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/9211037 | A Master Equation for Multi-Dimensional Non-Linear Field Theories | A master equation ( $n$ dimensional non--Abelian current conservation law
with mutually commuting current components ) is introduced for
multi-dimensional non-linear field theories. It is shown that the master
equation provides a systematic way to understand 2-d integrable non-linear
equations as well as 4-d self-dual ... | 1992-11-09 | 2009-10-22 | [
"hep-th"
] | Q-Han Park |
hep-th/9211040 | Extended N=2 Superconformal Structure of Gravity and W-Gravity Coupled
to Matter | We show that almost all string theories, including the bosonic string, the
superstring and $W$-string theories, possess a twisted N=2 superconformal
symmetry. This enables us to establish a connection between topological gravity
and the field theoretical description of matter coupled to gravity. We also
show how the \b... | 1992-11-09 | 2009-10-22 | [
"hep-th"
] | M. Bershadsky, W. Lerche, D. Nemeschansky and N.P. Warner |
hep-th/9211041 | Wormholes and symmetries of string effective action | The dimensional reduction technique is adopted to derive string effective
action. Wormhole solutions corresponding to space-time geometries $R^1\times
S^1\times S^2$ and $R^1\times S^3$ are presented. The duality and SL(2,R)
symmetries are implemented to generate new wormhole solutions. | 1992-11-09 | 2009-10-22 | [
"hep-th"
] | S. Pratik Khastgir and Jnanadeva Maharana |
hep-th/9211038 | Renormalization Theory for Interacting Crumpled Manifolds | We consider a continuous model of D-dimensional elastic (polymerized)
manifold fluctuating in d-dimensional Euclidean space, interacting with a
single impurity via an attractive or repulsive delta-potential (but without
self-avoidance interactions). Except for D=1 (the polymer case), this model
cannot be mapped onto a ... | 1992-11-09 | 2007-05-23 | [
"hep-th",
"cond-mat"
] | F. David, B. Duplantier and E. Guitter |
hep-th/9211039 | 2D Supergravity and Integrable Systems | Integrable hierarchy based on the constrained Osp(2$\mid%2) connection is
considered. The connection with 2D supergravity and some analogies with the
W$_3^{(2)}$ case are given. It is shown that super Virasoro transformations are
symmetries of tha hierarchy. | 1992-11-09 | 2007-05-23 | [
"hep-th"
] | R.Ch.Rashkov |
hep-th/9211046 | Non-abelian gauge antisymmetric tensor fields | We construct the theory of non-abelian gauge antisymmetric tensor fields,
which generalize the standard Yang-MIlls fields and abelian gauge p-forms. The
corresponding gauge group acts on the space of inhomogeneous differential forms
and it is shown to be a supergroup. The wide class of generalized Chern-Simons
actions ... | 1992-11-09 | 2008-11-26 | [
"hep-th"
] | S.N.Solodukhin |
hep-th/9211036 | The Algebra of Differential Operators on the Circle and $W_{KP}^{(q)}$ | Radul has recently introduced a map from the Lie algebra of differential
operators on the circle to $W_n$. In this note we extend this map to
$W_{KP}^{(q)}$, a recently introduced one-parameter deformation of
$W_{KP}$---the second hamiltonian structure of the KP hierarchy. We use this to
give a short proof that $W_\inf... | 1992-11-08 | 2020-10-19 | [
"hep-th"
] | J.M. Figueroa-O'Farrill and E. Ramos |
hep-th/9211034 | Dilogarithm Identities in Conformal Field Theory | Dilogarithm identities for the central charges and conformal dimensions exist
for at least large classes of rational conformally invariant quantum field
theories in two dimensions. In many cases, proofs are not yet known but the
numerical and structural evidence is convincing. In particular, close relations
exist to fu... | 1992-11-06 | 2009-10-22 | [
"hep-th"
] | W. Nahm, A. Recknagel and M. Terhoeven |
hep-th/9211035 | Vortex Dynamics in Self-Dual Chern-Simons Higgs Systems | We consider vortex dynamics in self-dual Chern-Simons Higgs systems. We show
that the naive Aharanov-Bohm phase is the inverse of the statistical phase
expected from the vortex spin, and that the self-dual configurations of
vortices are degenerate in energy but not in angular momentum. We also use the
path integral for... | 1992-11-06 | 2009-10-22 | [
"hep-th"
] | Yoonbai Kim and Kimyeong Lee |
hep-th/9211031 | Unification of Gravity, Gauge and Higgs Fields by Confined Quantum
Fields II -Effective Theory- | Dynamics of quantized free fields ( of spin 0 and 1/2 ) contained in a
subspace $V_*$ of an N+4 dimensional flat space $V$ is studied. The space $V_*$
is considered as a neighborhood of a four dimensional submanifold $M$
arbitrarily embedded into $V$. We show that Einstein SO(N)-Yang-Mills Higgs
theory is induced as a ... | 1992-11-06 | 2009-10-22 | [
"hep-th"
] | Toshiki Isse |
hep-th/9211033 | Quantum symmetries in supersymmetric Toda theories | : We consider two--dimensional supersymmetric Toda theories based on the Lie
superalgebras $A(n,n)$, $D(n+1,n)$ and $B(n,n)$ which admit a fermionic set of
simple roots and a fermionic untwisted affine extension. In particular, we
concentrate on two simple examples, the $B(1,1)$ and $A(1,1)$ theories. Both in
the confo... | 1992-11-06 | 2007-05-23 | [
"hep-th"
] | Silvia Penati and Daniela Zanon |
hep-th/9211029 | Operator Formulation of q-Deformed Dual String Model | We present an operator formulation of the q-deformed dual string model
amplitude using an infinite set of q-harmonic oscillators. The formalism
attains the crossing symmetry and factorization and allows to express the
general n-point function as a factorized product of vertices and propagators. | 1992-11-05 | 2009-10-22 | [
"hep-th"
] | M. Chaichian, J.F. Gomes and P. Kulish |
hep-th/9211028 | On the Gupta-Bleuler Quantization of the Hamiltonian Systems with
Anomalies | As compared to the previous version, the example of Gupta-Bleuler
quantization of massive electrodynamics was added, and the derivation of path
integral for anomalous theories is further elaborated. This is the final
version to be published in Annals of Physics. | 1992-11-05 | 2011-07-19 | [
"hep-th"
] | J. Kowalski-Glikman |
hep-th/9211030 | Black Hole Remnants and the Information Puzzle | Magnetically charged dilatonic black holes have a perturbatively infinite
ground state degeneracy associated with an infinite volume throat region of the
geometry. A simple argument based on causality is given that these states do
not have a description as ordinary massive particles in a low-energy effective
field theo... | 1992-11-05 | 2009-09-17 | [
"hep-th"
] | T. Banks, M. O'Loughlin, and A. Strominger |
