id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
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hep-th/9308156 | Particle/String field theory induced by W-gravity non-linear sigma
models and the Grand String Symmetry | Preliminary investigations of the topological phase of string theory along
the lines of a (restricted) $\dot{w}_{\infty}$ non-linear sigma model are
provided. Gauge fixing the w gravity gauge fields by preserving a geometric
identity Lorenz covariantizes the w-particle and gauge covariantizes the YM.
The notion of foli... | 1993-08-31 | 2007-05-23 | [
"hep-th"
] | H. Gasparakis |
hep-th/9308155 | Quantization and the Issue of Time for Various Two-Dimensional Models of
Gravity | It is shown that the models of 2D Liouville Gravity, 2D Black Hole- and
$R^2$-Gravity are {\em embedded} in the Katanaev-Volovich model of
2D NonEinsteinian Gravity. Different approaches to the formulation of a
quantum theory for the above systems are then presented: The Dirac constraints
can be solved exactly in the... | 1993-08-31 | 2011-04-15 | [
"hep-th"
] | Thomas Strobl |
hep-th/9308157 | Coherent States of $SU(l,1)$ groups | This work can be considered as a continuation of our previous one (J.Phys.,
26 (1993) 313), in which an explicit form of coherent states (CS) for all SU(N)
groups was constructed by means of representations on polynomials. Here we
extend that approach to any SU(l,1) group and construct explicitly
corresponding CS. The ... | 1993-08-31 | 2009-10-22 | [
"hep-th"
] | D.M.Gitman and A.L.Shelepin (Institute of Physics University of S\~ao
Paulo) |
hep-th/9308152 | On String Tunneling in Power Law Inflationary Universes | We consider the evolution of circular string loops in power law expanding
universes represented by a spatially flat Friedman-Robertson-Walker metric with
scale factor $a(t)\propto t^p$ where $t$ is the cosmic time and $p\geq 0$. Our
main result is the existence of a "magic" power $p_m=3+2\sqrt{2}$. In
spacetimes with $... | 1993-08-31 | 2009-10-22 | [
"hep-th"
] | A.L. Larsen and Minos Axenides |
hep-th/9308154 | On Nonabelian Duality | We show that nonabelian duality is not a symmetry of a conformal field
theory, but rather a symmetry between different theories. We expose a nonlocal
symmetry of nonabelian dual theories. We show how, in the case with vanishing
isotropy, it can be used to find the inverse dual transformation. Finally, we
consider a num... | 1993-08-31 | 2009-10-22 | [
"hep-th"
] | Amit Giveon and Martin Rocek |
hep-th/9308153 | Quasifinite highest weight modules over the Lie algebra of differential
operators on the circle | We classify positive energy representations with finite degeneracies of the
Lie algebra $W_{1+\infty}\/$ and construct them in terms of representation
theory of the Lie algebra $\hatgl ( \infty R_m )\/$ of infinite matrices with
finite number of non-zero diagonals over the algebra $R_m = \C [ t ] / ( t^{m +
1} )\/$. Th... | 1993-08-31 | 2016-09-06 | [
"hep-th",
"math.QA"
] | Victor G. Kac and A. Radul |
hep-th/9308143 | Linear $r$-Matrix Algebra for Systems Separable\\ in Parabolic
Coordinates | We consider a hierarchy of many particle systems on the line with polynomial
potentials separable in parabolic coordinates. Using the Lax representation,
written in terms of $2\times 2$ matrices for the whole hierarchy, we construct
the associated linear $r$-matrix algebra with the $r$-matrix dependent on the
dynamical... | 1993-08-30 | 2009-10-22 | [
"hep-th"
] | J.C.Eilbeck, V.Z.Enol'skii, V.B.Kuznetsov, and D.V.Leykin |
hep-th/9308147 | From A_m Trigonometric S-Matrices to the Thermodynamic Bethe Ansatz | The thermodynamic Bethe Ansatz equations that have been proposed to describe
massive integrable deformations of the coset conformal field theories
$g_k\times g_l/g_{k+l}$ are shown to result directly by applying the usual
thermodynamic Bethe Ansatz arguments to the trigonometric $S$-matrices for the
algebras $g=a_{m-1}... | 1993-08-30 | 2009-10-22 | [
"hep-th"
] | T.J. Hollowood |
hep-th/9308146 | Finite and Infinite W Algebras and their Applications | In this paper we present a systematic study of $W$ algebras from the
Hamiltonian reduction point of view. The Drinfeld-Sokolov (DS) reduction scheme
is generalized to arbitrary $sl_2$ embeddings thus showing that a large class
of W algebras can be viewed as reductions of affine Lie algebras. The
hierarchies of integrab... | 1993-08-30 | 2007-05-23 | [
"hep-th"
] | T.Tjin |
hep-th/9308145 | Subfactors and coset models | Some facts about von Neumann algebras and finite index inclusions of factors
are viewed in the context of local quantum field theory. The possibility of
local fields intertwining superselection sectors with braid group statistics is
explored. Conformal embeddings and coset models serve as examples. The
associated symme... | 1993-08-30 | 2007-05-23 | [
"hep-th"
] | K.-H. Rehren |
hep-th/9308149 | Investigation of Discrete Gauge Anomalies in String Theory | In string theory, there are no continuous global symmetries. Discrete
symmetries frequently appear, and these can often be understood as unbroken
subgroups of larger, spontaneously broken gauge symmetries (discrete gauge
symmetries). In cases which have been studied previously, anomalies in these
symmetries could alway... | 1993-08-30 | 2007-05-23 | [
"hep-th"
] | D.A. MacIntire |
hep-th/9308142 | Representations of U(1,q) and Constructive Quaternion Tensor Products | The representation theory of the group U(1,q) is discussed in detail because
of its possible application in a quaternion version of the Salam-Weinberg
theory.
