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/9303041 | Observing 4D Baby Universes in Quantum Gravity | We measure the fractal structure of four dimensional simplicial quantum
gravity by identifying so-called baby universes. This allows an easy
determination of the critical exponent $\g$ connected to the entropy of
four-dimensional manifolds. | 1993-03-08 | 2009-10-22 | [
"hep-th",
"gr-qc",
"hep-lat"
] | J. Ambjorn, S. Jain, J. Jurkiewicz and C.F. Kristjansen |
hep-th/9303043 | Thermodynamics of Integrable Chains with Alternating Spins | We consider a two-parameter $(\bar c, \tilde c)$ family of quantum integrable
Hamiltonians for a chain of alternating spins of spin $s=1/2$ and $s=1$. We
determine the thermodynamics for low-temperature $T$ and small external
magnetic field $H$, with $T << H$. In the antiferromagnetic $(\bar c > 0,
\tilde c > 0)$ case,... | 1993-03-08 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | H.J. de Vega, Luca Mezincescu and Rafael I. Nepomechie |
hep-th/9303042 | 4D Quantum Gravity Coupled to Matter | We investigate the phase structure of four-dimensional quantum gravity
coupled to Ising spins or Gaussian scalar fields by means of numerical
simulations.
The quantum gravity part is modelled by the summation over random simplicial
manifolds, and the matter fields are located in the center of the 4-simplices,
which c... | 1993-03-08 | 2009-10-22 | [
"hep-th",
"gr-qc",
"hep-lat"
] | J. Ambjorn, Z. Burda, J. Jurkiewicz and C.F. Kristjansen |
hep-th/9303044 | Systematic Differential Renormalization to All Orders | We present a systematic implementation of differential renormalization to all
orders in perturbation theory. The method is applied to individual Feynamn
graphs written in coordinate space. After isolating every singularity. which
appears in a bare diagram, we define a subtraction procedure which consists in
replacing t... | 1993-03-08 | 2019-08-17 | [
"hep-th"
] | J.I. Latorre, C. Manuel and X. Vilasis-Cardona |
hep-th/9303045 | W-infinity structure of the $sl(N)$ conformal affine Toda theories | We reexamine the $W_{\infty}$ symmetry of the $sl(N)$ Conformal Affine Toda
theories. It is shown that it is possible to reduce (nonuniquely) the zero
curvature equation to a Lax equation for a first order pseudodifferential
oprator, whose coefficients are the generators of the $W_{\infty}$ algebra.
This clarifies the ... | 1993-03-08 | 2009-10-22 | [
"hep-th",
"nlin.SI",
"solv-int"
] | R. Paunov |
hep-th/9303046 | Twists and Wilson Loops in the String Theory of Two Dimensional QCD | Many Texo's have been corrected and a reference added. | 1993-03-08 | 2008-11-26 | [
"hep-th",
"hep-ph"
] | David J. Gross and Washington Taylor |
hep-th/9303040 | Model-Independent Analysis of Soft Terms in Effective Supergravity and
in String Theory | We discuss supersymmetry breakdown in effective supergravities such as emerge
in the low-energy limit of superstring theory. Without specifying the precise
trigger of the breakdown, we analyse the soft parameters in the Lagrangian of
the supersymmetrized Standard Model. | 1993-03-08 | 2010-02-18 | [
"hep-th",
"hep-ph"
] | Vadim Kaplunovsky and Jan Louis |
hep-th/9303037 | Group actions and deformations for harmonic maps | We obtain some new results on classical solutions of two dimensional
Euclidean sigma models. From earlier work of Din-Zakrzewski, Glaser-Stora, and
numerous differential geometers, one knows explicit solutions in the case of
the $S^n$-model, the $CP^n$-model, and the $U(n)$-model. However, very little
is known about th... | 1993-03-05 | 2008-02-03 | [
"hep-th",
"math.DG"
] | M. A. Guest and Y. Ohnita |
hep-th/9303034 | Diffeomorphisms from higher dimensional W-algebras | Classical W-algebras in higher dimensions have been recently constructed. In
