Bjerrum-Bohr and Pierre Vanhove | Explicit Cancellation of Triangles in One-loop Gravity Amplitudes | 25 pages. 2 eps pictures, harvmac format. v2: version to appear in
JHEP. Equations (3.9), (3.12) and minor typos corrected | JHEP0804:065,2008 | 10.1088/1126-6708/2008/04/065 | null | hep-th | null | We analyse one-loop graviton amplitudes in the field theory limit of a
genus-one string theory computation. The considered amplitudes can be
dimensionally reduced to lower dimensions preserving maximal supersymmetry. The
particular case of the one-loop five-graviton amplitude is worked out in detail
and explicitly fe... | [
{
"created": "Wed, 6 Feb 2008 20:46:31 GMT",
"version": "v1"
},
{
"created": "Mon, 14 Apr 2008 17:05:07 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Bjerrum-Bohr",
"N. E. J.",
""
],
[
"Vanhove",
"Pierre",
""
]
] | We analyse one-loop graviton amplitudes in the field theory limit of a genus-one string theory computation. The considered amplitudes can be dimensionally reduced to lower dimensions preserving maximal supersymmetry. The particular case of the one-loop five-graviton amplitude is worked out in detail and explicitly feat... |
1510.01667 | Anirban Basu | Anirban Basu | Perturbative type II amplitudes for BPS interactions | 33 pages, LaTeX, 2 figures | null | 10.1088/0264-9381/33/4/045002 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider the perturbative contributions to the R^4, D^4 R^4 and D^6 R^4
interactions in toroidally compactified type II string theory. These BPS
interactions do not receive perturbative contributions beyond genus three. We
derive Poisson equations satisfied by these moduli dependent string amplitudes.
These T--dua... | [
{
"created": "Tue, 6 Oct 2015 17:03:00 GMT",
"version": "v1"
},
{
"created": "Wed, 20 Jan 2016 15:59:00 GMT",
"version": "v2"
}
] | 2016-01-27 | [
[
"Basu",
"Anirban",
""
]
] | We consider the perturbative contributions to the R^4, D^4 R^4 and D^6 R^4 interactions in toroidally compactified type II string theory. These BPS interactions do not receive perturbative contributions beyond genus three. We derive Poisson equations satisfied by these moduli dependent string amplitudes. These T--duali... |
hep-th/0211115 | Shesansu Sekhar Pal | Shesansu Sekhar Pal, Sudhakar Panda | Coincident Dp-branes in codimension two | 10 pages, Latex, modified and references added | null | null | null | hep-th | null | We derive the mass shell condition for N coincident D0 branes in codimension
two i.e. in space-time dimension three. Using this we present the action for
this system in first order formalism. Our analysis is restricted to flat
space-time.
| [
{
"created": "Wed, 13 Nov 2002 10:48:00 GMT",
"version": "v1"
},
{
"created": "Sat, 23 Nov 2002 16:47:34 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Pal",
"Shesansu Sekhar",
""
],
[
"Panda",
"Sudhakar",
""
]
] | We derive the mass shell condition for N coincident D0 branes in codimension two i.e. in space-time dimension three. Using this we present the action for this system in first order formalism. Our analysis is restricted to flat space-time. |
1801.09983 | Florian Niedermann | Florian Niedermann, Paul M. Saffin | Rotating kinky braneworlds | 28 pages, 7 figures, matches the version published in JHEP | JHEP07(2018)183 | 10.1007/JHEP07(2018)183 | null | hep-th gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Cylindrical braneworlds have been used in the literature as a convenient way
to resolve co-dimension-two branes. They are prevented from collapsing by a
massless worldvolume field with non-trivial winding, but here we discuss
another way of preventing collapse, which is to rotate the brane. We use a
simple microscopi... | [
{
"created": "Tue, 30 Jan 2018 13:52:43 GMT",
"version": "v1"
},
{
"created": "Wed, 1 Aug 2018 12:31:57 GMT",
"version": "v2"
}
] | 2018-08-02 | [
[
"Niedermann",
"Florian",
""
],
[
"Saffin",
"Paul M.",
""
]
] | Cylindrical braneworlds have been used in the literature as a convenient way to resolve co-dimension-two branes. They are prevented from collapsing by a massless worldvolume field with non-trivial winding, but here we discuss another way of preventing collapse, which is to rotate the brane. We use a simple microscopic ... |
hep-th/0510035 | Ryu Sasaki | R. Sasaki, K. Takasaki | Explicit solutions of the classical Calogero & Sutherland systems for
any root system | 18 pages, LaTeX, no figure | J.Math.Phys. 47 (2006) 012701 | 10.1063/1.2162334 | YITP-05-60 | hep-th math-ph math.MP math.QA nlin.SI | null | Explicit solutions of the classical Calogero (rational with/without harmonic
confining potential) and Sutherland (trigonometric potential) systems is
obtained by diagonalisation of certain matrices of simple time evolution. The
method works for Calogero & Sutherland systems based on any root system. It
generalises th... | [
{
"created": "Wed, 5 Oct 2005 06:28:20 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Sasaki",
"R.",
""
],
[
"Takasaki",
"K.",
""
]
] | Explicit solutions of the classical Calogero (rational with/without harmonic confining potential) and Sutherland (trigonometric potential) systems is obtained by diagonalisation of certain matrices of simple time evolution. The method works for Calogero & Sutherland systems based on any root system. It generalises the ... |
2003.09601 | Eugene Loginov | E.K. Loginov | Octonionic instantons in eight dimensions | 16 pages, LaTeX, no figures | Phys. Lett. B 816 (2021) 136244 | 10.1016/j.physletb.2021.136244 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this letter, we study the instanton moduli space of the eight-dimensional
solutions of the self-duality equation $F\wedge F= \ast F\wedge F$. Using the
known ADHM-construction of such instantons, we compute the dimension of the
space of solutions to this construction. We find a general $N$-instanton
solution of th... | [
{
"created": "Sat, 21 Mar 2020 07:48:57 GMT",
"version": "v1"
},
{
"created": "Sun, 3 May 2020 19:02:09 GMT",
"version": "v2"
},
{
"created": "Mon, 29 Mar 2021 20:06:33 GMT",
"version": "v3"
}
] | 2021-03-31 | [
[
"Loginov",
"E. K.",
""
]
] | In this letter, we study the instanton moduli space of the eight-dimensional solutions of the self-duality equation $F\wedge F= \ast F\wedge F$. Using the known ADHM-construction of such instantons, we compute the dimension of the space of solutions to this construction. We find a general $N$-instanton solution of the ... |
hep-th/0008129 | Burinskii A. Ya. | Alexander Burinskii | Supersymmetric Superconducting Bag as a Core of Kerr Spinning Particle | 28 pages, Latex, v.5, some factors in Morris model, text in
subsection 4.3.2 and one reference are corrected | Grav.Cosmol. 8 (2002) 261-271 | null | null | hep-th gr-qc hep-ph | null | The problem of a regular matter source for the Kerr spinning particle is
discussed. A class of minimal deformations of the Kerr-Newman solution is
considered obeying the conditions of regularity and smoothness for the metric
and its matter source.
It is shown that for charged source corresponding matter forms a rot... | [
{
"created": "Wed, 16 Aug 2000 13:39:04 GMT",
"version": "v1"
},
{
"created": "Tue, 22 Aug 2000 13:01:01 GMT",
"version": "v2"
},
{
"created": "Fri, 15 Sep 2000 14:15:43 GMT",
"version": "v3"
},
{
"created": "Tue, 19 Sep 2000 13:09:00 GMT",
"version": "v4"
},
{
"c... | 2007-05-23 | [
[
"Burinskii",
"Alexander",
""
]
] | The problem of a regular matter source for the Kerr spinning particle is discussed. A class of minimal deformations of the Kerr-Newman solution is considered obeying the conditions of regularity and smoothness for the metric and its matter source. It is shown that for charged source corresponding matter forms a rotatin... |
1805.11929 | Yakov Shnir | V. Loiko, I. Perapechka and Ya. Shnir | Q-balls without a potential | 15 pages, 8 figures, minor corrections, a reference is added | Phys. Rev. D 98, 045018 (2018) | 10.1103/PhysRevD.98.045018 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study non-topological Q-ball solutions of the (3+1)-dimensional
Friedberg-Lee-Sirlin two-component model. The limiting case of vanishing
potential term yields an example of hairy Q-balls, which possess a long range
massless real field. We discuss the properties of these stationary field
configurations and determin... | [
{
"created": "Wed, 30 May 2018 13:02:49 GMT",
"version": "v1"
},
{
"created": "Sat, 2 Jun 2018 07:47:13 GMT",
"version": "v2"
}
] | 2018-09-12 | [
[
"Loiko",
"V.",
""
],
[
"Perapechka",
"I.",
""
],
[
"Shnir",
"Ya.",
""
]
] | We study non-topological Q-ball solutions of the (3+1)-dimensional Friedberg-Lee-Sirlin two-component model. The limiting case of vanishing potential term yields an example of hairy Q-balls, which possess a long range massless real field. We discuss the properties of these stationary field configurations and determine ... |
hep-th/9703038 | Yuri Makeenko | A. Fayyazuddin, Y. Makeenko, P. Olesen, D.J. Smith, K. Zarembo | Towards a Non-perturbative Formulation of IIB Superstrings by Matrix
Models | 23pp., Latex; final version to be published in Nucl. Phys. B | Nucl.Phys. B499 (1997) 159-182 | 10.1016/S0550-3213(97)00321-0 | NBI-HE-97-09, ITEP-TH-09/97 | hep-th | null | We address the problem of a non-perturbative formulation of superstring
theory by means of the recently proposed matrix models. For the model by
Ishibashi, Kawai, Kitazawa and Tsuchiya (IKKT), we perform one-loop calculation
of the interaction between operator-like solutions identified with D-brane
configurations of ... | [
{
"created": "Wed, 5 Mar 1997 20:45:30 GMT",
"version": "v1"
},
{
"created": "Fri, 14 Mar 1997 14:56:35 GMT",
"version": "v2"
},
{
"created": "Fri, 4 Apr 1997 16:48:32 GMT",
"version": "v3"
},
{
"created": "Tue, 20 May 1997 08:48:37 GMT",
"version": "v4"
}
] | 2009-10-30 | [
[
"Fayyazuddin",
"A.",
""
],
[
"Makeenko",
"Y.",
""
],
[
"Olesen",
"P.",
""
],
[
"Smith",
"D. J.",
""
],
[
"Zarembo",
"K.",
""
]
] | We address the problem of a non-perturbative formulation of superstring theory by means of the recently proposed matrix models. For the model by Ishibashi, Kawai, Kitazawa and Tsuchiya (IKKT), we perform one-loop calculation of the interaction between operator-like solutions identified with D-brane configurations of ty... |
hep-th/0602037 | Thomas D. Cohen | Thomas D. Cohen | QCD strings and the thermodynamics of the metastable phase of QCD at
large $N_c$ | After this paper was published, the author became aware of an
important early paper by Charles Thorn on the subject of the QCD phase
transition at large N_c and its relation to the Hagedorn spectrum. Given the
pioneering nature of Thorn's paper, and the fact that it is not as widely
known as it should be, it is... | Phys.Lett. B637 (2006) 81-84 | 10.1016/j.physletb.2006.04.035 | null | hep-th hep-lat hep-ph nucl-th | null | The thermodyanmics of a metastable hadronic phase of QCD at large $N_C$ are
related to properties of an effective QCD string. In particular, it is shown
that in the large $N_c$ limit and near the maximum hadronic temperature, $T_H$,
the energy density and pressure of the metastable phase scale as ${\cal E} \sim
(T_H-... | [
{
"created": "Fri, 3 Feb 2006 17:58:40 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Sep 2006 12:19:31 GMT",
"version": "v2"
}
] | 2009-11-11 | [
[
"Cohen",
"Thomas D.",
""
]
] | The thermodyanmics of a metastable hadronic phase of QCD at large $N_C$ are related to properties of an effective QCD string. In particular, it is shown that in the large $N_c$ limit and near the maximum hadronic temperature, $T_H$, the energy density and pressure of the metastable phase scale as ${\cal E} \sim (T_H-T)... |
1109.5954 | Vladimir Belokurov V | V.V. Belokurov and E.T. Shavgulidze | On the local limit of quantum field theories defined on the loop space | null | null | null | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The local limit of a quantum field theory on the loop space is studied. It is
proved that the invariance of the theory with respect to the group of
diffeomorphisms leads to Feynman diagrams convergence in the local limit.
