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/9210107 | Matrix Models and Black Holes | We show that an integral transform of the fluctuations of the collective
field of the $d=1$ matrix model satisfy the same linearized equation as that of
the massless "tachyon" in the black hole background of the two dimensional
critical string. This suggests that the $d=1$ matrix model may provide a
non-perturbative de... | 1992-10-20 | 2009-10-22 | [
"hep-th"
] | Sumit R. Das |
hep-th/9210104 | Four-Parameter Point-Interaction in 1-D Quantum Systems | We construct a four-parameter point-interaction for a non-relativistic
particle moving on a line as the limit of a short range interaction with range
tending toward zero. For particular choices of the parameters, we can obtain a
delta-interaction or the so-called delta'-interaction. The Hamiltonian
corresponding to the... | 1992-10-19 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | Michel Carreau, (Boston University) |
hep-th/9210101 | Gravitational Collapse in 1+1 Dimensions and Quantum Gravity | We investigate the quantum theory of 1+1 dimensional dilaton gravity, which
is an interesting toy model of the black hole dynamics. The functional measures
of gravity part are explicitly evaluated and derive the Wheeler-DeWitt like
equations as physical state conditions. In ADM formalism the measures are very
ambiguous... | 1992-10-19 | 2007-05-23 | [
"hep-th"
] | K. Hamada |
hep-th/9210098 | Noncommutative Geometry and Gauge Theories on Discrete Groups | We build and investigate a pure gauge theory on arbitrary discrete groups. A
systematic approach to the construction of the differential calculus is
presented. We discuss the metric properties of the models and introduce the
action functionals for unitary gauge theories. A detailed analysis of two
simple models based o... | 1992-10-19 | 2015-06-26 | [
"hep-th"
] | Andrzej Sitarz |
hep-th/9210102 | On the Two-Point Correlation Function in Dynamical Scaling and
SCHR\"Odinger Invariance | The extension of dynamical scaling to local, space-time dependent rescaling
factors is investigated. For a dynamical exponent $z=2$, the corresponding
invariance group is the Schr\"odinger group. Schr\"odinger invariance is shown
to determine completely the two-point correlation function. The result is
checked in two e... | 1992-10-19 | 2015-06-26 | [
"hep-th",
"cond-mat",
"hep-lat"
] | Malte Henkel |
hep-th/9210105 | Infinite symmetry and Ward identities in two-dimensional string theory | We review some of the recent progress in the continuum formulation of
two-dimensional string theory, i.e. two-dimensional quantum gravity coupled to
$c=1$ matter. Special attention is devoted to the discrete states and to the
$w_\infty$ algebra they generate. To demonstrate the power of the infinite
symmetry, we use th... | 1992-10-19 | 2007-05-23 | [
"hep-th"
] | Igor R. Klebanov and Andrea Pasquinucci |
hep-th/9210099 | The Supersymmetric Effective Action of the Heterotic String in Ten
Dimensions | We construct the supersymmetric completion of quartic $R+R^4$-actions in the
ten-dimensional effective action of the heterotic string. Two invariants, of
which the bosonic parts are known from one-loop string amplitude calculations,
are obtained. One of these invariants can be generalized to an
$R+F^2+F^4$-invariant fo... | 1992-10-19 | 2009-10-22 | [
"hep-th"
] | M. de Roo, H. Suelmann and A. Wiedemann |
hep-th/9210100 | Quantum Group Symmetries in Conformal Field Theory | Quantum groups play the role of hidden symmetries of some two-dimensional
field theories. We discuss how they appear in this role in the
Wess-Zumino-Witten model of conformal field theory. | 1992-10-19 | 2007-05-23 | [
"hep-th"
] | Krzysztof Gaw\c{e}dzki |
hep-th/9210103 | Operator Algebra in Chern-Simons Theory on a Torus | We consider Chern-Simons gauge theory on a torus with both nonrelativistic
and relativistic matter. It is shown that the Hamiltonian and two total momenta
commute among themselves only in the physical Hilbert space. We also discuss
relations among degenerate physical states, degenerate vacua, and the existence
of multi... | 1992-10-19 | 2009-10-22 | [
"hep-th"
] | Choon-Lin Ho and Yutaka Hosotani |
hep-th/9210097 | Exactly Solvable Potentials and Quantum Algebras | Self-similar potentials and corresponding symmetry algebras are briefly
discussed.
Talk presented at the XIXth ICGTMP, Salamanca, 29 June - 4July 1992. | 1992-10-18 | 2011-02-15 | [
"hep-th"
] | V.Spiridonov |
hep-th/9210096 | Non-linear Field Theory of a Frustrated Heisenberg Spin Chain | We derive a continuum field theory for the Majumdar-Ghosh model in the
large-$S$ limit, where the field takes values in the manifold of the $SO(3)$
group. No topological term is induced in the action and the cases for integer
spin and half-integer spin appear to be indistinguishable. A one-loop $\beta
-$function calcul... | 1992-10-18 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | Sumathi Rao and Diptiman Sen |
hep-th/9210095 | Symplectic Geometries on $T^*\widetilde{G}$, Hamiltonian Group Actions
and Integrable Systems | Various Hamiltonian actions of loop groups $\wt G$ and of the algebra
$\text{diff}_1$ of first order differential operators in one variable are
defined on the cotangent bundle $T^*\wt G$ of a Loop Group. The moment maps
generating the $\text{diff}_1$ actions are shown to factorize through those
generating the loop grou... | 1992-10-17 | 2014-10-07 | [
"hep-th",
"math.QA",
"math.SG"
] | John Harnad and B. A. Kupershmidt |
hep-th/9210094 | A Candidate For The QCD String Based On Non-Backtracking Random Walks | A new string theory is proposed as a candidate for the large N limit of QCD.
