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/9305003 | The spectrum of the 2D Black Hole, or Does the 2D black hole have
tachyonic or W--hair? | We solve the equations of motion of the tachyon and the discrete states in
the background of Witten's semiclassical black hole and in the exact 2D
dilaton-graviton background of Dijkgraaf et al. We find the exact solutions for
weak fields, leading to conclusions in disagreement with previous studies of
tachyons in the ... | 1993-05-03 | 2009-09-29 | [
"hep-th",
"gr-qc"
] | Neil Marcus and Yaron Oz (U of Tel-Aviv) |
hep-th/9305004 | QED effective action at finite temperature and density | The QED effective action at finite temperature and density is calculated to
all orders in an external homogeneous and time-independent magnetic field in
the weak coupling limit. The free energy, obtained explicitly, exhibit the
expected de\ Haas -- van\ Alphen oscillations. An effective coupling at finite
temperature a... | 1993-05-03 | 2008-11-26 | [
"hep-th"
] | Per Elmfors, Bo-Sture Skagerstam and David Persson |
hep-th/9304165 | High-Order Adiabatic Approximation for Non-Hermitian Quantum System and
Complexization of Berry's Phase | In this paper the evolution of a quantum system drived by a non-Hermitian
Hamiltonian depending on slowly-changing parameters is studied by building an
universal high-order adiabatic approximation(HOAA) method with Berry's phase
,which is valid for either the Hermitian or the non-Hermitian cases. This
method can be reg... | 1993-05-02 | 2009-10-22 | [
"hep-th"
] | Chang-Pu Sun |
hep-th/9304161 | A note on quantum structure constants | The Cartan-Maurer equations for any $q$-group of the $A_{n-1}, B_n, C_n, D_n$
series are given in a convenient form, which allows their direct computation
and clarifies their connection with the $q=1$ case. These equations, defining
the field strengths, are essential in the construction of $q$-deformed gauge
theories. ... | 1993-05-01 | 2016-09-06 | [
"hep-th"
] | Leonardo Castellani and Marco A. R-Monteiro |
hep-th/9304164 | The basis of the Ponzano-Regge-Turaev-Viro-Ooguri model is the loop
representation basis | We show that the Hilbert space basis that defines the Ponzano-Regge-
Turaev-Viro-Ooguri combinatorial definition of 3-d Quantum Gravity is the same
as the one that defines the Loop Representation. We show how to compute lengths
in Witten's 3-d gravity and how to reconstruct the 2-d geometry from a state of
Witten's the... | 1993-05-01 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Carlo Rovelli |
hep-th/9304155 | Heterotic string solutions and coset conformal field theories | We discuss solutions of the heterotic string theory which are analogous to
bosonic and superstring backgrounds related to coset conformal field theories.
A class of exact `left-right symmetric' solutions is obtained by supplementing
the metric, antisymmetric tensor and dilaton of the superstring solutions by
the gauge ... | 1993-05-01 | 2009-09-25 | [
"hep-th"
] | A.Giveon, E.Rabinovici and A.A.Tseytlin |
hep-th/9304162 | Exact Solution to the One-Plaquette Model of Induced QCD at Large $N$ | The induced lattice gauge theory with various types of inducing fields in
fundamental representation of $SU(N_{c})$ is considered.
In a simple case of one-plaquette lattice the model is solved in the large
$N_{c}$ limit by means of loop equations.
Comparison with the solution of usual QCD shows the equivalence of i... | 1993-04-30 | 2007-05-23 | [
"hep-th"
] | K. Zarembo |
hep-th/9304163 | N=2 Supersymmetry in Two-Dimensional Dilaton Gravity | Actions for $D=2$, $N=2$ supergravity coupled to a scalar field are
calculated, and it is shown that the most general power-counting renormalizable
dilaton gravity action has an $N=2$ locally supersymmetric extension. The
presence of chiral terms in the action leads one to hope that
non-renormalization theorems similar... | 1993-04-30 | 2009-10-22 | [
"hep-th"
] | William M. Nelson and Youngchul Park |
hep-th/9304159 | ADM masses for black strings and p-branes | An ADM mass formula is derived for a wide class of black solutions with
certain spherical symmetry. By applying this formula, we calculate the ADM
masses for recently discovered black strings and $p$-branes in diverse
dimensions. By this, the Bogolmol'nyi equation can be shown to hold explicitly.