| [
{
"created": "Tue, 27 Sep 2011 16:12:41 GMT",
"version": "v1"
}
] | 2011-09-28 | [
[
"Belokurov",
"V. V.",
""
],
[
"Shavgulidze",
"E. T.",
""
]
] | The local limit of a quantum field theory on the loop space is studied. It is proved that the invariance of the theory with respect to the group of diffeomorphisms leads to Feynman diagrams convergence in the local limit. |
1806.05170 | Felipe Rosso | Clifford V. Johnson and Felipe Rosso | Holographic Heat Engines, Entanglement Entropy, and Renormalization
Group Flow | 23 pages, 4 figures (v3: updated to match published version.) | Class.Quant.Grav. 36 (2019) 015019 | 10.1088/1361-6382/aaf1f1 | null | hep-th gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We explore a fruitful connection between the physics of conformal field
theories (CFTs) in d-dimensional Minkowski spacetime and the extended
gravitational thermodynamics of hyperbolic black holes in (d+1)-dimensional
anti-de Sitter spacetime. The CFTs are reduced on a region bounded by a sphere.
We show that Renorma... | [
{
"created": "Wed, 13 Jun 2018 17:58:44 GMT",
"version": "v1"
},
{
"created": "Tue, 26 Jun 2018 14:20:57 GMT",
"version": "v2"
},
{
"created": "Mon, 17 Dec 2018 19:57:42 GMT",
"version": "v3"
}
] | 2018-12-19 | [
[
"Johnson",
"Clifford V.",
""
],
[
"Rosso",
"Felipe",
""
]
] | We explore a fruitful connection between the physics of conformal field theories (CFTs) in d-dimensional Minkowski spacetime and the extended gravitational thermodynamics of hyperbolic black holes in (d+1)-dimensional anti-de Sitter spacetime. The CFTs are reduced on a region bounded by a sphere. We show that Renormali... |
2105.11567 | Federico Bonetti | Ibrahima Bah, Federico Bonetti, Ruben Minasian, and Emily Nardoni | Holographic Duals of Argyres-Douglas Theories | 4 pages, 1 figure; references added, typos fixed | null | 10.1103/PhysRevLett.127.211601 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present new $AdS_5$ solutions in 11d supergravity and identify them as the
gravity duals of a class of 4d $\mathcal N = 2$ SCFTs of Argyres-Douglas type,
engineered by a stack of M5-branes wrapped on a sphere with one irregular
puncture and one regular puncture. The gravity solutions feature an internal
M5-brane s... | [
{
"created": "Mon, 24 May 2021 23:02:25 GMT",
"version": "v1"
},
{
"created": "Tue, 4 Jan 2022 14:26:26 GMT",
"version": "v2"
}
] | 2022-01-05 | [
[
"Bah",
"Ibrahima",
""
],
[
"Bonetti",
"Federico",
""
],
[
"Minasian",
"Ruben",
""
],
[
"Nardoni",
"Emily",
""
]
] | We present new $AdS_5$ solutions in 11d supergravity and identify them as the gravity duals of a class of 4d $\mathcal N = 2$ SCFTs of Argyres-Douglas type, engineered by a stack of M5-branes wrapped on a sphere with one irregular puncture and one regular puncture. The gravity solutions feature an internal M5-brane sou... |
hep-th/9704086 | Edi Halyo | Edi Halyo | A Proposal for the Wrapped Transverse Five Brane in M(atrix) Theory | 7 pages in phyzzx | null | null | null | hep-th | null | We propose a state in 5+1 super Yang-Mills theory which corresponds to the
wrapped transverse five brane of M(atrix) theory on $T^5$. This state is a
magnetic flux quantized in units of $1/g_6^2$ through a plane defined by one
side of the box and a new direction which is not manifest.
| [
{
"created": "Thu, 10 Apr 1997 20:30:47 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Halyo",
"Edi",
""
]
] | We propose a state in 5+1 super Yang-Mills theory which corresponds to the wrapped transverse five brane of M(atrix) theory on $T^5$. This state is a magnetic flux quantized in units of $1/g_6^2$ through a plane defined by one side of the box and a new direction which is not manifest. |
2110.11260 | Bibhas Majhi Ranjan | Pratyusha Chowdhury, Bibhas Ranjan Majhi | Fate of entanglement between two Unruh-DeWitt detectors due to their
motion and background temperature | New comments added, to appear in JHEP | null | 10.1007/JHEP05(2022)025 | null | hep-th gr-qc quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the fate of initial entanglement between two accelerated
detectors with respect to an observer attached to one of the detectors. Both
$(1+1)$ and $(1+3)$ spacetime dimensions are being considered here, with the
detectors interacting with real massless scalar fields through monopole terms.
The investiga... | [
{
"created": "Thu, 21 Oct 2021 16:42:52 GMT",
"version": "v1"
},
{
"created": "Wed, 13 Apr 2022 10:24:50 GMT",
"version": "v2"
}
] | 2022-05-25 | [
[
"Chowdhury",
"Pratyusha",
""
],
[
"Majhi",
"Bibhas Ranjan",
""
]
] | We investigate the fate of initial entanglement between two accelerated detectors with respect to an observer attached to one of the detectors. Both $(1+1)$ and $(1+3)$ spacetime dimensions are being considered here, with the detectors interacting with real massless scalar fields through monopole terms. The investigati... |
1508.06278 | Lorenzo Di Pietro | Lorenzo Di Pietro, Zohar Komargodski, Itamar Shamir, Emmanuel Stamou | Quantum Electrodynamics in d=3 from the epsilon-expansion | 6 pages, 3 figures. v2: references added, minor corrections | Phys. Rev. Lett. 116, 131601 (2016) | 10.1103/PhysRevLett.116.131601 | null | hep-th cond-mat.str-el | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study Quantum Electrodynamics in d=3 (QED_3) coupled to N_f flavors of
fermions. The theory flows to an IR fixed point for N_f larger than some
critical number N_f^c. For N_f<= N_f^c, chiral-symmetry breaking is believed to
take place. In analogy with the Wilson-Fisher description of the critical O(N)
models in d=... | [
{
"created": "Tue, 25 Aug 2015 20:07:53 GMT",
"version": "v1"
},
{
"created": "Fri, 25 Sep 2015 14:19:24 GMT",
"version": "v2"
}
] | 2016-04-06 | [
[
"Di Pietro",
"Lorenzo",
""
],
[
"Komargodski",
"Zohar",
""
],
[
"Shamir",
"Itamar",
""
],
[
"Stamou",
"Emmanuel",
""
]
] | We study Quantum Electrodynamics in d=3 (QED_3) coupled to N_f flavors of fermions. The theory flows to an IR fixed point for N_f larger than some critical number N_f^c. For N_f<= N_f^c, chiral-symmetry breaking is believed to take place. In analogy with the Wilson-Fisher description of the critical O(N) models in d=3,... |
2106.00686 | Mario Martone | Mario Martone and Gabi Zafrir | On the compactification of 5d theories to 4d | 60 pages, 9 figures, 7 tables | null | 10.1007/JHEP08(2021)017 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study general properties of the mapping between 5$d$ and 4$d$
superconformal field theories (SCFTs) under both twisted circle
compactification and tuning of local relevant deformation and CB moduli. After
elucidating in generality when a 5$d$ SCFT reduces to a 4$d$ one, we identify
nearly all $\mathcal{N}=1$ 5$d$ ... | [
{
"created": "Tue, 1 Jun 2021 18:00:02 GMT",
"version": "v1"
}
] | 2021-09-01 | [
[
"Martone",
"Mario",
""
],
[
"Zafrir",
"Gabi",
""
]
] | We study general properties of the mapping between 5$d$ and 4$d$ superconformal field theories (SCFTs) under both twisted circle compactification and tuning of local relevant deformation and CB moduli. After elucidating in generality when a 5$d$ SCFT reduces to a 4$d$ one, we identify nearly all $\mathcal{N}=1$ 5$d$ SC... |
0707.3166 | Sannino Francesco | Thomas A. Ryttov and Francesco Sannino (CERN, Bohr Institute and
University of Southern Denmark) | Conformal Windows of SU(N) Gauge Theories, Higher Dimensional
Representations and The Size of The Unparticle World | RevTeX, 18 pages, 2 figures | Phys.Rev.D76:105004,2007 | 10.1103/PhysRevD.76.105004 | CERN-PH-TH/2007-123 | hep-th hep-lat hep-ph | null | We present the conformal windows of SU(N) supersymmetric and
nonsupersymmetric gauge theories with vector-like matter transforming according
to higher irreducible representations of the gauge group. We determine the
fraction of asymptotically free theories expected to develop an infrared fixed
point and find that it ... | [
{
"created": "Sun, 22 Jul 2007 16:49:00 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Ryttov",
"Thomas A.",
"",
"CERN, Bohr Institute and\n University of Southern Denmark"
],
[
"Sannino",
"Francesco",
"",
"CERN, Bohr Institute and\n University of Southern Denmark"
]
] | We present the conformal windows of SU(N) supersymmetric and nonsupersymmetric gauge theories with vector-like matter transforming according to higher irreducible representations of the gauge group. We determine the fraction of asymptotically free theories expected to develop an infrared fixed point and find that it do... |
hep-th/9602010 | Ashoke Sen | Ashoke Sen | M-Theory on (K3 X S^1)/Z_2 | LaTeX file, 11 pages | Phys.Rev.D53:6725-6729,1996 | 10.1103/PhysRevD.53.R6725 | MRI-PHY/07/96 | hep-th | null | We analyze $M$-theory compactified on $(K3\times S^1)/Z_2$ where the $Z_2$
changes the sign of the three form gauge field, acts on $S^1$ as a parity
transformation and on K3 as an involution with eight fixed points preserving
SU(2) holonomy. At a generic point in the moduli space the resulting theory has
as its low e... | [
{
"created": "Sun, 4 Feb 1996 00:17:26 GMT",
"version": "v1"
}
] | 2009-09-15 | [
[
"Sen",
"Ashoke",
""
]
] | We analyze $M$-theory compactified on $(K3\times S^1)/Z_2$ where the $Z_2$ changes the sign of the three form gauge field, acts on $S^1$ as a parity transformation and on K3 as an involution with eight fixed points preserving SU(2) holonomy. At a generic point in the moduli space the resulting theory has as its low ene... |
1310.6659 | Joan Camps | Joan Camps | Generalized entropy and higher derivative Gravity | v4: further sign corrections in sec 2, main conclusions unaltered.