In this theory, strings are constrained to be non-backtracking; a condition
that is essential for the gauge invariance of the underlying field theory.This
condition is implemented by first placing the theory on a lattice and then
introducing f... | 1992-10-17 | 2009-10-22 | [
"hep-th"
] | Korkut Bardakci |
hep-th/9210086 | Generalized $XYZ$ Model Associated to Sklyanin Algebra$^*$ | The free energy of a lattice model, which is a generalization of the
Heisenberg $XYZ$ model with the higher spin representation of the Sklyanin
algebra, is calculated by the generalized Bethe Ansatz of Takhtajan and
Faddeev. (Talk given at the XXI Differential Geometry Methods in Theoretical
Physics, Tianjin, China 5-9... | 1992-10-16 | 2007-05-23 | [
"hep-th"
] | Takashi Takebe |
hep-th/9210093 | Exact Solutions for Self--Dual Yang--Mills and Self--Dual Tensor
Multiplets on Gravitational Instanton Background | We give exact solutions for a recently developed ~$N=1$~ locally
supersymmetric self-dual gauge theories in $~(2+2)\-$dimensions. We give the
exact solutions for an $~SL(2)$~ self-dual Yang-Mills multiplet and what we
call ``self-dual tensor multiplet'' on the gravitational instanton background
by Eguchi-Hanson. We use... | 1992-10-16 | 2009-10-22 | [
"hep-th"
] | Hitoshi Nishino |
hep-th/9210092 | A Natural Mechanism for Supersymmetry Breaking with Zero Cosmological
Constant (Minor corrections of some formulae, no substantial change) | Supersymmetric theories in four dimensions with chiral superfields have very
rich BRS cohomology, which gives rise to potential anomalies in theories that
contain composite antichiral spinor superfields. Assuming the coefficients are
non-zero, absence of the anomalies would generate new constraints on theories.
In addi... | 1992-10-16 | 2008-02-03 | [
"hep-th",
"hep-ph"
] | J. A. Dixon |
hep-th/9210089 | Darboux Coordinates and Liouville-Arnold Integration in Loop Algebras | Darboux coordinates are constructed on rational coadjoint orbits of the
positive frequency part $\wt{\frak{g}}^+$ of loop algebras. These are given by
the values of the spectral parameters at the divisors corresponding to
eigenvector line bundles over the associated spectral curves, defined within a
given matrix repres... | 1992-10-16 | 2009-10-22 | [
"hep-th"
] | M.R. Adams, J. Harnad and J. Hurtubise |
hep-th/9210084 | Fermionic Coset Models as Topological Models | By considering the fermionic realization of $G/H$ coset models, we show that
the partition function for the $U(1)/U(1)$ model defines a Topological Quantum
Field Theory and coincides with that for a 2-dimensional Abelian BF system. In
the non-Abelian case, we prove the topological character of $G/G$ coset models
by exp... | 1992-10-16 | 2015-06-26 | [
"hep-th"
] | G.L. Rossini and F.A. Schaposnik |
hep-th/9210088 | A Conformal Affine Toda Model of 2D Black Holes: A Quantum Study of the
Evaporation End-Point | In this paper we reformulate the dilaton-gravity theory of Callan \etal\ as a
new effective conformal field theory which turns out to be a generalization of
the so-called $SL_2$-conformal affine Toda (CAT) theory studied some times ago
by Babelon and Bonora. We quantize this model, thus keeping in account the
dilaton-g... | 1992-10-16 | 2008-11-26 | [
"hep-th"
] | F.Belgiorno, A.S.Cattaneo, M.Martellini and F.Fucito |
hep-th/9210087 | Chern-Simons Theory on the Torus | We compute explicitly the Schr\"odinger picture space of states of SU(2)
Chern-Simons theory on $T^2\times R$ in the presence of temporal Wilson lines.
Relation with Friedan-Shenker bundle of conformal field theory and the
existence of a projective flat connection on this bundle is discussed. Talk
given by the first au... | 1992-10-16 | 2007-05-23 | [
"hep-th"
] | F. Falceto, K. Gaw\c{e}dzki (IHES, France) |
hep-th/9210085 | A Novel Representation for the Free Energy in String Theory at Non-Zero
Temperature | A novel representation ---in terms of a Laurent series--- for the free energy
of string theory at non-zero temperature is constructed. The examples of open
bosonic, open supersymmetric and closed bosonic strings are studied in detail.
