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/9212002 | Two Dimensional Black Hole Evapolation in the Light-Cone Gauge | Quantization of the pure $1+1$ dimensional dilaton gravity is examined in the
light-cone gauge. It is found that the total action including ghosts generates
a $c=0$ free conformal field theory without modification of the classical
action, which is required in the conformal gauge. We also study semiclassical
equations o... | 1992-12-01 | 2008-11-26 | [
"hep-th"
] | Haruhiko Terao |
hep-th/9211141 | 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 scaling limit at the ``edge of the
spectrum'' leads ... | 1992-12-01 | 2009-07-11 | [
"hep-th",
"cond-mat",
"math-ph",
"math.MP",
"nlin.SI",
"solv-int"
] | Craig A. Tracy and Harold Widom |
hep-th/9211133 | An Introduction to Yangian Symmetries | We review some aspects of the quantum Yangians as symmetry algebras of
two-dimensional quantum field theories. The plan of these notes is the
following: 1 - The classical Heisenberg model: Non-Abelian symmetries;
The generators of the symmetries and the semi-classical Yangians;
An alternative presentation of the se... | 1992-11-30 | 2008-11-26 | [
"hep-th"
] | Denis Bernard |
hep-th/9211137 | Dilogarithm identities and spectra in conformal field theory | We prove new identities between the values of Rogers dilogarithm function and
describe a connection between these identities and spectra in conformal field
theory. | 1992-11-30 | 2008-02-03 | [
"hep-th",
"math.CA"
] | Anatol N. Kirillov |
hep-th/9211139 | Nonperturbative Conditions for Local Weyl Invariance on a Curved World
Sheet | We investigate Weyl anomalies on a curved world sheet to second order in a
weak field expansion. Using a local version of the exact renormalization group
equations, we obtain nonperturbative results for the tachyon/graviton/dilaton
system. We discuss the elimination of redundant operators, which play a crucial
role for... | 1992-11-30 | 2009-10-22 | [
"hep-th"
] | Jens Schnittger and Ulrich Ellwanger |
hep-th/9211134 | S-Matrices of $\phi_{1,2}$ perturbed unitary minimal models:
IRF-Formulation and Bootstrap-Program | We analyze the algebraic structure of $\phi_{1,2}$ perturbed minimal models
relating them to graph-state models with an underlying Birman-Wenzl-Murakami
algebra. Using this approach one can clarify some physical properties and
reformulate the bootstrap equations. These are used to calculate the $S$-matrix
elements of h... | 1992-11-30 | 2015-06-26 | [
"hep-th"
] | A. Koubek |
hep-th/9211136 | Quantum Models of Black Hole Evaporation | The discovery of black-hole evaporation represented in many respects a
revolutionary event in scientific world; as such, in giving answers to open
questions, it gave rise to new problems part of which are still not resolved.
Here we want to make a brief review of such problems and examine some possible
solutions. Invit... | 1992-11-30 | 2022-09-21 | [
"hep-th"
] | F.Belgiorno, A.S.Cattaneo, F.Fucito and M.Martellini |
hep-th/9211140 | A View From the Island | This is a brief and subjective description of ideas which formed our present
field-theoretic understanding of fundamental physics. | 1992-11-30 | 2007-05-23 | [
"hep-th",
"hep-ph"
] | A. Polyakov |
hep-th/9211135 | Quantum Gravity and Black Hole Dynamics in 1+1 Dimensions | We study the quantum theory of 1+1 dimensional dilaton gravity, which is an
interesting toy model of the black hole dynamics. The functional measures are
explicitly evaluated and the physical state conditions corresponding to the
Hamiltonian and the momentum constraints are derived. It is pointed out that
the constrain... | 1992-11-30 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | K. Hamada and A. Tsuchiya |
hep-th/9211138 | Fusion potentials I | We reconsider the conjecture by Gepner that the fusion ring of a rational
conformal field theory is isomorphic to a ring of polynomials in $n$ variables
quotiented by an ideal of constraints that derive from a potential. We show
that in a variety of cases, this is indeed true with {\it one-variable}
polynomials. | 1992-11-30 | 2009-10-22 | [
"hep-th"
] | P. Di Francesco and J.-B. Zuber |
hep-th/9211132 | On the Double Scaling Limit of O(N) Vector Models in d=2 | Recent interest in large N matrix models in the double scaling limit raised
new interest also in O(N) vector models. The limit $N \rightarrow \infty$,
correlated with the limit $g \rightarrow g_c$, results in an expansion in terms
of filamentary surfaces and explicit calculations can be carried out also in
dimensions $... | 1992-11-29 | 2009-10-22 | [
"hep-th"
] | Paolo Di Vecchia and Moshe Moshe |
hep-th/9211131 | Large\bf $ w_{1+\infty} $--type constraints in two--matrix and
Kontsevich model--different approach | The technique of $Q$-polinomials are used to derive the $w$- constraints in
the two-matrix and Kontsevich-like model at finite $N$. These constraints are
closed and form Lie algebra. They are associated with the matrices, $\lambda
^n{\partial}_\lambda^m$ with $n,m\geq 0$. In the case of two-matrix model they
can be red... | 1992-11-29 | 2007-05-23 | [
"hep-th"
] | N.L.Khviengia |
hep-th/9211129 | Algebraically Special Class of Space-Times and (1+1)-Dimensional Field
Theories | We present the (1+1)-dimensional description of the algebraically special
class of space-times of 4-dimensions. It is described by the (1+1)-dimensional
Yang-Mills action interacting with matter fields, with diffeomorphisms of
2-surface as the gauge symmetry. Parts of the constraints are identified as the
gauge fixing ... | 1992-11-28 | 2007-05-23 | [
"hep-th",
"gr-qc"
] | J. H. Yoon |
hep-th/9211130 | Automorphisms of W-Algebras and Extended Rational Conformal Field
Theories | Many extended conformal algebras with one generator in addition to the
Virasoro field as well as Casimir algebras have non-trivial outer automorphisms
which enables one to impose `twisted' boundary conditions on the chiral fields.