As a consequence, from purely group theoretical arguments we demonstrate that
the eigenvalues must be right-eigenvalues and that the only consistent scalar
pro... | 1993-08-30 | 2008-11-26 | [
"hep-th"
] | S. De Leo and P. Rotelli |
hep-th/9308141 | Poisson Bracket on the Space of Histories | We extend the Poisson bracket from a Lie bracket of phase space functions to
a Lie bracket of functions on the space of canonical histories and investigate
the resulting algebras. Typically, such extensions define corresponding Lie
algebras on the space of Lagrangian histories via pull back to a space of
partial soluti... | 1993-08-30 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Donald Marolf |
hep-th/9308144 | News from the Virasoro algebra | It is shown that the local quantum field theory of the chiral energy-
momentum tensor with central charge $c=1$ coincides with the gauge invariant
subtheory of the chiral $SU(2)$ current algebra at level 1, where the gauge
group is the global $SU(2)$ symmetry. At higher level, the same scheme gives
rise to $W$-algebra ... | 1993-08-30 | 2009-10-22 | [
"hep-th"
] | K.-H. Rehren |
hep-th/9308148 | On the Addition of Quantum Matrices | We introduce an addition law for the usual quantum matrices $A(R)$ by means
of a coaddition $\underline{\Delta} t=t\otimes 1+1\otimes t$. It supplements
the usual comultiplication $\Delta t=t\otimes t$ and together they obey a
codistributivity condition. The coaddition does not form a usual Hopf algebra
but a braided o... | 1993-08-30 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Shahn Majid |
hep-th/9308150 | The Generalized Peierls Bracket | We first extend the Peierls algebra of gauge invariant functions from the
space ${\cal S}$ of classical solutions to the space ${\cal H}$ of histories
used in path integration and some studies of decoherence. We then show that it
may be generalized in a number of ways to act on gauge dependent functions on
${\cal H}$. ... | 1993-08-30 | 2010-11-01 | [
"hep-th",
"gr-qc"
] | Donald Marolf |
hep-th/9308140 | On the equivalence between the unified and standard versions of
constraint dynamics | The structure of physical operators and states of the unified constraint
dynamics is studied. The genuine second--class constraints encoded are shown to
be the superselection operators. The unified constrained dynamics is
established to be physically--equivalent to the standard BFV--formalism with
constraints split. | 1993-08-29 | 2015-06-26 | [
"hep-th"
] | I.A.Batalin and I.V.Tyutin |
hep-th/9308132 | BRST model applied to symplectic geometry | Two local macros are included (gothic.sty and fleqn.sty) | 1993-08-27 | 2008-02-03 | [
"hep-th",
"math.SG"
] | Jaap Kalkman |
hep-th/9308133 | Manifest Duality in Low-Energy Superstrings | String theories inspire a new formalism for their low-energy limits. In this
approach to these field theories, spacetime duality and stringy left/right
handedness are manifest. Enlarged tangent-space symmetries allow the different
fields (graviton, axion, Yang-Mills) to be treated as a single multiplet, even
in the bos... | 1993-08-27 | 2007-05-23 | [
"hep-th"
] | W. Siegel |
hep-th/9308137 | The $n$-component KP hierarchy and representation theory | Starting from free charged fermions we give equivalent definitions of the
$n\/$-component KP hierarchy, in terms of $\tau\/$-functions $\tau_\alpha\/$
(where $\alpha \in M =\/$ root lattice of $sl_n\/$), in terms of $n \times n\/$
matrix valued wave functions $W_\alpha(\alpha\in M)\/$, and in terms of
pseudodifferentia... | 1993-08-27 | 2009-10-22 | [
"hep-th"
] | V.G. Kac and J.W. van de Leur |
hep-th/9308139 | Strings, Black Holes and Lorentz Contraction | Consistency of quantum mechanics in black hole physics requires unusual
Lorentz transformation properties of the size and shape of physical systems
with momentum beyond the Planck scale. A simple parton model illustrates the
kind of behavior which is needed. It is then shown that conventional
fundamental string theory ... | 1993-08-27 | 2009-10-07 | [
"hep-th"
] | Leonard Susskind |
hep-th/9308131 | Cosmological String Solutions in 4 Dimensions from 5d Black Holes | We obtain cosmological four dimensional solutions of the low energy effective
string theory by reducing a five dimensional black hole, and black hole--de
Sitter solution of Einstein gravity down to four dimensions. The appearance of
a cosmological constant in the five dimensional Einstein--Hilbert action
produces a spe... | 1993-08-27 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | K. Behrndt, S. Foerste |
hep-th/9308129 | The Ten-Dimensional Green-Schwarz Superstring is a Twisted
Neveu-Schwarz-Ramond String | An action for the ten-dimensional Green-Schwarz superstring with N=2
worldsheet superconformal invariance has recently been used to calculate
superstring scattering amplitudes and prove their finiteness. In this paper, it
is shown that the N=2 stress-energy tensor for this Green-Schwarz action can be
constructed out of... | 1993-08-27 | 2009-10-22 | [
"hep-th"
] | Nathan Berkovits |
hep-th/9308134 | The Many Faces of the Quantum Liouville Exponentials | First, it is proven that the three main operator-approaches to the quantum
Liouville exponentials --- that is the one of Gervais-Neveu (more recently
developed further by Gervais), Braaten-Curtright-Ghandour-Thorn, and Otto-Weigt
--- are equivalent since they are related by simple basis transformations in
the Fock spac... | 1993-08-27 | 2009-10-22 | [
"hep-th"
] | Jean-Loup Gervais, Jens Schnittger |
hep-th/9308135 | A String Project in Multicolour QCD | Some old and new evidence for the existence of the string (planar random
surfaces) representation of multicolour QCD are reviewed. They concern the
random surface representation of the strong coupling expansion in lattice
multicolour gauge theory in any dimension. Our old idea of modified strong
coupling expansion in t... | 1993-08-27 | 2016-11-03 | [
"hep-th"
] | Vladimir Kazakov |
hep-th/9308128 | A Ten-Dimensional Super-Yang-Mills Action with Off-Shell Supersymmetry | After adding seven auxiliary scalar fields, the action for ten-dimensional
super-Yang-Mills contains an equal number of bosonic and fermionic non-gauge
fields. Besides being manifestly Lorentz and gauge-invariant, this action
contains nine spacetime supersymmetries whose algebra closes off-shell.