this letter we show that there is a finitely generated subalgebra which is
isomorphic to the algebra of local diffeomorphisms in D dimensions. Moreover,
there is a tower of infinitely many fields transforming under this subalgebra
as symmetric... | 1993-03-05 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Fernando Martinez Moras, Javier Mas and Eduardo Ramos |
hep-th/9303036 | On the fundamental group of the space of harmonic $2$-spheres in the
$n$-sphere | We compute the fundamental group of the "moduli space" of classical solutions
of the two dimensional Euclidean $S^n$-model. | 1993-03-05 | 2008-02-03 | [
"hep-th",
"math.DG"
] | M. Furuta, M. A. Guest, M. Kotani, Y. Ohnita |
hep-th/9303035 | Quantum-double for a nonstandard deformation of a Borel subalgebra
$sl(2,C)$ | We give a construction of Drienfeld's quantum double for a nonstandard
deformation of Borel subalgebra of $sl(2)$. We construct explicitly some simple
representations of this quantum algebra and from the universal R-matrix we
obtain the explicit solutions of the Yang-Baxter equation in those cases. | 1993-03-05 | 2008-02-03 | [
"hep-th",
"math.QA"
] | C. Burdik and P. Hellinger |
hep-th/9303039 | Division Algebras, (1,9)-Space-Time, Matter-Antimatter Mixing | The tensor product of the division algebras, which is a kernel for the
structure of the Standard Model, is also a root for the Clifford algebra of
(1,9)-space-time. A conventional Dirac Lagrangian, employing the (1,9)-Dirac
operator acting on the Standard Model hyperfield, gives rise to matter into
antimatter transitio... | 1993-03-05 | 2007-05-23 | [
"hep-th"
] | Geoffrey Dixon |
hep-th/9303031 | Is Induced QCD really QCD? The preservation of asymptotic freedom by
matter interactions | The program of induced QCD requires that there exist self-interactions among
the heavy matter fields (an adjoint scalar and a few fermions in the
fundamental representation) which tend to spoil the asymptotic freedom of SU(N)
gauge theory. We consider general interactions between such matter fields and
show that, on th... | 1993-03-04 | 2009-10-22 | [
"hep-th"
] | J.M. Cline and S. Paban |
hep-th/9303033 | Self-Dual Supersymmetric Yang-Mills Theory Generates Witten's
Topological Field Theory | {}~~~We show that the recently constructed $~N=4$~ supersymmetric self-dual
Yang-Mills theory as the consistent background of \hbox{$~N=2$} open
superstring will generate Witten's topological field theory in two-dimensions
as a descendant theory after appropriate twisted dimensional
reduction/truncations. We also show ... | 1993-03-04 | 2009-10-22 | [
"hep-th"
] | H. Nishino |
hep-th/9303022 | SU(2)-Effective Action Wiht the Nonanalytic Term | The nonanalytic $g^3$-term is calculated for SU(2)-effective action at finite
temperature and the status of a gauge fields condensation is briefly discussed. | 1993-03-04 | 2007-05-23 | [
"hep-th"
] | O.K.Kalashnikov |
hep-th/9303029 | Dirty black holes: Entropy versus area | Considerable interest has recently been expressed in the entropy versus area
relationship for ``dirty'' black holes --- black holes in interaction with
various classical matter fields, distorted by higher derivative gravity, or
infested with various forms of quantum hair. In many cases it is found that the
entropy is s... | 1993-03-04 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Matt Visser |
hep-th/9303026 | Degenerations of Sklyanin algebra and Askey-Wilson polynomials | A new trigonometric degeneration of the Sklyanin algebra is found and the
functional realization of its representations in space of polynomials in one
variable is studied. A further contraction gives the standard quantum algebra