In all these cases the Laurent series representation for the free energy is
obtained ... | 1992-10-16 | 2009-09-17 | [
"hep-th"
] | A.A. Bytsenko, E. Elizalde, S.D. Odintsov and S. Zerbini |
hep-th/9210090 | Nearby CFT's in the operator formalism: The role of a connection | There are two methods to study families of conformal theories in the operator
formalism. In the first method we begin with a theory and a family of deformed
theories is defined in the state space of the original theory. In the other
there is a distinct state space for each theory in the family, with the
collection of s... | 1992-10-16 | 2009-10-22 | [
"hep-th"
] | K.Ranganathan |
hep-th/9210080 | On The Hamiltonian Structures and The Reductions of The KP Hierarchy | Recent work on a free field realization of the Hamiltonian structures of the
classical KP hierarchy and of its flows is reviewed. It is shown that it
corresponds to a reduction of KP to the NLS system. (Talk given by D.A.D. at
the NSERC-CAP Workshop on Quantum Groups, Integrable Models and Statistical
Systems, Kingston... | 1992-10-15 | 2007-05-23 | [
"hep-th"
] | Didier A Depireux and Jeremy Schiff |
hep-th/9210081 | A note on 2D chiral gravity and chiral bosons | Quantization of two dimensional chiral matter coupled to gravity induces an
effective action for the zweibein field which is both Weyl and Lorentz
anomalous. Recently, the quantization of this induced action has been analyzed
in the light-cone gauge as well as in the conformal gauge. An apparent mismatch
between the re... | 1992-10-15 | 2009-10-22 | [
"hep-th"
] | Fiorenzo Bastianelli |
hep-th/9210082 | Chiral Non-Critical Strings | It is shown that conformal matter with $c_{\ssc L}\not=c_{\ssc R}$ can be
consistently coupled to two-dimensional `frame' gravity. The theory is
quantized in conformal gauge, following David, and Distler and Kawai. There is
no analogue of the $c=1$ barrier found in nonchiral non-critical strings. A
non-critical heterot... | 1992-10-15 | 2007-05-23 | [
"hep-th"
] | R.C. Myers and V. Periwal |
hep-th/9210091 | Even and odd symplectic and K\"ahlerian structures on projective
superspaces | Supergeneralization of $\DC P(N)$ provided by even and odd K\"ahlerian
structures from Hamiltonian reduction are construct.Operator $ \Delta$ which
used in Batalin-- Vilkovisky quantization formalism and mechanics which are
bi-Hamiltonian under corresponding even and odd Poisson brackets are
considered. | 1992-10-15 | 2008-11-26 | [
"hep-th",
"math.DG"
] | O. N. Khudaverdian, A. P. Nersessian |
hep-th/9210079 | Superstrings on Curved Spacetimes | In this lecture I summarize recent developments on strings propagating in
curved spacetime. Exact conformal field theories that describe gravitational
backgrounds such as black holes and more intricate gravitational singularities
have been discovered and investigated at the classical and quantum level. These
models are... | 1992-10-15 | 2008-02-03 | [
"hep-th"
] | Itzhak Bars |
hep-th/9210083 | Quasi-Periodic Solutions for matrix nonlinear Schroedinger Equations | The Adler-Kostant-Symes theorem yields isospectral hamiltonian flows on the
dual $\tilde\grg^{+*}$ of a Lie subalgebra $\tilde\grg^+$ of a loop algebra
$\tilde\grg$. A general approach relating the method of integration of
Krichever, Novikov and Dubrovin to such flows is used to obtain finite-gap
solutions of matrix No... | 1992-10-15 | 2009-10-22 | [
"hep-th"
] | M.A. Wisse |
hep-th/9210073 | Introduction to Random Matrices | These notes provide an introduction to the theory of random matrices. The
central quantity studied is $\tau(a)= det(1-K)$ where $K$ is the integral
operator with kernel $1/\pi} {\sin\pi(x-y)\over x-y} \chi_I(y)$. Here
$I=\bigcup_j(a_{2j-1},a_{2j})$ and $\chi_I(y)$ is the characteristic function
of the set $I$. In the G... | 1992-10-14 | 2015-06-26 | [
"hep-th",
"cond-mat",
"math-ph",
"math.MP",
"nlin.SI",
"solv-int"
] | Craig A. Tracy and Harold Widom |
hep-th/9210078 | On The Algebraic Characterization of Aperiodic Tilings Related To
ADE-Root Systems | \noindent The algebraic characterization of classes of locally isomorphic
aperiodic tilings, being examples of quantum spaces, is conducted for a certain
type of tilings in a manner proposed by A. Connes.
These $2$-dimensional tilings are obtained by application of the strip method
to the root lattice of an $ADE$-Cox... | 1992-10-14 | 2008-02-03 | [
"hep-th"
] | Johannes Kellendonk |
hep-th/9210077 | Isospectral flow in Loop Algebras and Quasiperiodic Solutions of the
Sine-Gordon Equation | The sine-Gordon equation is considered in the hamiltonian framework provided
by the Adler-Kostant-Symes theorem. The phase space, a finite dimensional
coadjoint orbit in the dual space $\grg^*$ of a loop algebra $\grg$, is
parametrized by a finite dimensional symplectic vector space $W$ embedded into
$\grg^*$ by a mome... | 1992-10-14 | 2009-10-22 | [
"hep-th"
] | J. Harnad and M.-A. Wisse |
hep-th/9210076 | Gravitational Instantons in Heterotic String Theory: The H-Map and the
Moduli Deformations of (4,4) Superconformal Field Theories | We study the problem of string propagation in a general instanton background
for the case of the complete heterotic superstring. We define the concept of
generalized HyperK\" ahler manifolds and we relate it to (4,4) superconformal
theories. We propose a generalized h-map construction that predicts a universal
SU(6) sy... | 1992-10-14 | 2009-10-22 | [
"hep-th"
] | M.Billo', P.Fre', L.Girardello, A.Zaffaroni |
hep-th/9210074 | Level-Spacing Distributions and the Airy Kernel | Scaling level-spacing distribution functions in the ``bulk of the spectrum''
in random matrix models of $N\times N$ hermitian matrices and then going to the
limit $N\to\infty$, leads to the Fredholm determinant of the sine kernel
$\sin\pi(x-y)/\pi (x-y)$. Similarly a double scaling limit at the ``edge of the
spectrum''... | 1992-10-14 | 2009-07-13 | [
"hep-th",
"cond-mat",
"math-ph",
"math.MP",
"nlin.SI",
"solv-int"
] | Craig A. Tracy and Harold Widom |
hep-th/9210072 | Topological versus Non--Topological Theories and $p-q$ Duality in $c \le
1$ 2d Gravity Models | We discuss the non--perturbative formulation for $c \leq 1$ string theory.