Octonions provide a co... | 1993-08-27 | 2009-10-22 | [
"hep-th"
] | Nathan Berkovits |
hep-th/9308138 | Some quantum analogues of solvable Lie groups | In this paper we analyze the structure of some subalgebras of quantized
enveloping algebras corresponding to unipotent and solvable subgroups of a
simple Lie group G. These algebras have the non--commutative structure of
iterated algebras of twisted polynomials with a derivation, an object which has
often appeared in t... | 1993-08-27 | 2008-02-03 | [
"hep-th",
"math.QA"
] | C. De Concini, Victor G. Kac, and C. Procesi |
hep-th/9308130 | Conformal- and Thermodynamic Properties of a Family of Thirring-like
Models | We investigate Thirring-like models containing fermionic and scalar fields
propagating in 2-dimensional space time. The corresponding conformal algebra is
studied and we disprove a conjecture relating the finite size effects to the
central charge. Some new results concerning the fermionic determinant on the
torus with ... | 1993-08-27 | 2009-10-22 | [
"hep-th"
] | I. Sachs, A. Wipf and A. Dettki |
hep-th/9308136 | Proof of Jacobi identity in generalized quantum dynamics | We prove that the Jacobi identity for the generalized Poisson bracket is
satisfied in the generalization of Heisenberg picture quantum mechanics
recently proposed by one of us (SLA). The identity holds for any combination of
fermionic and bosonic fields, and requires no assumptions about their mutual
commutativity. | 1993-08-27 | 2010-11-01 | [
"hep-th"
] | S.L. Adler, G.V. Bhanot, J.D. Weckel |
hep-th/9308123 | Fixed Point Structure for 3 dimensional rigid string | We show that the usual fixed point for 3-d rigid string with topological term
appears to be a trivial one, consisting of two decoupled conformal field
theories. We further argue that by involving an additional term allowed by
symmetries and thus generated by RG, the theory appears to exhibit a new fixed
point with expe... | 1993-08-26 | 2007-05-23 | [
"hep-th"
] | Weidong Zhao |
hep-th/9308121 | Extending the Theory of Random Surfaces | The theory of embedded random surfaces, equivalent to two--dimensional
quantum gravity coupled to matter, is reviewed, further developed and partly
generalized to four dimensions. It is shown that the action of the Liouville
field theory that describes random surfaces contains terms that have not been
noticed previousl... | 1993-08-26 | 2007-05-23 | [
"hep-th"
] | Christof Schmidhuber, Caltech Ph.D. thesis |
hep-th/9308122 | Mirror Symmetry, Mirror Map and Applications to Calabi-Yau Hypersurfaces | Mirror Symmetry, Picard-Fuchs equations and instanton corrected Yukawa
couplings are discussed within the framework of toric geometry. It allows to
establish mirror symmetry of Calabi-Yau spaces for which the mirror manifold
had been unavailable in previous constructions. Mirror maps and Yukawa
couplings are explicitly... | 1993-08-26 | 2010-11-01 | [
"hep-th",
"alg-geom",
"math.AG"
] | S. Hosono (1), A. Klemm (2), S. Theisen (2), S.-T. Yau (1) ((1) Dept.
of Mathematics, Harvard University; (2) Sektion Physik der Universit\"at
M\"unchen) |
hep-th/9308127 | Twisting to Abelian BF/Chern-Simons Theories | Starting from a $D=3$, $N=4$ supersymmetric theory for matter fields, a twist
with a Grassmann parity change is defined which maps the theory into a gauge
fixed, abelian $BF$ theory on curved 3-manifolds. After adding surface terms to
this theory, the twist is seen to map the resulting supersymmetric action to
two unco... | 1993-08-26 | 2009-10-22 | [
"hep-th"
] | R. Brooks, J.-G. Demers and C. Lucchesi |
hep-th/9308125 | Liouville Theory: Quantum Geometry of Riemann Surfaces | Inspired by Polyakov's original formulation of quantum Liouville theory
through functional integral, we analyze perturbation expansion around a
classical solution. We show the validity of conformal Ward identities for
puncture operators and prove that their conformal dimension is given by the
classical expression. We a... | 1993-08-26 | 2015-06-26 | [
"hep-th"
] | Leon Takhtajan |
hep-th/9308126 | Topological Field Theory As The Key To Quantum Gravity | Motivated by the similarity between CSW theory and the Chern Simons state for
General Relativity in the Ashtekar variables, we explore what the universe
would look like if it were in a state corresponding to a 3D TQFT. We end up
with a construction of propagating ststes for parts of the universe and a
Hilbert space cor... | 1993-08-26 | 2007-05-23 | [
"hep-th"
] | Louis Crane |
hep-th/9308120 | Running Coupling Constants in 2D Gravity | The renormalization group flow in two--dimensional field theories that are
coupled to gravity is discussed at the example of the sine-Gordon model. In
order to derive the phase diagram in agreement with the matrix model results,
it is necessary to generalize the theory of David, Distler and Kawai. | 1993-08-26 | 2007-05-23 | [
"hep-th"
] | Christof Schmidhuber |
hep-th/9308117 | The Consistency of Topological Expansions in Field Theory: `BRST
Anomalies' in Strings and Yang-Mills | Many field theories of physical interest have configuration spaces consisting
of disconnected components. Quantum mechanical amplitudes are then expressed as
sums over these components. We use the Faddeev-Popov approach to write the
terms in this topological expansion as moduli space integrals. A cut-off is
needed when... | 1993-08-25 | 2009-10-22 | [
"hep-th"
] | Paul Mansfield |
hep-th/9308116 | Continuum Strong Coupling Expansion of Yang-Mills Theory: Quark
Confinement and Infra-Red Slavery | We solve Schr\"odinger's equation for the ground-state of {\it
four}-dimensional Yang-Mills theory as an expansion in inverse powers of the
coupling. Expectation values computed with the leading order approximation are
reduced to a calculation in {\it two}-dimensional Yang-Mills theory which is
known to confine. Conseq... | 1993-08-25 | 2008-11-26 | [
"hep-th"
] | Paul Mansfield |
hep-th/9308119 | Coherent States, Dynamics and Semiclassical Limit on Quantum Groups | Coherent states on the quantum group $SU_q(2)$ are defined by using harmonic
analysis and representation theory of the algebra of functions on the quantum
group. Semiclassical limit $q\rightarrow 1$ is discussed and the crucial role
of special states on the quantum algebra in an investigation of the
semiclassical limit... | 1993-08-25 | 2010-11-01 | [
"hep-th"
] | I.Ya. Aref'eva, R. Parthasarathy, K.S. Viswanathan and I.V. Volovich |
hep-th/9308118 | Quantum Limits in Interferometric GW Antennas in the Presence of Even
and Odd coherent states | We discuss a model for interferometric GW antennas without dissipative or
active elements.