$U_{q}(sl(2))$. It is shown that the degenerate Sklyanin algebra contains a
subalgebra isom... | 1993-03-04 | 2009-10-22 | [
"hep-th",
"math.QA"
] | A. S. Gorsky, A. V. Zabrodin |
hep-th/9303028 | The trace of the heat kernel on a compact hyperbolic 3-orbifold | The heat coefficients related to the Laplace-Beltrami operator defined on the
hyperbolic compact manifold $H^3/\Ga$ are evaluated in the case in which the
discrete group $\Ga$ contains elliptic and hyperbolic elements. It is shown
that while hyperbolic elements give only exponentially vanishing corrections to
the trace... | 1993-03-04 | 2010-11-01 | [
"hep-th",
"math.DG"
] | Guido Cognola and Luciano Vanzo |
hep-th/9303030 | Large N Limit in the Quantum Hall Effect | The Laughlin states for $N$ interacting electrons at the plateaus of the
fractional Hall effect are studied in the thermodynamic limit of large $N$. It
is shown that this limit leads to the semiclassical regime for these states,
thereby relating their stability to their semiclassical nature. The equivalent
problem of t... | 1993-03-04 | 2010-11-01 | [
"hep-th",
"cond-mat"
] | A. Cappelli, C. A. Trugenberger and G. R. Zemba |
hep-th/9303027 | Schwinger-Dyson BRST-Symmetry and the Equivalence of Hamiltonian and
Lagrangian Quantistion | Implementing the requirement that a field theory be invariant under
Schwinger-Dyson BRST symmetry in the Hamiltonian formalism, we show the
equivalence between Hamiltonian and Lagrangian BRST-formalism at the path
integral level. The Lagrangian quantum master equation is derived as a direct
consequence of the Fradkin-V... | 1993-03-04 | 2009-10-22 | [
"hep-th"
] | Frank De Jonghe |
hep-th/9303032 | $O(\tilde d,\tilde d)$ Transformations and 3D Black Hole | We generalize the results of a previous paper by one of the authors to show a
relationship among a class of string solutions through $O(\tilde d, \tilde d)$
transformations. The results are applied to a rotating black hole solution of
three dimensional general relativity discussed recently. We extend the black
hole sol... | 1993-03-04 | 2010-11-01 | [
"hep-th"
] | Abbas Ali and Alok Kumar |
hep-th/9303021 | Gauge Fields Condensation at Finite Temperature | The two-loop effective action for the SU(3) gauge model in a constant
background field ${\bar A}_0(x,t)=B_0^3T_3+B_0^8T_8$ is recalculated for a
gauge with an arbitrary $\xi$-parameter. The gauge-invariant thermodynamical
potential is found and its extremum points are investigated. Within a two-loop
order we find that ... | 1993-03-04 | 2009-10-22 | [
"hep-th"
] | O.K.Kalashnikov |
hep-th/9303038 | Symplectic structures associated to Lie-Poisson groups | The Lie-Poisson analogues of the cotangent bundle and coadjoint orbits of a
Lie group are considered. For the natural Poisson brackets the symplectic
leaves in these manifolds are classified and the corresponding symplectic forms
are described. Thus the construction of the Kirillov symplectic form is
generalized for Li... | 1993-03-04 | 2009-10-22 | [
"hep-th",
"math.SG"
] | A. Yu. Alekseev, A. Z. Malkin |
hep-th/9303020 | van Vleck determinants: geodesic focussing and defocussing in Lorentzian
spacetimes | The van Vleck determinant is an ubiquitous object, arising in many physically
interesting situations such as: (1) WKB approximations to quantum time
evolution operators and Green functions. (2) Adiabatic approximations to heat
kernels. (3) One loop approximations to functional integrals. (4) The theory of
caustics in g... | 1993-03-03 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Matt Visser |
hep-th/9303018 | Representations of affine Lie algebras, elliptic r-matrix systems, and
special functions | There were some errors in paper hep-th/9303018 in formulas 6.1, 6.6, 6.8,