We study their effect on the highest weight representations. We give formulae
for the enl... | 1992-11-28 | 2009-10-22 | [
"hep-th"
] | A. Honecker |
hep-th/9211128 | A classical N=4 super W_3 algebra | I construct classical superextensions of the Virasoro algebra by employing
the Ward identities of a linearly realized subalgebra. For the $N=4$
superconformal algebra, this subalgebra is generated by the $N=2$ $U(1)$
supercurrent and a spin~0 $N=2$ superfield. I show that this structure can be
extended to an $N=4$ supe... | 1992-11-27 | 2015-06-26 | [
"hep-th"
] | Robert Perret |
hep-th/9211126 | Separation of Variables in the Classical Integrable SL(3) Magnetic Chain | There are two fundamental problems studied by the theory of hamiltonian
integrable systems: integration of equations of motion, and construction of
action-angle variables. The third problem, however, should be added to the
list: separation of variables. Though much simpler than two others, it has
important relations to... | 1992-11-26 | 2009-10-22 | [
"hep-th",
"nlin.SI",
"solv-int"
] | E. K. Sklyanin |
hep-th/9211127 | Randomly Branched Polymers and Conformal Invariance | We argue that the field theory that descibes randomly branched polymers is
not generally conformally invariant in two dimensions at its critical point. In
particular, we show (i) that the most natural formulation of conformal
invariance for randomly branched polymers leads to inconsistencies; (ii) that
the free field t... | 1992-11-26 | 2009-10-22 | [
"hep-th"
] | Jeffrey Miller and Keith De'Bell |
hep-th/9211124 | Chiral Symmetry Breaking with the Curtis-Pennington Vertex | We study chiral symmetry breaking in quenched QED$_4$, using a vertex Ansatz
recently proposed by Curtis and Pennington. Bifurcation analysis is employed to
establish the existence of a critical coupling and to estimate its value. The
main results are in qualitative agreement with the ladder approximation, the
numerica... | 1992-11-26 | 2009-10-22 | [
"hep-th"
] | D. Atkinson, V.P. Gusynin and P. Maris |
hep-th/9211125 | R-matrices for highest weight representations of sl_q(2,C) at roots of
unity | The general formula for R-matrices of slq(2,C) for the highest weight repre-
sentations both for general q and for q being a root of unity by generalizing
G.Gomez's and G.Sierra's one for semiperiodic representations of slq(2,C) at
roots of unity is presented. | 1992-11-26 | 2008-02-03 | [
"hep-th",
"math.QA"
] | T. S. Hakobyan and A. G. Sedrakyan |
hep-th/9211123 | Gauging octonion algebra | By consireding representation theory for non-associative algebras we
construct the fundamental and adjoint representations of the octonion algebra.
We then show how these representations by associative matrices allow a
consistent octonionic gauge theory to be realised. We find that
non-associativity implies the existen... | 1992-11-26 | 2007-05-23 | [
"hep-th"
] | A.K.Waldron and G.C.Joshi |
hep-th/9211119 | Topological Orbifold Models and Quantum Cohomology Rings | We discuss the toplogical sigma model on an orbifold target space. We
describe the moduli space of classical minima for computing correlation
functions involving twisted operators, and show, through a detailed computation
of an orbifold of ${\bf CP}^1$ by the dihedral group $D_{4},$ how to compute
the complete ring of ... | 1992-11-25 | 2009-10-22 | [
"hep-th"
] | Eric Zaslow |
hep-th/9211118 | Low-Energy Dynamics of String Solitons | The dynamics of a class of fivebrane string solitons is considered in the
moduli space approximation. The metric on moduli space is found to be flat.
This implies that at low energies the solitons do not interact, and their
scattering is trivial. The range of validity of the approximation is also
briefly discussed. | 1992-11-25 | 2009-10-22 | [
"hep-th"
] | Andrew G. Felce and T. M. Samols |
hep-th/9211122 | Coset Construction and Character Sumrules for the Doubly Extended $N=4$
Superconformal Algebras | Character sumrules associated with the realization of the $N=4$
superconformal algebra $\At$ on manifolds corresponding to the group cosets
$SU(3)_{\ktp }/U(1)$ are derived and developed as an important tool in
obtaining the modular properties of $\At$ characters as well as information on
certain extensions of that alg... | 1992-11-25 | 2009-10-22 | [
"hep-th"
] | J.L. Petersen and A. Taormina |
hep-th/9211120 | Lift of dilogarithm to partition identities | For the whole set of dilogarithm identities found recently using the
thermodynamic Bethe-Ansatz for the $ADET$ series of purely elastic scattering
theories we give partition identities which involve characters of those
conformal field theories which correspond to the UV-limits of the scattering
theories. These partitio... | 1992-11-25 | 2008-02-03 | [
"hep-th"
] | Michael Terhoeven |
hep-th/9211121 | Topological Twist in Four Dimensions, R-Duality and Hyperinstantons | In this paper we continue the programme of topologically twisting N=2
theories in D=4, focusing on the coupling of vector multiplets to N=2
supergravity. We show that in the minimal case, namely when the special
geometry prepotential F(X) is a quadratic polynomial, the theory has a so far
unknown on shell U(1) symmetry... | 1992-11-25 | 2010-11-02 | [
"hep-th"
] | Damiano Anselmi and Pietro Fre' |
hep-th/9211103 | The Ashtekar Formalism and WKB Wave Functions of N=1,2 Supergravities | The N=1,2 supergravities with non-zero cosmological constants are
investigated in the Ashtekar formalism. We solve the constraints of the N=1,2
supergravities semi-classically. The resulting WKB wave functions are expressed