The field theory like formulation of topological and non--topological models is
presented. The integral representation for arbitrary $(p,q)$ solutions is
derived which explicitly obeys $p-q$ duality of these theories. The exact
solutions to stri... | 1992-10-14 | 2007-05-23 | [
"hep-th"
] | S.Kharchev, A.Marshakov |
hep-th/9210075 | On Paragrassmann Differential Calculus | Explicit general constructions of paragrassmann calculus with one and many
variables are given. Relations of the paragrassmann calculus to quantum groups
are outlined and possible physics applications are briefly discussed. This
paper is the same as the original 9210075 except added Appendix and minor
changes in Acknow... | 1992-10-14 | 2009-10-22 | [
"hep-th"
] | A.T. Filippov, A.P. Isaev and A.B. Kurdikov |
hep-th/9210069 | Hilbert space cocycles as representations of $(3+1)-$ D current algebras | It is proposed that instead of normal representations one should look at
cocycles of group extensions valued in certain groups of unitary operators
acting in a Hilbert space (e.g the Fock space of chiral fermions), when dealing
with groups associated to current algebras in gauge theories in $3+1$
space-time dimensions.... | 1992-10-13 | 2010-11-01 | [
"hep-th"
] | Jouko Mickelsson |
hep-th/9210071 | Matrix Nonlinear Schr\"odinger Equations and Moment Maps into Loop
Algebras${}^\dag$ | It is shown how Darboux coordinates on a reduced symplectic vector space may
be used to parametrize the phase space on which the finite gap solutions of
matrix nonlinear Schr\"odinger equations are realized as isospectral
Hamiltonian flows. The parametrization follows from a moment map embedding of
the symplectic vecto... | 1992-10-13 | 2009-10-22 | [
"hep-th"
] | J. Harnad and M.-. Wisse |
hep-th/9210070 | On the Quantization of Reducible Gauge Systems | Reducible gauge theories with constraints linear in the momenta are
quantized. The equivalence of the reduced phase space quantization, Dirac
quantization and BRST quantization is established. The ghosts of ghosts are
found to play a crucial role in the equivalence proof. | 1992-10-13 | 2014-11-18 | [
"hep-th"
] | R. Ferraro, M. Henneaux and M. Puchin |
hep-th/9210068 | Symmetry structure of special geometries | Using techniques from supergravity and dimensional reduction, we study the
full isometry algebra of K\"ahler and quaternionic manifolds with special
geometry. These two varieties are related by the so-called c-map, which can be
understood from dimensional reduction of supergravity theories or by changing
chirality assi... | 1992-10-13 | 2009-10-22 | [
"hep-th"
] | B. de Wit, F. Vanderseypen and A. Van Proeyen |
hep-th/9210067 | The complete solution to the constant quantum Yang-Baxter equation in
two dimensions | We describe how the complete solution to the two-dimensional constant quantum
Yang-Baxter equation [J. Hietarinta, Phys. Lett. A165,245(1992)] was found.
(Talk presented at the XIX International Colloquium on Group Theoretical
Methods in Physics.) | 1992-10-13 | 2009-10-22 | [
"hep-th"
] | J. Hietarinta |
hep-th/9210066 | Generalized Integrability and two-dimensional Gravitation | We review the construction of generalized integrable hierarchies of partial
differential equations, associated to affine Kac-Moody algebras, that include
those considered by Drinfel'd and Sokolov. These hierarchies can be used to
construct new models of 2D quantum or topological gravity, as well as new $\cal
W$-algebra... | 1992-10-12 | 2016-01-27 | [
"hep-th"
] | T. Hollowood, J.L. Miramontes and J. Sanchez Guillen |
hep-th/9210064 | Fractional Superstrings with Critical Spacetime Dimensions Four and Six:
A Status Report | Fractional superstrings are non-trivial generalizations of ordinary
superstrings and heterotic strings, and have critical spacetime dimensions
which are less than ten by virtue of a worldsheet fractional supersymmetry
relating worldsheet bosons to worldsheet parafermions. In this paper, I provide
a short non-technical ... | 1992-10-12 | 2007-05-23 | [
"hep-th"
] | Keith R. Dienes (McGill Univ.) |
hep-th/9210063 | Yang-Baxter Equation for $A^{(1)}_{n-1}$ Broken ${\Bf Z}_N $ Models | We construct a factorized representation of the $\frak g \frak l _n$-Sklyanin
algebra from the vertex-face correspondence. Using this representation, we
obtain a new solvable model which gives an $\frak s \frak l _n$-generalization
of the broken $\bz _N $ model. We further prove the Yang-Baxter equation for
this model. | 1992-10-12 | 2009-10-22 | [
"hep-th"
] | Yas-hiro Quano and Akira Fujii |
hep-th/9210065 | Some Computations in Background Independent Open-String Field Theory | Recently, background independent open-string field theory has been formally
defined in the space of all two-dimensional world-sheet theories. In this
paper, to make the construction more concrete, I compute the action for an
off-shell tachyon field of a certain simple type. From the computation it
emerges that, althoug... | 1992-10-12 | 2010-04-07 | [
"hep-th"
] | Edward Witten |
hep-th/9210062 | Critical String Vacua from Noncritical Manifolds: A Novel Framework for
String Compactification | A new framework is found for the compactification of supersymmetric string
theory. It is shown that the massless spectra of Calabi--Yau manifolds of
complex dimension $D_{crit}$ can be derived from noncritical manifolds of
complex dimension $2k + D_{crit}$, $k\geq 1$. These higher dimensional
manifolds are spaces whose... | 1992-10-12 | 2010-11-01 | [
"hep-th"
] | Rolf Schimmrigk |
hep-th/9210061 | Symmetries of P-Branes | Using canonical methods, we study the invariance properties of a bosonic
$p$--brane propagating in a curved background locally diffeomorphic to $M\times
G$, where $M$ is spacetime and $G$ a group manifold. The action is that of a
gauged sigma model in $p+1$ dimensions coupled to a Yang--Mills field and a
$(p+1)$--form ... | 1992-10-11 | 2015-06-26 | [
"hep-th"
] | R. Percacci and E. Sezgin |
hep-th/9210058 | Boussinesq-type equations from nonlinear realizations of $W_3$ | We construct new coset realizations of infinite-dimensional linear