It is predicted that the even and odd coherent states may play an alternative
role to squeezed vacuum states in reducing the optimal power of the input
laser. | 1993-08-25 | 2009-10-22 | [
"hep-th"
] | Nadeem A. Ansari, L. Di Fiore, M. A. Man'ko, V.I. Man'ko, S. Solimeno
and F. Zaccaria |
hep-th/9308115 | Consistent axial--like gauge fixing on hypertori | We analyze the Gribov problem for $\SU(N)$ and $\U(N)$ Yang-Mills fields on
$d$-dimensional tori, $d=2,3,\ldots$. We give an improved version of the axial
gauge condition and find an infinite, discrete group
$\cG'=\Z^{dr}\rtimes({\Z_2}^{N-1}\rtimes\Z_2)$, where $r=N-1$ for $\GG=\SU(N)$
and $r=N$ for $\GG=\U(N)$, contai... | 1993-08-25 | 2010-11-01 | [
"hep-th"
] | Edwin Langmann, Manfred Salmhofer and Alex Kovner |
hep-th/9308111 | Mechanics as Geometry? | Talk given at the Workshop on "Constraint Theory and Quantization Methods";
Montepulciano, Italy, June 1993 --- Instead of attempting to give a summary or
to identify highlights of the workshop, the history of the development of
analytical mechanics is outlined, with an emphasis on the themes of \lq natural
motion' and... | 1993-08-24 | 2007-05-23 | [
"hep-th"
] | John M Charap |
hep-th/9308114 | Higher-spin strings and W minimal models | We study the spectrum of physical states for higher-spin generalisations of
string theory, based on two-dimensional theories with local spin-2 and spin-$s$
symmetries. We explore the relation of the resulting effective Virasoro string
theories to certain $W$ minimal models. In particular, we show how the
highest-weight... | 1993-08-24 | 2010-04-06 | [
"hep-th"
] | H. Lu, C.N. Pope, K. Thielemans and X.J. Wang |
hep-th/9308112 | A Problem with Non-Abelian Duality | We investigate duality transformations in a class of backgrounds with
non-Abelian isometries, i.e. Bianchi-type (homogeneous) cosmologies in
arbitrary dimensions. Simple duality transformations for the metric and the
antisymmetric tensor field, generalizing those known from the Abelian isometry
(Bianchi I) case, are ob... | 1993-08-24 | 2009-10-22 | [
"hep-th"
] | M. Gasperini R. Ricci G. Veneziano |
hep-th/9308110 | Conformal Invariance in Classical Field Theory | A geometric generalization of first-order Lagrangian formalism is used to
analyse a conformal field theory for an arbitrary primary field. We require
that global conformal transformations are Noetherian symmetries and we prove
that the action functional can be taken strictly invariant with respect to
these transformati... | 1993-08-24 | 2015-06-26 | [
"hep-th"
] | D. R. Grigore |
hep-th/9308113 | Flows for rectangular matrix models | Several new results on the multicritical behavior of rectangular matrix
models are presented. We calculate the free energy in the saddle point
approximation, and show that at the triple-scaling point, the result is the
same as that derived from the recursion formulae. In the triple-scaling limit,
we obtain the string e... | 1993-08-24 | 2010-11-01 | [
"hep-th"
] | Rene Lafrance and Robert C. Myers |
hep-th/9308106 | Free and self-interacting scalar fields in the presence of conical
singularities | Free and self-interacting scalar fields in the presence of conical
singularities are analized in some detail. The role of such a kind of
singularities on free and vacuum energy and also on the one-loop effective
action is pointed out using $\zeta$-function regularization and heat-kernel
techniques. | 1993-08-23 | 2009-10-22 | [
"hep-th"
] | Guido Cognola, Klaus Kirsten and Luciano Vanzo |
hep-th/9308109 | Quadrics on Complex Riemannian Spaces of Constant Curvature, Separation
of Variables and the Gaudin Magnet | We consider integrable systems that are connected with orthogonal separation
of variables in complex Riemannian spaces of constant curvature. An isomorphism
with the hyperbolic Gaudin magnet, previously pointed out by one of us, extends
to coordinates of this type. The complete classification of these separable
coordin... | 1993-08-23 | 2012-08-27 | [
"hep-th"
] | E.G.Kalnins, V.B.Kuznetsov and Willard Miller, Jr |
hep-th/9308108 | A search for exact superstring vacua | We investigate $2d$ sigma-models with a $2+N$ dimensional Minkowski signature
target space metric and Killing symmetry, specifically supersymmetrized, and
see under which conditions they might lead to corresponding exact string vacua.
It appears that the issue relies heavily on the properties of the vector
$M_{\mu}$, a... | 1993-08-23 | 2007-05-23 | [
"hep-th"
] | A. Petermann, A. Zichichi |
hep-th/9308107 | Illusory Quantum Hair | We analyze the quantum hair model proposed recently by Coleman,
Preskill and Wilczek. We give arguments suggesting that the potential hair is
expected to be destroyed by the instability of the black-hole. We also discuss
the general implications of such arguments on the prospects for formulating a
quantum extension o... | 1993-08-23 | 2007-05-23 | [
"hep-th"
] | A. Casher and O. Pelc |
hep-th/9308105 | Constructing N=2 Superconformal Algebras out of N=1 Affine Lie Algebras | We study the problem of constructing N=2 superconformal algebras out of an
N=1 affine Lie algebra. Following a recent independent observation of Getzler
and the author, we derive a simplified set of N=2 master equations, which we
then proceed to solve for the case of sl(2). There is a unique construction for
all noncri... | 1993-08-22 | 2020-10-19 | [
"hep-th"
] | Jos\'e M. Figueroa-O'Farrill |
hep-th/9308104 | An approach to quantum gravity from 4-$\epsilon$ dimension | A calculational scheme of quantum-gravitational effects on the physical
quantities is proposed. The calculations are performed in 4-$\epsilon$
dimension with $1/N$-expansion scheme, where the Einstein gravity is
renormalizable and it has an ultraviolet fixed-point within the 1/N-expansion.