hep-th/9211032 | R matrix and bicovariant calculus for the inhomogeneous quantum groups
IGL_q(n) | We find the R matrix for the inhomogeneous quantum groups whose homogeneous
part is $GL_q(n)$, or its restrictions to $SL_q(n)$,$U_q(n)$ and $SU_q(n)$. The
quantum Yang-Baxter equation for R holds because of the Hecke relation for the
braiding matrix of the homogeneous subgroup. A bicovariant differential
calculus on $... | 1992-11-05 | 2009-10-22 | [
"hep-th"
] | Leonardo Castellani |
hep-th/9211020 | Hamiltonian Approach to $2D$ Supergravity | We study $2D$ supergravity in a covariant and gauge independent way. The
theory is obtained from $2D$ bosonic gravity following the square root method
and the diffeomorphism superalgebra is explicitly computed. We argue that our
approach could be a procedure for introducing nontrivial physics in quantum
$2D$ (super)gra... | 1992-11-04 | 2009-10-22 | [
"hep-th"
] | J. Gamboa and C. Ramirez |
hep-th/9211026 | Jordanian Solutions of Simplex Equations | We construct for all $N$ a solution of the Frenkel--Moore $N$--simplex
equation which generalizes the $R$--matrix for the Jordanian quantum group. | 1992-11-04 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Holger Ewen and Oleg Ogievetsky |
hep-th/9211016 | Conformally invariant off-shell string physics | Using recent advances in the understanding of non-critical strings, we
construct a unique, conformally invariant continuation to off-shell momenta of
Polyakov amplitudes in critical string theory. Three-point amplitudes are
explicitly calculated. These off-shell amplitudes possess some unusual,
apparently stringy, char... | 1992-11-04 | 2011-07-19 | [
"hep-th"
] | Robert C. Myers and Vipul Periwal |
hep-th/9211019 | Extended Superconformal Algebras from Classical and Quantum Hamiltonian
Reduction | We consider the extended superconformal algebras of the Knizhnik-Bershadsky
type with $W$-algebra like composite operators occurring in the commutation
relations, but with generators of conformal dimension 1,$\frac{3}{2}$ and 2,
only. These have recently been neatly classified by several groups, and we
emphasize the cl... | 1992-11-04 | 2007-05-23 | [
"hep-th"
] | K. Ito, J.O. Madsen and J.L. Petersen |
hep-th/9211015 | Entropy and Action of Dilaton Black Holes | We present a detailed calculation of the entropy and action of $U(1)~2$
dilaton black holes, and show that both quantities coincide with one quarter of
the area of the event horizon. Our methods of calculation make it possible to
find an explanation of the rule $S = A/4$ for all static, spherically symmetric
black hole... | 1992-11-04 | 2010-11-19 | [
"hep-th"
] | Renata Kallosh, Tomas Ortin and Amanda Peet |
hep-th/9211017 | Comments on Fractional Superstrings | Using the factorization approach of Gepner and Qiu, I systematically rederive
the closed fractional superstring partition functions for K= 4, 8, and 16. For
these theories the relationship between the massless graviton and gravi- tino
sector and the purely massive sectors is explored. Properties of the massive
sectors ... | 1992-11-04 | 2008-02-03 | [
"hep-th"
] | Gerald B. Cleaver |
hep-th/9211027 | Moduli and Twisted Sector Dependence of Z_N x Z_M Orbifold Couplings | We derive the four point correlation function involving four twist fields for
arbitrary even dimensional Z_N x Z_M orbifold compactifications. Using
techniques from the conformal field theory the three point correlation
functions with twist fields are determined. Both the choice of the modular
background (compatible wi... | 1992-11-04 | 2010-11-01 | [
"hep-th"
] | S. Stieberger |
hep-th/9211018 | Fusion and the Neveu-Schwarz Singular Vectors | Bauer, Di Francesco, Itzykson and Zuber proposed recently an algorithm to
construct all singular vectors of the Virasoro algebra. It is based on the
decoupling of (already known) singular fields in the fusion process. We show
how to extend their algorithm to the Neveu-Schwarz superalgebra. | 1992-11-04 | 2015-06-26 | [
"hep-th"
] | L. Benoit and Y. Saint-Aubin |
hep-th/9211023 | Approach to Quantum Group deformed Quantum Field Theory | In quantum field theory the creation and annihilation operators that are
located at the points in 3-momentum space have commutation relations that are
conserved under the action of a $U({\infty})$ group. Here it is shown how to
define an appropriate $U_q({\infty})$ which then leads to deformed commutation
relations. A ... | 1992-11-04 | 2007-05-23 | [
"hep-th"
] | Achim Kempf |
hep-th/9211021 | Pre-Big-Bang in String Cosmology | The duality-type symmetries of string cosmology naturally lead to a
pre-big-bang phase of accelerated evolution as dual counterpart of the
decelerated expansion of standard cosmology. We discuss several properties of
this scenario, including the possibility that tracks of the pre-big-bang may be
found either in the spe... | 1992-11-04 | 2011-05-23 | [
"hep-th"
] | M. Gasperini and G. Veneziano |
hep-th/9211024 | Discretization of the Superparticle Path Integral | Requiring that the path integral has the global symmetries of the classical
action and obeys the natural composition property of path integrals, and also
that the discretized action has the correct naive continuum limit, we find a
viable discretization of the (D=3,N=2) superparticle action. | 1992-11-04 | 2015-06-26 | [
"hep-th"
] | J. Grundberg, U. Lindstrom and H. Nordstrom |
hep-th/9211025 | Lorentz-Covariant Green-Schwarz Superstring Amplitudes | In a recent paper, the BRST formalism for the gauge-fixed N=2 twistor-string
was used to calculate Green-Schwarz supersring scattering amplitudes with an
arbitrary number of loops and external massless states. Although the
gauge-fixing procedure preserved the worldsheet N=2 superconformal invariance
of the twistor-stri... | 1992-11-04 | 2011-07-19 | [
"hep-th"
] | Nathan Berkovits |
hep-th/9211022 | Quantum Group Symmetric Bargmann Fock Construction | Usually in quantum mechanics the Heisenberg algebra is generated by operators
of position and momentum. The algebra is then represented on an Hilbert space
of square integrable functions. Alternatively one generates the Heisenberg
algebra by the raising and lowering operators. It is then natural to represent
it on the ... | 1992-11-04 | 2007-05-23 | [
"hep-th"
] | Achim Kempf |
hep-th/9211012 | Some Constant Solutions to Zamolodchikov's Tetrahedron Equations | In this letter we present constant solutions to the tetrahedron equations
proposed by Zamolodchikov. In general, from a given solution of the Yang-Baxter
equation there are two ways to construct solutions to the tetrahedron equation.
