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 |
|---|---|---|---|---|---|---|
hep-th/9303149 | Baby universes in 2d quantum gravity | We investigate the fractal structure of $2d$ quantum gravity, both for pure
gravity and for gravity coupled to multiple gaussian fields and for gravity
coupled to Ising spins. The roughness of the surfaces is described in terms of
baby universes and using numerical simulations we measure their distribution
which is rel... | 1993-03-26 | 2009-10-22 | [
"hep-th",
"hep-lat"
] | J. Ambjorn, S. Jain and G. Thorleifsson |
hep-th/9303146 | Low Temperature Expansion of Matrix Models | We show how to expand the free energy of a matrix model coupled to arbitrary
matter in powers of the matter coupling constant. Concentrating on $\nu$
uncoupled Ising models---which have central charge $\nu/2$---we work out the
expansion to sixth order for $\nu$ = 1, 2, and 3. Analyzing the series by the
ratio method, w... | 1993-03-26 | 2009-10-22 | [
"hep-th",
"hep-lat"
] | Mark Wexler |
hep-th/9303147 | Energy Momentum Tensor of the Evaporating Black Hole and Local
Bogoljubov Transformations | The method of Hawking to obtain black hole evaporation through Bogoljubov
transformation between asymptotic modes (in and out) is generalized. The
construction is local in that the in modes (of say positive frequency) are
decomposed by Bogoljubov transformation into positive and negative frequency
local inertial modes ... | 1993-03-26 | 2019-08-17 | [
"hep-th"
] | S.Massar, R. Parentani, R. Brout |
hep-th/9303142 | On a possible algebra morphism of U$_q$[OSP(1/2N)] onto the deformed
oscillator algebra W$_q$(N) | We formulate a conjecture, stating that the algebra of $n$ pairs of deformed
Bose creation and annihilation operators is a factor-algebra of
$U_q[osp(1/2n)]$, considered as a Hopf algebra, and prove it for $n=2$ case. To
this end we show that for any value of $q$ $U_q[osp(1/4)]$ can be viewed as a
superalgebra, freely ... | 1993-03-25 | 2011-07-19 | [
"hep-th",
"math.QA"
] | T. D. Palev and N. I. Stoilova |
hep-th/9303143 | Comment on the Background Independent Open String Theory | A direct derivation of the string field theory action in the Witten's
background independent open string theory for the case when ghosts and matter
are decoupled is given and consequences are discussed. | 1993-03-25 | 2010-11-01 | [
"hep-th"
] | Samson L. Shatashvili |
hep-th/9303138 | An Exact Solution of Induced Large-N Lattice Gauge Theory at Strong
Coupling | I show that the strong coupling solution of the Kazakov--Migdal model with a
general interaction potential $V(\Phi)$ in $D$ dimensions coincides at large
$N$ with that of the hermitean one-matrix model with the potential
$\tilde{V}(\Phi)$: $$ (2D-1)\tilde{V}'= (D-1)V'+ D\sqrt{(V')^2+4(1-2D)\Phi^2},
$$ whose solution is... | 1993-03-25 | 2008-02-03 | [
"hep-th",
"hep-lat"
] | Yu. Makeenko |
hep-th/9303140 | Tachyon Back Reaction on $d = 2$ String Black Hole | We describe a static solution for $d = 2$ critical string theory including
the tachyon $T$ but with its potential $V (T)$ set to zero. This solution thus
incorporates tachyon back reaction and, when $T = 0$, reduces to the black hole
solution. When $T \neq 0$ we find that (1) the Schwarzschild horizon of the
above blac... | 1993-03-25 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | S. Kalyana Rama |
hep-th/9303141 | q-Deformed Brownian Motion | Brownian motion may be embedded in the Fock space of bosonic free field in
one dimension.Extending this correspondence to a family of creation and
annihilation operators satisfying a q-deformed algebra, the notion of
q-deformation is carried from the algebra to the domain of stochastic
processes.The properties of q-def... | 1993-03-25 | 2009-10-22 | [
"hep-th",
"math.PR"
] | V. I. Man'ko, R. Vilela Mendes |
hep-th/9303135 | Wave Function of the Universe in Topological and in Einstein 2-form
Gravity | We clarify the relation between 2-form Einstein gravity and its topological
version. The physical space of the topological version is contained in that of
the Einstein gravity.
Moreover a new vector field is introduced into 2-form Einstein gravity to
restore the large symmetry of its topological version. The wave fun... | 1993-03-24 | 2007-05-23 | [
"hep-th"
] | Akika Nakamichi |
hep-th/9303131 | Schr\"{o}dinger Fields on the Plane with $[U(1)]^N$ Chern-Simons
Interactions and Generalized Self-dual Solitons | A general non-relativistic field theory on the plane with couplings to an
arbitrary number of abelian Chern-Simons gauge fields is considered. Elementary
excitations of the system are shown to exhibit fractional and mutual
statistics. We identify the self-dual systems for which certain classical and
quantal aspects of ... | 1993-03-24 | 2009-10-22 | [
"hep-th"
] | Chanju Kim, Choonkyu Lee, Pyungwon Ko, Bum-Hoon Lee, and Hyunsoo Min |
hep-th/9303137 | On the Quantizations of the Damped Systems | Based on a simple observation that a classical second order differential
equation may be decomposed into a set of two first order equations, we
introduce a Hamiltonian framework to quantize the damped systems. In
particular, we analyze the system of a linear damped harmonic oscillator and
demonstrate that the time evol... | 1993-03-24 | 2015-06-26 | [
"hep-th"
] | Chihong Chou |
hep-th/9303134 | Canonical Theory of 2d Gravity Coupled to Conformal Matter | A canonical quantization for two dimensional gravity models, including a
dilaton gravity model, is performed in a way suitable for the light-cone gauge.
We extend the theory developed by Abdalla {\it et.al.}\cite{AM} and obtain the
correlation functions by using the screening charges of the symmetry algebra.