by exponentials of supersymmetric-extended SL(2,C) Chern-Simons functional. | 1992-11-24 | 2007-05-23 | [
"hep-th"
] | Takashi Sano |
hep-th/9211116 | CPT, Strings, and the $K \bar K$ System | This talk contains a summary of our work on dynamical CPT invariance and
spontaneous CPT violation in string theories, including the possibility that
stringy CPT violation could occur at levels detectable in the next generation
of experiments. In particular, we present here an estimate for values of
parameters for CPT ... | 1992-11-24 | 2007-05-23 | [
"hep-th",
"hep-ph"
] | Alan Kostelecky and Robertus Potting |
hep-th/9211106 | Electromagnetic Interaction of Anyons in Non-Relativistic Quantum Field
Theory | The non-relativistic quantum field theoretic lagrangian which describes an
anyon system in the presence of an electromagnetic field is identified. A
non-minimal magnetic coupling to the Chern-Simons statistical field as well as
to the electromagnetic field together with a direct coupling between between
both fields are... | 1992-11-24 | 2012-03-15 | [
"hep-th"
] | J.L. Cortes, J. Gamboa and L. Velazquez |
hep-th/9211107 | The Effective Action of $W_3$ Gravity to All Orders | The effective action for chiral $W_3$ gravity is studied. It is shown that
the computation of the effective action can be reduced to that of a $SL(3,\re)$
Wess-Zumino-Witten theory. If one assumes that the effective action for the
Wess-Zumino-Witten model is identical to the WZW action up to multiplicative
renormalizat... | 1992-11-24 | 2009-10-22 | [
"hep-th"
] | Jan de Boer and Jacob Goeree |
hep-th/9211115 | Generalising the staircase models | Systems of integral equations are proposed which generalise those previously
encountered in connection with the so-called staircase models. Under the
assumption that these equations describe the finite-size effects of
relativistic field theories via the Thermodynamic Bethe Ansatz, analytical and
numerical evidence is g... | 1992-11-24 | 2009-10-22 | [
"hep-th"
] | Patrick Dorey and Francesco Ravanini |
hep-th/9211104 | The Non-perturbative Canonical Quantization of the N=1 Supergravity | The non-perturbative canonical quantization of the N=1 supergravity with the
non-zero cosmological constant is studied using the Ashtekar formalism. A
semi-classical wave function is obtained and it has the form of the exponential
of the N=1 supersymmetric extension of the Chern-Simons functional. The N=1
supergravity ... | 1992-11-24 | 2010-11-01 | [
"hep-th"
] | Takashi Sano and Jun'ichi Shiraishi |
hep-th/9211099 | Non-Localizability and Asymptotic Commutativity | The mathematical formalism commonly used in treating nonlocal highly singular
interactions is revised. The notion of support cone is introduced which
replaces that of support for nonlocalizable distributions. Such support cones
are proven to exist for distributions defined on the Gelfand-Shilov spaces
$S^\beta$, where ... | 1992-11-24 | 2010-11-01 | [
"hep-th"
] | V. Ya. Fainberg, M. A. Soloviev |
hep-th/9211101 | \delta-expansion and self-consistent calculation | We compare results from $\delta$--expansion, in simple theories, with
self--consistent calculations as well as calculations involving the principle
of minimal sensitivity. We show that the latter methods give relatively more
accurate results order by order. | 1992-11-24 | 2007-05-23 | [
"hep-th",
"hep-ph"
] | Paulo F.Bedaque and Ashok Das |
hep-th/9211102 | Fermionic Quasi-Particle Representations for Characters of ${(G^{(1)})_1
\times (G^{(1)})_1 \o (G^{(1)})_2}$ | We present fermionic quasi-particle sum representations for some of the
characters (or branching functions) of ~${(G^{(1)})_1 \times (G^{(1)})_1 \o
(G^{(1)})_2}$ ~for all simply-laced Lie algebras $G$. For given $G$ the
characters are written as the partition function of a set of rank~$G$ types of
massless quasi-partic... | 1992-11-24 | 2009-10-22 | [
"hep-th"
] | R. Kedem, T.R. Klassen, B.M. McCoy and E. Melzer |
hep-th/9211114 | Boundary K-Matrices for the Six Vertex and the n(2n-1) A_{n-1} Vertex
Models | Boundary conditions compatible with integrability are obtained for two
dimensional models by solving the factorizability equations for the reflection
matrices $K^{\pm}(\theta)$. For the six vertex model the general solution
depending on four arbitrary parameters is found. For the $A_{n-1}$ models all
diagonal solutions... | 1992-11-24 | 2009-10-22 | [
"hep-th"
] | H.J. de Vega and A. Gonz\'alez Ruiz |
hep-th/9211117 | Black Extended Objects, Naked Singularities and P-Branes | We treat the horizons of charged, dilaton black extended objects as quantum
mechanical objects. We show that the S matrix for such an object can be written
in terms of a p-brane-like action. The requirements of unitarity of the S
matrix and positivity of the p-brane tension equivalent severely restrict the
number of sp... | 1992-11-24 | 2010-12-17 | [
"hep-th"
] | B. Harms and Y. Leblanc |
hep-th/9211105 | Cyclic monodromy matrices for sl(n) trigonometric R-matrices | The algebra of monodromy matrices for sl(n) trigonometric R-matrices is
studied. It is shown that a generic finite-dimensional polynomial irreducible
representation of this algebra is equivalent to a tensor product of
L-operators. Cocommutativity of representations is discussed. A special class
of representations - fac... | 1992-11-24 | 2011-07-19 | [
"hep-th",
"math.QA",
"nlin.SI",
"solv-int"
] | Vitaly Tarasov |
hep-th/9211108 | KPZ Analysis for $W_3$ Gravity | Starting from the covariant action for $W_3$ gravity, we discuss the BRST