There are also other kinds of solutions. We present some two-dimensional
solutions tha... | 1992-11-03 | 2009-10-22 | [
"hep-th"
] | J. Hietarinta |
hep-th/9211011 | Semiclassical Extremal Blackholes | Extremal black holes are studied in a two dimensional model motivated by a
dimensional reduction from four dimensions. Their quantum corrected geometry is
calculated semiclassically and a mild singularity is shown to appear at the
horizon.
Extensions of the geometry past the horizon are not unique but there are
conti... | 1992-11-03 | 2010-11-01 | [
"hep-th"
] | Sandip P. Trivedi |
hep-th/9211013 | Black Hole Uncertainties | In this work the quantum theory of two dimensional dilaton black holes is
studied using the Wheeler De Witt equation. The solutions correspond to wave
functions of the black hole. It is found that for an observer inside the
horizon, there are uncertainty relations for the black hole mass and a
parameter in the metric d... | 1992-11-03 | 2009-10-22 | [
"hep-th"
] | Ulf H. Danielsson |
hep-th/9211014 | Self-duality and the Supersymmetric KdV Hierarchy | We show how the supersymmetric KdV equation can be obtained from the
self-duality condition on Yang-Mills fields in four dimension associated with
the graded Lie algebra OSp(2/1). We also obtain the hierarchy of Susy KdV
equations from such a condition. We formulate the Susy KdV hierarchy as a
vanishing curvature condi... | 1992-11-03 | 2015-06-26 | [
"hep-th"
] | A. Das and C. A. P. Galvao |
hep-th/9211010 | RG flows and resonance scattering amplitudes | We review recent progresses in the study of factorized resonance scattering
S-matrices. The resonance amplitudes are introduced through a suitable
analytical continuation of the ADE Toda S-matrices. By using the thermodynamic
Bethe ansatz approach we are able to compute the ground state energy, which
describes a rich p... | 1992-11-02 | 2007-05-23 | [
"hep-th"
] | M.J. Martins |
hep-th/9211004 | $\theta$ Effects in Chern-Simons ${\rm QED}_{2+1}$ with a Four-Fermi
Interaction | We investigate the effects of the Chern-Simons coupling on the high energy
behavior in the $(2+1)$-dimensional Chern-Simons QED with a four-Fermi
interaction. Using the $1/N$ expansion we discuss the Chern-Simons effects on
the critical four-Fermi coupling at $O(1/N)$ and the $\beta$ function around
it. High-energy beh... | 1992-11-02 | 2009-10-22 | [
"hep-th"
] | Junegone Chay, Deog Ki Hong, Taejin Lee, S. H. Park |
hep-th/9211003 | Chern-Simons States at Genus One | We present a rigorous analysis of the Schr\"{o}dinger picture quantization
for the $SU(2)$ Chern-Simons theory on 3-manifold torus$\times$line, with
insertions of Wilson lines. The quantum states, defined as gauge covariant
holomorphic functionals of smooth $su(2)$-connections on the torus, are
expressed by degree $2k$... | 1992-11-02 | 2015-06-26 | [
"hep-th"
] | Fernando Falceto and Krzysztof Gawedzki |
hep-th/9211009 | A Quadratic Deformation of the Heisenberg-Weyl and Quantum Oscillator
Enveloping Algebras | A new 2-parameter quadratic deformation of the quantum oscillator algebra and
its 1-parameter deformed Heisenberg subalgebra are considered. An infinite
dimensional Fock module representation is presented which at roots of unity
contains null vectors and so is reducible to a finite dimensional
representation. The cycli... | 1992-11-02 | 2009-10-22 | [
"hep-th",
"cond-mat",
"funct-an",
"math.FA"
] | Jens UH Petersen |
hep-th/9211001 | Noncritical Dimensions for Critical String Theory: Life beyond the
Calabi-Yau Frontier | A recently introduced framework for the compactification of supersymmetric
string theory involving noncritical manifolds of complex dimension
$2k+D_{crit}$, $k\geq 1$, is reviewed. These higher dimensional manifolds are
spaces with quantized positive Ricci curvature and therefore do not, a priori,
describe consistent s... | 1992-11-02 | 2007-05-23 | [
"hep-th"
] | Rolf Schimmrigk |
hep-th/9211008 | Gravitational Phase Transitions in Infrared Quantum Gravity | The conformal anomaly induced sector of four-dimensional quantum gravity
(infrared quantum gravity) ---which has been introduced by Antoniadis and
Mottola--- is here studied on a curved fiducial background. The one-loop
effective potential for the effective conformal factor theory is calculated
with accuracy, including... | 1992-11-02 | 2009-09-17 | [
"hep-th"
] | E. Elizalde and S.D. Odintsov |
hep-th/9211002 | Unification of Gravity, Gauge and Higgs Fields by Confined Quantum
Fields-Mathematical Formulation- | Dynamics of quantized free fields ( of spin 0 and 1/2 ) contained in a
subspace $V_*$ of an N+4 dimensional flat space $V$ is studied. The space $V_*$
is considered as a neighborhood of a four dimensional submanifold $M$
arbitrarily embedded into $V$. We study the system as a simple model of unified
theory of gravity (... | 1992-11-02 | 2009-10-22 | [
"hep-th"
] | Toshiki Isse |
hep-th/9211006 | Line Bundles Over Families of (SUPER) Riemann Surfaces. II: The Graded
Case | A relative Picard theory in the context of graded manifolds is introduced. A
Berezinian calculus and a theory of connections over SUSY-curves are
systematically developed, and used to prove a Gauss-Bonnet theorem for line
bundles in that setting and to discuss the validity of a flatness theorem | 1992-11-02 | 2009-10-22 | [
"hep-th"
] | U. Bruzzo and J.A. Dominguez Perez |