It turns o... | 1993-03-24 | 2007-05-23 | [
"hep-th"
] | Taku Uchino |
hep-th/9303136 | On the Geometry of the Batalin-Vilkovisky Formalism | An invariant definition of the operator $\Delta $ of the Batalin-Vilkovisky
formalism is proposed. It is defined as the divergence of a Hamiltonian vector
field with an odd Poisson bracket (antibracket). Its main properties, which
follow from this definition, as well as an example of realization on
K\"ahlerian superman... | 1993-03-24 | 2015-06-26 | [
"hep-th"
] | O. M. Khudaverdian and A. P. Nersessian |
hep-th/9303132 | Study of Quommutators of Quantum Variables and Generalized Derivatives | A general deformation of the Heisenberg algebra is introduced with two
deformed operators instead of just one. This is generalised to many variables,
and permits the simultaneous existence of coherent states, and the
transposition of creation operators. | 1993-03-24 | 2009-10-22 | [
"hep-th",
"math.QA"
] | D. B. Fairlie and J. Nuyts |
hep-th/9303133 | Induced and Effective Gravity Theories in D=2 | As a preparation for the study of {\it arbitrary} extensions of $d=2$ gravity
we present a detailed investigation of $SO(N)$ supergravity. By gauging a
chiral, nilpotent subgroup of the $OSp(N|2)$ Wess-Zumino-Witten model we obtain
an all order expression for the effective action. Reality of the coupling
constant impos... | 1993-03-24 | 2009-10-22 | [
"hep-th"
] | Alexander Sevrin, Kris Thielemans and Walter Troost |
hep-th/9303139 | Integrability and Matrix Models | The theory of matrix models is reviewed from the point of view of its
relation to integrable hierarchies. Discrete 1-matrix, 2-matrix, ``conformal''
(multicomponent) and Kontsevich models are considered in some detail, together
with the Ward identites (``W-constraints''), determinantal formulas and
continuum limits, ta... | 1993-03-24 | 2010-12-17 | [
"hep-th"
] | A. Morozov |
hep-th/9303126 | Mellin Transform Techniques for Zeta-Function Resummations | Making use of inverse Mellin transform techniques for analytical
continuation, an elegant proof and an extension of the zeta function
regularization theorem is obtained. No series commutations are involved in the
procedure; nevertheless the result is naturally split into the same three
contributions of very different n... | 1993-03-23 | 2007-05-23 | [
"hep-th"
] | E. Elizalde, S. Leseduarte and S. Zerbini |
hep-th/9303125 | 2D Dilaton-Maxwell Gravity as a Fixed Point of the Renormalization Group | A general model of dialton-Maxwell gravity in two dimensions is investigated.
The corresponding one-loop effective action and the generalized
$\beta$-functions are obtained. A set of models that are fixed points of the
renormalization group equations are presented. | 1993-03-23 | 2009-09-17 | [
"hep-th"
] | E. Elizalde, S. Naftulin and S.D. Odintsov |
hep-th/9303130 | Loop Equation in Turbulence | The incompressible fluid dynamics is reformulated as dynamics of closed loops
$C$ in coordinate space. This formulation allows to derive explicit functional
equation for the generating functional $\Psi[C]$ in inertial range of spatial
scales, which allows the scaling solutions. The requirement of finite energy
dissipat... | 1993-03-23 | 2008-02-03 | [
"hep-th"
] | Alexander A. Migdal |
hep-th/9303129 | Ward identities and W-constraints in Generalized Kontsevich Model | The connection is obtained between Ward identities and W-constraints in
Generalized Kontsevich Model with the potential $X^4/4$. We show that Ward
identities include W-constraints (and do not include any other constraints) for
this potential and make some observations in favour of the same connection for
the model with... | 1993-03-23 | 2015-06-26 | [
"hep-th"
] | A.Mikhailov |
hep-th/9303127 | Simplicial Quantum Gravity and Random Lattices | Content:
1. Introduction
2. Regge calculus and dynamical triangulations
Simplicial manifolds and piecewise linear spaces - dual complex and volume
elements - curvature and Regge action - topological invariants - quantum Regge
calculus - dynamical triangulations
3. Two dimensional quantum gravity, dynamical tria... | 1993-03-23 | 2016-09-06 | [
"hep-th"
] | F. David |
hep-th/9303123 | Ultraviolet Stable Fixed Point and Scaling Relations in 2+$\epsilon$
Dimensional Quantum Gravity | We formulate a renormalizable quantum gravity in $2+\epsilon$ dimensions by
generalizing the nonlinear sigma model approach to string theory. We find that
the theory possesses the ultraviolet stable fixed point if the central charge
of the matter sector is in the range $0~<~c~<~25$. This may imply the existence
of cons... | 1993-03-23 | 2009-10-22 | [
"hep-th"
] | Hikaru Kawai, Yoshihisa Kitazawa and Masao Ninomiya |
hep-th/9303128 | Path Integration Via Summation of Perturbation Expansions and
Applications to Totally Reflecting Boundaries, and Potential Steps | The path integral for the propagator is expanded into a perturbation series,
which can be exactly summed in the case of $\delta$-function perturbations
giving a closed expression for the (energy-dependent) Green function. Making
the strength of the $\delta$-function perturbation infinite repulsive, produces
a totally r... | 1993-03-23 | 2009-10-22 | [
"hep-th"
] | Christian Grosche |
hep-th/9303124 | Relativistic Dynamics of Spin in Strong External Fields | The dynamics of relativistic spinning particles in strong external
electromagnetic or gravitational fields is discussed. Spin-orbit coupling is
shown to affect such relativistic phenomena as time-dilation and perihelion
shift. Possible applications include muon decay in a magnetic field and the
dynamics of neutron star... | 1993-03-23 | 2023-12-12 | [
"hep-th",
"hep-ph"
] | J.W. van Holten |
hep-th/9303120 | Exact Ground State Wave Functions for N Anyons in a Magnetic Field on a
Torus | The complete set of ground state wave functions for N anyons in an external
magnetic field on the torus is found. The cases when the filling factor is less
than or equal to one are considered. The single valued description of anyons is
employed through out by coupling bosons to a Chern-Simons field. At the end,
the Che... | 1993-03-22 | 2015-06-26 | [
"hep-th"
] | Ansar Fayyazuddin |
hep-th/9303122 | Finiteness and Unitarity of Lorentz-Covariant Green-Schwarz Superstring
Amplitudes | In two recent papers, a new method was developed for calculating
ten-dimensional superstring amplitudes with an arbitrary number of loops and
external massless particles, and for expressing them in manifestly
Lorentz-invariant form. By explicitly checking for divergences when the Riemann
surface degenerates, these ampl... | 1993-03-22 | 2009-10-22 | [
"hep-th"
] | Nathan Berkovits |
hep-th/9303121 | Quantum Dynamical Model for Wave Function Reduction in Classical and
Macroscopic Limits | In this papper, a quantum dynamical model describing the quantum measurement
process is presented as an extensive generalization of the Coleman-Hepp model.