A useful observation i... | 1993-04-30 | 2010-11-01 | [
"hep-th"
] | J. X. Lu |
hep-th/9304158 | Correlation functions of the One-Dimensional Random Field Ising Model at
Zero Temperature | We consider the one-dimensional random field Ising model, where the spin-spin
coupling, $J$, is ferromagnetic and the external field is chosen to be $+h$
with probability $p$ and $-h$ with probability $1-p$. At zero temperature, we
calculate an exact expression for the correlation length of the quenched
average of the ... | 1993-04-30 | 2009-10-22 | [
"hep-th",
"cond-mat",
"hep-lat"
] | Edward Farhi and Sam Gutmann |
hep-th/9304160 | Italian workshop on quantum groups | The first ``Convegno Informale su Quantum Groups'' was held in Florence from
February 3 to 6, 1993. This Convegno was conceived as an informal meeting to
bring together all the italian people working in the field of quantum groups
and related topics. We are very happy indeed that about 30 theoretical
physicists decided... | 1993-04-30 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Enrico Celeghini and M. Tarlini |
hep-th/9304156 | Aspects of Non-Abelian Toda Theories | We present a definition of the non-abelian generalisations of affine Toda
theory related from the outset to vertex operator constructions of the
corresponding Kac-Moody algebra $\gh$. Reuslts concerning conjugacy classes of
the Weyl group of the finite Lie algebra $\fing$ to embeddings of $A_1$ in
$\fing$ are used both... | 1993-04-30 | 2008-02-03 | [
"hep-th"
] | Jonathan Underwood |
hep-th/9304157 | Grading of Spinor Bundles and Gravitating Matter in Non-Commutative
Geometry | The gravitating matter is studied within the framework of the non-commutative
geometry. The non-commutative Einstein-Hilbert action on the product of a four
dimensional manifold with a discrete space gives the models of matter fields
coupled to the standard Einstein gravity.The matter multiplet is encoded in the
Dirac ... | 1993-04-30 | 2009-10-22 | [
"hep-th"
] | C. Klimcik, A. Pompos and V. Soucek |
hep-th/9304154 | Duality Symmetric Actions | It is frequently useful to construct dual descriptions of theories containing
antisymmetric tensor fields by introducing a new potential whose curl gives the
dual field strength, thereby interchanging field equations with Bianchi
identities. We describe a general procedure for constructing actions containing
both poten... | 1993-04-29 | 2009-09-15 | [
"hep-th"
] | John H. Schwarz and Ashoke Sen |
hep-th/9304152 | On ${\bf W_{\infty}}$ Algebras, Gauge Equivalence of KP Hierarchies,
Two-Boson Realizations and their KdV Reductions | The gauge equivalence between basic KP hierarchies is discussed. The first
two Hamiltonian structures for KP hierarchies leading to the linear and
non-linear $\Winf$ algebras are derived. The realization of the corresponding
generators in terms of two boson currents is presented and it is shown to be
related to many in... | 1993-04-29 | 2008-02-03 | [
"hep-th"
] | H. Aratyn, L.A. Ferreira, J.F. Gomes, A.H. Zimerman |
hep-th/9304150 | Virasoro Characters from Bethe Equations for the Critical Ferromagnetic
Three-State Potts Model | We obtain new fermionic sum representations for the Virasoro characters of
the confromal field theory describing the ferromagnetic three-state Potts spin
chain. These arise from the fermionic quasi-particle excitations derived from
the Bethe equations for the eigenvalues of the hamiltonian. In the conformal
scaling lim... | 1993-04-29 | 2009-10-22 | [
"hep-th"
] | S. Dasmahapatra, R. Kedem, B.M. McCoy and E. Melzer |
hep-th/9304136 | Cancellation of the Chiral Anomaly in a Model with Spontaneous Symmetry
Breaking | A perturbatively renormalized Abelian Higgs-Kibble model with a chirally
coupled fermion is considered. The Slavnov identity is fulfilled to all orders
of perturbation theory, which is crucial for renormalizability in models with
vector bosons. BRS invariance, i.e. the validity of the identity, forces the
chiral anomal... | 1993-04-29 | 2009-10-22 | [
"hep-th",
"hep-ph"
] | Thomas Portmann |
hep-th/9304153 | Quantum Fluctuations and Irreversibility | We study how the effects of quantum corrections lead to notions of
irreversibility and clustering in quantum field theory. In particular, we
consider the virtual ``charge" distribution generated by quantum corrections
and adopt for it a statistical interpretation. Then, this virtual charge is
shown to ($a$) describe a ... | 1993-04-29 | 2007-05-23 | [
"hep-th",
"gr-qc",
"hep-ph"
] | J. Perez-Mercader |
hep-th/9304149 | A remark on the coupling-dependence in affine Toda field theories | The affine Toda field theories based on the non simply-laced Lie algebras are
discussed. By rewriting the S-matrix formulae found by Delius et al, a
universal form for the coupling-constant dependence of these models is
obtained, and related to various general properties of the classical couplings.
This is illustrated ... | 1993-04-28 | 2009-10-22 | [
"hep-th"
] | Patrick Dorey |
hep-th/9304144 | Casimir Invariants for Quantized Affine Lie Algebras | Casimir invariants for quantized affine Lie algebras are constructed and
their eigenvalues computed in any irreducible highest weight representation. | 1993-04-28 | 2009-10-22 | [
"hep-th"
] | M.D.Gould and Y.-Z.Zhang |
hep-th/9304147 | Measurement of the Schrodinger wave of a single particle | We show that it is possible to measure Schrodinger wave of a single quantum
system. This provides a strong argument for associating physical reality with
the quantum state of a single system, and challenges the usual assumption that
the quantum state has physical meaning only for an ensemble of identical
systems. | 1993-04-28 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Yakir Aharonov and Lev Vaidman |
hep-th/9304143 | Quantized Affine Lie Algebras and Diagonalization of Braid Generators | Let $U_q(\hat{\cal G})$ be a quantized affine Lie algebra. It is proven that
the universal R-matrix $R$ of $U_q(\hat{\cal G})$ satisfies the celebrated
conjugation relation $R^\dagger=TR$ with $T$ the usual twist map. As
applications, braid generators are shown to be diagonalizable on arbitrary
tensor product modules o... | 1993-04-28 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Mark D. Gould and Yao-Zhong Zhang |
hep-th/9304145 | A Bilocal Field Theory in Four Dimensions | A bilocal field theory having M\"{o}bius gauge invariance is proposed. In
four dimensions there exists a zero momentum state of the first quantized
model, which belongs to a non-trivial BRS cohomology class. A field theory
lagrangian having a gauge invariance only in four dimensions is constructed. | 1993-04-28 | 2009-12-30 | [
"hep-th"
] | Takayuki Hori |
hep-th/9304148 | Numerical Analysis of Black Hole Evaporation | Black hole formation/evaporation in two-dimensional dilaton gravity can be
described, in the limit where the number $N$ of matter fields becomes large, by
a set of second-order partial differential equations. In this paper we solve
these equations numerically. It is shown that, contrary to some previous
suggestions, bl... | 1993-04-28 | 2009-09-17 | [
"hep-th",
"gr-qc"
] | Tsvi Piran and Andrew Strominger |
hep-th/9304142 | The Projective Unitary Irreducible Representations of the Poincar\'e
Group in 1+2 Dimensions | We give a complete analysis of the projective unitary irreducible
representations of the Poincar\'e group in 1+2 dimensions applying Mackey
theorem and using an explicit formula for the universal covering group of the
Lorentz group in 1+2 dimensions. We provide explicit formulae for all
representations. | 1993-04-28 | 2015-06-26 | [
"hep-th"
] | Dan Radu Grigore |
hep-th/9304146 | A Few Projects in String Theory | In these lectures I discuss various unsolved problems of string theory and
their relations to quantum gravity, 3d Ising model, large N QCD, and quantum
cosmology. No solutions are presented but some new and perhaps useful
approaches are suggested. | 1993-04-28 | 2008-02-03 | [
"hep-th"
] | A.M. Polyakov |
hep-th/9304151 | Semiclassical analysis of two- and three-spin antiferromagnets and
anyons on a sphere | We do a semiclassical analysis for two or three spins which are coupled
antiferromagnetically to each other. The semiclassical wave functions transform
correctly under permutations of the spins if one takes into account the
Wess-Zumino term present in the path integral for spins. The Wess-Zumino term
here is a total de... | 1993-04-28 | 2010-11-01 | [
"hep-th",
"cond-mat"
] | Diptiman Sen |
hep-th/9304141 | Factorized Scattering in the Presence of Reflecting Boundaries | We formulate a general set of consistency requirements, which are expected to
be satisfied by the scattering matrices in the presence of reflecting
boundaries. In particular we derive an equivalent to the boostrap equation
involving the W-matrix, which encodes the reflection of a particle off a wall.