6.11. These errors have been corrected in the present version of this paper.
There are also some minor changes in the introduction. | 1993-03-03 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Pavel Etingof (Department of Mathematics, Yale University) |
hep-th/9303017 | Threshold Corrections to Gauge Couplings in Orbifold Compactifications | We derive the moduli dependent threshold corrections to gauge couplings in
toroidal orbifold compactifications. The underlying six dimensional torus
lattice of the heterotic string theory is not assumed ---as in previous
calculations--- to decompose into a direct sum of a four--dimensional and a
two--dimensional sublat... | 1993-03-03 | 2010-11-01 | [
"hep-th"
] | P. Mayr and S. Stieberger |
hep-th/9303024 | Effects of friction on cosmic strings | We study the evolution of cosmic strings taking into account the frictional
force due to the surrounding radiation. We consider small perturbations on
straight strings, oscillation of circular loops and small perturbations on
circular loops. For straight strings, friction exponentially suppresses
perturbations whose co... | 1993-03-03 | 2009-10-22 | [
"hep-th",
"hep-ph"
] | J. Garriga and M. Sakellariadou |
hep-th/9303019 | Integrable Conformal Field Theory in Four Dimensions and Fourth-Rank
Geometry | We consider the conformal properties of geometries described by higher-rank
line elements. A crucial role is played by the conformal Killing equation
(CKE). We introduce the concept of null-flat spaces in which the line element
can be written as ${ds}^r=r!d\zeta_1\cdots d\zeta_r$. We then show that, for
null-flat space... | 1993-03-03 | 2009-10-22 | [
"hep-th"
] | Victor Tapia |
hep-th/9303025 | A New Sigma Model Action for the Four-Dimensional Green-Schwarz
Heterotic Superstring | The sigma model action described in this paper differs in four important
features from the usual sigma model action for the four-dimensional
Green-Schwarz heterotic superstring in a massless background. Firstly, the
action is constructed on an N=(2,0) super-worldsheet using a Kahler potential
and an Ogievetsky-Sokatche... | 1993-03-03 | 2011-07-19 | [
"hep-th"
] | Nathan Berkovits |
hep-th/9303014 | Exact Operator Quantization of a Model of Two-Dimensional Dilaton
Gravity | Exact operator quantization is perfomed of a model of two-dimensional dilaton
gravity in Lorentzian spacetime, classically equivalent to the one proposed by
Callan, Giddings, Harvey and Strominger, in the special case with 24 massless
matter scalars. This is accomplished by developing a non-linear and non-local
quantum... | 1993-03-03 | 2016-09-06 | [
"hep-th"
] | S. Hirano, Y. Kazama and Y. Satoh |
hep-th/9303015 | Where are the Mirror Manifolds? | The recent classification of Landau--Ginzburg potentials and their abelian
symmetries focuses attention on a number of models with large positive Euler
number for which no mirror partner is known. All of these models are related to
Calabi--Yau manifolds in weighted $\IP_4$, with a characteristic structure of
the defini... | 1993-03-03 | 2009-10-22 | [
"hep-th"
] | Maximilian Kreuzer |
hep-th/9303016 | Axial Vector Duality as a Gauge Symmetry and Topology Change in String
Theory | Lines generated by marginal deformations of WZW models are considered. The
Weyl symmetry at the WZW point implies the existence of a duality symmetry on
such lines. The duality is interpreted as a broken gauge symmetry in string
theory. It is shown that at the two end points the axial and vector cosets are
obtained. Th... | 1993-03-03 | 2009-10-22 | [
"hep-th"
] | A. Giveon and E. Kiritsis |
hep-th/9303023 | Hawking's chronology protection conjecture: singularity structure of the
quantum stress--energy tensor | The recent renaissance of wormhole physics has led to a very disturbing
observation: If traversable wormholes exist then it appears to be rather easy
to to transform such wormholes into time machines. This extremely disturbing
state of affairs has lead Hawking to promulgate his chronology protection