In both the classical limit with very large quantum number and macroscopic
limit with very large particle number in measuring instrument, this model
generally reali... | 1993-03-22 | 2009-10-22 | [
"hep-th"
] | Chang-Pu Sun |
hep-th/9303118 | Fused Potts Models | Generalizing the mapping between the Potts model with nearest neighbor
interaction and six vertex model, we build a family of "fused Potts models"
related to the spin $k/2$ ${\rm U}_{q}{\rm su}(2)$ invariant vertex model and
quantum spin chain. These Potts model have still variables taking values
$1,\ldots,Q$ ($\sqrt{Q... | 1993-03-20 | 2011-07-19 | [
"hep-th"
] | W.M.Koo and H.Saleur |
hep-th/9303115 | Positive energy representations of the conformal quantum algebra | The positive-energy unitary irreducible representations of the $q$-deformed
conformal algebra ${\cal C}_q = {\cal U}_q(su(2,2))$ are obtained by
appropriate deformation of the classical ones. When the deformation parameter
$q$ is $N$-th root of unity, all these unitary representations become
finite-dimensional. For thi... | 1993-03-19 | 2009-10-22 | [
"hep-th"
] | L. Dabrowski, V.K. Dobrev, R. Floreanini and V. Husain |
hep-th/9303113 | Anomaly-Induced Magnetic Screening in 2+1 dimensional QED at Finite
Density | We show that in 2+1 dimensional Quantum Electrodynamics an external magnetic
field applied to a finite density of massless fermions is screened, due to a
$2+1$-dimensional realization of the underlying $2$-dimensional axial anomaly
of the space components of the electric current. This is shown to imply
screening of the... | 1993-03-19 | 2009-10-22 | [
"hep-th"
] | Stefano Forte (INFN Torino, Italy) |
hep-th/9303116 | Matrix Models and Nonperturbative String Propagation in Two-Dimensional
Black Hole Backgrounds | We identify a quantity in the $c=1$ matrix model which describes the
wavefunction for physical scattering of a tachyon from a black hole of the two
dimensional critical string theory. At the semiclassical level this quantity
corresponds to the usual picture of a wave coming in from infinity, part of
which enters the bl... | 1993-03-19 | 2014-11-18 | [
"hep-th"
] | Sumit R. Das |
hep-th/9303110 | Combinatorial Invariants from Four Dimensional Lattice Models | We study the subdivision properties of certain lattice gauge theories based
on the groups $Z_{2}$ and $Z_{3}$, in four dimensions. The Boltzmann weights
are shown to be invariant under all type $(k,l)$ subdivision moves, at certain
discrete values of the coupling parameter. The partition function then provides
a combin... | 1993-03-19 | 2009-10-22 | [
"hep-th",
"hep-lat",
"math.QA"
] | Danny Birmingham and Mark Rakowski |
hep-th/9303117 | On the Quantization of the Chern-Simons Fields Theory on Curved
Space-Times: the Coulomb Gauge Approach | We consider here the Chern-Simons field theory with gauge group SU(N) in the
presence of a gravitational background that describes a two-dimensional
expanding ``universe". Two special cases are treated here in detail: the
spatially flat {\it Robertson-Walker} space-time and the conformally static
space-times having a g... | 1993-03-19 | 2009-10-22 | [
"hep-th"
] | Franco Ferrari |
hep-th/9303111 | Dilogarithm Identities in Conformal Field Theory and Group Homology | Recently, Rogers' dilogarithm identities have attracted much attention in the
setting of conformal field theory as well as lattice model calculations. One of
the connecting threads is an identity of Richmond-Szekeres that appeared in the
computation of central charges in conformal field theory. We show that the
Richmon... | 1993-03-19 | 2009-10-22 | [
"hep-th",
"math.CA"
] | J. L. Dupont (Aarhus) and C. H. Sah (SUNY Stony Brook) |
hep-th/9303114 | Amplitude Zeroes in Collinear Processes or What Is Left from a
Factorizable 2d Model in Higher Dimensions | We show that for collinear processes, i.e. processes where the incoming and
outgoing momenta are aligned along the same line, the S-matrix of the tree
level 2+1 dimensional Thirring model factorizes: any S - matrix element is a
product of $2\rightarrow 2$ elements. In particular this means nullification of
all collinea... | 1993-03-19 | 2009-10-22 | [
"hep-th"
] | G. Gat and B. Rosenstein |
hep-th/9303112 | SUSY in the sky | Spinning particles in curved space-time can have fermionic symmetries
generated by the square root of bosonic constants of motion other than the
Hamiltonian. We present a general analysis of the conditions under which such
new supersymmetries appear, and discuss the Poisson-Dirac algebra of the
resulting set of charges... | 1993-03-19 | 2009-10-07 | [
"hep-th"
] | G.W. Gibbons, R.H. Rietdijk and J.W. van Holten |
hep-th/9303108 | Form Factors of the Elementary Field in the Bullough-Dodd Model | We derive the recursive equations for the form factors of the local hermitian
operators in the Bullough-Dodd model. At the self-dual point of the theory, the
form factors of the fundamental field of the Bullough-Dodd model are equal to
those of the fundamental field of the Sinh-Gordon model at a specific value of
the c... | 1993-03-19 | 2009-10-22 | [
"hep-th"
] | A. Fring, G. Mussardo and P. Simonetti |
hep-th/9303119 | On the relation between integrability and infinite-dimensional algebras | We review our work on the relation between integrability and
infinite-dimensional algebras. We first consider the question of what sets of
commuting charges can be constructed from the current of a \mbox{\sf U}(1)
Kac-Moody algebra. It emerges that there exists a set $S_n$ of such charges for
each positive integer $n>1... | 1993-03-19 | 2007-05-23 | [
"hep-th"
] | M. D. Freeman and P. West |
hep-th/9303107 | Some Remarks on the Two Parameters Quantum Algebra $SU_{p,k}$} | The two parameters quantum algebra $SU_{p,k}(2)$ can be obtained from a
single parameter algebra $SU_q(2)$. This fact gives some relations between
$SU_{p,k}(2)$ quantities and the corresponding ones of the $SU_q(2)$ algebra.