hep-th/9211005 | Line Bundles Over Families of (SUPER) Riemann Surfaces. I: The
Non-Graded Case | A first step towards a systematic theory of relative line bundles over
SUSY-curves is presented. In this paper we deal with the case of relative line
bundles over families of ordinary Riemann surfaces. Generalizations of the
Gauss-Bonnet theorem and of the flatness theorem for line bundles are
discussed. | 1992-11-02 | 2009-10-22 | [
"hep-th"
] | U. Bruzzo and J.A. Dominguez Perez |
hep-th/9211007 | Eluding the no-hair conjecture: Black holes in spontaneously broken
gauge theories | We study regular and black hole solutions to the coupled classical
Einstein--Yang-Mills--Higgs system. It has long been thought that black hole
solutions in the spontaneously broken phase of such a theory could have no
nontrivial field structure outside of the horizon. We first show that the
standard black hole no-hair... | 1992-11-02 | 2009-10-22 | [
"hep-th"
] | Brian R. Greene, Samir D. Mathur and Christopher M. O'Neill |
hep-th/9210165 | All Or Nothing: On the Small Fluctuations of Two-Dimensional
String-Theoretic Black Holes | A comprehensive analysis of small fluctuations about two-dimensional
string-theoretic and string-inspired black holes is presented. It is shown with
specific examples that two-dimensional black holes behave in a radically
different way from all known black holes in four dimensions. For both the
$SL(2,R)/U(1)$ black hol... | 1992-10-31 | 2008-02-03 | [
"hep-th",
"gr-qc"
] | Gerald Gilbert and Eric Raiten |
hep-th/9210160 | Coset Models Obtained by Twisting WZW Models and Stringy Charged Black
Holes in Four Dimensions | We show that several WZW coset models can be obtained by applying O(d,d)
symmetry transformations (referred to as twisting) on WZW models. This leads to
a conjecture that WZW models gauged by U(1)^n subgroup can be obtained by
twisting (ungauged) WZW models. In addition, a class of solutions that describe
charged black... | 1992-10-31 | 2016-09-06 | [
"hep-th"
] | David Gershon |
hep-th/9210158 | Attractive Forces Between Electrons in QED$_{3}$ | Vacuum polarization effects are non-perturbatively incorporated into the
photon propagator to eliminate the severe infrared problems characteristic of
QED$_3$. The theory is thus rephrased in terms of a massive vector boson whose
mass is $e^2/(8\pi)$. Subsequently, it is shown that electron-electron bound
states are po... | 1992-10-30 | 2019-08-15 | [
"hep-th"
] | H. O. Girotti, M. Gomes, J. L. deLyra, R. S. Mendes, J. R. S.
Nascimento and A. J. da Silva |
hep-th/9210164 | Point-Like Interactions in String Theory Induced by 2-D Topological
Gravity | We consider a string theory with two types of strings with geometric
interaction. We show that the theory contains strings with constant Dirichlet
boundary condition and those strings are glued together by 2-d topological
gravity with macroscopic boundaries. A light-cone string field theory is given
and the theory has ... | 1992-10-30 | 2009-10-22 | [
"hep-th"
] | Zongan Qiu (University of Florida) |
hep-th/9210162 | On the KP Hierarchy, $\hat{W}_{\infty}$ Algebra, and Conformal
SL(2,R)/U(1) Model --- The Classical and Quantum Cases | We give a unified description of our recent results on the the
inter-relationship between the integrable infinite KP hierarchy, nonlinear
$\hat{W}_{\infty}$ current algebra and conformal noncompact $SL(2,R)/U(1)$
coset model both at the classical and quantum levels. In particular, we present
the construction of a quant... | 1992-10-30 | 2007-05-23 | [
"hep-th"
] | Feng Yu and Yong-Shi Wu |
hep-th/9210157 | q-deformed conformal and Poincar{\'e} algebras on quantum 4-spinors | We investigate quantum deformation of conformal algebras by constructing the
quantum space for $sl_q(4,C)$. The differential calculus on the quantum space
and the action of the quantum generators are studied. We derive deformed
$su(4)$ and $su(2,2)$ algebras from the deformed $sl(4)$ algebra using the
quantum 4-spinor ... | 1992-10-30 | 2009-10-22 | [
"hep-th"
] | Tatsuo Kobayashi and Tsuneo Uematsu |
hep-th/9210163 | Supersymmetric Soluble Systems Embedded in Supersymmetric Self--Dual
Yang--Mills Theory | We perform dimensional reductions of recently constructed self-dual $~N=2$~
{\it supersymmetric} Yang-Mills theory in $~2+2\-$dimensions into
two-dimensions. We show that the universal equations obtained in these
dimensional reductions can embed supersymmetric exactly soluble systems, such
as $~N=1$~ and $~N=2$~ supers... | 1992-10-30 | 2012-08-27 | [
"hep-th"
] | S.J. Gates, Jr. and H. Nishino |
hep-th/9210159 | Non critical super strings on world sheets of constant curvature | We consider correlation functions in Neveu--Schwarz string theory coupled to
two dimensional gravity. The action for the 2D gravity consists of the string
induced Liouville action and the Jackiw--Teitelboim action describing pure 2D
gravity. Then gravitational dressed dimensions of vertex operators are equal to
their b... | 1992-10-30 | 2009-10-22 | [
"hep-th"
] | Stefan Forste |
hep-th/9210161 | Electron--Electron Bound States in QED$_{3}$ | This paper is dedicated to the study of the existence and the properties of
electron-electron bound states in QED$_3$. A detailed analysis of the infrared
structure of the perturbative series of the theory is presented. We start by
analyzing the two-point Green's function, in the Bloch-Nordsieck approximation.