conjecture. This pa... | 1993-03-03 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Matt Visser |
hep-th/9303010 | Dynamical Realizability for Quantum Measurement and Factorization of
Evolution Operator | By building a general dynamical model for quantum measurement process,it is
shown that the factorization of reduced evolution operator sufficiently results
in the quantum mechanical realization of the wave packet collapse and the state
correlation between the measured system and the measuring
instrument-detector.This r... | 1993-03-02 | 2007-05-23 | [
"hep-th"
] | Chang_Pu Sun |
hep-th/9303008 | Correlation functions of quantum q-oscillators | Nonlinearity of electromagnetic field vibrations described by q-oscillators
is shown to produce essential dependence of second correlation functions on
intensity and deformation of Planck distribution. Experimental tests of such
nonlinearity are suggested. | 1993-03-02 | 2009-10-22 | [
"hep-th"
] | V.I.Man'ko, G.Marmo, S.Solimeno, F. Zaccaria |
hep-th/9303006 | Quantum $R^2$ Gravity in Two Dimensions | Two-dimensional quantum gravity with an $R^2$ term is investigated in the
continuum framework. It is shown that the partition function for small area $A$
is highly suppressed by an exponential factor $exp \{ -2\pi (1-h)^2/(m^2A) \}$,
where $1/m^2$ is the coefficient (times $32\pi$) of $R^2$ and $h$ is the genus
of the ... | 1993-03-02 | 2009-10-22 | [
"hep-th"
] | Hikaru Kawai and Ryuichi Nakayama |
hep-th/9303007 | Miens of The Three Dimensional Black Hole | Some aspects of the rotating three-dimensional Einstein-Anti-de-Sitter black
hole solution, constructed recently by Banados, Teitelboim and Zanelli are
discussed. It is shown explicitly that this black hole represents the most
general black hole type solution of the Einstein-Anti-de-Sitter theory. The
interpretation of... | 1993-03-02 | 2008-11-26 | [
"hep-th",
"gr-qc"
] | N. Kaloper |
hep-th/9303013 | Quasi-Particles, Conformal Field Theory, and $q$-Series | We review recent results concerning the representation of conformal field
theory characters in terms of fermionic quasi-particle excitations, and
describe in detail their construction in the case of the integrable three-state
Potts chain. These fermionic representations are $q$-series which are
generalizations of the s... | 1993-03-02 | 2014-11-18 | [
"hep-th",
"cond-mat"
] | S. Dasmahapatra, R. Kedem, T.R. Klassen, B.M. McCoy and E. Melzer |
hep-th/9303011 | Is it possible to recover information from the black-hole radiation? | In the framework of communication theory, we analyse the gedanken experiment
in which beams of quanta bearing information are flashed towards a black hole.
We show that stimulated emission at the horizon provides a correlation between
incoming and outgoing radiations consisting of bosons. For fermions, the
mechanism re... | 1993-03-02 | 2009-10-22 | [
"hep-th"
] | M. Schiffer |
hep-th/9303012 | Spectral Density of the QCD Dirac Operator near Zero Virtuality | We investigate the spectral properties of a random matrix model, which in the
large $N$ limit, embodies the essentials of the QCD partition function at low
energy. The exact spectral density and its pair correlation function are
derived for an arbitrary number of flavors and zero topological charge. Their
microscopic l... | 1993-03-02 | 2009-10-22 | [
"hep-th"
] | J.J.M. Verbaarschot and I. Zahed |
hep-th/9303009 | Algebraic Aspects of Orbifold Models | : Algebraic properties of orbifold models on arbitrary Riemann surfaces are
investigated. The action of mapping class group transformations and of standard
geometric operations is given explicitly. An infinite dimensional extension of
the quantum group is presented. | 1993-03-02 | 2015-06-26 | [
"hep-th"
] | Peter Bantay |
hep-th/9303005 | Higher-Derivative Supersymmetry and the Witten Index | Higher-derivative generalization of the supersymmetric quantum mechanics is
proposed. It is formally based on the standard superalgebra but supercharges
involve differential operators of the order $n$. As a result, their
anticommutator entails polynomial of a Hamiltonian. The Witten index does not