In this paper are mentioned the relations concerning: Casimir operators,
eigenvectors, matrix e... | 1993-03-19 | 2007-05-23 | [
"hep-th"
] | M.Micu (Dept. theor. phys., Inst. Atomic Phys., Bucharest MG-6,
Romania) |
hep-th/9303109 | Induced Chiral Supergravities in 2D | We analyze actions for 2D supergravities induced by chiral conformal
supermatter. The latter may be thought as described at the classical level by
superspace actions invariant under super-reparametrization, super-Weyl and
super-Lorentz transformations. Upon quantization various anomalies appear which
characterize the n... | 1993-03-19 | 2009-10-22 | [
"hep-th"
] | Fiorenzo Bastianelli and Ulf Lindstrom |
hep-th/9303105 | Exponent of n-Ising matter fields coupled to 2d gravity | n-Ising spins on a random surface represented by a matrix model is studied as
a model of the 2D gravity coupled to matter field with the central charge c >
1. The magnetic field is introduced to discuss the scaling exponent $\Delta$,
and the value of this magnetic field exponent is estimated by the series
expansion. | 1993-03-19 | 2009-10-22 | [
"hep-th"
] | Shinobu Hikami |
hep-th/9303106 | Axion-Dilaton Black Holes | In this talk some essential features of stringy black holes are described. We
consider charged four-dimensional axion-dilaton black holes. The Hawking
temperature and the entropy of all solutions are shown to be simple functions
of the squares of supercharges, defining the positivity bounds. Spherically
symmetric and m... | 1993-03-19 | 2009-10-22 | [
"hep-th"
] | Renata Kallosh |
hep-th/9303102 | Dyonic black holes in effective string theories | The spherical symmetric dyonic black hole solutions of the effective action
of heterotic string are studied perturbatively up to second order in the
inverse string tension. An expression for the temperature in term of the mass
and the electric and magnetic charge of the black hole is derived and it is
shown that its be... | 1993-03-18 | 2009-10-22 | [
"hep-th"
] | S. Mignemi |
hep-th/9303103 | Black Hole Evaporation in the Presence of a Short Distance Cutoff | A derivation of the Hawking effect is given which avoids reference to field
modes above some cutoff frequency $\omega_c\gg M^{-1}$ in the free-fall frame
of the black hole. To avoid reference to arbitrarily high frequencies, it is
necessary to impose a boundary condition on the quantum field in a timelike
region near t... | 1993-03-18 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Ted Jacobson |
hep-th/9303104 | Dimensionally Reduced Landau-Ginzburg Orbifolds with Discrete Torsion | It is observed that a large class of $(2,2)$ string vacua with $n>5$
superfields can be rewritten as Landau_Ginzburg orbifolds with discrete torsion
and $n=5$. The naive geometric interpretation (if one exists) would be that of
a complex 3-fold, not necessarily K\"ahler but still with vanishing first Chern
class. | 1993-03-18 | 2010-11-01 | [
"hep-th"
] | P. Berglund |
hep-th/9303096 | Unitarity and Complete Reducibility of Certain Modules over Quantized
Affine Lie Algebras | Let $U_q(\hat{\cal G})$ denote the quantized affine Lie algebra and
$U_q({\cal G}^{(1)})$ the quantized {\em nontwisted} affine Lie algebra. Let
${\cal O}_{\rm fin}$ be the category defined in section 3. We show that when
the deformation parameter $q$ is not a root of unit all integrable
representations of $U_q(\hat{\c... | 1993-03-17 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Yao-Zhong Zhang and Mark D. Gould |
hep-th/9303094 | Geometrical origin of integrability for Liouville and Toda theory | We generalize the Lax pair and B\"acklund transformations for Liouville and
Toda field theories as well as their supersymmetric generalizations, to the
case of arbitrary Riemann surfaces. We make use of the fact that Toda field
theory arises naturally and geometrically in a restriction of so called
$W$--geometry to ord... | 1993-03-17 | 2008-02-03 | [
"hep-th",
"nlin.SI",
"solv-int"
] | Kenichiro Aoki and Eric D'Hoker |
hep-th/9303100 | On pq-duality and explicit solutions in $c \le 1$ $2d$ gravity models | We study the integral representation for the exact solution to
nonperturbative $c le 1$ string theory. A generic solution is determined by two
functions $W(x)$ and $Q(x)$ which behaive at infinity like $x^p$ and $x^q$
respectively. The integral model for arbitrary $(p,q)$ models is derived which
explicitely demonstrate... | 1993-03-17 | 2015-06-26 | [
"hep-th"
] | S.Kharchev, A.Marshakov |
hep-th/9303101 | Integrable structures in matrix models and physics of 2d-gravity | A review of the appearence of integrable structures in the matrix model
description of $2d$-gravity is presented. Most of ideas are demonstrated at the
technically simple but ideologically important examples. Matrix models are