quantization of $W_3$ gravity. Taking the chiral gauge the BRST charge has a
natural interpretation in terms of the quantum Drinfeld--Sokolov reduction for
$Sl(3,\re)$. Nilpotency of this charge leads to the KPZ formula for $W_3$. In
the conforma... | 1992-11-24 | 2009-10-22 | [
"hep-th"
] | Jan de Boer and Jacob Goeree |
hep-th/9211113 | W-Gravity | The geometric structure of theories with gauge fields of spins two and higher
should involve a higher spin generalisation of Riemannian geometry. Such
geometries are discussed and the case of $W_\infty$-gravity is analysed in
detail. While the gauge group for gravity in $d$ dimensions is the
diffeomorphism group of the... | 1992-11-24 | 2015-06-26 | [
"hep-th"
] | C.M. Hull |
hep-th/9211111 | Quantum Inverse Scattering Method. Selected Topics | Four lectures given at Nankai Institute of Mathematics, Tianjin, China, 5--13
April 1991 present an elementary introduction into the quantum integrable
models aimed for mathematical physicists and mathematicians. The stress is made
on the algebraic aspects of the theory and the problem of determining the
spectrum of qu... | 1992-11-24 | 2015-11-12 | [
"hep-th",
"nlin.SI",
"solv-int"
] | E. K. Sklyanin |
hep-th/9211112 | Free field representation of Toda field theories | We study the following problem: can a classical $sl_n$ Toda field theory be
represented by means of free bosonic oscillators through a Drinfeld--Sokolov
construction? We answer affirmatively in the case of a cylindrical space--time
and for real hyperbolic solutions of the Toda field equations. We establish in
fact a on... | 1992-11-24 | 2015-06-26 | [
"hep-th"
] | E.Aldrovandi, L.Bonora, V.Bonservizi, R.Paunov |
hep-th/9211109 | Representation theory of finite W algebras | In this paper we study the finitely generated algebras underlying $W$
algebras. These so called 'finite $W$ algebras' are constructed as Poisson
reductions of Kirillov Poisson structures on simple Lie algebras. The
inequivalent reductions are labeled by the inequivalent embeddings of $sl_2$
into the simple Lie algebra ... | 1992-11-24 | 2009-10-22 | [
"hep-th"
] | Jan de Boer and Tjark Tjin |
hep-th/9211110 | Low-Energy Effective Action of Superstring Theory | A fundamental task for the heterotic superstring theory is the determination
of the effective action describing the physics of massless string excitations
at low energies. This is necessary for the phenomenological applications of
string theory, in particular for the unification of gauge interactions and for
the gaugin... | 1992-11-24 | 2007-05-23 | [
"hep-th",
"hep-ph"
] | T.R. Taylor |
hep-th/9211098 | The generalized KP hierarchy | We propose one possible generalization of the KP hierarchy, which possesses
multi bi--hamiltonian structures, and can be viewed as several KP hierarchies
coupled together. | 1992-11-23 | 2015-06-26 | [
"hep-th"
] | C.S.Xiong |
hep-th/9211100 | Foundations of Rational Quantum Field Theory, I | We study the connection between Rational Conformal Field Theory (RCFT), $N=2$
massive supersymmetric field theory, and solvable Interaction Round the Face
(IRF) lattice models. Specifically, one identifies the fusion rings with the
chiral rings. The theories so obtained are conjectured, and largely shown, to
be integra... | 1992-11-23 | 2018-11-05 | [
"hep-th"
] | Doron Gepner (Weizmann Institute) |
hep-th/9211097 | On Classification of N=2 Supersymmetric Theories, (e-mail uncorrupted
version) | We find a relation between the spectrum of solitons of massive $N=2$ quantum
field theories in $d=2$ and the scaling dimensions of chiral fields at the
conformal point. The condition that the scaling dimensions be real imposes
restrictions on the soliton numbers and leads to a classification program for
symmetric $N=2$... | 1992-11-23 | 2009-10-22 | [
"hep-th"
] | S. Cecotti and C. Vafa |
hep-th/9211095 | Dilaton Quantum Cosmology in Two Dimensions | We consider a renormalizable two-dimensional model of dilaton gravity coupled
to a set of conformal fields as a toy model for quantum cosmology. We discuss
the cosmological solutions of the model and study the effect of including the
backreaction due to quantum corrections. As a result, when the matter density
is below... | 1992-11-22 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | F.D. Mazzitelli and J.G. Russo |
hep-th/9211094 | Generalized Drinfeld-Sokolov Hierarchies and W-Algebras | We review the construction of Drinfeld-Sokolov type hierarchies and classical
W-algebras in a Hamiltonian symmetry reduction framework. We describe the list
of graded regular elements in the Heisenberg subalgebras of the nontwisted loop
algebra based on $gl_n$ and deal with the associated hierarchies. We exhibit an
$sl... | 1992-11-22 | 2007-05-23 | [
"hep-th"
] | L. Feher |
hep-th/9211092 | Asymptotic Freedom and Dirichlet String Theory, UR-1288, ER-40685-737 | Fixed angle scattering at high energy in a string theory with boundaries
satisfying Dirichlet conditions (Dirichlet strings) in $D=4$ is shown to have
logarithmic dependence on energy, in addition to the power-like behavior known
before. High temperature free energy also depends logarithmically on
temperature. Such a r... | 1992-11-21 | 2007-05-23 | [
"hep-th",
"hep-ph"
] | Zhu Yang |
hep-th/9211096 | On possible generalizations of field--antifield formalism | A generalized version is proposed for the field-antifield formalism. The
antibracket operation is defined in arbitrary field-antifield coordinates. The
antisymplectic definitions are given for first- and second-class constraints.