characterize spontane... | 1993-03-01 | 2009-10-22 | [
"hep-th"
] | A.A.Andrianov, M.V.Ioffe, and V.P.Spiridonov |
hep-th/9303004 | Symmetries of the Self-Similar Potentials | An application of the particular type of nonlinear operator algebras to
spectral problems is outlined. These algebras are associated with a set of
one-dimensional self-similar potentials, arising due to the q-periodic closure
f_{j+N}(x)=qf_j(qx), k_{j+N}=q^2 k_j of a chain of coupled Riccati equations
(dressing chain).... | 1993-03-01 | 2011-03-02 | [
"hep-th"
] | V.Spiridonov |
hep-th/9303001 | Propagation of perturbations along strings | A covariant formalism for physical perturbations propagating along a string
in an arbitrary curved spacetime is developed. In the case of a stationary
string in a static background the propagation of the perturbations is described
by a wave-equation with a potential consisting of 2 terms: The first term
describing the ... | 1993-03-01 | 2009-10-22 | [
"hep-th"
] | Arne L. Larsen and Valery P. Frolov |
hep-th/9303002 | Super Black Holes | A quantum version of 2D super dilaton gravity containing a black hole is
constructed for $N>8$. A previous disagreement as to whether this is possible
or not is resolved. | 1993-03-01 | 2009-10-22 | [
"hep-th"
] | Ulf H. Danielsson |
hep-th/9303003 | Consistency and Phenomenology of Four-Dimensional Strings | Talk given at the 26th Workshop: ``From Superstrings to Supergravity" Erice -
Sicily, 5-12 December 1992: In this talk we discuss string consistency
requirements on four dimensional string models, namely the cancellation of
target space duality anomalies. The analysis is explicitly performed for
(hypothetical) orbifold... | 1993-03-01 | 2007-05-23 | [
"hep-th",
"hep-ph"
] | Dieter Luest |
hep-th/9302143 | Chiral Rings in Topological (W-)Gravity | Talk given at the 26th Workshop: ``From Superstrings to Supergravity", Erice
- Sicily, 5-12 December 1992. We review the superconformal properties of 2d
matter coupled to gravity, and extensions thereof. Focusing on topological
strings, we recall how the superconformal structure helps to provide a direct
link between L... | 1993-02-28 | 2007-05-23 | [
"hep-th"
] | W. Lerche |
hep-th/9302144 | Two Dimensional Quantum Dilaton Gravity and the Positivity of Energy | Using an argument due to Regge and Teitelboim, an expression for the ADM mass
of 2d quantum dilaton gravity is obtained. By evaluating this expression we
establish that the quantum theories which can be written as a Liouville-like
theory, have a lower bound to energy, provided there is no critical boundary.
This fact i... | 1993-02-28 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | S. P. de Alwis |
hep-th/9302142 | Wave Functional of Quantum Black Holes in Two Dimensions | The wheeler-DeWitt method is applied to the quantization of the 1 + 1
dimensional dilaton gravity coupled with the conformal matter fields. Exact
solutions to the WD equations are found, which are interpreted as
right(left)-moving black holes. | 1993-02-28 | 2007-05-23 | [
"hep-th"
] | Takayuki Hori and Masaru Kamata |
hep-th/9302140 | Exact solution of the deformed biquadratic spin 1 hamiltonian | Remarks about highest weight states of the underlying quantum group are
corrected. | 1993-02-27 | 2009-10-22 | [
"hep-th"
] | R. Koberle and A. Lima - Santos |
hep-th/9302141 | A characterization of the differential in semi-infinite cohomology | Semi-infinite cohomology is constructed from scratch as the proper
generalization of finite dimensional Lie algebra cohomology. The differential d
and other operators are realized as universal inner deri- vations of a
completed algebra, which acts on any appropriate semi-infinite complex. In
particular, d is shown to b... | 1993-02-27 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Fusun Akman |
hep-th/9302134 | Solitons in Two--Dimensional Topological Field Theories | We consider a class of $N=2$ supersymmetric non--unitary theories in
two--dimensional Minkowski spacetime which admit classical solitonic solutions.