Added comments comparing to Iyer-Wald's in section 5. Version to appear in
JHEP | null | 10.1007/JHEP03(2014)070 | null | hep-th gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We derive an extension of the Ryu-Takayanagi prescription for curvature
squared theories of gravity in the bulk, and comment on a prescription for more
general theories. This results in a new entangling functional, that contains a
correction to Wald's entropy. The new term is quadratic in the extrinsic
curvature. The... | [
{
"created": "Thu, 24 Oct 2013 16:29:19 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Oct 2013 17:04:42 GMT",
"version": "v2"
},
{
"created": "Fri, 1 Nov 2013 10:44:55 GMT",
"version": "v3"
},
{
"created": "Tue, 25 Feb 2014 13:00:45 GMT",
"version": "v4"
}
] | 2015-06-17 | [
[
"Camps",
"Joan",
""
]
] | We derive an extension of the Ryu-Takayanagi prescription for curvature squared theories of gravity in the bulk, and comment on a prescription for more general theories. This results in a new entangling functional, that contains a correction to Wald's entropy. The new term is quadratic in the extrinsic curvature. The c... |
hep-th/9311069 | null | M. Ruiz--Altaba | Quantum Groups | 37 pages, plain.tex | null | 10.1063/1.46853 | UGVA-DPT-10-838 | hep-th cond-mat hep-ph nlin.SI solv-int | null | These notes correspond rather accurately to the translation of the lectures
given at the Fifth Mexican School of Particles and Fields, held in Guanajuato,
Gto., in December~1992. They constitute a brief and elementary introduction to
quantum symmetries from a physical point of view, along the lines of the
forthcoming... | [
{
"created": "Thu, 11 Nov 1993 15:39:07 GMT",
"version": "v1"
}
] | 2015-06-26 | [
[
"Ruiz--Altaba",
"M.",
""
]
] | These notes correspond rather accurately to the translation of the lectures given at the Fifth Mexican School of Particles and Fields, held in Guanajuato, Gto., in December~1992. They constitute a brief and elementary introduction to quantum symmetries from a physical point of view, along the lines of the forthcoming b... |
hep-th/0511102 | Archil Kobakhidze | R. Holman and L. Mersini-Houghton | Why the Universe Started from a Low Entropy State | 12 pages, 2 figs. Final version; agrees with accepted version in
Phys. Rev. D | Phys.Rev.D74:123510,2006 | 10.1103/PhysRevD.74.123510 | null | hep-th astro-ph gr-qc hep-ph | null | We show that the inclusion of backreaction of massive long wavelengths
imposes dynamical constraints on the allowed phase space of initial conditions
for inflation, which results in a superselection rule for the initial
conditions. Only high energy inflation is stable against collapse due to the
gravitational instabi... | [
{
"created": "Wed, 9 Nov 2005 19:36:40 GMT",
"version": "v1"
},
{
"created": "Tue, 12 Sep 2006 15:20:24 GMT",
"version": "v2"
},
{
"created": "Mon, 11 Dec 2006 00:34:14 GMT",
"version": "v3"
}
] | 2008-11-26 | [
[
"Holman",
"R.",
""
],
[
"Mersini-Houghton",
"L.",
""
]
] | We show that the inclusion of backreaction of massive long wavelengths imposes dynamical constraints on the allowed phase space of initial conditions for inflation, which results in a superselection rule for the initial conditions. Only high energy inflation is stable against collapse due to the gravitational instabili... |
hep-th/0108130 | A. B. Balantekin | A.B. Balantekin (Heidelberg, Max Planck Inst. and Wisconsin U.,
Madison) and P. Cassak (Wisconsin U., Madison) | Character Expansions for the Orthogonal and Symplectic Groups | 20 pages, in REVTEX | J.Math.Phys. 43 (2002) 604-620 | 10.1063/1.1418014 | null | hep-th nucl-th | null | Formulas for the expansion of arbitrary invariant group functions in terms of
the characters for the Sp(2N), SO(2N+1), and SO(2N) groups are derived using a
combinatorial method. The method is similar to one used by Balantekin to expand
group functions over the characters of the U(N) group. All three expansions
have ... | [
{
"created": "Fri, 17 Aug 2001 17:04:09 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Balantekin",
"A. B.",
"",
"Heidelberg, Max Planck Inst. and Wisconsin U.,\n Madison"
],
[
"Cassak",
"P.",
"",
"Wisconsin U., Madison"
]
] | Formulas for the expansion of arbitrary invariant group functions in terms of the characters for the Sp(2N), SO(2N+1), and SO(2N) groups are derived using a combinatorial method. The method is similar to one used by Balantekin to expand group functions over the characters of the U(N) group. All three expansions have be... |
hep-th/0112139 | Valentin V. Khoze | Chong-Sun Chu, Valentin V. Khoze and Gabriele Travaglini | Noncommutativity and Model Building | 8 pages, v2: equation (26) corrected, a comment and references added;
v3: add comments about anomaly cancellation; stressing main technical
achievement is the construction of matters in arbitrary representations of
noncommutative U(N) | Phys.Lett. B543 (2002) 318-322 | 10.1016/S0370-2693(02)02234-7 | null | hep-th hep-ph | null | We propose a way to introduce matter fields transforming in arbitrary
representations of the gauge group in noncommutative U(N) gauge theories. We
then argue that in the presence of supersymmetry, an ordinary commutative SU(N)
gauge theory with a general matter content can always be embedded into a
noncommutative U(N... | [
{
"created": "Mon, 17 Dec 2001 12:11:47 GMT",
"version": "v1"
},
{
"created": "Mon, 4 Feb 2002 16:23:58 GMT",
"version": "v2"
},
{
"created": "Wed, 24 Apr 2002 10:54:41 GMT",
"version": "v3"
}
] | 2010-04-05 | [
[
"Chu",
"Chong-Sun",
""
],
[
"Khoze",
"Valentin V.",
""
],
[
"Travaglini",
"Gabriele",
""
]
] | We propose a way to introduce matter fields transforming in arbitrary representations of the gauge group in noncommutative U(N) gauge theories. We then argue that in the presence of supersymmetry, an ordinary commutative SU(N) gauge theory with a general matter content can always be embedded into a noncommutative U(N) ... |
0910.5178 | Andrey Bytsenko A | A. A. Bytsenko | Global anomaly and a family of structures on fold product of complex
two-cycles | 7 pages, no figures. To appear in the Proceedings of XXVIII Workshop
on Geometrical Methods in Physics, Bialowieza (Poland), 28.06 - 04.07.2009 | null | null | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose a new set of IIB type and eleven-dimensional supergravity
solutions which consists of the $n$-fold product of two-spaces ${\bf
H}^n/\Gamma$ (where ${\bf H}^n$ denotes the product of $n$ upper half-planes
$H^2$ equipped with the co-compact action of $\Gamma \subset SL(2, {\mathbb
R})^n$) and $({\bf H}^n)^*/... | [
{
"created": "Tue, 27 Oct 2009 17:06:16 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Bytsenko",
"A. A.",
""
]
] | We propose a new set of IIB type and eleven-dimensional supergravity solutions which consists of the $n$-fold product of two-spaces ${\bf H}^n/\Gamma$ (where ${\bf H}^n$ denotes the product of $n$ upper half-planes $H^2$ equipped with the co-compact action of $\Gamma \subset SL(2, {\mathbb R})^n$) and $({\bf H}^n)^*/\G... |
2106.12635 | Herbert Neuberger | Herbert Neuberger | Deconstructing finite temperature pure gauge theory | null | null | null | null | hep-th hep-lat hep-ph | http://creativecommons.org/licenses/by/4.0/ | A deconstructed finite temperature gauge theory has the Euclidean time
direction kept discrete and finite. The ultraviolet behavior is that of one
dimension less than at zero temperature. One can add to the action a gauge
invariant term dependent on Polyakov loops, without worrying about nonlocality.