$W_3^{\infty}$ symmetry associated with Zamolodchikov's $W_3$ algebra which are
different from the previously explored $sl_3$ Toda realization of
$W_3^{\infty}$. We deduce the Boussinesq and modified Boussinesq equations as
constraints on the geometry o... | 1992-10-10 | 2015-06-26 | [
"hep-th"
] | E. Ivanov, S. Krivonos and R.P. Malik |
hep-th/9210059 | N=3 Supersymmetric Extension of KdV Equation | We construct a one-parameter family of N=3 supersymmetric extensions of the
KdV equation as a Hamiltonian flow on N=3 superconformal algebra and argue that
it is non-integrable for any choice of the parameter. Then we propose a
modified N=3 super KdV equation which possesses the higher order conserved
quantities and so... | 1992-10-10 | 2007-05-23 | [
"hep-th"
] | S.Bellucci, E.Ivanov and S.Krivonos |
hep-th/9210060 | Supersymmetry and the Nonlocal Yangian Deformation Symmetry | In the quantized two-dimensional non-linear supersymmetric $\sigma$-model,
the supercurrent supermultiplet, which contains the energy-momentum tensor, is
transformed by the nonlocal symmetry of the model into the isospin current
supermultiplet. This effect incorporates supersymmetry into the known
infinite-dimensional ... | 1992-10-10 | 2009-10-02 | [
"hep-th"
] | T. Curtright and C. Zachos |
hep-th/9210050 | Black Holes and Solitons in String Theory | In this review, I discuss a general method for constructing classical
solutions of the equations of motion arising in the effective low energy string
theory, and discuss specific applications of this method. (Based on talks given
at the Johns Hopkins Workshop held at Goteborg, June 8-10, 1992, and ICTP
Summer Workshop ... | 1992-10-09 | 2007-05-23 | [
"hep-th",
"gr-qc"
] | Ashoke Sen |
hep-th/9210056 | Simple Approach to Thermal Bethe Ansatz | We report on a new approach to the calculation of thermodynamic functions for
crossing-invariant models solvable by Bethe Ansatz. In the case of the XXZ
Heisenberg chain we derive, for arbitrary values of the anysotropy, a single
non-linear integral equation from which the free energy can be exactly
calculated.These eq... | 1992-10-09 | 2007-05-23 | [
"hep-th"
] | H.J. de Vega |
hep-th/9210048 | Rotation Symmetry and Nonabelian Berry Potential | We study the role of rotational symmetry in the systems where nonabelian
Berry potentials emerge as a result of integrating out fast degrees of freedom.
The conserved angular momentum is constructed in the presence of a non-abelian
Berry potential, which is formulated using Grassmann variables. The
modifications on con... | 1992-10-09 | 2007-05-23 | [
"hep-th",
"hep-ph",
"nucl-th"
] | Hyun Kyu Lee and Mannque Rho |
hep-th/9210049 | Heterotic Parafermionic Superstring | Superstrings have been postulated based on parafermionic partition functions
which permit spacetime supersymmetry by generalized Jacobi identities. A
comprehensive search finds new such identities. Quadrilateral anomaly
cancellation gives constraints on allowed chiral fermions. Bosonic left-movers
and $Z_4$ parafermion... | 1992-10-09 | 2009-10-22 | [
"hep-th"
] | Paul H. Frampton and James T. Liu |
hep-th/9210055 | Time-dependent perturbations in two-dimensional String Black Holes | We discuss time-dependent perturbations (induced by matter fields) of a
black-hole background in tree-level two-dimensional string theory. We analyse
the linearized case and show the possibility of having black-hole solutions
with time-dependent horizons. The latter exist only in the presence of
time-dependent `tachyon... | 1992-10-09 | 2009-10-22 | [
"hep-th"
] | G. A. Diamandis, B. C. Georgalas, X. Maintas and N.E. Mavromatos |
hep-th/9210057 | Peculiarity of String Theory on Orbifolds in the Presence of an
Antisymmetric Background Field | We study string theory on orbifolds in the presence of an antisymmetric
constant background field and discuss some of new aspects of the theory. It is
shown that the term with the antisymmetric field has a topological nature like
a Chern-Simons term or a Wess-Zumino term. Due to this property, the theory
exhibits vario... | 1992-10-09 | 2007-05-23 | [
"hep-th"
] | Makoto Sakamoto |
hep-th/9210053 | On the Landau-Ginzburg description of $(A_1^{(1)})^{\oplus N}$
invariants | We search for a \Lg\ interpretation of non-diagonal modular invariants of
tensor products of minimal $n=2$ superconformal models, looking in particular
at automorphism invariants and at some exceptional cases. For the former we
find a simple description as \lgo s, which reproduce the correct chiral rings
as well as the... | 1992-10-09 | 2015-06-26 | [
"hep-th"
] | J\"urgen Fuchs and Maximilian Kreuzer |
hep-th/9210051 | Remarks on deformed and undeformed Knizhnik-Zamolodchikov equations | Deformed and undeformed KZ equations are considered for $k=0$. It is shown
that they allow the same number of solutions, one being the asymptotics of
others. Essential difference in analitical properties of the solutions is
explained. | 1992-10-09 | 2008-02-03 | [
"hep-th"
] | Fedor A. Smirnov |
hep-th/9210054 | Localization of Massless Spinning Particles and the Berry Phase | The components of the position operator, at a fixed time, for a massless and
spinning particle with given helicity $\lambda$ described in terms of bosonic
degrees of freedom have an anomalous commutator proportional to $\lambda$. The
position operator generates translations in momentum space. We show that a
ray-represe... | 1992-10-09 | 2007-05-23 | [
"hep-th"
] | Bo-Sture K Skagerstam |
hep-th/9210052 | Form Factors, deformed Knizhnik-Zamolodchikov equations and finite-gap
integration | We study the limit of asymptotically free massive integrable models in which
the algebra of nonlocal charges turns into affine algebra. The form factors of
fields in that limit are described by KZ equations on level 0. We show the
limit to be connected with finite-gap integration of classical integrable
equations. | 1992-10-09 | 2009-10-22 | [
"hep-th"
] | Fedor A. Smirnov |
hep-th/9210047 | String Theory: Lessons for Low Energy Physics | This talk considers possible lessons of string theory for low energy physics.