This set of equati... | 1993-04-27 | 2011-05-05 | [
"hep-th"
] | A. Fring and R. K\"oberle |
hep-th/9304138 | Hidden Symmetry of the Racah and Clebsch-Gordan Problems for the Quantum
Algebra sl_q(2) | The Askey-Wilson algebra $AW(3)$ with three generators is shown to serve as a
hidden symmetry algebra underlying the Racah and (new) generalized
Clebsch-Gordan problems for the quantum algebra $sl_q(2)$. On the base of this
hidden symmetry a simple method to calculate corresponding coefficients in
terms of the Askey-Wi... | 1993-04-27 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Ya. I. Granovskii and A. S. Zhedanov |
hep-th/9304131 | Higher spins dynamics in the closed string theory | The general $\sigma$-model-type string action including both massless and
massive higher spins background fields is suggested. Field equations for
background fields are followed from the requirement of quantum Weyl invariance.
It is shown that renormalization of the theory can be produced level by level.
The detailed c... | 1993-04-27 | 2010-11-01 | [
"hep-th"
] | I.L. Buchbinder, E.S. Fradkin, S.L. Lyakhovich and V.D. Pershin |
hep-th/9304137 | Deformed Wong Particles | By generalizing the Feynman proof of the Lorentz force law, recently reported
by Dyson, we derive equations of motion for particles possessing internal
degrees of freedom $I^a$ which do not, in general, generate a finite algebra.
We obtain consistency criteria for fields which interact with such particles.
It is argued... | 1993-04-27 | 2009-10-22 | [
"hep-th"
] | A. Stern and I. Yakushin |
hep-th/9304132 | Light-Cone Parametrizations for K\"Ahler Manifolds | It is shown that, for any K\"ahler manifold, there exist parametrizations
such that the metric takes a block-form identical to the light-cone metric
introduced by Polyakov for two-dimensional gravity. Besides its possible
relevence for various aspects of K\"ahlerian geometry, this fact allows us to
change gauge in W gr... | 1993-04-27 | 2009-10-22 | [
"hep-th"
] | Jean-Loup Gervais, Yutaka Matsuo |
hep-th/9304128 | Quantum Black Hole Evaporation | We investigate a recently proposed model for a full quantum description of
two-dimensional black hole evaporation, in which a reflecting boundary
condition is imposed in the strong coupling region. It is shown that in this
model each initial state is mapped to a well-defined asymptotic out-state,
provided one performs ... | 1993-04-27 | 2009-10-22 | [
"hep-th"
] | Kareljan Schoutens, Erik Verlinde and Herman Verlinde |
hep-th/9304135 | ALE manifolds and Conformal Field Theory | We address the problem of constructing the family of (4,4) theories
associated with the sigma-model on a parametrized family ${\cal M}_{\zeta}$ of
Asymptotically Locally Euclidean (ALE) manifolds. We rely on the ADE
classification of these manifolds and on their construction as HyperK\"ahler
quotients, due to Kronheime... | 1993-04-27 | 2011-07-19 | [
"hep-th"
] | D. Anselmi, M. Bill\'o, P. Fr\'e, L. Girardello, A. Zaffaroni |
hep-th/9304133 | Non-Hermitian Symmetric N=2 Coset Models, Poincare Polynomials, and
String Compactification | The field identification problem, including fixed point resolution, is solved
for the non-hermitian symmetric $N=2$ superconformal coset theories. Thereby
these models are finally identified as well-defined modular invariant CFTs. As
an application, the theories are used as subtheories in tensor products with
$c=9$, wh... | 1993-04-27 | 2010-11-01 | [
"hep-th"
] | J\"urgen Fuchs and Christoph Schweigert |
hep-th/9304134 | Gluing of Branched Surfaces by Sewing of Fermionic String Vertices | We glue together two branched spheres by sewing of two Ramond (dual)
two-fermion string vertices and present a rigorous analytic derivation of the
closed expression for the four-fermion string vertex. This method treats all
oscillator levels collectively and the obtained answer verifies that the closed
form of the four... | 1993-04-27 | 2010-11-01 | [
"hep-th"
] | Bengt E.W. Nilsson, Per Sundell |
hep-th/9304140 | Form Factors in Affine Toda Field Theories | I briefly review the properties of classical affine Toda field theories and
indicate how some of this features survive in the quantum theory on-shell. I
demonstrate how this knowledge can be extended off-shell, i.e. how to compute
correlation functions for completely integrable models via the form factor
approach. For ... | 1993-04-27 | 2007-05-23 | [
"hep-th"
] | A. Fring |
hep-th/9304139 | Supersymmetric quantum mechanics and the Korteweg-de Vries hierarchy | The connection between supersymmetric quantum mechanics and the Korteweg- de
Vries (KdV) equation is discussed, with particular emphasis on the KdV
conservation laws. It is shown that supersymmetric quantum mechanics aids in
the derivation of the conservation laws, and gives some insight into the Miura
transformation t... | 1993-04-27 | 2009-10-22 | [
"hep-th",
"hep-ph"
] | Aaron K. Grant and Jonathan L. Rosner |
hep-th/9304129 | The Strength of String Nonperturbative Effects and Strong-Weak Coupling
Duality | A strong-weak coupling duality symmetry of the string equations of motion has
been suggested in the literature. This symmetry implies that vacua occur in
pairs. Since the coupling constant is a dynamical variable in string theory,
tunneling solutions between strong and weak coupling vacua may exist. Such
solutions woul... | 1993-04-27 | 2011-06-10 | [
"hep-th"