We show how these models can be twisted into a topological sector whose
energy--momentum tensor is a BRST commutator. There is an infinite number of
degrees of freedom ass... | 1993-02-26 | 2009-10-22 | [
"hep-th"
] | S. Penati, M. Pernici and D. Zanon |
hep-th/9302139 | The quantum bialgebra associated with the eight-vertex R-matrix | The quantum bialgebra related to the Baxter's eight-vertex R-matrix is found
as a quantum deformation of the Lie algebra of sl(2)-valued automorphic
functions on a complex torus. | 1993-02-26 | 2009-10-22 | [
"hep-th",
"math.QA"
] | D. B. Uglov |
hep-th/9302130 | Canonical treatment of two dimensional gravity as an anomalous gauge
theory | The extended phase space method of Batalin, Fradkin and Vilkovisky is applied
to formulate two dimensional gravity in a general class of gauges. A BRST
formulation of the light-cone gauge is presented to reveal the relationship
between the BRST symmetry and the origin of $SL(2,R)$ current algebra. From the
same princip... | 1993-02-26 | 2015-06-26 | [
"hep-th"
] | T. Fujiwara, T. Tabei, Y. Igarashi, K. Maeda and J. Kubo |
hep-th/9302126 | Exact Three Dimensional Black Holes in String Theory | A black hole solution to three dimensional general relativity with a negative
cosmological constant has recently been found. We show that a slight
modification of this solution yields an exact solution to string theory. This
black hole is equivalent (under duality) to the previously discussed three
dimensional black st... | 1993-02-26 | 2010-11-01 | [
"hep-th",
"gr-qc"
] | Gary T. Horowitz and Dean L. Welch |
hep-th/9302131 | Natural Generalization of Bosonic String Amplitudes | The similarity between tree-level string theory scalar amplitudes, the
Koba-Nielsen form ($S^{1}$) and the Virasoro-Shapiro form ($S^{2}$) suggests a
natural $S^{n}$ generalization for a scalar amplitude. It is shown that the
$S^{n}$ amplitude shares many essential properties of the string theory
amplitudes, including ... | 1993-02-26 | 2008-02-03 | [
"hep-th"
] | Makoto Natsuume |
hep-th/9302127 | Quantum Black Holes | Clarified certain points and related it to other work. | 1993-02-26 | 2008-02-03 | [
"hep-th"
] | Juan Garcia-Bellido |
hep-th/9302137 | Harmonic BRST Quantization of Systems with Irreducible Holomorphic Boson
and Fermion Constraints | We show that the harmonic Becchi-Rouet-Stora-Tyutin method of quantizing
bosonic systems with second-class constraints or first-class holomorphic
constraints extends to systems having both bosonic and fermionic second-class
or first-class holomorphic constraints. Using a limit argument, we show that
the harmonic BRST m... | 1993-02-26 | 2013-11-13 | [
"hep-th"
] | Theodore J. Allen and Dennis B. Crossley |
hep-th/9302135 | Subdivision Invariant Models in Lattice Gauge Theory | A class of lattice gauge theories is presented which exhibits novel
topological properties. The construction is in terms of compact Wilson
variables defined on a simplicial complex which models a four dimensional
manifold with boundary. The case of Z2 and Z3 gauge groups is considered in
detail, and we prove that at ce... | 1993-02-26 | 2007-05-23 | [
"hep-th",
"hep-lat"
] | D. Birmingham and M. Rakowski |
hep-th/9302132 | Unrecognizable Black Holes in Two Dimensions | The classical 2D cosmological model of Callan, Giddings, Harvey and
Strominger possesses a global symmetry that is responsible for decoupling of
matter fields. The model is quantized on the basis of the extended phase space
method to allow an exhaustive, algebraic analysis to find potential anomalies.
Under a certain s... | 1993-02-26 | 2009-10-22 | [
"hep-th"
] | T. Fujiwara, Y. Igarashi and J. Kubo |
hep-th/9302138 | The Lie algebra of sl(2)-valued automorphic functions on a torus | It is shown that the Lie algebra of the automorphic, meromorphic sl(2, C)
-valued functions on a torus is a geometric realization of a certain
infinite-dimensional finitely generated Lie algebra. In the trigonometric
limit, when the modular parameter of the torus goes to zero, the former Lie
algebra goes over into the ... | 1993-02-26 | 2009-10-22 | [
"hep-th",
"math.QA"
] | D. B. Uglov |
hep-th/9302129 | The Spectrum of Topologically Massive Quantum Electrodynamics | We discuss the possibility for the spectrum of topologically massive quantum
electrodynamics with spinor matter fields to contain unexpected and unusual
stable particle excitations for certain values of the topological photon mass.