In the case of second-class constraints the Dirac's antibracket operation is
defined. The ... | 1992-11-21 | 2008-11-26 | [
"hep-th"
] | I. A. Batalin and I. V. Tyutin |
hep-th/9211091 | On the bootstrap structure of Yangian-invariant factorized S-matrices | It is pointed out that the apparent presence of the fusing rule for purely
elastic scattering theories in theories with dynamical Yangian invariance
implies beautiful and hitherto unseen structure in the finite-dimensional
representation theory of Yangians. | 1992-11-20 | 2007-05-23 | [
"hep-th",
"hep-ph"
] | N. J. MacKay |
hep-th/9211090 | Descendants constructed from matter fields in topological
Landau-Ginzburg theories coupled to topological gravity | It is argued that gravitational descendants in Landau-Ginsburg theory coupled
to topological gravity can be constructed from the matter fields only. For
example, $\sigma_1 (\Phi) = V'\int \Phi$. This descendants turn out to be
connected with K.Saito higher residue pairing. Naive computaitions are
corrected with the hel... | 1992-11-20 | 2011-04-20 | [
"hep-th"
] | A.Lossev (ITEP) |
hep-th/9211093 | GLq(N)-Covariant Quantum Algebras and Covariant Differential Calculus | We consider GLq(N)-covariant quantum algebras with generators satisfying
quadratic polynomial relations. We show that, up to some inessential
arbitrariness, there are only two kinds of such quantum algebras, namely, the
algebras with q-deformed commutation and q-deformed anticommutation relations.
The connection with t... | 1992-11-19 | 2010-11-01 | [
"hep-th"
] | A.P.Isaev and P.N.Pyatov |
hep-th/9211088 | Gauge Conditions for the Constrained-WZNW--Toda Reductions | There is a constrained-WZNW--Toda theory for any simple Lie algebra equipped
with an integral gradation. It is explained how the different approaches to
these dynamical systems are related by gauge transformations. Combining Gauss
decompositions in relevent gauges, we unify formulae already derived, and
explictly deter... | 1992-11-19 | 2009-10-22 | [
"hep-th"
] | Jean-Loup Gervais, Lochlainn O'Raifeartaigh, Alexander V. Razumov,
Mikhail V. Saveliev |
hep-th/9211085 | The One Dimensional Matrix Model and String Theory | We discuss the basic features of the double scaling limit of the one
dimensional matrix model and its interpretation as a two dimensional string
theory. Using the collective field theory formulation of the model we show how
the fluctuations of the collective field can be interpreted as the massless
"tachyon" of the two... | 1992-11-19 | 2007-05-23 | [
"hep-th"
] | Sumit R. Das |
hep-th/9211089 | Novel Flows beteen N=2 Landau-Ginzburg Theories: New Directions in
Moduli Space via c=0 Theories | A new method for constructing flows between distinct Landau-Ginzburg theories
at fixed central charge is presented. The essential ingredient of the
construction is an enlarged moduli space obtained by adding theories with zero
central charge. The flows involve only marginal directions hence they can be
applied to trans... | 1992-11-19 | 2007-05-23 | [
"hep-th"
] | Rolf Schimmrigk |
hep-th/9211087 | Exchange Relations for the q-Vertex Operators of $U_q(\widehat{sl2})$ | We consider the q-deformed Knizhnik-Zamolodchikov equation for the two point
function of q-deformed vertex operators of $U_q(sl_2^)$. We give explicitly the
fundamental solutions, the connection matrices and the exchange relations for
the q-vertex operators of spin 1/2 and $j \in {1\over 2}{\bf Z}_{\geq 0}$.
Consequent... | 1992-11-19 | 2017-02-01 | [
"hep-th"
] | Hidetoshi Awata |
hep-th/9211086 | The Renormalization Group for Flag Manifolds | The renormalization group equations for a class of non--relativistic quantum
$\sigma$--models targeted on flag manifolds are given. These models emerge in a
continuum limit of generalized Heisenberg antiferromagnets. The case of the
${SU(3)\over U(1)\times U(1)}$ manifold is studied in greater detail. We show
that at z... | 1992-11-19 | 2015-06-26 | [
"hep-th"
] | S. Randjbar-Daemi and J. Strathdee |
hep-th/9211079 | Matrix Models and 2D Critical String Theory --2D Black Hole by c=1
Matrix Model-- | (Lecture at the workshop "Basic Problems in String Theory", Yukawa Institute
for Theoretical Physics, Kyoto, October 19-21) In this talk, we first review
the possibility of matrix models toward a nonperturbative (critical) string
theory. We then discuss whether the $c=1$ matrix model can describe the black
hole solutio... | 1992-11-18 | 2007-05-23 | [
"hep-th"
] | Tamiaki Yoneya |
hep-th/9211080 | Equivalence of BRST cohomologies for 2-d black hole and c=1 Liouville
theory | We study the relation between the $SL(2,R)/U(1)$ black hole and the $c=1$
Liouville theory. A deformation, which interpolates the BRST operators of both
models, is explicitly constructed. This interpolation is isomorphic, and the
physical spectrum of the black hole is equivalent to that of the $c=1$ model
tensored by a... | 1992-11-18 | 2009-10-22 | [
"hep-th"
] | Hiroshi Ishikawa and Mitsuhiro Kato |
hep-th/9211082 | Two-dimensional dilaton gravity in a unitary gauge | Reduced phase space formulation of CGHS model of 2d dilaton gravity is
studied in en extrinsic time gauge. The corresponding Hamiltonian can be
promoted into a Hermitian operator acting in the physical Hilbert space,
implying a unitary evolution for the system. Consequences for the black hole
physics are discussed. In ... | 1992-11-18 | 2009-01-16 | [
"hep-th",
"gr-qc"
] | A. Mikovic |
hep-th/9211081 | Exact Duality Symmetries in CFT and String Theory | The duality symmetries of WZW and coset models are discussed. The exact
underlying symmetry responsible for semiclassical duality is identified with
the symmetry under affine Weyl transformations. This identification unifies the
treatement of duality symmetries and shows that in the compact and unitary case
they are ex... | 1992-11-18 | 2007-05-23 | [
"hep-th"
] | E. Kiritsis |
hep-th/9211083 | Target Space Description of W-Infinity Symmetry in Coset Models | Various typos corrected | 1992-11-18 | 2009-10-22 | [
"hep-th"
] | I. Bakas and E. Kiritsis |
hep-th/9211084 | New Developments in Open - String Theories | The study of string models including both unoriented closed strings and open
strings presents a number of new features when compared to the standard case of
models of oriented closed strings only. We review some basic features of the
construction of these models, describing in particular how gauge symmetry
breaking can... | 1992-11-18 | 2007-05-23 | [
"hep-th"
] | Gianfranco Pradisi and Augusto Sagnotti |
hep-th/9211077 | Quantum algebras and Lie groups | Lie groups and quantum algebras are connected through their common universal
enveloping algebra. The adjoint action of Lie group on its algebra is naturally
extended to related q-algebra and q-coalgebra. In such a way, quantum structure
can be dealt more or less as the Lie one and we do not need to introduce the
not ea... | 1992-11-17 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Enrico Celeghini |
hep-th/9211078 | Off-shell string physics | Recent advances in non-critical string theory allow a unique continuation,
preserving conformal invariance, of critical Polyakov string amplitudes to
off-shell momenta. These continuations possess unusual, apparently stringy,
characteristics, which are unlikely to be reproduced in a string field theory.