] | J.D. Cohn and Vipul Periwal |
hep-th/9304130 | Dynkin Diagrams of ${CP}^1$ Orbifolds | We investigate $N=2$ supersymmetric sigma model orbifolds of the sphere in
the large radius limit. These correspond to $N=2$ superconformal field
theories. Using the equations of topological-anti-topological fusion for the
topological orbifold, we compute the generalized Dynkin diagrams of these
theories - i.e., the so... | 1993-04-27 | 2009-10-22 | [
"hep-th"
] | Eric Zaslow |
hep-th/9304119 | On a class of finite sigma-models and string vacua; a supersymmetric
extension | Following a suggestion made by Tseytlin, we investigate the case when one
replaces the transverse part of the bosonic action by an $n=2$ supersymmetric
sigma-model with a symmetric homogeneous K\"ahlerian target space. As
conjectured by Tseytlin, the metric is shown to be exactly known since the beta
function is known ... | 1993-04-26 | 2007-05-23 | [
"hep-th"
] | A. Petermann |
hep-th/9304127 | Wess-Zumino-Witten model off criticality | We study the renormalization group flow properties of the Wess-Zumino-Witten
model in the region of couplings between $g^2=0$ and $g^2=4\pi/k$, by
evaluating the two-loop Zamolodchikov's $c$-function. We also discuss the
region of negative couplings. | 1993-04-26 | 2009-10-22 | [
"hep-th"
] | D. C. Cabra |
hep-th/9304120 | The Free Quon Gas Suffers Gibbs' Paradox | We consider the Statistical Mechanics of systems of particles satisfying the
$q$-commutation relations recently proposed by Greenberg and others. We show
that although the commutation relations approach Bose (resp.\ Fermi) relations
for $q\to1$ (resp.\ $q\to-1$), the partition functions of free gases are
independent of... | 1993-04-26 | 2009-10-22 | [
"hep-th"
] | R.F. Werner |
hep-th/9304124 | On a Jordan-algebraic formulation of quantum mechanics: Hilbert space
construction | In this note I discuss some aspects of a formulation of quantum mechanics
based entirely on the Jordan algebra of observables. After reviewing some facts
of the formulation in the \CS -approach I present a Jordan-algebraic Hilbert
space construction (inspired by the usual GNS-construction), thereby obtaining
a real Hil... | 1993-04-26 | 2007-05-23 | [
"hep-th"
] | Wolfgang Bischoff |
hep-th/9304122 | Modules Over Affine Lie Superalgebras | Modules over affine Lie superalgebras ${\cal G}$ are studied, in particular,
for ${\cal G}=\hat{OSP(1,2)}$. It is shown that on studying Verma modules, much
of the results in Kac-Moody algebra can be generalized to the super case. Of
most importance are the generalized Kac-Kazhdan formula and the
Malikov-Feigin-Fuchs c... | 1993-04-26 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Jiang-Bei Fan and Ming Yu |
hep-th/9304121 | Topological Field Theories and the Period Integrals | We discuss topological Landau-Ginzburg theories coupled to the 2-dimensional
topological gravity. We point out that the basic recursion relations for
correlation functions of the 2-dimesional gravity have exactly the same form as
the Gauss-Manin differential equations for the period integrals of
superpotentials. Thus t... | 1993-04-26 | 2015-06-26 | [
"hep-th"
] | T. Eguchi, Y. Yamada and S.-K. Yang |
hep-th/9304126 | On the Aharonov-Anandan Experiment | An experiment that would measure non--commuting quantum mechanical
observables without collapsing the wave function has been recently proposed by
Y Aharonov and J Anandan. These authors argue that this "protected measurement"
may give indication on "the reality of the wave function". We argue that,
depending of the pre... | 1993-04-26 | 2007-05-23 | [
"hep-th"
] | Carlo Rovelli |
hep-th/9304125 | On the Completeness of the Set of Classical W-Algebras Obtained from DS
Reductions | We clarify the notion of the DS --- generalized Drinfeld-Sokolov ---
reduction approach to classical ${\cal W}$-algebras. We first strengthen an
earlier theorem which showed that an $sl(2)$ embedding ${\cal S}\subset {\cal
G}$ can be associated to every DS reduction. We then use the fact that a
$\W$-algebra must have a... | 1993-04-26 | 2009-10-22 | [
"hep-th"
] | L. Feher, L. O'Raifeartaigh, P. Ruelle and I. Tsutsui |
hep-th/9304123 | $G/G$ Gauged Supergroup Valued WZNW Field Theory | The $G/G$ gauged supergroup valued WZNW theory is considered. It is shown
that for $G=\OSP$, the $G/G$ theory tensoring a ($b$, $c$, $\beta$, $\gamma$)
system is equivalent to the non-critical fermionic theory. The relation between
integral or half integral moded affine superalgebra and its reduced theory, the
NS or R ... | 1993-04-26 | 2008-02-03 | [
"hep-th"
] | Jiang-Bei Fan and Ming Yu (CCAST and Institute of Theoretical Physics,
Academia Sinica) |
hep-th/9304118 | Crystal bases, dilogarithm identities and torsion in algebraic K-groups | We give a new interpretation and proof of the dilogarithm identities,
associated to the affine Kac-Moody algebra sl(2)^, using the path description
of the corresponding crystal basis. We also discuss connections with algebraic
K-theory. | 1993-04-25 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Edward Frenkel and Andras Szenes |
hep-th/9304115 | On Higher-spin Generalisations of String Theory | We construct BRST operators for certain higher-spin extensions of the
Virasoro algebra, in which there is a spin-$s$ gauge field on the world sheet,
as well as the spin-2 gauge field corrresponding to the two-dimensional metric.