considered as a sort of "effective" description of continuum $2d$ field theory
formulation. T... | 1993-03-17 | 2015-06-26 | [
"hep-th"
] | A.Marshakov |
hep-th/9303097 | Intermittency in the q-State Potts Model | We define a block observable for the $q$-state Potts model which exhibits an
intermittent behaviour at the critical point. We express the intermittency
indices of the normalised moments in terms of the magnetic critical exponent
$\beta /\nu$ of the model. We confirm this relation by a numerical similation
of the $q=2$ ... | 1993-03-17 | 2009-09-25 | [
"hep-th"
] | Yves Leroyer |
hep-th/9303098 | Gauge covariance and the fermion-photon vertex in three- and four-
dimensional, massless quantum electrodynamics | In the quenched approximation, the gauge covariance properties of three
vertex Ans\"{a}tze in the Schwinger-Dyson equation for the fermion self energy
are analysed in three- and four- dimensional quantum electrodynamics. Based on
the Cornwall-Jackiw-Tomboulis effective action, it is inferred that the
spectral represent... | 1993-03-17 | 2010-03-04 | [
"hep-th"
] | Conrad J. Burden and Craig D. Roberts |
hep-th/9303095 | On Universal $R$-Matrix for Quantized Nontwisted Rank 3 Affine Lie
Algebras | Explicit formulas of the universal $R$-matrix are given for all quantized
nontwisted rank 3 affine Lie algebras $U_q(A_2^{(1)})\,,~U_q(C_2^{(1)})$ and
$U_q(G_2^{(1)})$. | 1993-03-17 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Yao-Zhong Zhang and Mark D. Gould |
hep-th/9303099 | A Large k Asymptotics of Witten's Invariant of Seifert Manifolds | We calculate a large $k$ asymptotic expansion of the exact surgery formula
for Witten's $SU(2)$ invariant of Seifert manifolds. The contributions of all
flat connections are identified. An agreement with the 1-loop formula is
checked. A contribution of the irreducible connections appears to contain only
a finite number... | 1993-03-17 | 2010-11-01 | [
"hep-th",
"math.QA"
] | Lev Rozansky |
hep-th/9303093 | Rational Theories of 2D Gravity from the Two-Matrix Model | The correspondence claimed by M. Douglas, between the multicritical regimes
of the two-matrix model and 2D gravity coupled to (p,q) rational matter field,
is worked out explicitly. We found the minimal (p,q) multicritical potentials
U(X) and V(Y) which are polynomials of degree p and q, correspondingly. The
loop averag... | 1993-03-16 | 2009-10-22 | [
"hep-th"
] | J.M. Daul, V. Kazakov and I. Kostov |
hep-th/9303091 | Quantum Deformed $su(m|n)$ Algebra and Superconformal Algebra on Quantum
Superspace | We study a deformed $su(m|n)$ algebra on a quantum superspace. Some
interesting aspects of the deformed algebra are shown. As an application of the
deformed algebra we construct a deformed superconformal algebra. {}From the
deformed $su(1|4)$ algebra, we derive deformed Lorentz, translation of
Minkowski space, $iso(2,2... | 1993-03-16 | 2009-10-22 | [
"hep-th"
] | Tatsuo Kobayashi |
hep-th/9303090 | Exact Beta Functions in the Vector Model and Renormalization Group
Approach | The validity of the renormalization group approach for large $N$ is clarified
by using the vector model as an example. An exact difference equation is
obtained which relates free energies for neighboring values of $N$. The
reparametrization freedom in field space provides infinitely many identities
which reduce the inf... | 1993-03-16 | 2009-10-22 | [
"hep-th"
] | Saburo Higuchi, Chigak Itoi and Norisuke Sakai |
hep-th/9303092 | Classical differential geometry and integrability of systems of
hydrodynamic type | Remarkable parallelism between the theory of integrable systems of
first-order quasilinear PDE and some old results in projective and affine
differential geometry of conjugate nets, Laplace equations, their
Bianchi-Baecklund transformations is exposed.
These results were recently applied by I.M.Krichever and B.A.Dubr... | 1993-03-16 | 2008-02-03 | [
"hep-th",
"math.DG"
] | S. P. Tsarev |
hep-th/9303084 | A Four-Reggeon Vertex for ${\bf Z}_3$ Twisted Fermionic Fields | Using operator sewing techniques we construct the Reggeon vertex involving
four external ${\bf Z}_3$-twisted complex fermionic fields. Generalizing a
procedure recently applied to the ordinary Ramond four-vertex, we deduce the
closed form of the ${\bf Z}_3$ vertex by demanding it to reproduce the results
obtained by se... | 1993-03-15 | 2009-10-22 | [
"hep-th"
] | Niclas Engberg and Bengt E.W. Nilsson |
hep-th/9303089 | Supersymmetric KP Systems Embedded in Supersymmetric Self-Dual
Yang-Mills Theory | We show that $~N=1$~ {\it supersymmetric} Kadomtsev-Petviashvili (SKP)
equations can be embedded into recently formulated $~N=1$~ self-dual {\it
supersymmetric} Yang-Mills theories after appropriate dimensional reduction and
truncation, which yield three-dimensional supersymmetric Chern-Simons theories.