Thus our result... | 1992-11-17 | 2007-05-23 | [
"hep-th"
] | Robert C. Myers and Vipul Periwal |
hep-th/9211075 | Interaction and modular invariance of strings on curved manifolds | We review and present new results for a string moving on an $SU(1,1)$ group
manifold. We discuss two classes of theories which use discrete
representations. For these theories the representations forbidden by unitarity
decouple and, in addition, one can construct modular invariant partition
functions. The partion funct... | 1992-11-17 | 2007-05-23 | [
"hep-th"
] | Stephen Hwang and Patrick Roberts |
hep-th/9211076 | Thermal Green's Functions from Quantum Mechanical Path Integrals | In this paper it is shown how the generating functional for Green's functions
in relativistic quantum field theory and in thermal field theory can be
evaluated in terms of a standard quantum mechanical path integral. With this
calculational approach one avoids the loop-momentum integrals usually
encountered in Feynman ... | 1992-11-17 | 2011-07-19 | [
"hep-th",
"hep-ph"
] | D.G.C. McKeon and A. Rebhan |
hep-th/9211068 | A brief history of hidden quantum symmetries in Conformal Field Theories | We review briefly a stream of ideas concerning the role of quantum groups as
hidden symmetries in conformal field theories, paying particular attention to
the field theoretical representations of quantum groups based on Coulomb gas
methods. An extensive bibliography is also included. | 1992-11-16 | 2007-05-23 | [
"hep-th"
] | Cesar Gomez and German Sierra |
hep-th/9211073 | On Modular Invariant Partition Functions for Tensor Products of
Conformal Field Theories | We give two results concerning the construction of modular invariant
partition functions for conformal field theories constructed by tensoring
together other conformal field theories. First we show how the possible modular
invariants for the tensor product theory are constrained if the allowed modular
invariants of the... | 1992-11-16 | 2009-10-22 | [
"hep-th"
] | Gerald B. Cleaver and David C. Lewellen |
hep-th/9211070 | Self-Dual Yang-Mills and the Hamiltonian Structures of Integrable
Systems | In recent years it has been shown that many, and possibly all, integrable
systems can be obtained by dimensional reduction of self-dual Yang-Mills. I
show how the integrable systems obtained this way naturally inherit
bihamiltonian structure. I also present a simple, gauge-invariant formulation
of the self-dual Yang-Mi... | 1992-11-16 | 2016-09-06 | [
"hep-th"
] | Jeremy Schiff |
hep-th/9211067 | BRST and Anti-BRST Quantization of Topological Yang-Mills Theory | (Withdrawn: This paper turns out incomplete and even misleading. I must
apologize to all of the recipients.) | 1992-11-16 | 2020-01-21 | [
"hep-th"
] | Jae-Suk Park |
hep-th/9211071 | Conformal Symmetry and Universal Properties of Quantum Hall States | The low-lying excitations of a quantum Hall state on a disk geometry are edge
excitations. Their dynamics is governed by a conformal field theory on the
cylinder defined by the disk boundary and the time variable. We give a simple
and detailed derivation of this conformal field theory for integer filling,
starting from... | 1992-11-16 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | A.Cappelli, G.V.Dunne, C.A.Trugenberger and G.R.Zemba |
hep-th/9211072 | New Perspectives on the BRST-algebraic Structure of String Theory | Motivated by the descent equation in string theory, we give a new
interpretation for the action of the symmetry charges on the BRST cohomology in
terms of what we call {\em the Gerstenhaber bracket}. This bracket is
compatible with the graded commutative product in cohomology, and hence gives
rise to a new class of exa... | 1992-11-16 | 2009-10-22 | [
"hep-th"
] | Bong H. Lian and Gregg J. Zuckerman |
hep-th/9211074 | Multivalued Fields on the Complex Plane and Braid Group Statistics | We study in this paper a theory of free anyons associated to free conformal
field theories defined on Riemann surfaces with a discrete and nonabelian group
of authomorphisms. The particles are exchanged according to a nonabelian
statistics, in which the $R-$matrix satisfy a multiparametric generalization of
the usual Y... | 1992-11-16 | 2015-06-26 | [
"hep-th"
] | Franco Ferrari |
hep-th/9211066 | Difference equations for the correlation functions of the eight vertex
model | We propose that the correlation functions of the inhomogeneous eight vertex
model in the anti-ferroelectric regime satisfy a system of difference equations
with respect to the spectral parameters. Solving the simplest difference
equation we obtain the expression for the spontaneous staggered polarization
conjectured by... | 1992-11-16 | 2009-10-22 | [
"hep-th",
"nlin.SI",
"solv-int"
] | M. Jimbo, T. Miwa, A. Nakayashiki |
hep-th/9211069 | Monstrous Moonshine and the uniqueness of the Moonshine module | In this talk we consider the relationship between the conjectured uniqueness
of the Moonshine module of Frenkel, Lepowsky and Meurman and Monstrous
Moonshine, the genus zero property for Thompson series discovered by Conway and
Norton. We discuss some evidence to support the uniqueness of the Moonshine
module by consid... | 1992-11-16 | 2007-05-23 | [
"hep-th"
] | Michael P. Tuite |
hep-th/9211062 | Clifford Algebra Derivation of the Characteristic Hypersurfaces of
Maxwell's Equations | An alternative, pedagogically simpler derivation of the allowed physical wave
fronts of a propagating electromagnetic signal is presented using geometric
algebra. Maxwell's equations can be expressed in a single multivector equation
using 3D Clifford algebra (isomorphic to Pauli algebra spinorial formulation of
electro... | 1992-11-14 | 2007-05-23 | [
"hep-th",
"gr-qc"
] | William M. Pezzaglia |
hep-th/9211063 | Topological Conformal Gravity in Four Dimensions | In this paper, we present a new formulation of topological conformal gravity
in four dimensions. Such a theory was first considered by Witten as a possible
gravitational counterpart of topological Yang-Mills theory, but several
problems left it incomplete. The key in our approach is to realise a theory
which describes ... | 1992-11-14 | 2009-10-22 | [
"hep-th"
] | Malcolm J. Perry and Edward Teo |
hep-th/9211064 | Infinite Tension Strings at D>1 | A matrix model describing surfaces embedded in a Bethe lattice is considered.