The deformation ... | [
{
"created": "Wed, 23 Jun 2021 19:17:45 GMT",
"version": "v1"
}
] | 2021-06-25 | [
[
"Neuberger",
"Herbert",
""
]
] | A deconstructed finite temperature gauge theory has the Euclidean time direction kept discrete and finite. The ultraviolet behavior is that of one dimension less than at zero temperature. One can add to the action a gauge invariant term dependent on Polyakov loops, without worrying about nonlocality. The deformation of... |
1403.6646 | Sanjaye Ramgoolam | Robert de Mello Koch, Sanjaye Ramgoolam | CFT4 as SO(4,2)-invariant TFT2 | 54 pages, 7 figures; version 2: Published version - extended
discussion of CFT4/TFT2 in terms of emergent space-time; refs added; typos
corrected | null | 10.1016/j.nuclphysb.2014.11.013 | QMUL-PH-14-03, WITS-CTP-131 | hep-th math-ph math.MP math.RT | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that correlators of local operators in four dimensional free scalar
field theory can be expressed in terms of amplitudes in a two dimensional
topological field theory (TFT2). We describe the state space of the TFT2, which
has $SO(4,2)$ as a global symmetry, and includes both positive and negative
energy repre... | [
{
"created": "Wed, 26 Mar 2014 12:17:18 GMT",
"version": "v1"
},
{
"created": "Thu, 14 May 2015 15:08:33 GMT",
"version": "v2"
}
] | 2015-06-19 | [
[
"Koch",
"Robert de Mello",
""
],
[
"Ramgoolam",
"Sanjaye",
""
]
] | We show that correlators of local operators in four dimensional free scalar field theory can be expressed in terms of amplitudes in a two dimensional topological field theory (TFT2). We describe the state space of the TFT2, which has $SO(4,2)$ as a global symmetry, and includes both positive and negative energy represe... |
hep-th/0510146 | Myron Bander | Myron Bander | Coherent States and N Dimensional Coordinate Noncommutativity | 16 pqges. LaTeX with JHEP.cls | JHEP0603:040,2006 | 10.1088/1126-6708/2006/03/040 | UCI-TR 2005-36 | hep-th | null | Considering coordinates as operators whose measured values are expectations
between generalized coherent states based on the group SO(N,1) leads to
coordinate noncommutativity together with full $N$ dimensional rotation
invariance. Through the introduction of a gauge potential this theory can
additionally be made inv... | [
{
"created": "Tue, 18 Oct 2005 00:05:05 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Bander",
"Myron",
""
]
] | Considering coordinates as operators whose measured values are expectations between generalized coherent states based on the group SO(N,1) leads to coordinate noncommutativity together with full $N$ dimensional rotation invariance. Through the introduction of a gauge potential this theory can additionally be made invar... |
2207.03505 | Jerry Wu | Masoumeh Tavakoli, Jerry Wu, Robert B. Mann | Multi-critical Points in Black Hole Phase Transitions | 6 pages, 3 figures Updated version, with typos in the captions of
figures 1 and 2 corrected. Results unchanged | null | 10.1007/JHEP12(2022)117 | null | hep-th gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the first examples in black hole thermodynamics of multicritical
phase transitions, in which more than three distinct black hole phases merge at
a critical point. Working in the context of non-linear electrodynamics, we
explicitly present examples of black hole quadruple and quintuple points, and
demonstra... | [
{
"created": "Thu, 7 Jul 2022 18:00:04 GMT",
"version": "v1"
},
{
"created": "Sun, 5 Nov 2023 18:42:12 GMT",
"version": "v2"
}
] | 2023-11-08 | [
[
"Tavakoli",
"Masoumeh",
""
],
[
"Wu",
"Jerry",
""
],
[
"Mann",
"Robert B.",
""
]
] | We present the first examples in black hole thermodynamics of multicritical phase transitions, in which more than three distinct black hole phases merge at a critical point. Working in the context of non-linear electrodynamics, we explicitly present examples of black hole quadruple and quintuple points, and demonstrate... |
hep-th/0005010 | Rabin Banerjee | Rabin Banerjee and Clovis Wotzasek | Dual Projection and Selfduality in Three Dimensions | 20 pages, latex | Phys.Rev. D63 (2001) 045005 | 10.1103/PhysRevD.63.045005 | null | hep-th | null | We discuss the notion of duality and selfduality in the context of the dual
projection operation that creates an internal space of potentials. Contrary to
the prevailing algebraic or group theoretical methods, this technique is
applicable to both even and odd dimensions. The role of parity in the kernel of
the Gauss ... | [
{
"created": "Mon, 1 May 2000 13:24:35 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Banerjee",
"Rabin",
""
],
[
"Wotzasek",
"Clovis",
""
]
] | We discuss the notion of duality and selfduality in the context of the dual projection operation that creates an internal space of potentials. Contrary to the prevailing algebraic or group theoretical methods, this technique is applicable to both even and odd dimensions. The role of parity in the kernel of the Gauss la... |
2209.02393 | Jochen Zahn | Jochen Zahn | Background independence and the Adler-Bardeen theorem | v2: final version | Ann. Henri Poincar\'e 25 (2024), 2641-2667 | 10.1007/s00023-023-01368-0 | null | hep-th gr-qc math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We prove that for renormalizable Yang-Mills gauge theory with arbitrary
compact gauge group (of at most a single abelian factor) and matter coupling,
the absence of gauge anomalies can be established at the one-loop level. This
proceeds by relating the gauge anomaly to perturbative agreement, which
formalizes backgro... | [
{
"created": "Tue, 6 Sep 2022 11:09:45 GMT",
"version": "v1"
},
{
"created": "Fri, 22 Sep 2023 06:55:18 GMT",
"version": "v2"
}
] | 2024-04-16 | [
[
"Zahn",
"Jochen",
""
]
] | We prove that for renormalizable Yang-Mills gauge theory with arbitrary compact gauge group (of at most a single abelian factor) and matter coupling, the absence of gauge anomalies can be established at the one-loop level. This proceeds by relating the gauge anomaly to perturbative agreement, which formalizes backgroun... |
hep-th/0403198 | Veronika E. Hubeny | Veronika E. Hubeny, Xiao Liu, Mukund Rangamani, Stephen Shenker | Comments on Cosmic Censorship in AdS/CFT | harvmac, 24 pages + appendices, 7 eps figures. v2: added brief
critical discussion on gr-qc/0307102 | JHEP 0412:067,2004 | 10.1088/1126-6708/2004/12/067 | null | hep-th gr-qc | null | Recently Hertog, Horowitz, and Maeda (HHM) (hep-th/0310054) have proposed
that cosmic censorship can be violated in the AdS/CFT context. They argue that
for certain initial data there is insufficient energy available to make a black
hole whose horizon is big enough to cloak the singularity that forms. We have
investi... | [
{
"created": "Sun, 21 Mar 2004 20:36:40 GMT",
"version": "v1"
},
{
"created": "Fri, 14 May 2004 00:00:58 GMT",
"version": "v2"
}
] | 2014-11-18 | [
[
"Hubeny",
"Veronika E.",
""
],
[
"Liu",
"Xiao",
""
],
[
"Rangamani",
"Mukund",
""
],
[
"Shenker",
"Stephen",
""
]
] | Recently Hertog, Horowitz, and Maeda (HHM) (hep-th/0310054) have proposed that cosmic censorship can be violated in the AdS/CFT context. They argue that for certain initial data there is insufficient energy available to make a black hole whose horizon is big enough to cloak the singularity that forms. We have investiga... |
hep-th/0109103 | Enrico Deotto | E. Deotto | Classical Mechanics and kappa-symmetry | 12 pages, LaTex2e | Europhys.Lett. 58 (2002) 195 | 10.1209/epl/i2002-00396-3 | null | hep-th | null | In this paper we analyze two local extensions of a model introduced some time
ago to obtain a path integral formalism for Classical Mechanics. In particular,
we show that these extensions exhibit a nonrelativistic local symmetry which is
very similar to the well known kappa-symmetry introduced in the literature
almos... | [
{
"created": "Thu, 13 Sep 2001 09:32:30 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"Deotto",
"E.",
""
]
] | In this paper we analyze two local extensions of a model introduced some time ago to obtain a path integral formalism for Classical Mechanics. In particular, we show that these extensions exhibit a nonrelativistic local symmetry which is very similar to the well known kappa-symmetry introduced in the literature almost ... |
1910.12195 | Nikhil Kalyanapuram | Nikhil Kalyanapuram | Stokes Polytopes and Intersection Theory | Expanded version with several typos corrected. Accepted for
publication in PRD | Phys. Rev. D 101, 105010 (2020) | 10.1103/PhysRevD.101.105010 | null | hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Intersection numbers of Stokes polytopes living in complex projective space
are computed using the techniques employed to find the inverse string KLT
matrix elements in terms of intersection numbers of associahedra. To do this
requires an appropriate convex realization of Stokes polytopes in
$\mathbb{CP}^{n}$ loaded ... | [
{
"created": "Sun, 27 Oct 2019 06:52:14 GMT",
"version": "v1"
},
{
"created": "Wed, 29 Apr 2020 01:23:09 GMT",
"version": "v2"
}
] | 2020-05-20 | [
[
"Kalyanapuram",
"Nikhil",
""
]
] | Intersection numbers of Stokes polytopes living in complex projective space are computed using the techniques employed to find the inverse string KLT matrix elements in terms of intersection numbers of associahedra. To do this requires an appropriate convex realization of Stokes polytopes in $\mathbb{CP}^{n}$ loaded wi... |
1009.4459 | Adolfo Malbouisson | F.C. Khanna, A.P.C. Malbouisson, J.M.C. Malbouisson, A.E. Santana | Phase transition in the 3-D massive Gross-Neveu model | 06 pages, 02 figures, LATEX | Europhys.Lett.92:11001,2010 | 10.1209/0295-5075/92/11001 | null | hep-th cond-mat.supr-con hep-ph math-ph math.MP | http://creativecommons.org/licenses/by-nc-sa/3.0/ | We consider the 3-dimensional massive Gross-Neveu model at finite temperature
as an effective theory for strong interactions. Using the Matsubara imaginary
time formalism, we derive a closed form for the renormalized $T$-dependent
four-point function. This gives a singularity, suggesting a phase transition.