Based on this r... | 1993-03-15 | 2009-10-22 | [
"hep-th"
] | H. Nishino |
hep-th/9303087 | Extended Non-Abelian Gauge Symmetries in Classical WZNW Model | The present paper is revised copy of hep-th/9303087 in which higher spin
extensions of the nonabelian gauge symmetries for the classical WZNW model are
considered. Both linear and nonlinear realizations of the extended affine
Kac-Moody algebra are obtained. A characteristic property of the WZNW model is
that it admits ... | 1993-03-15 | 2009-10-22 | [
"hep-th"
] | Raiko P. Zaikov |
hep-th/9303086 | Zero-curvature condition in two dimensions. Relativistic particle models
and finite \W-transformations | A relation between an $Sp(2M)$ gauge particle model and the zero-curvature
condition in a two-dimensional gauge theory is presented. For the $Sp(4)$ case
we construct finite \W-transformations. | 1993-03-15 | 2017-02-01 | [
"hep-th"
] | J. Gomis, J. Herrero, K. Kamimura and J. Roca |
hep-th/9303085 | Superconformal theories from Pseudoparticle Mechanics | We consider a one-dimensional Osp($N|2M$) pseudoparticle mechanical model
which may be written as a phase space gauge theory. We show how the
pseudoparticle model naturally encodes and explains the two-dimensional zero
curvature approach to finding extended conformal symmetries. We describe a
procedure of partial gauge... | 1993-03-15 | 2009-10-22 | [
"hep-th"
] | Karyn M. Apfeldorf and Joaquim Gomis |
hep-th/9303083 | On the Dirac Quantization of two Dimensional Gravity | We discuss the Dirac quantization of two dimensional gravity with bosonic
matter fields. After defining the extended Hamiltonian it is possible to fix
the gauge completely. The commutators can all be obtained in closed form;
nevertheless, the results are not particularly simple. | 1993-03-15 | 2007-05-23 | [
"hep-th"
] | M.C.B. Abdalla, F.P. Devecchi, E. Abdalla |
hep-th/9303080 | Non-Abelian Chern-Simons Quantum Mechanics | We propose a classical model for the non-Abelian Chern-Simons theory coupled
to $N$ point-like sources and quantize the system using the BRST technique. The
resulting quantum mechanics provides a unified framework for fractional spin,
braid statistics and Knizhnik-Zamolodchikov equation. | 1993-03-15 | 2009-10-22 | [
"hep-th"
] | Taejin Lee and Phillial Oh |
hep-th/9303082 | Comments on Witten Invariants of 3-Manifolds for SU(2) and $Z_m$ | The values of the Witten invariants, $I_W$, of the lens space $L(p, 1)$ for
SU(2) at level $k$ are obtained for arbitrary $p$. A duality relation for $I_W$
when $p$ and $k$ are interchanged, valid for asymptotic $k$, is observed. A
method for calculating $I_W$ for any group $G$ is described. It is found that
$I_W$ for ... | 1993-03-15 | 2007-05-23 | [
"hep-th"
] | S. Kalyana Rama and Siddhartha Sen |
hep-th/9303081 | Equivalent models for gauged WZW theory | We modify the $SL(2,{\bf R})/U(1)$ WZW theory, which was shown to describe
strings in a 2D black hole, to be invariant under chiral $U(1)$ gauge symmetry
by introducing a Steukelberg field. We impose several interesting gauge
conditions for the chiral $U(1)$ symmetry. In a paticular gauge the theory is
found to be redu... | 1993-03-15 | 2015-06-26 | [
"hep-th"
] | Haruhiko Terao and Kiyonori Yamada |
hep-th/9303088 | Chern-Simons States in Topologically Massive Gauge Theories | The set of degenerate ground states of an arbitrary nonabelian topologically
massive gauge theory is shown to be in one-to-one correspondence with the
Hilbert space of the associated pure Chern-Simons theory. (Paper is being
withdrawn: original conclusion is incorrect for the nonabelian case. For a
correct treatment, s... | 1993-03-15 | 2016-09-06 | [
"hep-th"
] | S. Carlip |
hep-th/9303078 | Parity violation and the mean field approximation for the anyon gas | We examine an approach to justifying the mean field approximation for the
anyon gas, using the scattering of anyons. Parity violation permits a nonzero
average scattering angle, from which one can extract a mean radius of curvature
for anyons. If this is larger than the interparticle separation, one expects
that the gr... | 1993-03-14 | 2015-06-26 | [
"hep-th",
"cond-mat"
] | Didier Caenepeel and Richard MacKenzie |
hep-th/9303079 | Matrix Models of Induced Large-N QCD | I review recent works on the problem of inducing large-N QCD by matrix
fields. In the first part of the talk I describe the matrix models which induce
large-N QCD and present the results of studies of their phase structure by the
standard lattice technology (in particular, by the mean field method). The
second part is ... | 1993-03-14 | 2007-05-23 | [
"hep-th",
"hep-lat"
] | Yu. Makeenko |
hep-th/9303075 | The free energy of the Potts model: from the continuous to the
first-order transition region | We present a large $q$ expansion of the 2d $q$-states Potts model free
energies up to order 9 in $1/\sqrt{q}$. Its analysis leads us to an ansatz
which, in the first-order region, incorporates properties inferred from the
known critical regime at $q=4$, and predicts, for $q>4$, the $n^{\rm th}$
energy cumulant scales a... | 1993-03-12 | 2010-12-17 | [
"hep-th",
"cond-mat",
"hep-lat"
] | T. Bhattacharya, R. Lacaze and A. Morel |
hep-th/9303076 | A Covariant Canonical Description of Liouville Field Theory | Original Version Corrupted by Mailer | 1993-03-12 | 2009-10-09 | [
"hep-th"
] | G. Papadopoulos and B. Spence |
hep-th/9303074 | Veneziano Amplitude for Winding Strings | String configurations with nonzero winding number describe soliton string
states. We compute the Veneziano amplitude for the scattering of arbitrary
winding states and show that in the large radius limit the strings always
scatter trivially and with no change in the individual winding numbers of the
strings. In this li... | 1993-03-12 | 2009-10-22 | [
"hep-th"
] | Ramzi R. Khuri |
hep-th/9303077 | Abelian Anomalies in Nonlocal Regularization | Nonlocal regularization of QED is shown to possess an axial anomaly of the
same form as other regularization schemes. The Noether current is explicitly
constructed and the symmetries are shown to be violated, whereas the identities
constructed when one properly considers the contribution from the path integral
measure ... | 1993-03-12 | 2015-06-26 | [
"hep-th"
] | M. A. Clayton, L. Demopoulos, J. W. Moffat |
hep-th/9303070 | Collective fermionic excitations in systems with a large chemical
potential | We study fermionic excitations in a cold ultrarelativistic plasma. We
construct explicitly the quantum states associated with the two branches which
develop in the excitation spectrum as the chemical potential is raised. The
collective nature of the long wavelength excitations is clearly exhibited.