From the mean field point of view, it is equivalent to the Kazakov-Migdal
induced gauge theory and therefore, at $N=\infty$ and $d>1$, the latter can be
interpreted as a matrix model for infinite-tension strings. We show that, in
the naive co... | 1992-11-14 | 2009-10-22 | [
"hep-th"
] | D.V. Boulatov |
hep-th/9211061 | Finite sigma models and exact string solutions with Minkowski signature
metric | We consider $2d$ sigma models with a $D=2+N$ - dimensional Minkowski
signature target space metric having a covariantly constant null Killing
vector. These models are UV finite. The $2+N$-dimensional target space metric
can be explicitly determined for a class of supersymmetric sigma models with
$N$-dimensional `transv... | 1992-11-13 | 2009-09-17 | [
"hep-th"
] | A.A. Tseytlin |
hep-th/9211060 | On Macroscopic Energy Gap for $q$-Quantum Mechanical Systems | The q-deformed harmonic oscillator within the framework of the recently
introduced Schwenk-Wess $q$-Heisenberg algebra is considered. It is shown, that
for "physical" values $q\sim1$, the gap between the energy levels decreases
with growing energy. Comparing with the other (real) $q$-deformations of the
harmonic oscill... | 1992-11-13 | 2016-08-14 | [
"hep-th"
] | Ctirad Klim\v{c}\'ik and Eliza Klim\v{c}\'ik |
hep-th/9211059 | A tour through N=2 strings | I give an overview of open, closed and heterotic N=2 strings. At the tree
level I derive the effective field theories of all the strings, and discuss the
group theory of the N=2 open string and the interaction between its open and
closed sectors. At one loop N=2 string loop amplitudes and partition functions
have incur... | 1992-11-13 | 2008-02-03 | [
"hep-th"
] | Neil Marcus (U of Tel-Aviv) |
hep-th/9211058 | The Phase Structure of Strings with Extrinsic Curvature | We examine a model of non-self-avoiding, fluctuating surfaces as a candidate
continuum string theory of surfaces in three dimensions. This model describes
Dynamically Triangulated Random Surfaces embedded in three dimensions with an
extrinsic curvature dependent action. We analyze, using Monte Carlo
simulations, the dr... | 1992-11-12 | 2007-05-23 | [
"hep-th"
] | Mark Bowick, Paul Coddington, Leping Han, Geoff Harris and Enzo
Marinari |
hep-th/9211057 | Black hole formation in $c=1$ String Field Theory | A suggestion on how black holes may appear in Das-Jevicki Collective field
theory is given. We study the behaviour of a `test' particle when energy is
sent into the system. A perturbation moving near the potential barrier can
create a large-distance black hole geometry where the seeming curvature
singularity is at the ... | 1992-11-12 | 2009-10-22 | [
"hep-th"
] | J. Russo |
hep-th/9211056 | Magnetic Monopoles in String Theory | Magnetic monopole solutions to heterotic string theory are discussed in
toroidal compactifications to four spacetime dimensions. Particular emphasis is
placed on the relation to previously studied fivebrane solutions in ten
dimensions and on the possibility of constructing exact monopole solutions
related to symmetric ... | 1992-11-12 | 2010-11-01 | [
"hep-th"
] | Jerome P. Gauntlett, Jeffrey A. Harvey and James T. Liu |
hep-th/9211054 | Canonical Quantization of Non-Einsteinian Gravity and the Problem of
Time | For a 1+1 dimensional theory of gravity with torsion different approaches to
the formulation of a quantum theory are presented. They are shown to lead to
the same finite dimensional quantum system. Conceptual questions of quantum
gravity like e.g.\ the problem of time are discussed in this framework. | 1992-11-12 | 2010-04-06 | [
"hep-th"
] | Peter Schaller and Thomas Strobl |
hep-th/9211055 | Dynamics of the conformal factor in 4D gravity | We argue that 4D gravity is drastically modified at distances larger than the
horizon scale, due to the large infrared quantum fluctuations of the conformal
part of the metric. The infrared dynamics of the conformal factor is generated
by an effective action, induced by the trace anomaly of matter in curved space,
anal... | 1992-11-12 | 2007-05-23 | [
"hep-th",
"gr-qc"
] | I. Antoniadis |
hep-th/9211052 | Multivalued Fields on the Complex Plane and Conformal Field Theories | In this paper a class of conformal field theories with nonabelian and
discrete group of symmetry is investigated. These theories are realized in
terms of free scalar fields starting from the simple $b-c$ systems and scalar
fields on algebraic curves. The Knizhnik-Zamolodchikov equations for the
conformal blocks can be ... | 1992-11-11 | 2009-10-22 | [
"hep-th"
] | Franco Ferrari |
hep-th/9211050 | Some General Problems in Quantum Gravity II: The Three Dimensional Case | The general problems of three-dimensional quantum gravity are recatitulated
here, putting the emphasis on the mathematical problems of defining the measure
of the path integral over all three-dimensional metrics.This work should be
viewed as an extension of a preceding one on the four dimensional case