We use these BRST operators to study the physical states of the associated
string theories,... | 1993-04-24 | 2009-10-07 | [
"hep-th"
] | H. Lu, C.N. Pope and X.J. Wang |
hep-th/9304114 | Fermion Current Algebras and Schwinger Terms in 3+1 Dimensions | We discuss the restricted linear group in infinite dimensions modeled by the
Schatten class of rank $2p=4$ which contains $(3+1)$-dimensional analog of the
loop groups and is closely related to Yang-Mills theory with fermions in
$(3+1)$-dimensions. We give an alternative to the construction of the ``highest
weight'' re... | 1993-04-24 | 2010-11-01 | [
"hep-th"
] | Edwin Langmann |
hep-th/9304117 | Fractal Structure of Quantum Gravity in Two Dimensions | Recent numerical results on the fractal structure of two-dimensional quantum
gravity coupled to $c=-2$ matter are reviewed. Analytic derivation of the
fractal dimensions based on the Liouville theory and diffusion equation is also
discussed. Excellent agreements between the numerical and theoretical results
are obtaine... | 1993-04-24 | 2007-05-23 | [
"hep-th",
"hep-lat"
] | Noboru Kawamoto |
hep-th/9304111 | Statistics of Q-Oscillators, Quons and Relation to Fractional Satistics | The statistics of $q$-oscillators, quons and to some extent, of anyons are
studied and the basic differences among these objects are pointed out. In
particular, the statistical distributions for different bosonic and fermionic
$q$-oscillators are found for their corresponding Fock space representations in
the case when... | 1993-04-23 | 2009-10-22 | [
"hep-th"
] | M. Chaichian, R. Gonzales Felipe and C. Montonen |
hep-th/9304113 | Phase Space Reduction and Vortex Statistics: An Anyon Quantization
Ambiguity | We examine the quantization of the motion of two charged vortices in a
Ginzburg--Landau theory for the fractional quantum Hall effect recently
proposed by the first two authors. The system has two second-class constraints
which can be implemented either in the reduced phase space or
Dirac-Gupta-Bleuler formalism. Using... | 1993-04-23 | 2013-11-13 | [
"hep-th"
] | Theodore J. Allen, Andrew J. Bordner, and Dennis B. Crossley |
hep-th/9304110 | Non-commutative quantum dynamics | We described a $q$-deformation of a quantum dynamics in one dimension. We
prove that there exists only one essential deforamtion of quantum dynamics. | 1993-04-23 | 2015-06-26 | [
"hep-th"
] | Jakub Rembielinski & Kordian A. Smolinski |
hep-th/9304108 | $q$-Deformed Classical Lie Algebras and their Anyonic Realization | All classical Lie algebras can be realized \`a la Schwinger in terms of
fermionic oscillators. We show that the same can be done for their $q$-deformed
counterparts by simply replacing the fermionic oscillators with anyonic ones
defined on a two dimensional lattice. The deformation parameter $q$ is a phase
related to t... | 1993-04-23 | 2011-07-21 | [
"hep-th"
] | Marialuisa Frau, Marco A. R-Monteiro and Stefano Sciuto |
hep-th/9304109 | Non-Perturbative 2-Dimensional String Theory | We review some aspects of the non-perturbative formulation of 2-dim. string
theory in terms of non-relativistic fermions. We derive the bosonization using
$W_\infty$ coherent states in the path-integral formulation. We discuss the
classical limit and indicate the precise nature of the truncation of the full
theory that... | 1993-04-23 | 2007-05-23 | [
"hep-th"
] | Spenta R. Wadia |
hep-th/9304112 | Free Fermionic Elliptic Reflection Matrices and Quantum Group Invariance | Elliptic diagonal solutions for the reflection matrices associated to the
elliptic $R$ matrix of the eight vertex free fermion model are presented. They
lead through the second derivative of the open chain transfer matrix to an XY
hamiltonian in a magnetic field which is invariant under a quantum deformed
Clifford--Hop... | 1993-04-23 | 2009-10-22 | [
"hep-th",
"cond-mat",
"nlin.SI",
"solv-int"
] | R.Cuerno and A. Gonz\'alez--Ruiz |
hep-th/9304107 | Self-Similar Potentials and the q-Oscillator Algebra at Roots of Unity | Properties of the simplest class of self-similar potentials are analyzed.