In order to perform a consist... | 1993-08-21 | 2009-10-22 | [
"hep-th"
] | Kazuo Ghoroku |
hep-th/9308103 | Statistical Mechanics of Kinks in (1+1)-Dimensions: Numerical
Simulations and Double Gaussian Approximation | We investigate the thermal equilibrium properties of kinks in a classical
$\F^4$ field theory in $1+1$ dimensions. From large scale Langevin simulations
we identify the temperature below which a dilute gas description of kinks is
valid. The standard dilute gas/WKB description is shown to be remarkably
accurate below th... | 1993-08-21 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | Francis J. Alexander, Salman Habib, and Alex Kovner |
hep-th/9308098 | Chiral Splitting at Work | Second-order equations of motion on a group manifold that appear in a large
class of so-called chiral theories are presented. These equations are presented
and explicitely solved for cases of semi-simple, finite-dimensional Lie groups.
With three figures avaliable from the authors upon request. | 1993-08-20 | 2007-05-23 | [
"hep-th"
] | Z.Hasiewicz and P.Siemion |
hep-th/9308101 | The KP Equation from Plebanski and $SU(\infty)$ Self-Dual Yang-Mills | Starting from a self-dual $SU(\infty)$ Yang-Mills theory in $(2+2)$
dimensions, the Plebanski second heavenly equation is obtained after a suitable
dimensional reduction. The self-dual gravitational background is the cotangent
space of the internal two-dimensional Riemannian surface required in the
formulation of $SU(\... | 1993-08-20 | 2007-05-23 | [
"hep-th"
] | Carlos Castro (I.A.E.C 1407 Alegria, Austin, Texas USA) |
hep-th/9308100 | Gedanken Experiments involving Black Holes | Analysis of several gedanken experiments indicates that black hole
complementarity cannot be ruled out on the basis of known physical principles.
Experiments designed by outside observers to disprove the existence of a
quantum-mechanical stretched horizon require knowledge of Planck-scale effects
for their analysis. Ob... | 1993-08-20 | 2009-10-07 | [
"hep-th"
] | L. Susskind and L. Thorlacius |
hep-th/9308097 | Positive Definite Gravitational Action, Cosmological Constant and
Superstring Theory | We use the recently discovered universality of Einstein equations in the
first order formalism to suggest a positive definite Euclidean action. Possible
implications for quantum gravity are considered. We discuss the Hawking and
Coleman approach to the vanishing of the cosmological constant by using the new
action and ... | 1993-08-20 | 2007-05-23 | [
"hep-th",
"gr-qc"
] | I.V.Volovich |
hep-th/9308095 | Weyl Invariance and Spurious Black Hole in Two-Dimensional Dilaton
Gravity | In two-dimensional dilaton gravity theories, there may exist a global Weyl
invariance which makes black hole spurious. If the global invariance and the
local Weyl invariance of the matter coupling are intact at the quantum level,
there is no Hawking radiation. We explicitly verify the absence of anomalies in
these symm... | 1993-08-20 | 2015-06-26 | [
"hep-th"
] | Takanori Fujiwara, Yuji Igarashi and Jisuke Kubo |
hep-th/9308099 | Simplicial Gravity Coupled to Scalar Matter | A model for quantized gravity coupled to matter in the form of a single
scalar field is investigated in four dimensions. For the metric degrees of
freedom we employ Regge's simplicial discretization, with the scalar fields
defined at the vertices of the four-simplices. We examine how the continuous
phase transition fou... | 1993-08-20 | 2009-10-22 | [
"hep-th"
] | Herbert W. Hamber (UC Irvine) and Ruth M. Williams (DAMTP, Cambridge) |
hep-th/9308102 | W Gravity, $N=2$ Strings and $ 2+2~SU^*(\infty)$ | We conjecture that $W$ gravity can be interpreted as the gauge theory of
$\phi$ diffeomorphisms in the space of dimensionally-reduced $D=2+2$
$SU^*(\infty)$ Yang-Mills instantons. These $\phi$ diffeomorphisms preserve a
volume-three form and are those which furnish the correspondence between the
dimensionally-reduced P... | 1993-08-20 | 2009-10-22 | [
"hep-th"
] | Yang-Mills Instantons Carlos Castro (I.A.E.C 1407 Alegria, Austin,
Texas Usa) |
hep-th/9308092 | A New Solution of the Yang-Baxter Equation Related to the Adjoint
Representation of $U_{q}B_{2}$ | A new solution of the Yang-Baxter equation, that is related to the adjoint
representation of the quantum enveloping algebra $U_{q}B_{2}$, is obtained by
fusion formulas from a non-standard solution. | 1993-08-19 | 2009-10-22 | [
"hep-th"
] | Zhong-Qi Ma and An-Ying Dai |
hep-th/9308094 | Geometrical String and Spin Systems | We formulate a new geometrical string on the euclidean lattice. It is
possible to find such spin systems with local interaction which reproduce the
same surface dynamics.In the three-dimensional case this spin system is a usual
Ising ferromagnet with additional diagonal antiferromagnetic interaction and
with specially ... | 1993-08-19 | 2009-10-22 | [
"hep-th"
] | G.K.Savvidy and F.J.Wegner |
hep-th/9308093 | Quantum Braided Poincar\'E Group | A new deformation of the of the Poincar\'e group and of the Minkowski
space-time is given. From the mathematical point of view this deformation is
rather quantum-braided group. Global and local structure of this
quantum-braided Poincar\'e group is investigated. A kind of ``quantum metrics''
is introduced in the $q$-Min... | 1993-08-19 | 2007-05-23 | [
"hep-th"
] | J. Rembielinski |
hep-th/9308091 | Fluid Random Surfaces with Extrinsic Curvature: II | We present the results of an extension of our previous work on large-scale
simulations of dynamically triangulated toroidal random surfaces embedded in
$R^3$ with extrinsic curvature. We find that the extrinsic-curvature specific
heat peak ceases to grow on lattices with more than 576 nodes and that the
location of the... | 1993-08-19 | 2009-10-22 | [
"hep-th",
"hep-lat"
] | Konstantinos Anagnostopoulos, Mark Bowick, Paul Coddington, Marco
Falcioni, Leping Han, Geoffrey Harris and Enzo Marinari |
hep-th/9308096 | q-Oscillators, q-Epsilon Tensor, q-Groups | Considering a multi-dimensional $q$-oscillator invariant under the (non
quantum) group $U(n)$, we construct a $q$-deformed Levi-Civita epsilon tensor
from the inner product states. The invariance of this $q$-epsilon tensor is
shown to yield the quantum group $SL_{q}(n)$ and establishes the relationship
of the $U(n)$ in... | 1993-08-19 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Metin Arik, Gokhan Unel and Muhittin Mungan |
hep-th/9308088 | The Search for Supersymmetry Anomalies--Does Supersymmetry Break Itself?