The theo... | 1992-10-30 | 2019-08-15 | [
"hep-th"
] | H. O. Girotti, M. Gomes, J. L. deLyra, R. S. Mendes, J. R. S.
Nascimento and A. J. da Silva |
hep-th/9210156 | Quantizing Effective Strings | This TASI lecture covers the material in hep-th/9205026. It reviewed the
theory of effective strings, with particular emphasis on the manner in which
Lorentz invariance is represented. The quantum properties of an example of an
effective string are derived from the underlying field theory. A comparison is
made with wha... | 1992-10-30 | 2007-05-23 | [
"hep-th"
] | J.D. Cohn and Vipul Periwal |
hep-th/9210152 | Quantum Braided Groups | A new type of algebras that represent a generalization of both quantum groups
and braided groups is defined. These algebras are given by a pair of solutions
of the Yang--Baxter equation that satisfy some additional conditions. Several
examples are presented. | 1992-10-29 | 2009-10-22 | [
"hep-th"
] | Ladislav Hlavaty |
hep-th/9210154 | New Look at QED$_4$: the Photon as a Goldstone Boson and the Topological
Interpretation of Electric Charge | We develop the dual picture for Quantum Electrodynamics in 3+1 dimensions. It
is shown that the photon is massless in the Coulomb phase due to spontaneous
breaking of the magnetic symmetry group. The generators of this group are the
magnetic fluxes through any infinite surface $\Phi_S$. The order parameter for
this sym... | 1992-10-29 | 2009-10-22 | [
"hep-th"
] | A. Kovner and B. Rosenstein |
hep-th/9210151 | Zero-Modes, Covariant Anomaly Counterparts and Reducible Connections in
Topological Yang-Mills Theory | We introduce the covariant forms for the non-Abelian anomaly counterparts in
topological Yang-Mills theory, which satisfies the topological descent equation
modulo terms that vanish at the space of BRST fixed points. We use the
covariant anomalies as a new set of observables, which can absorb both $\dw$
and $\db$ ghost... | 1992-10-29 | 2007-05-23 | [
"hep-th"
] | Jae-Suk Park |
hep-th/9210155 | Additional symmetries of KP, Grassmannian, and the string equation II | As in the first part of this paper (hep-th 9204092), solutions to a string
equation are regarded as fixed points of some additional symmetries of a
hierarchy of integrable equations. In this part matrix hierarchies are studied:
the multi-component KP and KdV hierarchies, and the modified KdV hierarchy as
their reductio... | 1992-10-29 | 2015-06-26 | [
"hep-th"
] | L. A. Dickey |
hep-th/9210153 | Harmonic potentials for symmetric quaternionic sigma-models | A reference has been corrected | 1992-10-29 | 2009-10-22 | [
"hep-th"
] | A. Galperin and O. Ogievetsky |
hep-th/9210143 | The $W$ algebra structure of $N=2$ $CP_{n}$ coset models | We discuss the $N=2$ super $W$ algebras from the hamiltonian reduction of
affine Lie superalgebras $A(n|n-1)^{(1)}$ and $A(n|n)^{(1)}$. From the quantum
hamiltonian reduction of $A(n|n-1)^{(1)}$ we get the free field realization of
$N=2$ $CP_{n}$ super coset models. In the case of the affine Lie superalgebras
$A(n|n)^{... | 1992-10-28 | 2007-05-23 | [
"hep-th"
] | Katsushi Ito |
hep-th/9210149 | Driving Operators Relevant: A Feature of Chern-Simons Interaction | By computing anomalous dimensions of gauge invariant composite operators
$(\bar\psi\psi)^n$ and $(\phi^*\phi)^n$ in Chern-Simons fermion and boson
models, we address that Chern-Simons interactions make these operators more
relevant or less irrelevant in the low energy region. We obtain a critical
Chern-Simons fermion c... | 1992-10-28 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | Wei Chen (U of British Columbia) and Miao Li (UC Santa Barbara) |
hep-th/9210150 | Bicovariant Quantum Algebras and Quantum Lie Algebras | A bicovariant calculus of differential operators on a quantum group is
constructed in a natural way, using invariant maps from \fun\ to \uqg\ , given
by elements of the pure braid group. These operators --- the `reflection
matrix' $Y \equiv L^+ SL^-$ being a special case --- generate algebras that
linearly close under ... | 1992-10-28 | 2009-10-22 | [
"hep-th"
] | Peter Schupp, Paul Watts, and Bruno Zumino |
hep-th/9210147 | Renormalization of Tamm-Dancoff Integral Equations | During the last few years, interest has arisen in using light-front
Tamm-Dancoff field theory to describe relativistic bound states for theories
such as QCD. Unfortunately, difficult renormalization problems stand in the
way. We introduce a general, non-perturbative approach to renormalization that
is well suited for t... | 1992-10-28 | 2009-10-22 | [
"hep-th",
"hep-ph"
] | Brett van de Sande and Stephen Pinsky |
hep-th/9210148 | The l-State Boson Algebra as a Non-Standard Quantum Double and its
Universal R-Matrix for Yang-Baxer Equation | In this paper we construct a new quantum double by endowing the l-state
bosonalgebra with a non-trivial Hopf algebra structure,which is not a
q-deformation of the Lie algebra or superalgebra.The universal R-matrix for the
Yang-Baxter equation associated with this new quantum group structure is
obtained explicitly.By bu... | 1992-10-28 | 2007-05-23 | [
"hep-th"
] | Wei Li, Chang-Pu Sun, Mo-Lin Ge |
hep-th/9210146 | Thermodynamics of the 3-State Potts Spin Chain | We demonstrate the relation of the infrared anomaly of conformal field theory
with entropy considerations of finite temperature thermodynamics for the
3-state Potts chain. We compute the free energy and compute the low temperature
specific heat for both the ferromagnetic and anti-ferromagnetic spin chains,
and find the... | 1992-10-28 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | Rinat Kedem |
hep-th/9210145 | Generalized Spin Systems and $\sigma$--Models | A generalization of the $SU(2)$--spin systems on a lattice and their
continuum limit to an arbitrary compact group $G$ is discussed. The continuum
limits are, in general, non--relativistic $\sigma$--model type field theories
targeted on a homogeneous space $G/H$, where $H$ contains the maximal torus of
$G$. In the ferr... | 1992-10-28 | 2010-11-01 | [
"hep-th",
"cond-mat"
] | S. Randjbar--Daemi, Abdus Salam, J. Strathdee |
hep-th/9210142 | Recent Efforts in the Computation of String Couplings: | We review recent advances towards the computation of string couplings.