These are of two types. First, assuming that string theory is the correct
underlying theory of all interactions, we ask whether there are any generic
predictions the theory makes, and we compare the predictions of string theory
with those of ... | 1992-10-08 | 2009-10-22 | [
"hep-th",
"hep-ph"
] | Michael Dine |
hep-th/9210037 | Generalized Drinfeld-Sokolov Reductions and KdV Type Hierarchies | Generalized Drinfeld-Sokolov (DS) hierarchies are constructed through local
reductions of Hamiltonian flows generated by monodromy invariants on the dual
of a loop algebra. Following earlier work of De Groot et al, reductions based
upon graded regular elements of arbitrary Heisenberg subalgebras are
considered. We show... | 1992-10-08 | 2023-08-02 | [
"hep-th",
"math.QA"
] | L. Feher, John Harnad, I. Marshall |
hep-th/9210042 | The Braided Heisenberg Group | We compute the braided groups and braided matrices $B(R)$ for the solution
$R$ of the Yang-Baxter equation associated to the quantum Heisenberg group. We
also show that a particular extension of the quantum Heisenberg group is dual
to the Heisenberg universal enveloping algebra $U_{q}(h)$, and use this result
to derive... | 1992-10-08 | 2009-10-22 | [
"hep-th"
] | W.K.Baskerville and S.Majid |
hep-th/9210045 | Strings and QCD? | Is large-$N$ QCD equivalent to a string theory? Maybe, maybe not. I review
various attempts to answer the question. | 1992-10-08 | 2007-05-23 | [
"hep-th"
] | Joseph Polchinski |
hep-th/9210044 | The Quantum Double as Quantum Mechanics | We introduce $*$-structures on braided groups and braided matrices. Using
this, we show that the quantum double $D(U_q(su_2))$ can be viewed as the
quantum algebra of observables of a quantum particle moving on a hyperboloid in
q-Minkowski space (a three-sphere in the Lorentz metric), and with the role of
angular momen... | 1992-10-08 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Shahn Majid |
hep-th/9210040 | Fusion Algebras Induced by Representations of the Modular Group | Using the representation theory of the subgroups SL_2(Z_p) of the modular
group we investigate the induced fusion algebras in some simple examples. Only
some of these representations lead to 'good' fusion algebras. Furthermore, the
conformal dimensions and the central charge of the corresponding rational
conformal fiel... | 1992-10-08 | 2016-09-06 | [
"hep-th"
] | W. Eholzer |
hep-th/9210041 | Physical States in Topological Coset Models | Recent results about topological coset models are summarized. The action of a
topological ${G\over H}$ coset model ($rank\ H = rank\ G$) is written down as a
sum of ``decoupled" matter, gauge and ghost sectors.
The physical states are in the cohomology of a BRST-like operator that
relates these secotrs. The cohomolog... | 1992-10-08 | 2007-05-23 | [
"hep-th"
] | J. Sonnenschein |
hep-th/9210043 | Finite $W$ symmetry in finite dimensional integrable systems | By generalizing the Drinfeld-Sokolov reduction a large class of $W$ algebras
can be constructed. We introduce 'finite' versions of these algebras by Poisson
reducing Kirillov Poisson structures on simple Lie algebras. A closed and
coordinate free formula for the reduced Poisson structure is given. These
finitely genera... | 1992-10-08 | 2007-05-23 | [
"hep-th"
] | T. Tjin |
hep-th/9210046 | Effective Field Theory and the Fermi Surface | This is an introduction to the method of effective field theory. As an
application, I derive the effective field theory of low energy excitations in a
conductor, the Landau theory of Fermi liquids, and explain why the high-$T_c$
superconductors must be described by a different effective field theory. | 1992-10-08 | 2008-02-03 | [
"hep-th",
"cond-mat",
"hep-lat",
"hep-ph"
] | Joseph Polchinski |
hep-th/9210038 | A new insight into BRST anomalies in string theory | Using the generalized hamiltonian method of Batalin, Fradkin and Vilkovisky,
we investigate the algebraic structure of anomalies in the Polyakov string
theory that appear as the Schwinger terms in super-commutation relations
between BRST charge and total hamiltonian. We obtain the most general form of
the anomalies in ... | 1992-10-08 | 2009-10-22 | [
"hep-th"
] | T. Fujiwara, Y. Igarashi, J. Kubo, K. Maeda |
hep-th/9210033 | The weaving of curved geometries | In the physical interpretation of states in non-perturbative loop quantum
gravity the so-called weave states play an important role. Until now only
weaves representing flat geometries have been introduced explicitly. In this
paper the construction of weaves for non-flat geometries is described; in
particular, weaves re... | 1992-10-07 | 2009-10-22 | [
"hep-th"
] | Joost Zegwaard |
hep-th/9210039 | The universal R-matrix and its associated quantum algebra as functionals
of the classical r-matrix: the $sl_{2}$ case | Using a geometrical approach to the quantum Yang-Baxter equation, the quantum
algebra ${\cal U}_{\hbar}(sl_{2})$ and its universal quantum $R$-matrix are
explicitely constructed as functionals of the associated classical $r$-matrix.