-- | The established results concerning the BRS cohomology of supersymmetric
theories in four space-time dimensions are briefly reviewed. The current status
of knowledge concerning supersymmetry anomalies and the possibility that
supersymmetry breaks itself through anomalies in local composite operators is
then discussed.
... | 1993-08-18 | 2007-05-23 | [
"hep-th",
"hep-ph"
] | J. A. Dixon |
hep-th/9308090 | Supergravity Coupled to Chiral Matter at One Loop | We extend earlier calculations of the one-loop contributions to the effective
bose Lagrangian in supergravity coupled to chiral matter. We evaluate all
logarithmically divergent contributions for arbitrary background scalar fields
and space-time metric. We show that, with a judicious choice of gauge fixing
and of the d... | 1993-08-18 | 2009-10-22 | [
"hep-th",
"hep-ph"
] | \Mary K. Gaillard and Vidyut Jain |
hep-th/9308086 | The Conserved Charges and Integrability of the Conformal Affine Toda
Models | We construct infinite sets of local conserved charges for the conformal
affine Toda model. The technique involves the abelianization of the
two-dimensional gauge potentials satisfying the zero-curvature form of the
equations of motion. We find two infinite sets of chiral charges and apart from
two lowest spin charges a... | 1993-08-18 | 2009-10-22 | [
"hep-th",
"nlin.SI",
"solv-int"
] | H. Aratyn, L.A. Ferreira, J.F. Gomes and A.H. Zimerman |
hep-th/9308089 | QED Corrections to Planck's Radiation Law and Photon Thermodynamics | Leading corrections to Planck's formula and photon thermodynamics arising
from the pair-mediated photon-photon interaction are calculated. This
interaction is attractive and causes an increase in occupation number for all
modes. Possible consequences, including the role of the cosmic photon gas in
structure formation, ... | 1993-08-18 | 2009-10-22 | [
"hep-th",
"astro-ph"
] | M. Hossein Partovi |
hep-th/9308084 | Charged Particle System in Uniform Magnetic and Electric Fields: The
Role of Galilean Transformation | Galilean transformation relates a physical system under mutually
perpendicular uniform magnetic and electric fields to that under uniform
magnetic field only. This allows a complete specification of quantum states in
the former case in terms of those for the latter. Based on this observation, we
consider the Hall effec... | 1993-08-18 | 2007-05-23 | [
"hep-th",
"cond-mat"
] | Chanju Kim and Choonkyu Lee |
hep-th/9308083 | Mirror Symmetry for Two Parameter Models -- I | We study, by means of mirror symmetry, the quantum geometry of the
K\"ahler-class parameters of a number of Calabi-Yau manifolds that have
$b_{11}=2$. Our main interest lies in the structure of the moduli space and in
the loci corresponding to singular models. This structure is considerably
richer when there are two pa... | 1993-08-18 | 2009-10-22 | [
"hep-th",
"alg-geom",
"math.AG"
] | Philip Candelas, Xenia de la Ossa, Anamaria Font, Sheldon Katz and
David R. Morrison |
hep-th/9308085 | Local modes, local vacuum, local bogoljubov coefficients and the
renormalised stress tensor | Local modes and local particles are defined at any point in curved space time
as those that most resemble Minkowsky modes at that point. It is shown that the
renormalised stress tensor is the difference of energy between the physical
vacuum and that defined by these local modes. | 1993-08-18 | 2011-04-15 | [
"hep-th"
] | S. Massar |
hep-th/9308087 | Volume-forms and Minimal Action Principles in Affine Manifolds | Through the analyses of volume-forms in differentiable manifolds, it is shown
that the usual way of defining minimal action principles for field theory on
curved space-times is not appropriate on non-riemannian manifolds. An
alternative approach, based in a new volume-form, is proposed and confronted
with the standard ... | 1993-08-18 | 2009-10-22 | [
"hep-th"
] | A.Saa |
hep-th/9308080 | Quantum Non-abelian Toda Field Theories | We derive an explicit, exactly conformally invariant form for the action for
the non-abelian Toda field theory. We demonstrate that the conformal invariance
conditions, expressed in terms of the $\beta$-functions of the theory, are
satisfied to all orders, and we use our results to obtain a value for the
central charge... | 1993-08-17 | 2015-06-26 | [
"hep-th"
] | I. Jack, D. R. T. Jones and J. Panvel |
hep-th/9308079 | Quasi-particles models for the representations of Lie algebras and
geometry of flag manifold | We give a new interpretation and proof of the "quasi-particle" type character
formulas for integrable representations of the simply-laced affine Kac-Moody
algebras through a new "semi-infinite" construction of such representations. We
compare formulas of this kind to other formulas obtained using the geometry of
the co... | 1993-08-17 | 2009-10-14 | [
"hep-th",
"math.QA"
] | Boris Feigin and A. V. Stoyanovsky |
hep-th/9308081 | Towards the Classification of Exactly Solvable Feynman Path Integrals:
$\delta$-Function Perturbations and Boundary-Problems as Miscellaneous
Solvable Models | Invited talk given at the ``International Workshop on `Symmetry Methods in
Physics' in memory of Ya.\ A.\ Smorodinsky, 5--10 July 1993, Dubna, Russia; to
appear in the proceedings. In this contribution I present further results on
steps towards a Table of Feynman Path Integrals. Whereas the usual path
integral solution... | 1993-08-17 | 2007-05-23 | [
"hep-th"
] | Christian Grosche |
hep-th/9308082 | Path Integral Discussion of Two and- Three-Dimensional $\delta$-Function
Perturbations | The incorporation of two- and three-dimensional $\delta$-function