Consideri... | [
{
"created": "Wed, 22 Sep 2010 19:57:15 GMT",
"version": "v1"
},
{
"created": "Wed, 17 Nov 2010 14:02:46 GMT",
"version": "v2"
}
] | 2010-12-01 | [
[
"Khanna",
"F. C.",
""
],
[
"Malbouisson",
"A. P. C.",
""
],
[
"Malbouisson",
"J. M. C.",
""
],
[
"Santana",
"A. E.",
""
]
] | We consider the 3-dimensional massive Gross-Neveu model at finite temperature as an effective theory for strong interactions. Using the Matsubara imaginary time formalism, we derive a closed form for the renormalized $T$-dependent four-point function. This gives a singularity, suggesting a phase transition. Considering... |
hep-th/0402184 | Akihiro Ishibashi | Akihiro Ishibashi and Robert M. Wald | Dynamics in Non-Globally-Hyperbolic Static Spacetimes III: Anti-de
Sitter Spacetime | 43 pages, no figures, references and comments on the case of more
general bulk geometries are added, minor corrections, discussion on the case
of black holes with a generic Einstein horizon manifold is removed, to appear
in Class. Quant. Grav | Class.Quant.Grav. 21 (2004) 2981-3014 | 10.1088/0264-9381/21/12/012 | null | hep-th gr-qc | null | In recent years, there has been considerable interest in theories formulated
in anti-de Sitter (AdS) spacetime. However, AdS spacetime fails to be globally
hyperbolic, so a classical field satisfying a hyperbolic wave equation on AdS
spacetime need not have a well defined dynamics. Nevertheless, AdS spacetime is
stat... | [
{
"created": "Mon, 23 Feb 2004 21:00:05 GMT",
"version": "v1"
},
{
"created": "Tue, 9 Mar 2004 21:46:14 GMT",
"version": "v2"
},
{
"created": "Sat, 3 Apr 2004 14:07:25 GMT",
"version": "v3"
},
{
"created": "Thu, 6 May 2004 16:42:46 GMT",
"version": "v4"
}
] | 2009-11-10 | [
[
"Ishibashi",
"Akihiro",
""
],
[
"Wald",
"Robert M.",
""
]
] | In recent years, there has been considerable interest in theories formulated in anti-de Sitter (AdS) spacetime. However, AdS spacetime fails to be globally hyperbolic, so a classical field satisfying a hyperbolic wave equation on AdS spacetime need not have a well defined dynamics. Nevertheless, AdS spacetime is static... |
1712.04816 | Changrim Ahn | Changrim Ahn and Plamen Bozhilov | Some semiclassical structure constants for AdS_4 x CP^3 | 19 pages; References added, typos fixed | null | 10.1007/JHEP02(2018)110 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We compute structure constants in three-point functions of three string
states in AdS_4 x CP^3 in the framework of the semiclassical approach. We
consider HHL correlation functions where two of the states are "heavy" string
states of finite-size giant magnons carrying one or two angular momenta and the
other one corr... | [
{
"created": "Wed, 13 Dec 2017 15:22:07 GMT",
"version": "v1"
},
{
"created": "Sun, 17 Dec 2017 08:21:50 GMT",
"version": "v2"
}
] | 2018-04-04 | [
[
"Ahn",
"Changrim",
""
],
[
"Bozhilov",
"Plamen",
""
]
] | We compute structure constants in three-point functions of three string states in AdS_4 x CP^3 in the framework of the semiclassical approach. We consider HHL correlation functions where two of the states are "heavy" string states of finite-size giant magnons carrying one or two angular momenta and the other one corres... |
hep-th/0407187 | Larisa Jonke | Marija Dimitrijevic, Larisa Jonke, Lutz Moeller, Efrossini Tsouchnika,
Julius Wess, Michael Wohlgenannt | Field theory on kappa-spacetime | 7 pages, talk given by L. Jonke at the XIII International Colloquium
on Integrable Systems and Quantum Groups, June 2004, Prague | Czech.J.Phys. 54 (2004) 1243-1248 | 10.1007/s10582-004-9785-z | null | hep-th | null | A general formalism is developed that allows the construction of field theory
on quantum spaces which are deformations of ordinary spacetime. The symmetry
group of spacetime is replaced by a quantum group. This formalism is
demonstrated for the kappa-deformed Poincare algebra and its quantum space. The
algebraic sett... | [
{
"created": "Wed, 21 Jul 2004 13:09:17 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Dimitrijevic",
"Marija",
""
],
[
"Jonke",
"Larisa",
""
],
[
"Moeller",
"Lutz",
""
],
[
"Tsouchnika",
"Efrossini",
""
],
[
"Wess",
"Julius",
""
],
[
"Wohlgenannt",
"Michael",
""
]
] | A general formalism is developed that allows the construction of field theory on quantum spaces which are deformations of ordinary spacetime. The symmetry group of spacetime is replaced by a quantum group. This formalism is demonstrated for the kappa-deformed Poincare algebra and its quantum space. The algebraic settin... |
hep-th/0411136 | Jun Li | Jun Li and Shing-Tung Yau | The Existence of Supersymmetric String Theory with Torsion | 26 pages | J. of Differential Geometry, Vol 70, no. 1, (2005) | null | null | hep-th | null | We derived an existence criterion to the Supersymmetric String Theory with
Torsion proposed by Strominger and proved the existence of such theory for a
class of Calabi-Yau threefolds.
| [
{
"created": "Fri, 12 Nov 2004 23:00:03 GMT",
"version": "v1"
},
{
"created": "Sun, 23 Apr 2006 01:39:02 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Li",
"Jun",
""
],
[
"Yau",
"Shing-Tung",
""
]
] | We derived an existence criterion to the Supersymmetric String Theory with Torsion proposed by Strominger and proved the existence of such theory for a class of Calabi-Yau threefolds. |
1810.13356 | Francisco A. Brito | M. A. Anacleto, F. A. Brito, J. A. V. Campos, E. Passos | Higher-derivative analogue Aharonov-Bohm effect, absorption and
superresonance | 11 pages, 6 figures, version to appear in IJMPA | null | null | null | hep-th gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this paper we consider the acoustic metric obtained from an Abelian Higgs
model extended with higher derivative terms in the bosonic sector which
describes an acoustic rotating black hole and analyze the phenomena of
superresonance, analogue Aharonov-Bohm effect and absorption. We investigate
these effects by comp... | [
{
"created": "Wed, 31 Oct 2018 15:49:26 GMT",
"version": "v1"
},
{
"created": "Thu, 27 Feb 2020 17:30:15 GMT",
"version": "v2"
},
{
"created": "Fri, 19 Jun 2020 17:57:07 GMT",
"version": "v3"
}
] | 2020-06-22 | [
[
"Anacleto",
"M. A.",
""
],
[
"Brito",
"F. A.",
""
],
[
"Campos",
"J. A. V.",
""
],
[
"Passos",
"E.",
""
]
] | In this paper we consider the acoustic metric obtained from an Abelian Higgs model extended with higher derivative terms in the bosonic sector which describes an acoustic rotating black hole and analyze the phenomena of superresonance, analogue Aharonov-Bohm effect and absorption. We investigate these effects by comput... |
0812.3419 | Abouzeid Shalaby Dr. | Abouzeid M. Shalaby | Possible treatment of the Ghost states in the Lee-Wick Standard Model | 11 pages, 3 figures | Phys.Rev.D80:025006,2009 | 10.1103/PhysRevD.80.025006 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Very recently, the Lee-Wick standard model has been introduced as a non-SUSY
extension of the Standard model which solves the Hierarchy problem. In this
model, each field kinetic term attains a higher derivative term. Like any
Lee-Wick theory, this model suffers from existence of Ghost states. In this
work, we consid... | [
{
"created": "Wed, 17 Dec 2008 22:04:52 GMT",
"version": "v1"
},
{
"created": "Tue, 20 Jan 2009 21:11:22 GMT",
"version": "v2"
}
] | 2009-09-02 | [
[
"Shalaby",
"Abouzeid M.",
""
]
] | Very recently, the Lee-Wick standard model has been introduced as a non-SUSY extension of the Standard model which solves the Hierarchy problem. In this model, each field kinetic term attains a higher derivative term. Like any Lee-Wick theory, this model suffers from existence of Ghost states. In this work, we consider... |
1601.05475 | Guy F. de T\'eramond | Guy F. de Teramond | Hadron Physics From Superconformal Quantum Mechanics and its Light-Front
Holographic Embedding | Invited talk presented at Light-Cone 2015: Theory and experiment for
hadrons on the light-front, September 21-25, 2015, INFN, Frascati, Italy | null | 10.1007/s00601-016-1048-6 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The complex nonperturbative color-confining dynamics of QCD is well captured
in a semiclassical effective theory based on superconformal quantum mechanics
and its extension to the light-front. I describe here how this new approach to
hadron physics incorporates confinement, the appearance of nearly massless
pseudosca... | [
{
"created": "Thu, 21 Jan 2016 00:00:17 GMT",
"version": "v1"
},
{
"created": "Fri, 29 Jan 2016 23:26:46 GMT",
"version": "v2"
}
] | 2016-03-23 | [
[
"de Teramond",
"Guy F.",
""
]
] | The complex nonperturbative color-confining dynamics of QCD is well captured in a semiclassical effective theory based on superconformal quantum mechanics and its extension to the light-front. I describe here how this new approach to hadron physics incorporates confinement, the appearance of nearly massless pseudoscala... |
0904.4538 | Edwin J. Son | Wontae Kim, Edwin J. Son | Central Charges in 2d Reduced Cosmological Massive Gravity | 12 pages; v2. typos corrected, references added, to appear in Phys.