In this framework, the quantum algebra ${\cal U}_{\hbar}(sl_{2})$ is naturally
imbedded... | 1992-10-07 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Laurent Freidel and J. M. Maillet |
hep-th/9210036 | Geometric Gravitational Forces on Particles Moving in a Line | In two-dimensional space-time, point particles can experience a geometric,
dimension-specific gravity force, which modifies the usual geodesic equation of
motion and provides a link between the cosmological constant and the vacuum
$\theta$-angle. The description of such forces fits naturally into a gauge
theory of grav... | 1992-10-07 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Daniel Cangemi and Roman Jackiw |
hep-th/9210032 | q-deformed lattice gauge theory and 3-manifold invariants | The notion of $q$-deformed lattice gauge theory is introduced. If the
deformation parameter is a root of unity, the weak coupling limit of a 3-$d$
partition function gives a topological invariant for a corresponding
3-manifold. It enables us to define the generalized Turaev-Viro invariant for
cell complexes. It is show... | 1992-10-07 | 2015-06-26 | [
"hep-th"
] | D.V. Boulatov |
hep-th/9210035 | Influence Functionals and the Accelerating Detector | The influence functional is derived for a massive scalar field in the ground
state, coupled to a uniformly accelerating DeWitt monopole detector in $D+1$
dimensional Minkowski space. This confirms the local nature of the Unruh
effect, and provides an exact solution to the problem of the accelerating
detector without in... | 1992-10-07 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | J.R. Anglin |
hep-th/9210034 | Thermal Equilibrium from the Hu-Paz-Zhang Master Equation | The exact master equation for a harmonic oscillator coupled to a heat bath,
derived recently by Hu, Paz and Zhang, is simplified by taking the
weak-coupling, late-time limit. The unique time-independent solution to this
simplified master equation is the canonical ensemble at the temperature of the
bath. The frequency o... | 1992-10-07 | 2007-05-23 | [
"hep-th",
"gr-qc"
] | J.R. Anglin |
hep-th/9210027 | On the definition of Quantum Free Particle on Curved Manifolds | A selfconsistent definition of quantum free particle on a generic curved
manifold emerges naturally by restricting the dynamics to submanifolds of
co-dimension one.
PACS 0365 0240 | 1992-10-06 | 2008-11-26 | [
"hep-th"
] | C. Destri, P. Maraner and E. Onofri |
hep-th/9210026 | Faddeev-Popov method for anomalous quasigroups | A generalization of the Faddeev-Popov procedure to deal with either anomalous
and non-anomalous gauge theories with closed, irreducible gauge algebra is
presented. An expression for the Wess-Zumino action is obtained. | 1992-10-06 | 2016-08-14 | [
"hep-th"
] | Jordi Par\'is |
hep-th/9210028 | Schwinger-Dyson equation in three-dimensional simplicial quantum gravity | We study the simplicial quantum gravity in three dimensions. Motivated by the
Boulatov's model which generates a sum over simplicial complexes weighted with
the Turaev-Viro invariant, we introduce boundary operators in the simplicial
gravity associated to compact orientable surfaces. An amplitude of the boundary
operat... | 1992-10-06 | 2009-09-17 | [
"hep-th"
] | Hirosi Ooguri |
hep-th/9210030 | Twisted Sector Yukawa Couplings for the $Z_3\times Z_3$ Orbifold | The moduli dependent Yukawa couplings between twisted sectors of the
$Z_3\times Z_3$ orbifold are studied. | 1992-10-06 | 2015-06-26 | [
"hep-th"
] | D. Bailin, A. Love and W.A. Sabra |
hep-th/9210031 | Charged String-like Solutions of Low-energy Heterotic String Theory | Two string-like solutions to the equations of motion of the low-energy
effective action for the heterotic string are found, each a source of electric
and magnetic fields. The first carries an electric current equal to the
electric charge per unit length and is the most general solution which
preserves one half of the s... | 1992-10-06 | 2009-10-22 | [
"hep-th"
] | Daniel Waldram |
hep-th/9210029 | The Nonlinear Schrodinger Equation and Conserved Quantities in the
Deformed Parafermion and SL(2,R)/U(1) Coset Models | The relationship between the nonlinear Schrodinger hierarchy and the
parafermion and SL(2,R)/U(1) coset models, analogous to the relationship
between the KdV hierarchy and the minimal models, is explained. To do this I
first present an in depth study of a series of integrable hierarchies related
to NLS, and write down ... | 1992-10-06 | 2007-05-23 | [
"hep-th"
] | Jeremy Schiff |
hep-th/9210022 | Comment on Gauge-Independent Analysis of Chern-Simons Theory with Matter
Coupling | It is shown that a recently proposed relativistic field theory of anyons is
mathematically flawed and also does not satisfy reasonable criteria for such a
theory. | 1992-10-05 | 2009-10-22 | [
"hep-th"
] | C. R. Hagen |
hep-th/9210023 | Infinite Braided Tensor Products and 2-D quantum Gravity | Braided tensor products have been introduced by the author as a systematic
way of making two quantum-group-covariant systems interact in a covariant way,
and used in the theory of braided groups. Here we study infinite braided tensor
products of the quantum plane (or other constant Zamolodchikov algebra). It
turns out ... | 1992-10-05 | 2007-05-23 | [
"hep-th"
] | S. Majid |
hep-th/9210024 | Quantum Group Gauge Theory on Classical Spaces | We study the quantum group gauge theory developed elsewhere in the limit when
the base space (spacetime) is a classical space rather than a general quantum
space. We show that this limit of the theory for gauge quantum group $U_q(g)$
is isomorphic to usual gauge theory with Lie algebra $g$. Thus a new kind of
gauge the... | 1992-10-05 | 2011-07-19 | [
"hep-th"
] | T. Brzezinski and S. Majid |
hep-th/9210020 | On the Linearized Artin Braid Representation | We linearize the Artin representation of the braid group given by (right)
automorphisms of a free group providing a linear faithful representation of the
braid group. This result is generalized to obtain linear representations for
the coloured braid groupoid and pure braid group too. Applications to some
areas of two-d... | 1992-10-05 | 2008-02-03 | [
"hep-th",
"math.GR",
"math.QA"
] | F. Constantinescu, F. Toppan |