Email contact: ollie... | 1993-03-11 | 2009-10-22 | [
"hep-th",
"hep-ph"
] | Jean-Paul Blaizot, Jean-Yves Ollitrault |
hep-th/9303073 | N=2 Superconformal Affine Liouville Theory | We present a new supersymmetric integrable model: the $N=2$ superconformal
affine Liouville theory. It interpolates between the $N=2$ super Liouville and
$N=2$ super sine-Gordon theories and possesses a Lax representation on the
complex affine Kac-Moody superalgebra ${\hat {sl(2| 2)^{(1)}}}$. We show that
the higher sp... | 1993-03-11 | 2009-10-22 | [
"hep-th"
] | E. Ivanov and F. Toppan |
hep-th/9303071 | The Geometric Structure of $W_N$-Gravity | The full non-linear structure of the action and transformation rules for
$\W_N$-gravity coupled to matter are obtained from a non-linear truncation of
those for $w_ \infty$ gravity. The geometry of the construction is discussed,
and it is shown that the defining equations become linear after a twistor-like
transform. | 1993-03-11 | 2009-10-22 | [
"hep-th"
] | C.M. Hull |
hep-th/9303072 | The universality of the shift of the Chern-Simons parameter for a
general class of BRS invariant regularizations | We consider a biparametric family of BRS invariant regularization methods of
SU(N) Chern-Simons theory (the parameters defining the family taking arbitrary
values in $\RR^2$) and show that the shift $k\to k + sign(k) N$ of the
Chern-Simons parameter $k$ occurs for arbitrary values of the family defining
parameters. Thi... | 1993-03-11 | 2011-07-19 | [
"hep-th"
] | G. Giavarini, C.P. Martin and F. Ruiz Ruiz |
hep-th/9303069 | Critical Strings from Noncritical Dimensions: A Framework for Mirrors of
Rigid Vacau | The role in string theory of manifolds of complex dimension $D_{crit} +
2(Q-1)$ and positive first Chern class is described. In order to be useful for
string theory, the first Chern class of these spaces has to satisfy a certain
relation. Because of this condition the cohomology groups of such manifolds
show a specific... | 1993-03-11 | 2009-10-22 | [
"hep-th"
] | Rolf Schimmrigk |
hep-th/9303068 | Supersymmetry and a Time-Dependent Landau System | A general technique is outlined for investigating supersymmetry properties of
a charged spin-$\half$ quantum particle in time-varying electromagnetic fields.
The case of a time-varying uniform magnetic induction is examined and shown to
provide a physical realization of a supersymmetric quantum-mechanical system.
Group... | 1993-03-10 | 2009-09-25 | [
"hep-th"
] | V. Alan Kosteleck\'y, V. I. Man'ko, Michael Martin Nieto, and D.
Rodney Truax |
hep-th/9303061 | Self-interacting scalar fields on spacetime with compact hyperbolic
spatial part | We calculate the one-loop effective potential of a self-interacting scalar
field on the spacetime of the form $\reals^2\times H^2/\Gamma$. The Selberg
trace formula associated with a co-compact discrete group $\Gamma$ in
$PSL(2,\reals )$ (hyperbolic and elliptic elements only) is used. The closed
form for the one-loop ... | 1993-03-10 | 2009-09-17 | [
"hep-th"
] | Andrei Bytsenko, Klaus Kirsten, Sergei Odintsov |
hep-th/9303060 | Neutrino Masses in Superstring Derived Standard--like Models | We propose a new scenario in a class of superstring derived standard--like
models that explains the suppression of the left--handed neutrino masses. Due
to nonrenormalizable terms and the breaking of the $U(1)_{Z^\prime}$ symmetry a
generalized see--saw mechanism takes place. Contrary to the traditional
see--saw mechan... | 1993-03-10 | 2011-02-09 | [
"hep-th"
] | Alon E. Faraggi and Edi Halyo |
hep-th/9303059 | Exact Primordial Black Strings in Four Dimensions | A solution of effective string theory in four dimensions is presented which
admits interpretation of a rotating black cosmic string. It is constructed by
tensoring the three dimensional black hole, extended with the Kalb-Ramond
axion, with a flat direction. The physical interpretation of the solution is
discussed, with... | 1993-03-10 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Nemanja Kaloper |
hep-th/9303065 | Quantum properties of the polytopic action in some simple geometries | The partition function corresponding to the "polytopic" action, a new action
for the gravitational interaction which we have proposed recently, is computed
in the simplest two-dimensional geometries of genus zero and one. The
functional integral over the Liouville field is approximated by an ordinary
integral over the ... | 1993-03-10 | 2019-08-17 | [
"hep-th"
] | E. Alvarez, J.Cespedes and E. Verdaguer |
hep-th/9303057 | Magnetic Monopoles, Bogomol'nyi Bound and SL(2,Z) Invariance in String
Theory | We show that in heterotic string theory compactified on a six dimensional
torus, the lower bound (Bogomol'nyi bound) on the dyon mass is invariant under
the SL(2,Z) transformation that interchanges strong and weak coupling limits of
the theory. Elementary string excitations are also shown to satisfy this lower
bound. F... | 1993-03-10 | 2009-09-15 | [
"hep-th"
] | Ashoke Sen |
hep-th/9303067 | Role of Short Distance Behavior in Off-Shell Open-String Field Theory | A recent proposal for a background independent open string field theory is
studied in detail for a class of backgrounds that correspond to general
quadratic boundary interactions on the world-sheet. A short-distance cut-off is
introduced to formulate the theory with a finite number of local and
potentially unrenormaliz... | 1993-03-10 | 2010-04-07 | [
"hep-th"
] | Keke Li and Edward Witten |
hep-th/9303064 | Liouville and Toda field theories on Riemann surfaces | We study the Liouville theory on a Riemann surface of genus g by means of
their associated Drinfeld--Sokolov linear systems. We discuss the cohomological
properties of the monodromies of these systems. We identify the space of
solutions of the equations of motion which are single--valued and local and
explicitly repres... | 1993-03-10 | 2009-10-22 | [
"hep-th"
] | E.Aldrovandi and L.Bonora |
hep-th/9303063 | Schwinger Effect in String Theory | I discuss the quantum instability of an electric field in a theory of open
strings. | 1993-03-10 | 2008-02-03 | [
"hep-th"
] | C.Bachas |
hep-th/9303058 | Quantum gauging from classical gauging of nonlinear algebras | We extend the theory of the gauging of classical quadratically nonlinear
algebras without a central charge but with a coset structure, to the quantum
level. Inserting the minimal anomalies into the classical transformation rules
of the currents introduces further quantum corrections to the classical
transformation rule... | 1993-03-10 | 2011-07-19 | [
"hep-th"
] | A. Sevrin and P. van Nieuwenhuizen |
hep-th/9303066 | Quantum Knizhnik-Zamolodchikov equations and holomorphic vector bundles | The paper introduces a new geometric interpretation of the quantum
Knizhnik-Zamolodchikov equations introduced in 1991 by I.Frenkel and
N.Reshetikhin. It turns out that these equations can be linked to certain
holomorphic vector bundles on the N-th Cartesian power of an elliptic curve.