Lett. B | Phys.Lett.B678:107-111,2009 | 10.1016/j.physletb.2009.06.005 | null | hep-th gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In the dimensionally reduced model of the 2+1 dimensional cosmological
massive gravity, we obtain the central charges of the two types of the black
hole based on the entropy function method. One is for the BTZ black hole and
the other one is actually for the warped AdS$_3$ black hole.
| [
{
"created": "Wed, 29 Apr 2009 06:07:32 GMT",
"version": "v1"
},
{
"created": "Mon, 15 Jun 2009 04:59:12 GMT",
"version": "v2"
}
] | 2014-11-18 | [
[
"Kim",
"Wontae",
""
],
[
"Son",
"Edwin J.",
""
]
] | In the dimensionally reduced model of the 2+1 dimensional cosmological massive gravity, we obtain the central charges of the two types of the black hole based on the entropy function method. One is for the BTZ black hole and the other one is actually for the warped AdS$_3$ black hole. |
hep-th/9412104 | Ernst Werner | A.Borderies, P. Grang\'e, E. Werner | Broken phase of the O(N) \phi^4 model in light cone quantization and 1/N
expansion | 20 pages, RevTeX | Phys.Lett. B345 (1995) 458-468 | 10.1016/0370-2693(94)01556-R | TPR 94-36 | hep-th | null | The solution of the O$(N) \phi^4$ scalar field theory in the broken phase is
given in the framework of light cone quantization and a 1/N expansion. It
involves the successive building of operator solutions to the equation of
motion and constraints including operator zero modes of the fields which are
the LC counterpa... | [
{
"created": "Mon, 12 Dec 1994 14:38:04 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Borderies",
"A.",
""
],
[
"Grangé",
"P.",
""
],
[
"Werner",
"E.",
""
]
] | The solution of the O$(N) \phi^4$ scalar field theory in the broken phase is given in the framework of light cone quantization and a 1/N expansion. It involves the successive building of operator solutions to the equation of motion and constraints including operator zero modes of the fields which are the LC counterpart... |
hep-th/0501203 | In Yong Park | I.Y. Park, A. Tirziu and A.A. Tseytlin | Spinning strings in AdS_5 x S^5: one-loop correction to energy in SL(2)
sector | 31 pages, 1 figure, latex; v3: minor changes and corrections | JHEP 0503:013,2005 | 10.1088/1126-6708/2005/03/013 | null | hep-th | null | We consider a circular string with spin $S$ in $AdS_5$ wrapped around big
circle of $S^5$ and carrying also momentum $J$. The corresponding N=4 SYM
operator belongs to the SL(2) sector, i.e. has tr$(D^S Z^J)+...$ structure. The
leading large $J$ term in its 1-loop anomalous dimension can be computed using
Bethe ansat... | [
{
"created": "Tue, 25 Jan 2005 20:06:10 GMT",
"version": "v1"
},
{
"created": "Wed, 26 Jan 2005 05:12:03 GMT",
"version": "v2"
},
{
"created": "Mon, 21 Feb 2005 17:19:28 GMT",
"version": "v3"
}
] | 2009-09-17 | [
[
"Park",
"I. Y.",
""
],
[
"Tirziu",
"A.",
""
],
[
"Tseytlin",
"A. A.",
""
]
] | We consider a circular string with spin $S$ in $AdS_5$ wrapped around big circle of $S^5$ and carrying also momentum $J$. The corresponding N=4 SYM operator belongs to the SL(2) sector, i.e. has tr$(D^S Z^J)+...$ structure. The leading large $J$ term in its 1-loop anomalous dimension can be computed using Bethe ansatz ... |
hep-th/0311102 | Euro Spallucci | E.I.Guendelman, E.Spallucci | Conformally Invariant Gauge Theory of 3-Branes in 6D and the
Cosmological Constant | 12 pages, Latex, no figures; final version accepted for publication
in Phys.Rev. D; Sect.II expanded | Phys.Rev. D70 (2004) 026003 | 10.1103/PhysRevD.70.026003 | null | hep-th gr-qc | null | It is shown that the gauge theory of relativistic 3-Branes can be formulated
in a conformally invariant way if the embedding space is six-dimensional. The
implementation of conformal invariance requires the use of a modified measure,
independent of the metric in the action. Brane-world scenarios without the need
of a... | [
{
"created": "Wed, 12 Nov 2003 08:55:20 GMT",
"version": "v1"
},
{
"created": "Fri, 30 Apr 2004 06:43:37 GMT",
"version": "v2"
}
] | 2009-11-10 | [
[
"Guendelman",
"E. I.",
""
],
[
"Spallucci",
"E.",
""
]
] | It is shown that the gauge theory of relativistic 3-Branes can be formulated in a conformally invariant way if the embedding space is six-dimensional. The implementation of conformal invariance requires the use of a modified measure, independent of the metric in the action. Brane-world scenarios without the need of a c... |
hep-th/0010073 | Y. M. Cho | Y. M. Cho and D. G. Pak | A Non-perturbative Estimate of Vacuum Polarization in QED | 4 pages, 5 figures | null | null | null | hep-th | null | We present a new estimate of the fine structure constant and the
$\beta$-function of QED at an arbitrary scale. Using the non-perturbative but
convergent series expression of the one loop effective action of QED that has
been available recently we make a non-perturbative estimate of the running
coupling and the $\bet... | [
{
"created": "Wed, 11 Oct 2000 02:40:53 GMT",
"version": "v1"
},
{
"created": "Fri, 3 Nov 2000 03:29:26 GMT",
"version": "v2"
},
{
"created": "Wed, 5 Sep 2001 00:09:07 GMT",
"version": "v3"
}
] | 2007-05-23 | [
[
"Cho",
"Y. M.",
""
],
[
"Pak",
"D. G.",
""
]
] | We present a new estimate of the fine structure constant and the $\beta$-function of QED at an arbitrary scale. Using the non-perturbative but convergent series expression of the one loop effective action of QED that has been available recently we make a non-perturbative estimate of the running coupling and the $\beta$... |
1602.08589 | Vladimir Ivashchuk | V. D. Ivashchuk | Quantum billiards with branes on product of Einstein spaces | 31 pages, Latex, no figures, based on a talk at Int. Session-Conf. of
the Sect. of Nucl. Phys. of PSD RAN "Physics of Fundamental Interactions",
April 12-15, 2016, JINR, Dubna; few typos are eliminated, some references are
updated and reordered | null | 10.1140/epjc/s10052-016-4138-1 | IGC-PFUR-2016-02/02-cor2 | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a gravitational model in dimension D with several forms, l scalar
fields and a Lambda-term. We study cosmological-type block-diagonal metrics
defined on a product of an 1-dimensional interval and n oriented Einstein
spaces. As an electromagnetic composite brane ansatz is adopted and certain
restrictions o... | [
{
"created": "Sat, 27 Feb 2016 13:34:03 GMT",
"version": "v1"
},
{
"created": "Mon, 18 Apr 2016 21:34:25 GMT",
"version": "v2"
},
{
"created": "Fri, 22 Apr 2016 18:22:27 GMT",
"version": "v3"
},
{
"created": "Wed, 25 May 2016 21:23:45 GMT",
"version": "v4"
}
] | 2016-06-22 | [
[
"Ivashchuk",
"V. D.",
""
]
] | We consider a gravitational model in dimension D with several forms, l scalar fields and a Lambda-term. We study cosmological-type block-diagonal metrics defined on a product of an 1-dimensional interval and n oriented Einstein spaces. As an electromagnetic composite brane ansatz is adopted and certain restrictions on ... |
hep-th/9807216 | Thorsten Brotz | Maximo Banados, Thorsten Brotz, Miguel Ortiz | Quantum three-dimensional de Sitter space | 10 pages | Phys.Rev. D59 (1999) 046002 | 10.1103/PhysRevD.59.046002 | Imperial/TP/97-98/56, DFTUZ 98 | hep-th gr-qc | null | We compute the canonical partition function of 2+1 dimensional de Sitter
space using the Euclidean $SU(2)\times SU(2)$ Chern-Simons formulation of 3d
gravity with a positive cosmological constant. Firstly, we point out that one
can work with a Chern-Simons theory with level $k=l/4G$, and its
representations are there... | [
{
"created": "Wed, 29 Jul 1998 10:30:16 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Banados",
"Maximo",
""
],
[
"Brotz",
"Thorsten",
""
],
[
"Ortiz",
"Miguel",
""
]
] | We compute the canonical partition function of 2+1 dimensional de Sitter space using the Euclidean $SU(2)\times SU(2)$ Chern-Simons formulation of 3d gravity with a positive cosmological constant. Firstly, we point out that one can work with a Chern-Simons theory with level $k=l/4G$, and its representations are therefo... |
hep-th/0412065 | Alexander Burinskii | A. Burinskii | Spinning particle, rotating black hole and twistor-string | 5 p. Talk at the SPIN 2004 Symposium (ICTP Trieste, October 2004) | null | 10.1142/9789812701909_0039 | null | hep-th gr-qc hep-ph quant-ph | null | Structure of spinning particle based on the rotating black hole solution is
considered. It has gyromagnetic ratio $g=2$ and a nontrivial twistorial and
stringy systems. The mass and spin appear from excitations of the Kerr circular
string, while the Dirac equation describes excitations of an {\it axial}
stringy syste... | [
{
"created": "Tue, 7 Dec 2004 14:51:15 GMT",
"version": "v1"
}
] | 2017-08-23 | [
[
"Burinskii",
"A.",
""
]
] | Structure of spinning particle based on the rotating black hole solution is considered. It has gyromagnetic ratio $g=2$ and a nontrivial twistorial and stringy systems. The mass and spin appear from excitations of the Kerr circular string, while the Dirac equation describes excitations of an {\it axial} stringy system ... |
hep-th/0210133 | Tetsuyuki Muramatsu | Y. Kazama and T. Muramatsu | Power of Supersymmetry in D-particle Dynamics | 44 pages, v2: typos corrected, published version | Nucl.Phys.B656:93-131,2003 | 10.1016/S0550-3213(03)00115-9 | UT-Komaba 02-11 | hep-th | null | A new systematic method is developed to study to what extent the symmetry
requirements alone, above all the invariance under 16 supersymmetries (SUSY),
determine the completely off-shell effective action $\Gamma$ of a D-particle,
i.e. without imposing any restrictions on its position $r^m(\tau)$ and spin
$\theta_\alp... | [
{
"created": "Tue, 15 Oct 2002 05:21:21 GMT",
"version": "v1"
},
{
"created": "Tue, 4 Mar 2003 06:45:48 GMT",
"version": "v2"
}
] | 2011-07-19 | [
[
"Kazama",
"Y.",
""
],
[
"Muramatsu",
"T.",
""
]