Wave functions of the corresponding Schr\"odinger equation provide bases of
representations of the $q$-deformed Heisenberg-Weyl algebra. When the parameter
$q$ is a root of unity the functional form of the potentials can be found
explicitly. The ... | 1993-04-22 | 2009-10-22 | [
"hep-th",
"funct-an",
"math.FA"
] | S.Skorik and V.Spiridonov |
hep-th/9304103 | Three-Loop Calculation of the Anyonic Full Cluster Expansion | We calculate the perturbative correction to every cluster coefficient of a
gas of anyons through second order in the anyon coupling constant, as described
by Chern-Simons field theory. | 1993-04-22 | 2009-10-22 | [
"hep-th"
] | R. Emparan and M. A. Valle Basagoiti |
hep-th/9304104 | Anomaly Cancellation in Six Dimensions | I show that anomaly cancellation conditions are sufficient to determine the
two most important topological numbers relevant for Calabi-Yau compactification
to six dimensions. This reflects the fact that K3 is the only non-trivial CY
manifold in two complex dimensions. I explicitly construct the Green-Schwarz
counterter... | 1993-04-22 | 2009-10-22 | [
"hep-th",
"hep-ph"
] | Jens Erler |
hep-th/9304106 | The Low Level Modular Invariant Partition Functions of Rank-Two Algebras | Using the self-dual lattice method, we make a systematic search for modular
invariant partition functions of the affine algebras $g\*{(1)}$ of $g=A_2$,
$A_1+A_1$, $G_2$, and $C_2$. Unlike previous computer searches, this method is
necessarily complete. We succeed in finding all physical invariants for $A_2$
at levels $... | 1993-04-22 | 2015-06-26 | [
"hep-th"
] | Terry Gannon and Q. Ho-Kim |
hep-th/9304100 | Factorization in 2D String Theory | We show the factorization of correlation functions of tachyon operators in 2D
string theory using the discretized approach of Moore. Our demonstration of the
factorization is more general than that of the paper of Sakai and Tanii. We
obtain the rules for the factorization of tachyon amplitudes. Our results can
be under... | 1993-04-22 | 2009-10-22 | [
"hep-th"
] | Hiroshi Shirokura |
hep-th/9304102 | Four Dimensional Gravitational Backgrounds Based on N=4 c=4
Superconformal Systems | We propose two new realizations of the N=4, $\hat{c}=4$ superconformal system
based on the compact and non-compact versions of parafermionic algebras. The
target space interpretation of these systems is given in terms of
four-dimensional target spaces with non-trivial metric and topology different
from the previously k... | 1993-04-22 | 2008-11-26 | [
"hep-th"
] | C. Kounnas |
hep-th/9304101 | QED(1+1) by Dirac Quantization | (some errors corrected, slightly extended) | 1993-04-22 | 2008-02-03 | [
"hep-th"
] | Joakim Hallin |
hep-th/9304105 | Non-Local Effects in String Black Holes | We consider modifications to general relativity due to non-local string
effects by using perturbation theory about the 4-dimensional Schwarzschild
black hole metric. In keeping with our interpretation in previous works of
black holes as quantum p-branes we investigate non-local effects due to a
critical bosonic string ... | 1993-04-22 | 2007-05-23 | [
"hep-th"
] | B.Harms and Y.Leblanc |
hep-th/9304095 | Geometry the Renormalization Group and Gravity | We discuss the relationship between geometry, the renormalization group (RG)
and gravity. We begin by reviewing our recent work on crossover problems in
field theory. By crossover we mean the interpolation between different
representations of the conformal group by the action of relevant operators. At
the level of the ... | 1993-04-21 | 2023-02-06 | [
"hep-th"
] | Denjoe O'Connor and C. R. Stephens |
hep-th/9304092 | Effective Lagrangian for self-interacting scalar field theories in
curved spacetime | We consider a self-interacting scalar field theory in a slowly varying
gravitational background field. Using zeta-function regularization and
heat-kernel techniques, we derive the one-loop effective Lagrangian up to
second order in the variation of the background field and up to quadratic terms
in the curvature tensors... | 1993-04-21 | 2009-10-22 | [
"hep-th"
] | Klaus Kirsten, Guido Cognola and Luciano Vanzo |
hep-th/9304093 | Reply to `Comment on Gravity and the Poincare' Group' | In the first order form, the model considered by Strobl presents, besides
local Lorentz and diffeomorphism invariances, an additional local non-linear
symmetry. When the model is realized as a Poincar\'e gauge theory according to
the procedure outlined in Refs.[1,2], the generators of the non-linear symmetry
are respon... | 1993-04-21 | 2009-10-22 | [
"hep-th"
] | G. Grignani and G. Nardelli |
hep-th/9304096 | A Monopole Solution in open String Theory | We investigate a solution of the Weyl invariance conditions in open string
theory in 4 dimensions. In the closed string sector this solution is a
combination of the SU(2) Wess--Zumino--Witten model and a Liouville theory. The
investigation is carried out in the $\sigma$ model approach where we have
coupled all massless... | 1993-04-21 | 2010-11-01 | [
"hep-th"
] | K. Behrndt |
hep-th/9304094 | Canonical Analysis of Poincare' Gauge Theories for Two Dimansional
Gravity | Following the general method discussed in Refs.[1,2], Liouville gravity and
the 2 dimensional model of non-Einstenian gravity ${\cal L} \sim curv^2 +
torsion^2 + cosm. const.$ can be formulated as ISO(1,1) gauge theories. In the
first order formalism the models present, besides the Poincar\'e gauge
symmetry, additional... | 1993-04-21 | 2010-04-06 | [
"hep-th"
] | G. Grignani and G. Nardelli |
hep-th/9304089 | Generalizations of the thermal Bogoliubov transformation | The thermal Bogoliubov transformation in thermo field dynamics is generalized
in two respects. First, a generalization of the $\alpha$--degree of freedom to
tilde non--conserving representations is considered. Secondly, the usual
$2\times2$ Bogoliubov matrix is extended to a $4\times4$ matrix including
mixing of modes ... | 1993-04-21 | 2009-10-22 | [
"hep-th"
] | P. Elmfors and H. Umezawa |
hep-th/9304099 | Generalization of the Gale-Ryser theorem | We prove an inequality for the Kostka-Foulkes polynomials $K_{\lambda
,\mu}(q)$. As a corollary, we obtain a nontrivial lower bound for the Kostka
numbers and a new proof of the Berenstein-Zelevinsky
weight-multiplicity-one-criterium. | 1993-04-21 | 2008-02-03 | [
"hep-th",
"math.CO"
] | Anatol N. Kirillov |
hep-th/9304098 | Seventy Relatives of the Monster Module | Recent work on the classification of conformal field theories with one
primary field (the identity operator) is reviewed. The classification of such
theories is an essential step in the program of classification of all rational
conformal field theories, but appears impossible in general. The last managable
case, centra... | 1993-04-21 | 2008-02-03 | [
"hep-th",
"math.QA"
] | A. N. Schellekens |
hep-th/9304097 | Exact supersymmetry in the nonrelativistic hydrogen atom | We consider a Pauli particle in a Coulomb field. The supersymmetric
Hamiltonian is constructed, by explicitly giving the two supercharges $Q_{1}$
and $ Q_{2}$ in the full three-dimensional space and which together with the
Hamiltonian, are shown to constitute an $S(2)$ superalgebra. This offers an
alternative way of gr... | 1993-04-21 | 2009-10-22 | [
"hep-th"
] | R.D. Tangerman and J.A. Tjon |
hep-th/9304088 | Critical and Topological Properties of Cluster Boundaries in the $3d$
Ising Model | We analyze the behavior of the ensemble of surface boundaries of the critical
clusters at $T=T_c$ in the $3d$ Ising model. We find that $N_g(A)$, the number
of surfaces of given genus $g$ and fixed area $A$, behaves as $A^{-x(g)}$
$e^{-\mu A}$. We show that $\mu$ is a constant independent of $g$ and $x(g)$ is
approxima... | 1993-04-21 | 2009-10-22 | [
"hep-th",
"cond-mat",
"hep-lat"
] | V. Dotsenko, G. Harris, E. Marinari, E. Martinec, M. Picco and P.