perturbations into the path-integral formalism is discussed. In contrast to the
one-dimensional case, a regularization procedure is needed due to the
divergence of the Green-function $G^{(V)}(\vec x,\vec y;E)$, ($\vec x,\vec
y\in\bbbr^2,\bbbr^3$) for $\v... | 1993-08-17 | 2009-10-22 | [
"hep-th"
] | Christian Grosche |
hep-th/9308077 | Duality Invariance of the Hawking Temperature and Entropy | We consider solutions to low energy string theory which have a horizon and a
spacelike symmetry. Each of these solutions has a geometrically different dual
description. We show that the dual solution has a horizon with exactly the same
Hawking temperature (surface gravity) and entropy (area) as the original
solution. | 1993-08-16 | 2009-12-30 | [
"hep-th",
"gr-qc"
] | Gary T. Horowitz and Dean L. Welch |
hep-th/9308076 | BV analysis for covariant and non-covariant actions | The equivalence between the covariant and the non-covariant version of a
constrained system is shown to hold after quantization in the framework of the
field-antifield formalism. Our study covers the cases of Electromagnetism and
Yang-Mills fields and sheds light on some aspects of the Faddeev-Popov method,
for both th... | 1993-08-16 | 2009-10-22 | [
"hep-th"
] | C. Ord\'o\~nez, J.Par\'is, J.M. Pons and R. Toldr\`a |
hep-th/9308073 | On Calculation of $2+\veps$ RG Functions in the Gross Neveu Model from
Large $N$ Expansions of Critical Exponents | Using knowledge of the explicit $n$ dependence of the RG functions and
expressions of critical exponents in the framework of large $N$ expansion in
the Gross Neveu model we derive RG functions in 4- and 5-loop approximation. | 1993-08-16 | 2009-10-22 | [
"hep-th"
] | N.A. Kivel, A.S. Stepanenko, A.N. Vasil'ev |
hep-th/9308070 | On Coarse-grained Entropy and Stimulated Emission in Curved Space-Time | We study the entropy generation and particle production in scalar quantum
field theory in expanding spacetimes with many-particle mixed initial states.
The recently proposed coarse-grained entropy approach by Brandenberger et. al.
is applied to systems which may have a non-zero initial entropy. We find that
although th... | 1993-08-16 | 2009-10-22 | [
"hep-th"
] | Esko Keski-Vakkuri |
hep-th/9308074 | On the definiteness of the conformal anomaly in nonconformal gauges | The critical dimension of the bosonic string in the harmonic and the deDonder
gauge may be calculated from the time ordered product of two energy momentum
tensors. We show that recently found ambiguities within that method in
nonconformal gauges can be resolved by a treatment respecting background
covariance. | 1993-08-16 | 2009-10-22 | [
"hep-th"
] | W. M\"odritsch |
hep-th/9308072 | Glueing operation for r-matrices, quantum groups and link-invariants of
Hecke type | We introduce an associative glueing operation $\oplus_q$ on the space of
solutions of the Quantum Yang-Baxter Equations of Hecke type. The corresponding
glueing operations for the associated quantum groups and quantum vector spaces
are also found. The former involves $2\times 2$ quantum matrices whose entries
are thems... | 1993-08-16 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Shahn Majid and Martin Markl |
hep-th/9308071 | Hamiltonian formulation of SL(3) Ur-KdV equation | We give a unified view of the relation between the $SL(2)$ KdV, the mKdV, and
the Ur-KdV equations through the Fr\'{e}chet derivatives and their inverses.
For this we introduce a new procedure of obtaining the Ur-KdV equation, where
we require that it has no non-local operators. We extend this method to the
$SL(3)$ KdV... | 1993-08-16 | 2010-02-05 | [
"hep-th",
"nlin.SI",
"solv-int"
] | B. K. Chung, K. G. Joo, and Soonkeon Nam |
hep-th/9308078 | First Reduce or First Quantize? A Lagrangian Approach and Application to
Coset Spaces | A Lagrangian treatment of the quantization of first class Hamiltonian systems
with constraints and Hamiltonian linear and quadratic in the momenta
respectively is performed. The ``first reduce and then quantize'' and the
``first quantize and then reduce'' (Dirac's) methods are compared. A new source
of ambiguities in t... | 1993-08-16 | 2007-05-23 | [
"hep-th"
] | C. Ord\'o\~nez y J.M Pons |
hep-th/9308075 | Twenty Years of the Weyl Anomaly | In 1973 two Salam prot\'{e}g\'{e}s (Derek Capper and the author) discovered
that the conformal invariance under Weyl rescalings of the metric tensor
$g_{\mu\nu}(x)\rightarrow\Omega^2(x)g_{\mu\nu}(x)$ displayed by classical
massless field systems in interaction with gravity no longer survives in the
quantum theory. Sinc... | 1993-08-16 | 2010-04-06 | [
"hep-th",
"gr-qc"
] | M. J. Duff |
hep-th/9308069 | Information Retrieval from a Charge `Trap' | We study the model of massless $1+1$ electrodynamics with nonconstant
coupling, introduced by Peet, Susskind and Thorlacius as the `charge hole'. But
we take the boundary of the strong coupling region to be first timelike, then
spacelike for a distance $X$, and then timelike again (to mimic the structure
of a black hol... | 1993-08-15 | 2007-05-23 | [
"hep-th"
] | Samir D. Mathur |
hep-th/9308067 | Generalized Gauged Thirring Model on Curved Space-Times | We analyse the interacting theory of charged fermions, scalars,
pseuso-scalars and photons propagating in 2-dimensional curved spacetime in
detail. For certain values of the coupling constants the theory reduces to the
gauged Thirring model and for others the Schwinger model incurved spacetime. It
is shown that the int... | 1993-08-13 | 2007-05-23 | [
"hep-th"
] | A. Dettki, I. Sachs and A. Wipf |
hep-th/9308063 | An Extension of Type I Gaugeon Formalism for Quantum Electrodynamics | By introducing two kinds of gaugeon fields, we extend Yokoyama's Type I