] | A new systematic method is developed to study to what extent the symmetry requirements alone, above all the invariance under 16 supersymmetries (SUSY), determine the completely off-shell effective action $\Gamma$ of a D-particle, i.e. without imposing any restrictions on its position $r^m(\tau)$ and spin $\theta_\alpha... |
hep-th/0004132 | Serguei Gavrilov | S.P. Gavrilov, D.M. Gitman, A.E. Goncalves | QED in external field with space-time uniform invariants. Exact
solutions | 32 pages | J.Math.Phys. 39 (1998) 3547-3567 | 10.1063/1.532451 | null | hep-th | null | We study exact solutions of Dirac and Klein-Gordon equations and Green
functions in d-dimensional QED and in an external electromagnetic field with
constant and homogeneous field invariants. The cases of even and odd dimensions
are considered separately, they are essentially different. We direct attention
to the asym... | [
{
"created": "Tue, 18 Apr 2000 20:44:18 GMT",
"version": "v1"
}
] | 2016-09-06 | [
[
"Gavrilov",
"S. P.",
""
],
[
"Gitman",
"D. M.",
""
],
[
"Goncalves",
"A. E.",
""
]
] | We study exact solutions of Dirac and Klein-Gordon equations and Green functions in d-dimensional QED and in an external electromagnetic field with constant and homogeneous field invariants. The cases of even and odd dimensions are considered separately, they are essentially different. We direct attention to the asymme... |
1412.6521 | Simon Gentle A | Tomas Andrade and Simon A. Gentle | Relaxed superconductors | 28 pages and 17 figures. v2: references added | null | null | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Momentum relaxation can be built into many holographic models without
sacrificing homogeneity of the bulk solution. In this paper we study two such
models: one in which translational invariance is broken in the dual theory by
spatially-dependent sources for massless scalar fields and another that
features an addition... | [
{
"created": "Fri, 19 Dec 2014 20:50:02 GMT",
"version": "v1"
},
{
"created": "Thu, 23 Apr 2015 16:28:59 GMT",
"version": "v2"
}
] | 2015-04-24 | [
[
"Andrade",
"Tomas",
""
],
[
"Gentle",
"Simon A.",
""
]
] | Momentum relaxation can be built into many holographic models without sacrificing homogeneity of the bulk solution. In this paper we study two such models: one in which translational invariance is broken in the dual theory by spatially-dependent sources for massless scalar fields and another that features an additional... |
1107.4321 | William Black | William Black and Cristina Monni | High energy string-brane scattering for massive states | 28 pages, 2 figures | Nucl.Phys. B859 (2012) 299-320 | 10.1016/j.nuclphysb.2012.02.009 | QMUL-PH-11-10 | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | String-brane interactions provide an ideal framework to study the dynamics of
the massive states of the string spectrum in a non-trivial background. We
present here an analysis of tree-level amplitudes for processes in which an
NS-NS string state from the leading Regge trajectory scatters from a D-brane
into another ... | [
{
"created": "Thu, 21 Jul 2011 17:36:21 GMT",
"version": "v1"
},
{
"created": "Tue, 13 Mar 2012 13:45:36 GMT",
"version": "v2"
}
] | 2012-03-14 | [
[
"Black",
"William",
""
],
[
"Monni",
"Cristina",
""
]
] | String-brane interactions provide an ideal framework to study the dynamics of the massive states of the string spectrum in a non-trivial background. We present here an analysis of tree-level amplitudes for processes in which an NS-NS string state from the leading Regge trajectory scatters from a D-brane into another st... |
1909.10979 | Erich Poppitz | Andrew A. Cox, Erich Poppitz, Samuel S.Y. Wong | Domain walls and deconfinement: a semiclassical picture of discrete
anomaly inflow | 49 pages, 18 figures, references added, final version, text and
figures identical to published | JHEP12(2019)011 | 10.1007/JHEP12(2019)011 | null | hep-th hep-lat | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the physics of quark deconfinement on domain walls in
four-dimensional supersymmetric SU(N) Yang-Mills theory, compactified on a
small circle with supersymmetric boundary conditions. We numerically examine
the properties of BPS domain walls connecting vacua k units apart. We also
determine their electric flu... | [
{
"created": "Tue, 24 Sep 2019 15:04:21 GMT",
"version": "v1"
},
{
"created": "Fri, 18 Oct 2019 20:24:51 GMT",
"version": "v2"
},
{
"created": "Tue, 3 Dec 2019 18:44:00 GMT",
"version": "v3"
}
] | 2020-01-29 | [
[
"Cox",
"Andrew A.",
""
],
[
"Poppitz",
"Erich",
""
],
[
"Wong",
"Samuel S. Y.",
""
]
] | We study the physics of quark deconfinement on domain walls in four-dimensional supersymmetric SU(N) Yang-Mills theory, compactified on a small circle with supersymmetric boundary conditions. We numerically examine the properties of BPS domain walls connecting vacua k units apart. We also determine their electric fluxe... |
1512.06186 | Hossein Yavartanoo | S. Sadeghian, M.M. Sheikh-Jabbari, M.H. Vahidinia and H. Yavartanoo | Three Theorems on Near Horizon Extremal Vanishing Horizon Geometries | 5 pages | Phys.Lett. B753 (2016) 488-492 | 10.1016/j.physletb.2015.12.057 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | EVH black holes are Extremal black holes with Vanishing Horizon area, where
vanishing of horizon area is a result of having a vanishing one-cycle on the
horizon. We prove three theorems regarding near horizon geometry of EVH black
hole solutions to generic Einstein gravity theories in diverse dimensions.
These generi... | [
{
"created": "Sat, 19 Dec 2015 04:42:28 GMT",
"version": "v1"
}
] | 2016-01-08 | [
[
"Sadeghian",
"S.",
""
],
[
"Sheikh-Jabbari",
"M. M.",
""
],
[
"Vahidinia",
"M. H.",
""
],
[
"Yavartanoo",
"H.",
""
]
] | EVH black holes are Extremal black holes with Vanishing Horizon area, where vanishing of horizon area is a result of having a vanishing one-cycle on the horizon. We prove three theorems regarding near horizon geometry of EVH black hole solutions to generic Einstein gravity theories in diverse dimensions. These generic ... |
hep-th/0009131 | Minic | Djordje Minic | Towards Covariant Matrix Theory | LaTeX, 9 pages; talk given at the Fradkin Memorial Conference,
Moscow, June 2000 | null | null | CITUSC/00-054 | hep-th | null | We review an approach towards a covariant formulation of Matrix theory based
on a discretization of the 11d membrane. Higher dimensional algebraic
structures, such as the quantum triple Nambu bracket, naturally appear in this
approach. We also discuss a novel geometric understanding of the space-time
uncertainty rela... | [
{
"created": "Sun, 17 Sep 2000 19:53:05 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Minic",
"Djordje",
""
]
] | We review an approach towards a covariant formulation of Matrix theory based on a discretization of the 11d membrane. Higher dimensional algebraic structures, such as the quantum triple Nambu bracket, naturally appear in this approach. We also discuss a novel geometric understanding of the space-time uncertainty relati... |
1306.5935 | Thomas Winyard | Paul Jennings, Thomas Winyard | Broken planar Skyrmions -- statics and dynamics | 20 pages, 10 figures | null | 10.1007/JHEP01(2014)122 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The broken planar Skyrme model is a theory that breaks global O(3) symmetry
to the dihedral group D_N. It has been shown that the single soliton solution
is formed of N constituent parts, named partons, that are topologically
confined. The multi-soliton solutions have already been computed for N = 3 and
were shown to... | [
{
"created": "Tue, 25 Jun 2013 12:22:54 GMT",
"version": "v1"
},
{
"created": "Mon, 22 Jul 2013 13:26:22 GMT",
"version": "v2"
}
] | 2015-06-16 | [
[
"Jennings",
"Paul",
""
],
[
"Winyard",
"Thomas",
""
]
] | The broken planar Skyrme model is a theory that breaks global O(3) symmetry to the dihedral group D_N. It has been shown that the single soliton solution is formed of N constituent parts, named partons, that are topologically confined. The multi-soliton solutions have already been computed for N = 3 and were shown to b... |
hep-th/9704139 | David Gross | David Gross | The Triumph And Limitations Of Quantum Field Theory | 16 pages, Latex | null | null | null | hep-th | null | Talk presented at the conference ``Historical and Philosophical Reflections
on the Foundations of Quantum Field Theory,'' at Boston University, March 1996.
It will be published in the proceedings of this conference.
| [
{
"created": "Fri, 18 Apr 1997 18:58:28 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Gross",
"David",
""
]
] | Talk presented at the conference ``Historical and Philosophical Reflections on the Foundations of Quantum Field Theory,'' at Boston University, March 1996. It will be published in the proceedings of this conference. |
2408.07464 | Mohammad R. Garousi | Ali Baradaran-Hosseini, Mohammad R. Garousi | D-Brane Effective Lagrangian in Spacetimes with Boundaries | 26 pages, Latex file, no figure | null | null | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this study, we explore the transformation of $D_p$-branes to
$D_{p-1}$-branes under T-duality when the $D$-brane is embedded in a spacetime
with a boundary. Our goal is to derive the higher-derivative corrections to the
Dirac-Born-Infeld (DBI) Lagrangian for both the bulk and boundary terms.
For the bulk terms, ... | [
{
"created": "Wed, 14 Aug 2024 11:13:14 GMT",
"version": "v1"
}
] | 2024-08-15 | [
[
"Baradaran-Hosseini",
"Ali",
""
],
[
"Garousi",
"Mohammad R.",
""
]
] | In this study, we explore the transformation of $D_p$-branes to $D_{p-1}$-branes under T-duality when the $D$-brane is embedded in a spacetime with a boundary. Our goal is to derive the higher-derivative corrections to the Dirac-Born-Infeld (DBI) Lagrangian for both the bulk and boundary terms. For the bulk terms, we c... |
0812.1806 | Vitor Cardoso | Vitor Cardoso, Alex S. Miranda, Emanuele Berti, Helvi Witek, Vilson T.