Windey |
hep-th/9304087 | Chern--Simons Perturbation Theory II | In a previous paper [\AS], we used superspace techniques to prove that
perturbation theory (around a classical solution with no zero modes) for
Chern--Simons quantum field theory on a general $3$-manifold $M$ is finite. We
conjectured (and proved for the case of $2$-loops) that, after adding
counterterms of the expecte... | 1993-04-21 | 2008-02-03 | [
"hep-th",
"math.DG",
"math.QA"
] | Scott Axelrod and I. M. Singer |
hep-th/9304091 | The Renormalization Structure and Quantum Equivalence of 2D Dilaton
Gravities | The one-loop effective action corresponding the general model of dilaton
gravity given by the Lagrangian $L=-\sqrt{g} \left[ \frac{1}{2}Z(\Phi )
g^{\mu\nu} \partial_\mu \Phi \partial_\nu \Phi + C(\Phi ) R + V (\Phi
)\right]$, where $Z(\Phi )$, $ C(\Phi )$ and $V (\Phi )$ are arbitrary
functions of the dilaton field, is... | 1993-04-21 | 2009-09-17 | [
"hep-th"
] | E. Elizalde, S. Naftulin and S.D. Odintsov |
hep-th/9304083 | Low-Temperature Expansions and Correlation Functions of the Z_3-Chiral
Potts Model | Using perturbative methods we derive new results for the spectrum and
correlation functions of the general Z_3-chiral Potts quantum chain in the
massive low-temperature phase. Explicit calculations of the ground state energy
and the first excitations in the zero momentum sector give excellent
approximations and confirm... | 1993-04-20 | 2009-10-22 | [
"hep-th"
] | N.S. Han and A. Honecker |
hep-th/9304084 | Physical states in $N = 1$ supergravity | By solving the supersymmetry constraints for physical wave-functions, it is
shown that the only two allowed bosonic states in $ N = 1 $ supergravity are of
the form const.~exp~$(\pm I / \hbar) $, where $ I $ is an action functional of
the three-metric. States containing a finite number of fermions are forbidden.
In the... | 1993-04-20 | 2009-10-22 | [
"hep-th"
] | P.D. D'Eath |
hep-th/9304116 | Coset Construction of Minimal Models | Usual coset construction $\SU{k}\times\SU{l}/\SU{k+l}$ of Wess--Zumino
conformal field theory is presented as a coset construction of minimal models.
This new coset construction can be defined rigorously and allows one to
calculate easily correlation functions of a number of primary fields. | 1993-04-20 | 2011-07-19 | [
"hep-th"
] | M. Yu. Lashkevich |
hep-th/9304086 | Dynamics of cosmic strings and springs; a covariant formulation | A general family of charge-current carrying cosmic string models is
investigated. In the special case of circular configurations in arbitrary
axially symmetric gravitational and electromagnetic backgrounds the dynamics is
determined by simple point particle Hamiltonians. A certain "duality"
transformation relates our r... | 1993-04-20 | 2010-04-06 | [
"hep-th"
] | Arne L. Larsen |
hep-th/9304085 | Exact Solution of the general Non Intersecting String Model | We present a thorough analysis of the Non Intersecting String (NIS) model and
its exact solution. This is an integrable $q$-states vertex model describing
configurations of non-intersecting polygons on the lattice. The exact
eigenvalues of the transfer matrix are found by analytic Bethe Ansatz. The
Bethe Ansatz equatio... | 1993-04-20 | 2009-10-22 | [
"hep-th",
"nlin.SI",
"solv-int"
] | H.J. de Vega and G. Giavarini |
hep-th/9304090 | Renormalization Group Approach to Matrix Models in Two-Dimensional
Quantum Gravity | We explore the implications of recent work by Br\'ezin and Zinn-Justin,
applying the renormalization group techniques from critical phenomena to the
scaling limit of matrix models in two-dimensional quantum gravity. They
endeavor to get the lowest order fixed points of the theory giving insight upon
the critical points... | 1993-04-20 | 2009-10-22 | [
"hep-th"
] | Carles Ayala |
hep-th/9304080 | Construction of Affine and Conformal Affine Toda Solitons by Hirota's
Method | In this talk we report some results about the construction of soliton
solutions for the Affine and Conformal Affine Toda models using the Hirota's
method. We obtain new classes of solitons connected to the degeneracies of the
Cartan matrix eigenvalues as well as to some particular features of the
recursive scheme devel... | 1993-04-19 | 2007-05-23 | [
"hep-th"
] | H. Aratyn, C.P. Constantinidis, L.A. Ferreira, J.F. Gomes and A.H.