These bundles are naturally const... | 1993-03-10 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Pavel Etingof |
hep-th/9303062 | The Energy-Momentum Tensor in Fulling-Rindler Vacuum | The energy density in Fulling-Rindler vacuum, which is known to be negative
"everywhere" is shown to be positive and singular on the horizons in such a
fashion as to guarantee the positivity of the total energy. The mechanism of
compensation is displayed in detail. | 1993-03-10 | 2010-04-06 | [
"hep-th"
] | Parentani Renaud |
hep-th/9303052 | Yang--Baxter symmetry in integrable models: new light from the Bethe
Ansatz solution | We show how any integrable 2D QFT enjoys the existence of infinitely many
non--abelian {\it conserved} charges satisfying a Yang--Baxter symmetry
algebra. These charges are generated by quantum monodromy operators and provide
a representation of $q-$deformed affine Lie algebras. We review and generalize
the work of de ... | 1993-03-09 | 2011-07-19 | [
"hep-th",
"nlin.SI",
"solv-int"
] | C. Destri and H. J. de Vega |
hep-th/9303055 | The Hausdorff dimension of random walks and the correlation length
critical exponent in Euclidean field theory | We study the random walk representation of the two-point function in
statistical mechanics models near the critical point. Using standard scaling
arguments we show that the critical exponent $\nu$ describing the vanishing of
the physical mass at the critical point is equal to $\nu_\theta/ d_w$. $d_w$ is
the Hausdorff d... | 1993-03-09 | 2009-10-22 | [
"hep-th"
] | Joe Kiskis, Rajamani Narayanan, Pavlos Vranas |
hep-th/9303048 | Entropy and Area | The ground state density matrix for a massless free field is traced over the
degrees of freedom residing inside an imaginary sphere; the resulting entropy
is shown to be proportional to the area (and not the volume) of the sphere.
Possible connections with the physics of black holes are discussed. | 1993-03-09 | 2009-10-22 | [
"hep-th",
"gr-qc",
"hep-lat"
] | Mark Srednicki |
hep-th/9303054 | Two-dimensional conformal sigma models and exact string solutions | We discuss two classes of exact (in $\a'$) string solutions described by
conformal sigma models. They can be viewed as two possibilities of constructing
a conformal model out of the non-conformal one based on the metric of a
$D$-dimensional homogeneous $G/H$ space. The first possibility is to introduce
two extra dimens... | 1993-03-09 | 2007-05-23 | [
"hep-th"
] | A.A. Tseytlin |
hep-th/9303053 | Analytic Multi-Regge Theory and the Pomeron in QCD : II. Gauge Theory
Analysis | The high-energy Regge behavior of gauge theories is studied via the formalism
of Analytic Multi-Regge Theory. Perturbative results for spontaneously-broken
theories are first organised into reggeon diagrams. Unbroken gauge theories are
studied via a reggeon diagram infra-red analysis of symmetry restoration.
Massless f... | 1993-03-09 | 2014-11-18 | [
"hep-th",
"hep-ph"
] | Alan R. White |
hep-th/9303050 | Conformal Turbulence with Boundary | Based upon the formalism of conformal field theory with a boundary, we give a
description of the boundary effect on fully developed two dimensional
turbulence. Exact one and two point velocity correlation functions and energy
power spectrum confined in the upper half plane are obtained using the image
method. This resu... | 1993-03-09 | 2010-02-05 | [
"hep-th"
] | B.K. Chung, Soonkeon Nam, Q-Han Park, and H.J. Shin |
hep-th/9303056 | Symmetry and Observables in Induced QCD | We review some of the basic features of the Kazakov-Migdal model of induced
QCD. We emphasize the role of $Z_N$ symmetry in determining the observable
properties of the model and also argue that it can be broken explicitly without
ruining the solvability of induced QCD in the infinite $N$ limit. We outline
the sort of ... | 1993-03-09 | 2007-05-23 | [
"hep-th",
"hep-lat"
] | Gordon W. Semenoff and Nathan Weiss |
hep-th/9303049 | Exact Solutions to the Wheeler-DeWitt Equation of Two Dimensional
Dilaton Gravity | The two dimensional dilaton gravity with the cosmological term and with an
even number of matter fields minimally coupled to the gravity is considered.
The exact solutions to the Wheeler-DeWitt equation are obtained in an explicit
functional form, which contain an arbitrary holomorphic function of the matter
fields. | 1993-03-09 | 2024-08-02 | [
"hep-th"
] | Takayuki Hori |
hep-th/9303051 | On the BRST Operator of $W$-Strings | We discuss the conditions under which the BRST operator of a $W$-string can
be written as the sum of two operators that are separately nilpotent and
anticommute with each other. We illustrate our results with the example of the
non-critical $W_3$-string. Furthermore, we apply our results to make a
conjecture about a re... | 1993-03-09 | 2009-10-22 | [
"hep-th"
] | E. Bergshoeff, H.J. Boonstra, M. de Roo, S. Panda and A. Sevrin |
hep-th/9303047 | Central extensions of current groups in two dimensions | In this paper we generalize some of these results for loop algebras and
groups as well as for the Virasoro algebra to the two-dimensional case. We
define and study a class of infinite dimensional complex Lie groups which are
central extensions of the group of smooth maps from a two dimensional
orientable surface withou... | 1993-03-09 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Pavel Etingof and Igor B. Frenkel |
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