Zanchin | Geodesic stability, Lyapunov exponents and quasinormal modes | 13 pages, 2 Figs, RevTex4. v2: Minor corrections. v3: more minor
corrections | Phys.Rev.D79:064016,2009 | 10.1103/PhysRevD.79.064016 | null | hep-th astro-ph gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Geodesic motion determines important features of spacetimes. Null unstable
geodesics are closely related to the appearance of compact objects to external
observers and have been associated with the characteristic modes of black
holes. By computing the Lyapunov exponent, which is the inverse of the
instability timesca... | [
{
"created": "Tue, 9 Dec 2008 21:38:26 GMT",
"version": "v1"
},
{
"created": "Fri, 6 Mar 2009 19:07:26 GMT",
"version": "v2"
},
{
"created": "Thu, 12 Mar 2009 00:13:05 GMT",
"version": "v3"
}
] | 2011-06-21 | [
[
"Cardoso",
"Vitor",
""
],
[
"Miranda",
"Alex S.",
""
],
[
"Berti",
"Emanuele",
""
],
[
"Witek",
"Helvi",
""
],
[
"Zanchin",
"Vilson T.",
""
]
] | Geodesic motion determines important features of spacetimes. Null unstable geodesics are closely related to the appearance of compact objects to external observers and have been associated with the characteristic modes of black holes. By computing the Lyapunov exponent, which is the inverse of the instability timescale... |
1204.3506 | K. Narayan | K. Narayan | Cosmological singularities, AdS/CFT and de Sitter deformations | Based on talk at ICGC 2011 conference, Dec 2011, to appear in
Proceedings | null | null | null | hep-th gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We review aspects of certain time-dependent deformations of $AdS/CFT$
containing cosmological singularities and their gauge theory duals. Towards
understanding these solutions better, we explore similar singular deformations
of de Sitter space and argue that these solutions are constrained, possibly
corresponding to ... | [
{
"created": "Mon, 16 Apr 2012 15:01:40 GMT",
"version": "v1"
}
] | 2012-04-17 | [
[
"Narayan",
"K.",
""
]
] | We review aspects of certain time-dependent deformations of $AdS/CFT$ containing cosmological singularities and their gauge theory duals. Towards understanding these solutions better, we explore similar singular deformations of de Sitter space and argue that these solutions are constrained, possibly corresponding to sp... |
1303.2668 | Gang Yang | Zhiquan Gao and Gang Yang | Y-system for form factors at strong coupling in AdS5 and with
multi-operator insertions in AdS3 | 1+53 pages, 20 figures; v3, references and footnotes added, typos
corrected, published version | JHEP 1306:105,2013 | 10.1007/JHEP06(2013)105 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study form factors in N=4 SYM at strong coupling in general kinematics and
with multi-operator insertions by using gauge/string duality and integrability
techniques. This generalizes the AdS3 results of Maldacena and Zhiboedov in two
non-trivial aspects. The first generalization to AdS5 space was motivated by
its ... | [
{
"created": "Mon, 11 Mar 2013 20:14:36 GMT",
"version": "v1"
},
{
"created": "Mon, 1 Apr 2013 20:00:53 GMT",
"version": "v2"
},
{
"created": "Fri, 5 Jul 2013 19:51:48 GMT",
"version": "v3"
}
] | 2013-07-08 | [
[
"Gao",
"Zhiquan",
""
],
[
"Yang",
"Gang",
""
]
] | We study form factors in N=4 SYM at strong coupling in general kinematics and with multi-operator insertions by using gauge/string duality and integrability techniques. This generalizes the AdS3 results of Maldacena and Zhiboedov in two non-trivial aspects. The first generalization to AdS5 space was motivated by its po... |
1003.3148 | Alikram Aliev N | Haji Ahmedov and Alikram N. Aliev | Decoupling and Reduction in Chern-Simons Modified Gravity | 6 pages, twocolumn REVTeX ; Published version | Phys.Lett.B690:196-200,2010 | 10.1016/j.physletb.2010.05.021 | null | hep-th astro-ph.HE gr-qc | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We show that for four-dimensional spacetimes with a non-null hypersurface
orthogonal Killing vector and for a Chern-Simons (CS) background
(non-dynamical) scalar field, which is constant along the Killing vector, the
source-free equations of CS modified gravity decouple into their Einstein and
Cotton constituents. Th... | [
{
"created": "Tue, 16 Mar 2010 13:47:47 GMT",
"version": "v1"
},
{
"created": "Fri, 4 Jun 2010 05:51:53 GMT",
"version": "v2"
}
] | 2014-11-20 | [
[
"Ahmedov",
"Haji",
""
],
[
"Aliev",
"Alikram N.",
""
]
] | We show that for four-dimensional spacetimes with a non-null hypersurface orthogonal Killing vector and for a Chern-Simons (CS) background (non-dynamical) scalar field, which is constant along the Killing vector, the source-free equations of CS modified gravity decouple into their Einstein and Cotton constituents. Thus... |
1008.2198 | Vitaly Velizhanin | V.N. Velizhanin | Vanishing of the four-loop charge renormalization function in N=4 SYM
theory | 6 pages | Phys.Lett.B696:560-562,2011 | 10.1016/j.physletb.2011.01.019 | null | hep-th hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We calculate the renormalization constants of the maximally extended N=4
supersymmetric Yang-Mills theories in the dimensional reduction scheme up to
four loops. We have found, that the beta-function is zero both from gauge and
Yukawa vertices.
| [
{
"created": "Thu, 12 Aug 2010 19:49:09 GMT",
"version": "v1"
},
{
"created": "Thu, 6 Jan 2011 19:05:20 GMT",
"version": "v2"
}
] | 2011-03-07 | [
[
"Velizhanin",
"V. N.",
""
]
] | We calculate the renormalization constants of the maximally extended N=4 supersymmetric Yang-Mills theories in the dimensional reduction scheme up to four loops. We have found, that the beta-function is zero both from gauge and Yukawa vertices. |
hep-th/9811138 | Zorawar S. Bassi | Z. S. Bassi and A. LeClair | The Kondo Model with a Bulk Mass Term | 33 pages, Plain TeX | Nucl.Phys. B552 (1999) 643-676 | 10.1016/S0550-3213(99)00257-6 | CLNS 98/1592 | hep-th cond-mat | null | We introduce two massive versions of the anisotropic spin 1/2 Kondo model and
discuss their integrability. The two models have the same bulk sine-Gordon
interactions, but differ in their boundary interactions. At the Toulouse free
fermion point each of the models can be understood as two decoupled Ising
models in bou... | [
{
"created": "Sun, 15 Nov 1998 23:54:37 GMT",
"version": "v1"
},
{
"created": "Sun, 8 Aug 1999 19:30:16 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Bassi",
"Z. S.",
""
],
[
"LeClair",
"A.",
""
]
] | We introduce two massive versions of the anisotropic spin 1/2 Kondo model and discuss their integrability. The two models have the same bulk sine-Gordon interactions, but differ in their boundary interactions. At the Toulouse free fermion point each of the models can be understood as two decoupled Ising models in bound... |
1110.2127 | Tiago Mariz | J. Leite, T. Mariz | Induced Lorentz-violating terms at finite temperature | 12 pages, 4 figures, revtex4; v2: EPL version | null | 10.1209/0295-5075/99/21003 | null | hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the radiatively induced Lorentz-violating terms at finite
temperature, namely, the higher-derivative term and the Chern-Simons term.
These terms are induced by integrating out the fermions coupled to the
coefficient $g^{\kappa\mu\nu}$. The calculation of the resulting expressions is
performed by using the de... | [
{
"created": "Mon, 10 Oct 2011 18:09:15 GMT",
"version": "v1"
},
{
"created": "Fri, 3 Aug 2012 21:01:05 GMT",
"version": "v2"
}
] | 2015-05-30 | [
[
"Leite",
"J.",
""
],
[
"Mariz",
"T.",
""
]
] | We study the radiatively induced Lorentz-violating terms at finite temperature, namely, the higher-derivative term and the Chern-Simons term. These terms are induced by integrating out the fermions coupled to the coefficient $g^{\kappa\mu\nu}$. The calculation of the resulting expressions is performed by using the deri... |
2111.06836 | Pavel Mnev | Olga Chekeres, Andrey S. Losev, Pavel Mnev, Donald R. Youmans | Theory of holomorphic maps of two-dimensional complex manifolds to toric
manifolds and type A multi-string theory | null | null | 10.1134/S0021364022010027 | null | hep-th math-ph math.MP | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the field theory localizing to holomorphic maps from a complex
manifold of complex dimension 2 to a toric target (a generalization of A
model). Fields are realized as maps to $(\mathbb{C}^*)^N$ where one includes
special observables supported on (1,1)-dimensional submanifolds to produce maps
to the toric com... | [
{
"created": "Fri, 12 Nov 2021 17:40:57 GMT",
"version": "v1"
}
] | 2022-01-05 | [
[
"Chekeres",
"Olga",
""
],
[
"Losev",
"Andrey S.",
""
],
[
"Mnev",
"Pavel",
""
],
[
"Youmans",
"Donald R.",
""
]
] | We study the field theory localizing to holomorphic maps from a complex manifold of complex dimension 2 to a toric target (a generalization of A model). Fields are realized as maps to $(\mathbb{C}^*)^N$ where one includes special observables supported on (1,1)-dimensional submanifolds to produce maps to the toric compa... |
hep-th/9406028 | L. Papantonopoulos | G.A. Diamandis, B.C. Georgalas and E. Papantonopoulos | Tachyon Effects on the 2-Dim Black Hole Geometry | NTUA 45/94, Pages 11, Latex, 3 Figures on request | Mod.Phys.Lett. A10 (1995) 1277-1286 | 10.1142/S0217732395001393 | null | hep-th | null | We study solutions of the tree level string effective action in the presence
of the tachyon mode.We find that the 2-dim. static black hole is stable against
tachyonic perturbations.For a particular ansatz for the tachyon field we find
an exact solution of the equations of motion which exhibits a naked
singularity.In ... | [
{
"created": "Mon, 6 Jun 1994 08:38:32 GMT",
"version": "v1"
}
] | 2019-08-17 | [
[
"Diamandis",
"G. A.",
""
],
[
"Georgalas",
"B. C.",
""
],
[
"Papantonopoulos",
"E.",
""
]
] | We study solutions of the tree level string effective action in the presence of the tachyon mode.We find that the 2-dim. static black hole is stable against tachyonic perturbations.For a particular ansatz for the tachyon field we find an exact solution of the equations of motion which exhibits a naked singularity.In th... |
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