Zimerman |
hep-th/9304075 | Chern-Simons $p$-Branes and $p$-Dimensional Classical $W$-Algebras | It is shown that the generalized (with nonpolynomial Lagrangian) Chern-Simons
membranes and in general $p$-branes moving in $D$-dimensional target space
admit an infinite set of secondary constraints. With respect to the Poisson
bracket these constraints satisfy closed algebra containing $p$-dimensional
classical $W$ a... | 1993-04-19 | 2007-05-23 | [
"hep-th"
] | Raiko P. Zaikov |
hep-th/9304069 | Propagation of particles and strings in one-dimensional Universe | We review the basics of the dynamics of closed strings moving along the
discretized line \Z. The string excitations are described by a field
\phi_x(\tau) where x is the position of the string in the embedding space and
\tau is a semi-infinite ``euclidean time'' parameter related to the
longitudinal mode of the string. ... | 1993-04-19 | 2007-05-23 | [
"hep-th"
] | Ivan K. Kostov |
hep-th/9304081 | Chern-Simons States and Topologically Massive Gauge Theories | In an abelian topologically massive gauge theory, any eigenstate of the
Hamiltonian can be decomposed into a factor describing massive propagating
gauge bosons and a Chern-Simons wave function describing a set of
nonpropagating ``topological'' excitations. The energy depends only on the
propagating modes, and energy ei... | 1993-04-19 | 2010-04-28 | [
"hep-th"
] | M. Asorey, S. Carlip, and F. Falceto |
hep-th/9304079 | Anomaly matching for the QCD string | A criterion to be satisfied by a string theory of QCD is formulated in the
ultraviolet regime. It arises from the trace anomaly of the QCD stress tensor
computed using instantons. It is sensitive to asymptotic freedom. It appears to
be related to the trace anomaly of the QCD string. Our current understanding of
noncrit... | 1993-04-19 | 2009-12-30 | [
"hep-th"
] | B. S. Balakrishna |
hep-th/9304078 | Violations of the String Hypothesis in the Solutions of the Bethe Ansatz
Equations in the XXX-Heisenberg | We study the equations for the quasi-momenta which characterize the
wave-functions in the Bethe ansatz for the XXX-Heisenberg model. We show in a
simple analytical fashion, that the usual ``string hypothesis" incorrectly
predicts the number of real solutions and the number of complex solutions for
$N>21$ in the sector ... | 1993-04-19 | 2009-10-22 | [
"hep-th"
] | K. Isler and M. B. Paranjape |
hep-th/9304071 | Partition Functions for the Rigid String and Membrane at Any Temperature | Exact expressions for the partition functions of the rigid string and
membrane at any temperature are obtained in terms of hypergeometric functions.
By using zeta function regularization methods, the results are analytically
continued and written as asymptotic sums of Riemann-Hurwitz zeta functions,
which provide very ... | 1993-04-19 | 2009-09-17 | [
"hep-th"
] | E. Elizalde, S. Leseduarte and S.D. Odintsov |
hep-th/9304074 | On the Clebsch-Gordan coefficients for the two-parameter quantum algebra
$SU(2)_{p,q}$ | We show that the Clebsch - Gordan coefficients for the $SU(2)_{p,q}$ -
algebra depend on a single parameter Q = $\sqrt{pq}$ ,contrary to the explicit
calculation of Smirnov and Wehrhahn [J.Phys.A 25 (1992),5563]. | 1993-04-19 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Stjepan Meljanac and Marijan Milekovic |
hep-th/9304070 | Dirac and Weyl Equations on a Lattice as Quantum Cellular Automata | A discretized time evolution of the wave function for a Dirac particle on a
cubic lattice is represented by a very simple quantum cellular automaton. In
each evolution step the updated value of the wave function at a given site
depends only on the values at the nearest sites, the evolution is unitary and
preserves chir... | 1993-04-19 | 2009-10-22 | [
"hep-th",
"hep-lat"
] | Iwo Bialynicki-Birula |
hep-th/9304073 | Covariant - tensor method for quantum groups and applications I:
$SU(2)_{q}$ | A covariant - tensor method for $SU(2)_{q}$ is described. This tensor method
is used to calculate q - deformed Clebsch - Gordan coefficients. The connection
with covariant oscillators and irreducible tensor operators is established.
This approach can be extended to other quantum groups. | 1993-04-19 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Stjepan Meljanac and Marijan Milekovic |
hep-th/9304077 | R-matrices of U_qOSP(1,2) for highest weight representations of
U_qOSP(1,2) for general q and q is an odd root of unity | We obtain the formula for intertwining operator(R-matrix) of quantum
universal enveloping superalgebra U_qOSP(1,2) for U_qOSP(1,2)-Verma modules. By
its restriction we obtain the R-matrix for two semiperiodic(semicyclic), two
spin-j and spin-j and semiperiodic representations | 1993-04-19 | 2007-05-23 | [
"hep-th"
] | T.Hakobyan and A.G.Sedrakyan |
hep-th/9304082 | A Comment on the Propagator of the Radial Oscillator | Using a hybrid approach, based on the recursion relations for shape invariant
potentials developed by Das and Huang and a time-dependent tranformation of
variables, we derive the propagator for a radial oscillator. Although this is
not a new result, we explicitly show that time-dependent tranformations are
very benefic... | 1993-04-19 | 2013-11-13 | [
"hep-th"
] | C. J. Efthimiou |
hep-th/9304076 | A U(1) Current Algebra Model Coupled to 2D-Gravity | We consider a simple model of a scalar field with $U(1)$ current algebra
gauge symmetry coupled to $2D$-gravity in order to clarify the origin of
Stuckelberg symmetry in the $w_{\infty}$-gravity theory. An analogous symmetry
takes place in our model too. The possible central extension of the complete
symmetry algebra a... | 1993-04-19 | 2009-10-22 | [
"hep-th"
] | M. Stoilov and R. Zaikov |
hep-th/9304072 | Wave Propagation in Stringy Black Hole | We further study the nonperturbative formulation of two-dimensional black
holes. We find a nonlinear differential equation satisfied by the tachyon in
the black hole background. We show that singularities in the tachyon field
configurations are always associated with divergent semiclassical expansions
and are absent in... | 1993-04-17 | 2010-11-01 | [
"hep-th"
] | Avinash Dhar, Gautam Mandal and Spenta R. Wadia |
hep-th/9304065 | On a generalised bootstrap principle | The S-matrices for non-simply-laced affine Toda field theories are considered
in the context of a generalised bootstrap principle. The S-matrices, and in
particular their poles, depend on a parameter whose range lies between the
Coxeter numbers of dual pairs of the corresponding non-simply-laced algebras.
It is propose... | 1993-04-16 | 2009-10-22 | [
"hep-th"
] | E. Corrigan, P.E. Dorey, R. Sasaki |
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