(\cite{kn:eav5}),... | 1992-11-11 | 2009-10-22 | [
"hep-th"
] | Enrique Alvarez |
hep-th/9211048 | Rigorous Analysis of Renormalization Group Pathologies in the 4-State
Clock Model | We perform an exact renormalization-group analysis of one-dimensional 4-state
clock models with complex interactions. Our aim is to provide a simple explicit
illustration of the behavior of the renormalization-group flow in a system
exhibiting a rich phase diagram. In particular we study the flow in the
vicinity of pha... | 1992-11-11 | 2009-10-22 | [
"hep-th",
"hep-lat"
] | M. Asorey, J.G. Esteve, R. Fernandez J. Salas |
hep-th/9211065 | Minimal deformations of the commutative algebra and the linear group
GL(n) | We consider the relations of generalized commutativity in the algebra of
formal series $ M_q (x^i ) $, which conserve a tensor $ I_q $-grading and
depend on parameters $ q(i,k) $ . We choose the $ I_q $-preserving version of
differential calculus on $ M_q$ . A new construction of the symmetrized tensor
product for $ M_... | 1992-11-11 | 2009-10-22 | [
"hep-th",
"math.QA"
] | B. M. Zupnik |
hep-th/9211047 | All Abelian Symmetries of Landau-Ginzburg Potentials | We present an algorithm for determining all inequivalent abelian symmetries
of non-degenerate quasi-homogeneous polynomials and apply it to the recently
constructed complete set of Landau--Ginzburg potentials for $N=2$
superconformal field theories with $c=9$. A complete calculation of the
resulting orbifolds without t... | 1992-11-11 | 2009-10-22 | [
"hep-th"
] | Maximilian Kreuzer and Harald Skarke |
hep-th/9211053 | Form Factors for Integrable Lagrangian Field Theories, the Sinh-Gordon
Model | Using Watson's and the recursive equations satisfied by matrix elements of
local operators in two-dimensional integrable models, we compute the form
factors of the elementary field $\phi(x)$ and the stress-energy tensor
$T_{\mu\nu}(x)$ of Sinh-Gordon theory. Form factors of operators with higher
spin or with different ... | 1992-11-11 | 2009-10-22 | [
"hep-th"
] | A. Fring, G. Mussardo, P. Simonetti |
hep-th/9211051 | Physical States in the $W_3$ String | We present a review of some of the recent developments in the study of the
$W_3$ string. One of the interesting features of the theory is that the
physical spectrum includes states with non-standard ghost structure, such as
excitations of the ghost fields, both for discrete-momentum and
continuous-momentum states. (Con... | 1992-11-11 | 2007-05-23 | [
"hep-th"
] | C.N. Pope |
hep-th/9211049 | Semiclassical Tunneling in 1+1 Dimensional String Theory | We describe time-dependent tunneling of massless particles in 1+1 dimensional
string field theory. Polchinski's description of the classical solutions in
terms of the Fermi sea is used to identify the leading instanton contribution
connecting the two half-lines. The field theory lagrangian is proportional to
$1/g^2$, w... | 1992-11-11 | 2009-10-22 | [
"hep-th"
] | Julian Lee and Paul F. Mende |
hep-th/9211042 | Self--Dual Supergravity and Supersymmetric Yang--Mills Coupled to
Green--Schwarz Superstring | We present the {\it canonical} set of superspace constraints for self-dual
supergravity, a ``self-dual'' tensor multiplet and a self-dual Yang-Mills
multiplet with $~N=1~$ supersymmetry in the space-time with signature
$(+,+,-,-)$. For this set of constraints, the consistency of the self-duality
conditions on these mul... | 1992-11-10 | 2009-10-22 | [
"hep-th"
] | H. Nishino |
hep-th/9211043 | The Canonical Quantization in Terms of Quantum Group and Yang-Baxter
Equation | In this paper it is shown that a quantum observable algebra, the
Heisenberg-Weyl algebra, is just given as the Hopf algebraic dual to the
classical observable algebra over classical phase space and the Plank constant
is included in this scheme of quantization as a compatible parameter living in
the quantum double theor... | 1992-11-10 | 2007-05-23 | [
"hep-th"
] | Chang-Pu Sun |
hep-th/9211045 | Free and Interacting 2-D Maxwell Field Theory on Conformally Flat Space
Times | The free Maxwell field theory is quantized in the Lorentz gauge on a two
dimensional manifold $M$ with conformally flat background metric. It is shown
that in this gauge the theory is equivalent, at least at the classical level,
to a biharmonic version of the bosonic string theory. This equivalence is
exploited in orde... | 1992-11-10 | 2010-04-06 | [
"hep-th"
] | F.Ferrari |
hep-th/9211044 | Quantum Rolling Down out of Equilibrium | In a scalar field theory, when the tree level potential admits broken
symmetry ground states, the quantum corrections to the static effective
potential are complex. (The imaginary part is a consequence of an instability
towards phase separation and the static effective potential is not a relevant
quantity for understan... | 1992-11-10 | 2009-10-22 | [
"hep-th"
] | D. Boyanovsky and H. J. de Vega |
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