gaugeon formalism for quantum electrodynamics. The theory admits a q-number
gauge transformation by which we can shift the gauge parameter into arbitrary
numerical value; whereas in the original theory we cannot change the sign of
the parameter. Th... | 1993-08-13 | 2017-02-01 | [
"hep-th"
] | R. Endo |
hep-th/9308068 | Non-Abelian Cornucopions | An infinite family of cornucopions is found within the $SU(2)\times U(1)$
sector of the 4--d heterotic string low-energy theory, the extremal $U(1)$
magnetic dilatonic black hole being the lowest energy state. Non-abelian
cornucopions are interpreted as sphalerons associated with potential barriers
separating topologic... | 1993-08-13 | 2007-05-23 | [
"hep-th"
] | E.E. Donets, D.V. Gal'tsov, M.S.Volkov |
hep-th/9308062 | Perturbation of the Ground Varieties of C = 1 String Theory | We discuss the effect of perturbations on the ground rings of $c=1$ string
theory at the various compactification radii defining the $A_N$ points of the
moduli space. We argue that perturbations by plus-type moduli define ground
varieties which are equivalent to the unperturbed ones under redefinitions of
the coordinat... | 1993-08-13 | 2010-11-01 | [
"hep-th"
] | Debashis Ghoshal, Porus Lakdawala and Sunil Mukhi |
hep-th/9308064 | Long-distance properties of frozen U(1) Higgs and axially U(1)-gauged
four-Fermi models in $1+1$ dimensions | We study the long-distance relevance of vortices (instantons) in an
$N$-component axially U(1)-gauged four-Fermi theory in $1+1$ dimensions, in
which a naive use of $1/N$ expansion predicts the dynamical Higgs phenomenon.
Its general effective lagrangian is found to be a frozen U(1) Higgs model with
the gauge-field mas... | 1993-08-13 | 2007-05-23 | [
"hep-th"
] | Hisashi Yamamoto |
hep-th/9308066 | Supersymmetric Calculation of Mixed K\"{a}HLER-Gauge and Mixed
K\"{a}HLER-Lorentz Anomalies | We present a manifestly supersymmetric procedure for calculating the
contributions from matter loops to the mixed K\"{a}hler-gauge and to the mixed
K\"{a}hler- Lorentz anomalies in $N=1, D=4$ supergravity-matter systems. We
show how this procedure leads to the well-known result for the mixed
K\"{a}hler-gauge anomaly. F... | 1993-08-13 | 2007-05-23 | [
"hep-th"
] | Gabriel Lopes Cardoso and Burt A. Ovrut |
hep-th/9308065 | Regular representations of affine Kac-Moody algebras | In this paper we investigate one Wakimoto-type construction of affine Kac-Moody algebras. We obtain a version of the regular representation, on which the affine algebra acts from the left and from the right with the sum of levels equal to minus two dual Coxeter numbers. | 1993-08-13 | 2025-09-09 | [
"hep-th"
] | B. Feigin, S. Parkhomenko |
hep-th/9308059 | A Model of Quantum Space-Time Symmetry in Two Dimensions | An example of a toy model of $D=2$ Minkowski space and Poincar\'e group with
real deformation parameter $q$ is considered. A notion of free motion is
defined. The kinematics and phase-space are constructed and the
``uncertainity'' ralations are found. | 1993-08-12 | 2007-05-23 | [
"hep-th"
] | Kordian Andrzej Smolinski |
hep-th/9308060 | Dynamical $r$-matrices for the Elliptic Calogero-Moser Model | For the integrable $N$-particle Calogero-Moser system with elliptic potential
it is shown that the Lax operator found by Krichever possesses a classical
$r$-matrix structure. The $r$-matrix is a natural generalisation of the matrix
found recently by Avan and Talon (hep-th/9210128) for the trigonometric
potential. The $... | 1993-08-12 | 2008-02-03 | [
"hep-th",
"nlin.SI",
"solv-int"
] | E.K.Sklyanin |
hep-th/9308056 | Once More about Spectral-Dependent Quantum $R$-Matrix for $U_q(A_2)$ | The recently obtained results in \cite{ZG2} are used to compute the
explicitly spectral-dependent $R$-matrix (or the intertwiners) on
$V_{(6)}(x)\otimes V_{(6)}(y)$ and $V_{(3)}(x)\otimes V_{(6)}(y)$, where
$V_{(6)}$ and $V_{(3)}$ are the 6-dimensional and fundamental representations
of $U_q(A_2)$, respectively. It app... | 1993-08-12 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Anthony J. Bracken, Mark D. Gould and Yao-Zhong Zhang |
hep-th/9308057 | Stress-Energy Tensor and Ultraviolet Behaviour in Massive Integrable
Quantum Field Theories | The short distance behaviour of massive integrable quantum field theories is
analyzed in terms of the form factor approach. We show that the on-shell
dynamics is compatible with different definitions of the stress-energy tensor
$T_{\mu\nu}(x)$ of the theory. In terms of form factors, this is equivalent to
having a poss... | 1993-08-12 | 2015-06-26 | [
"hep-th"
] | G. Mussardo and P. Simonetti |
hep-th/9308058 | Two-Dimensional Quantum Poincar\'E Group | Quantum Poincar\'e-Weyl group in two dimensional quantum Minkowski space-time
is considered and an appriopriate relativistic kinematics is investigated. It
is claimed that a consistent approach to the above questions demands a kind of
a ``quantum geometry'' in the $q$-deformed space-time. | 1993-08-12 | 2008-02-03 | [
"hep-th"
] | Jakub Rembielinski & Waclaw Tybor |
hep-th/9308061 | The Reality and Measurement of the Wavefunction | Using a simple version of the model for the quantum measurement of a two
level system, the contention of Aharonov, Anandan, and Vaidman that one must in
certain circumstances give the wavefunction an ontological as well as an
epistemological significance is examined. I decide that their argument that the
wave function ... | 1993-08-12 | 2008-11-26 | [
"hep-th",
"gr-qc"
] | W.G. Unruh |
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