Duality symmetry, mirror symmetry, Picard-Fuchs equations, etc. are some of the
tools. | 1992-10-28 | 2009-10-22 | [
"hep-th"
] | Albrecht Klemm and Stefan Theisen |
hep-th/9210138 | Comment on $q$-deformation in Second Quantization Procedure | When the $q$-deformed creation and annihilation operators are used in a
second quantization procedure, the algebra satisfied by basis vectors
(orthogonal complete set) should be also deformed such as a field operator
remains invariant under the coaction of the quantum group. In the 1+1
dimensional quantum field theorie... | 1992-10-27 | 2017-02-01 | [
"hep-th"
] | Kazuhiko Odaka |
hep-th/9210139 | On Anomaly-free Supergravity as an Effective String Theory | The equations of motion of anomaly-free supergravity are shown to fulfil (to
all orders in $\alpha'$) a differential condition corresponding to the one
relating the Weyl anomaly coefficients for a non-linear sigma model
representing a (heterotic) string propagating in a non-trivial background. This
supports the possibi... | 1992-10-27 | 2009-10-22 | [
"hep-th"
] | A.K.Tollsten |
hep-th/9210140 | Differential Renormalization of a Yukawa Model with $\gamma_5$ | We present a two-loop computation of the beta functions and the anomalous
dimensions of a $\gamma_5$-Yukawa model using differential renormalization. The
calculation is carried out in coordinate space without modifying the space-time
dimension and no ad-hoc prescription for $\gamma_5$ is needed.
It is shown that this... | 1992-10-27 | 2009-10-22 | [
"hep-th"
] | Cristina Manuel |
hep-th/9210141 | Braided Momentum Structure of the q-Poincare Group | The $q$-Poincar\'e group of \cite{SWW:inh} is shown to have the structure of
a semidirect product and coproduct $B\cocross \widetilde{SO_q(1,3)}$ where $B$
is a braided-quantum group structure on the $q$-Minkowski space of 4-momentum
with braided-coproduct $\und\Delta \vecp=\vecp\tens 1+1\tens \vecp$. Here the
necessar... | 1992-10-27 | 2009-10-22 | [
"hep-th"
] | S. Majid |
hep-th/9210137 | Actions for Integrable Systems and Deformed Conformal Theories | I report on work on a Lagrangian formulation for the simplest 1+1 dimensional
integrable hierarchies. This formulation makes the relationship between
conformal field theories and (quantized) 1+1 dimensional integrable hierarchies
very clear. | 1992-10-26 | 2007-05-23 | [
"hep-th"
] | Jeremy Schiff |
hep-th/9210136 | Two Dimensional Quantum Chromodynamics on a Cylinder | We study two dimensional Quantum Chromodynamics with massive quarks on a
cylinder in a light--cone formalism. We eliminate the non--dynamical degrees of
freedom and express the theory in terms of the quark and Wilson loop variables.
It is possible to perform this reduction without gauge fixing. The fermionic
Fock space... | 1992-10-26 | 2010-11-01 | [
"hep-th"
] | S.Guruswamy and S.G.Rajeev |
hep-th/9210133 | Phase Space Quantum Mechanics on the Anti-De Sitter Spacetime and its
Poincar\'e Contraction | In this work we propose an alternative description of the quantum mechanics
of a massive and spinning free particle in anti-de~Sitter spacetime, using a
phase space rather than a spacetime representation. The regularizing character
of the curvature appears clearly in connection with a notion of localization in
phase sp... | 1992-10-26 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | A.M. El Gradechi and S. De Bi\`evre |
hep-th/9210134 | $W_3$ string scattering | The group theoretic method is extended to include fields with a background
charge. This formalism is used to compute the tree level scattering for $W_3$
strings. The scattering amplitudes involve Ising model correlation functions. A
detailed study of the four tachyon amplitude shows that the $W_3$ string must
possess a... | 1992-10-26 | 2009-10-22 | [
"hep-th"
] | M. D. Freeman and P. West |
hep-th/9210135 | Anticommuting Variables, Fermionic Path Integrals and Supersymmetry | (Replacement because mailer changed `hat' for supercript into something
weird. The macro `\sp' has been used in place of the `hat' character in this
revised version.) Fermionic Brownian paths are defined as paths in a space
para\-metr\-ised by anticommuting variables. Stochastic calculus for these
paths, in conjunction... | 1992-10-26 | 2009-10-22 | [
"hep-th"
] | Alice Rogers |
hep-th/9210132 | The Search for Zoo-Perparticles | This paper reviews the covariant formalism of N=1, D=10 classical
superparticle models. It discusses the local invariances of a number of
superparticle actions and highlights the problem of finding a covariant
quantization scenario. Covariant quantization has proved problematic, but it
has motivated in seeking alternat... | 1992-10-25 | 2007-05-23 | [
"hep-th"
] | J.L. Vazquez-Bello |
hep-th/9210130 | The Algebra of the Energy-Momentum Tensor and the Noether Currents in
Classical Non-Linear Sigma Models | The recently derived current algebra of classical non-linear sigma models on
arbitrary Riemannian manifolds is extended to include the energy-momentum
tensor. It is found that in two dimensions the energy-momentum tensor
$\theta_{\mu\nu}$, the Noether current $j_\mu$ associated with the global
symmetry of the theory an... | 1992-10-23 | 2015-06-26 | [
"hep-th"
] | M.Forger, J.Laartz, U.Schaeper |
hep-th/9210131 | Novel Spin and Statistical Properties of Nonabelian Vortices | We study the statistics of vortices which appear in (2+1)--dimensional
spontaneously broken gauge theories, where a compact group G breaks to a finite
nonabelian subgroup H. Two simple models are presented. In the first, a quantum
state which is symmetric under the interchange of a pair of indistinguishable