hep-th/9210021 | Duality Symmetries from Non--Abelian Isometries in String Theories | In string theory it is known that abelian isometries in the sigma model lead
to target space duality. We generalize this duality to backgrounds with
non--abelian isometries. The procedure we follow consists of gauging the
isometries of the original action and constraining the field strength $F$ to
vanish. This new acti... | 1992-10-05 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Xenia C. de la Ossa and Fernando Quevedo |
hep-th/9210025 | Rogers dilogarithm in integrable systems | We dicuss some curious aspects of the Rogers dilogarithm and the functional
relations in integrable systems in two dimensions. This is for the proceedings
of the XX1 Differential Geometry Methods in Theoretical Physics, Tianjin,
China, 5-9 June 1992. | 1992-10-05 | 2011-01-28 | [
"hep-th"
] | A. Kuniba and T. Nakanishi |
hep-th/9210019 | On the quantisation of SU(2) magnetic monopole dynamics | We argue that there is no consistent quantisation of the two BPS SU(2)
magnetic monopole dynamical system compatible with the correspondence
principle. | 1992-10-04 | 2007-05-23 | [
"hep-th"
] | M. Temple-Raston |
hep-th/9210018 | The Cosmological Kibble Mechanism in the Laboratory: String Formation in
Liquid Crystals | I report on the observation of the production of strings (disclination lines
and loops) via the Kibble mechanism of domain (bubble) formation in the
isotropic to nematic phase transition of a sample of uniaxial nematic liquid
crystal. The probablity of string formation per bubble is measured to be $0.33
\pm 0.01$. This... | 1992-10-03 | 2008-02-03 | [
"hep-th"
] | Mark Bowick |
hep-th/9210013 | Vacuum energy on orbifold factors of spheres | The vacuum energy is calculated for a free, conformally-coupled scalar field
on the orbifold space-time \R$\times \S^2/\Gamma$ where $\Gamma$ is a finite
subgroup of O(3) acting with fixed points. The energy vanishes when $\Gamma$ is
composed of pure rotations but not otherwise. It is shown on general grounds
that the ... | 1992-10-02 | 2010-11-01 | [
"hep-th"
] | Peter Chang and J.S.Dowker |
hep-th/9210016 | Finite Temperature Strings | These are lecture notes for the 1992 Erice Workshop on String Quantum Gravity
and Physics at the Planck Energy Scale. In this talk a review of earlier work
on finite temperature strings was presented. Several topics were covered,
including the canonical and microcanonical ensemble of strings, the behavior of
strings ne... | 1992-10-02 | 2007-05-23 | [
"hep-th"
] | Mark J. Bowick |
hep-th/9210015 | Dilaton shift under duality and torsion of elliptic complex | We observe that the ratio of determinants of $2d$ Laplacians which appear in
the duality transformation relating two sigma models with abelian isometries
can be represented as a torsion of an elliptic (DeRham) complex. As a result,
this ratio can be computed exactly and is given by the exponential of a local
functional... | 1992-10-02 | 2009-09-17 | [
"hep-th"
] | A.S. Schwarz and A.A. Tseytlin |
hep-th/9210014 | Two--poles R-matrices | We study integrable dynamical systems described by a Lax pair involving a
spectral parameter. By solving the classical Yang-Baxter equation when the
R-matrix has two poles we show that they can be interpreted as natural motions
on a twisted loop algebra. | 1992-10-02 | 2007-05-23 | [
"hep-th"
] | M. Talon |
hep-th/9210017 | Supersymmetry and Positive Energy in Classical and Quantum
Two-Dimensional Dilaton Gravity | An $N = 1$ supersymmetric version of two dimensional dilaton gravity coupled
to matter is considered. It is shown that the linear dilaton vacuum
spontaneously breaks half the supersymmetries, leaving broken a linear
combination of left and right supersymmetries which squares to time
translations. Supersymmetry suggests... | 1992-10-02 | 2008-11-26 | [
"hep-th"
] | Youngchul Park and Andrew Strominger |
hep-th/9210012 | Black Holes Coupled to a Massive Dilaton | We investigate charged black holes coupled to a massive dilaton. It is shown
that black holes which are large compared to the Compton wavelength of the
dilaton resemble the Reissner-Nordstr\"om solution, while those which are
smaller than this scale resemble the massless dilaton solutions. Black holes of
order the Comp... | 1992-10-02 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | J. Horne and G. Horowitz |
hep-th/9210007 | Virasoro Representations on Fusion Graphs | For any non-unitary model with central charge c(2,q) the path spaces
associated to a certain fusion graph are isomorphic to the irreducible Virasoro
highest weight modules. | 1992-10-01 | 2009-10-22 | [
"hep-th"
] | J. Kellendonk and A. Recknagel |
hep-th/9210011 | Gauge Theories on a Cylinder | (a few typos and an error corrected) | 1992-10-01 | 2009-10-22 | [
"hep-th"
] | E. Langmann and G. Semenoff |
hep-th/9210001 | String Theory at Short Distance and the Principle of Equivalence | Point particles fall freely along geodesics; strings do not. In string theory
all probes of spacetime structure, including photons, are extended objects and
therefore always subject to tidal forces. We illustrate how string theory
modifies the behavior of light in weak gravitational fields and limits the
applicability ... | 1992-10-01 | 2007-05-23 | [
"hep-th",
"astro-ph",
"gr-qc"
] | Paul F. Mende |
hep-th/9210006 | Stability of Vacua and Domain Walls in Supergravity and Superstring
Theory | We address the possibility of false vacuum decay in $N=1$ supergravity
theories, including those corresponding to superstring vacua. By establishing a
Bogomol'nyi bound for the energy density stored in the domain wall of the
$O(4)$ invariant bubble, we show that supersymmetric vacua remain absolutely
stable against fal... | 1992-10-01 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Mirjam Cvetic |
hep-th/9210004 | W Algebras, W Gravities and their Moduli Spaces | By generalizing the Drinfel'd--Sokolov reduction we construct a large class
of W algebras as reductions of Kac--Moody algebras. Furthermore we construct
actions, invariant under local left and right W transformations, which are the
classical covariant induced actions for W gravity. Talk presented by T. Tjin at
the Trie... | 1992-10-01 | 2007-05-23 | [
"hep-th"
] | F. A. Bais, T. Tjin, P. van Driel, J. de Boer and J. Goeree |
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