vortices ca... | 1992-10-23 | 2009-10-22 | [
"hep-th"
] | Lee Brekke, Hans Dykstra, Adam F. Falk and Tom D. Imbo |
hep-th/9210126 | A Multi-Grid Method for the Resolution of Thermodynamic Bethe Ansatz
Equations | We present a multi-grid algorithm in order to solve numerically the
thermodynamic Bethe ansatz equations. We specifically adapt the program to
compute the data of the conformal field theory reached in the ultraviolet
limit. Submitted to Computer Physics Communications | 1992-10-23 | 2009-10-22 | [
"hep-th"
] | A. Borzi, A.Koubek |
hep-th/9210129 | Construction of Modular Branching Functions from Bethe's Equations in
the 3-State Potts Chain | We use the single particle excitation energies and the completeness rules of
the 3-state anti-ferromagnetic Potts chain, which have been obtained from
Bethe's equation, to compute the modular invariant partition function. This
provides a fermionic construction for the branching functions of the $D_4$
representation of ... | 1992-10-23 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | Rinat Kedem and Barry M. Mccoy |
hep-th/9210128 | Classical R-matrix structure for the Calogero model | A classical R-matrix structure is described for the Lax representation of the
integrable n-particle chains of Calogero-Olshanetski-Perelo\-mov. This R-matrix
is dynamical, non antisymmetric and non-invertible. It immediately triggers the
integrability of the Type I, II and III potentials, and the algebraic
structures a... | 1992-10-23 | 2009-10-22 | [
"hep-th"
] | J. Avan and M. Talon |
hep-th/9210127 | A Note on the Green - Schwarz Mechanism in Open - String Theories | An interesting feature of some open superstring models in $D < 10$ is the
simultaneous presence, in the spectrum, of gauge fields and of a number of
antisymmetric tensor fields. In these cases the Green-Schwarz mechanism can
(and does) take a generalized form, resulting from the combined action of all
the antisymmetric... | 1992-10-23 | 2014-11-18 | [
"hep-th"
] | Augusto Sagnotti |
hep-th/9210125 | Multi-particle structure in the Z_n-chiral Potts models | We calculate the lowest translationally invariant levels of the Z_3- and
Z_4-symmetrical chiral Potts quantum chains, using numerical diagonalization of
the hamiltonian for N <= 12 and N <= 10 sites, respectively, and extrapolating
N to infinity. In the high-temperature massive phase we find that the pattern
of the low... | 1992-10-22 | 2009-10-22 | [
"hep-th"
] | G. von Gehlen and A. Honecker |
hep-th/9210120 | Stringy Quantum Effects in 2-Dimensional Black-Hole | We discuss the classical 2-dim. black-hole in the framework of the
non-perturbative formulation (in terms of non-relativistic fermions) of c=1
string field theory. We identify an off-shell operator whose classical equation
of motion is that of tachyon in the classical graviton-dilaton black-hole
background. The black-h... | 1992-10-22 | 2009-10-22 | [
"hep-th"
] | Avinash Dhar, Gautam Mandal and Spenta R. Wadia |
hep-th/9210123 | Cauchy Horizons, Thermodynamics and Closed Time-like Curves in Planar
Supersymmetric Space-times | We study geodesically complete, singularity free space-times induced by
supersymmetric planar domain walls interpolating between Minkowski and anti-de
Sitter ($AdS_4$) vacua. A geodesically complete space-time without closed
time-like curves includes an infinite number of semi-infinite Minkowski
space-times, separated ... | 1992-10-22 | 2009-09-17 | [
"hep-th",
"gr-qc"
] | M. Cveti\v{c}, R. Davis, S. Griffies, and H. H. Soleng |
hep-th/9210121 | Marginal Deformations of WZNW and Coset Models from O(d,d)
Transformation | We show that O(2,2) transformation of SU(2) WZNW model gives rise to marginal
deformation of this model by the operator $\int d^2 z J(z)\bar J(\bar z)$ where
$J$, $\bar J$ are U(1) currents in the Cartan subalgebra. Generalization of
this result to other WZNW theories is discussed. We also consider O(3,3)
transformatio... | 1992-10-22 | 2016-09-06 | [
"hep-th"
] | S.F. Hassan and Ashoke Sen |
hep-th/9210124 | Polynomials for Torus Links from Chern-Simons Gauge Theories | Invariant polynomials for torus links are obtained in the framework of the
Chern-Simons topological gauge theory. The polynomials are computed as vacuum
expectation values on the three-sphere of Wilson line operators representing
the Verlinde algebra of the corresponding rational conformal field theory. In
the case of ... | 1992-10-22 | 2009-10-22 | [
"hep-th"
] | J. M. Isidro, J. M. F. Labastida and A. V. Ramallo |
hep-th/9210122 | Characters for Coset Conformal Field Theories | We solve the Kac-Moody branching equation to obtain explicit formulae for the
characters of coset conformal field theories and then apply these to specific
examples to determine the integer shift of the conformal weights of primary
fields. We also present an example of coset conformal field theory which cannot
be descr... | 1992-10-22 | 2011-07-19 | [
"hep-th"
] | David C. Dunbar and Keith G. Joshi |
hep-th/9210115 | Semiclassical approximation in Batalin-Vilkovisky formalism | The geometry of supermanifolds provided with $Q$-structure (i.e. with odd
vector field $Q$ satisfying $\{ Q,Q\} =0$), $P$-structure (odd symplectic
structure ) and $S$-structure (volume element) or with various combinations of
these structures is studied. The results are applied to the analysis of
Batalin-Vilkovisky ap... | 1992-10-21 | 2010-11-01 | [
"hep-th",
"math.DG"
] | Albert Schwarz |
hep-th/9210116 | Non-Perturbative Solutions of String Theory in Gravitational Backgrounds | We study bosonic string theory in a gravitational background. We show that
either left-movers or right-movers are the only background independent
non-perturbative solutions of the field equations for an arbitrary static
metric. They are stable and have a conserved topological charge being therefore
topological solitons... | 1992-10-21 | 2009-10-22 | [
"hep-th"
] | Octavio A. Mattos and Victor O. Rivelles |
hep-th/9210117 | On the KP Hierarchy, $\hat{W}_{\infty}$ Algebra, and Conformal
SL(2,R)/U(1) Model: I. The Classical Case | In this paper we study the inter-relationship between the integrable KP
hierarchy, nonlinear $\hat{W}_{\infty}$ algebra and conformal noncompact
$SL(2,R)/U(1)$ coset model at the classical level. We first derive explicitly
the Possion brackets of the second Hamiltonian structure of the KP hierarchy,
then use it to defi... | 1992-10-21 | 2009-10-22 | [
"hep-th"
] | Feng Yu and Yong-Shi Wu |
hep-th/9210118 | On the KP Hierarchy, $\hat{W}_{\infty}$ Algebra, and Conformal
SL(2,R)/U(1) Model: II. The Quantum Case | This paper is devoted to constructing a quantum version of the famous KP
hierarchy, by deforming its second Hamiltonian structure, namely the nonlinear
$\hat{W}_{\infty}$ algebra. This is achieved by quantizing the conformal
noncompact $SL(2,R)_{k}/U(1)$ coset model, in which $\hat{W}_{\infty}$ appears
as a hidden curr... | 1992-10-21 | 2009-10-22 | [
"hep-th"
] | Feng Yu and Yong-Shi Wu |
hep-th/9210114 | Natural Supergravity Inflation | We show that a single uncharged chiral superfield, canonically coupled to
\mbox{$N=1$} supergravity with vanishing superpotential, naturally drives
inflation in the early universe for a class of simple Kahler potentials.
Inflation occurs due to the one-loop generation of a Kahler anomaly
proportional to $\R^2$. The coe... | 1992-10-21 | 2011-07-19 | [
"hep-th"
] | Gabriel Lopes Cardoso and Burt A. Ovrut |
hep-th/9210113 | Regularization and Renormalization of Chern-Simons Theory | We analyze some features of the perturbative quantization of Chern-Simons
theory (CST) in the Landau gauge. In this gauge the theory is known to be
perturbatively finite. We consider the renormalization scheme in which the
renormalized parameter $k$ equals the bare or classical one and show that it
constitutes a natura... | 1992-10-21 | 2007-05-23 | [
"hep-th"
] | G. Giavarini, C. P. Martin and F. Ruiz Ruiz |
hep-th/9210119 | The Dark Side of String Theory: Black Holes and Black Strings | Solutions to low energy string theory describing black holes and black
strings are reviewed. Many of these solutions can be obtained by applying
simple solution generating transformations to the Schwarzschild metric. In a
few cases, the corresponding exact conformal field theory is known. Various
properties of these so... | 1992-10-21 | 2007-05-23 | [
"hep-th",
"gr-qc"
] | Gary T. Horowitz |
hep-th/9210106 | Solving Topological 2D Quantum Gravity Using Ward Identities | A topological procedure for computing correlation functions for any (1,q)
model is presented. Our procedure can be used to compute any correlation
function on the sphere as well as some correlation functions at higher genus.
We derive new and simpler recursion relations that extend previously known
results based on W c... | 1992-10-20 | 2009-10-22 | [
"hep-th"
] | David Montano and Gil Rivlis |
hep-th/9210108 | Complex structures and the Elie Cartan approach to the theory of spinors | Each isometric complex structure on a 2$\ell$-dimensional euclidean space $E$
corresponds to an identification of the Clifford algebra of $E$ with the
canonical anticommutation relation algebra for $\ell$ ( fermionic) degrees of
freedom. The simple spinors in the terminology of E.~Cartan or the pure spinors
in the one ... | 1992-10-20 | 2007-05-23 | [
"hep-th"
] | Michel Dubois-Violette |
hep-th/9210111 | Gauge Symmetries,Topology and Quantisation | The following two loosely connected sets of topics are reviewed in these
lecture notes: 1) Gauge invariance, its treatment in field theories and its
implications for internal symmetries and edge states such as those in the
quantum Hall effect. 2) Quantisation on multiply connected spaces and a
topological proof the spi... | 1992-10-20 | 2015-06-26 | [
"hep-th"
] | A.P. Balachandran |
hep-th/9210112 | Anyons on a Torus | We prove the equivalence between anyon quantum mechanics on a torus and
Chern-Simons gauge theory. It is also shown that the Hamiltonian and total
momenta commute among themselves only in the physical Hilbert space. | 1992-10-20 | 2009-10-22 | [
"hep-th"
] | Yutaka Hosotani and Choon-Lin Ho |
hep-th/9210110 | Quantum Einstein-Maxwell Fields: A Unified Viewpoint from the Loop
Representation | We propose a naive unification of Electromagnetism and General Relativity
based on enlarging the gauge group of Ashtekar's new variables. We construct
the connection and loop representations and analyze the space of states. In the
loop representation, the wavefunctions depend on two loops, each of them
carrying informa... | 1992-10-20 | 2009-12-30 | [
"hep-th",
"gr-qc"
] | R. Gambini, J. Pullin |
hep-th/9210109 | Lattice Integrable Systems of Haldane-Shastry Type | We present a new lattice integrable system in one dimension of the
Haldane-Shastry type. It consists of spins positioned at the static equilibrium
positions of particles in a corresponding classical Calogero system and
interacting through an exchange term with strength inversely proportional to
the square of their dist... | 1992-10-20 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | Alexios P. Polychronakos |
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