The new field theoretical phenomena arising from this novel spectral structure
are brief... | 1993-02-26 | 2015-06-26 | [
"hep-th"
] | Mikhail I. Dobroliubov, David Eliezer, Ian I. Kogan, Gordon W.
Semenoff and Richard J. Szabo |
hep-th/9302136 | Algebraic characterization of the Wess-Zumino consistency conditions in
gauge theories | A new way of solving the descent equations corresponding to the Wess-Zumino
consistency conditions is presented. The method relies on the introduction of
an operator $\delta$ which allows to decompose the exterior space-time
derivative $d$ as a $BRS$ commutator. The case of the Yang-Mills theories is
treated in detail. | 1993-02-26 | 2009-10-22 | [
"hep-th"
] | S. P. Sorella |
hep-th/9302133 | Transfer Matrix Formalism for Two-Dimensional Quantum Gravity and
Fractal Structures of Space-time | We develop a transfer matrix formalism for two-dimensional pure gravity. By
taking the continuum limit, we obtain a "Hamiltonian formalism'' in which the
geodesic distance plays the role of time. Applying this formalism, we obtain a
universal function which describes the fractal structures of two dimensional
quantum gr... | 1993-02-26 | 2009-10-22 | [
"hep-th",
"hep-lat"
] | H. Kawai, N. Kawamoto, T. Mogami and Y. Watabiki |
hep-th/9302123 | Adler-Bardeen theorem and vanishing of the gauge beta function | The proof of the non-renormalization theorem for the gauge anomaly of
four-dimensional theories is extended to the case of models with a vanishing
one-loop gauge beta function. | 1993-02-25 | 2009-10-22 | [
"hep-th"
] | O. Piguet and S.P. Sorella |
hep-th/9302124 | How Complete is the Classification of W-Symmetries ? | In 2D conformal quantum field theory, we continue a systematic study of
W-algebras with two and three generators and their highest weight
representations focussing mainly on rational models. We review the known facts
about rational models of W(2,\delta)-algebras. Our new rational models of
W-algebras with two generator... | 1993-02-25 | 2009-10-22 | [
"hep-th"
] | W. Eholzer, A. Honecker, R. Huebel |
hep-th/9302122 | On the finiteness of the BRS modulo-d cocycles | Ladders of field polynomial differential forms obeying systems of descent
equations and corresponding to observables and anomalies of gauge theories are
renormalized. They obey renormalized descent equations. Moreover they are shown
to have vanishing anomalous dimensions. As an application a simple proof of the
nonreno... | 1993-02-25 | 2009-10-22 | [
"hep-th"
] | Olivier Piguet and Silvio P. Sorella |
hep-th/9302125 | Generalized Miura Transformations, Two-Boson KP Hierarchies and their
Reduction to KDV Hierarchies | Bracket preserving gauge equivalence is established between several two-boson
generated KP type of hierarchies. These KP hierarchies reduce under symplectic
reduction (via Dirac constraints) to KdV, mKdV and Schwarzian KdV hierarchies.
Under this reduction the gauge equivalence is taking form of the conventional
Miura ... | 1993-02-25 | 2015-06-26 | [
"hep-th"
] | H. Aratyn, L.A. Ferreira, J.F. Gomes, R.T. Medeiros, and A.H. Zimerman |
hep-th/9302128 | On the problem of unboundedness from below of the spinor QED Hamiltonian | We show that the Hamiltonian $ h= H_{QED}+H_2$, where $H_{QED}$ is the spinor
QED Hamiltonian and $H_2$ is the positive transversal photon mass term, is
unbounded from below if the electromagnetic coupling constant $e^2$ is small
enough, $e^2<e^2_0 $, and the transversal photon squared mass parameter $M^2$
is not too l... | 1993-02-25 | 2007-05-23 | [
"hep-th"
] | L.G. Zastavenko |
hep-th/9302115 | On RSOS models associated to Lie algebras and RCFT | RSOS models based on the Lie algebras $B_m$, $C_m$ and $D_m$ are derived from
the braiding of conformal field theory. This gives the first systematic
derivation of these models earlier described by Jimbo et al. The general two
field Boltzmann weights associated to any RCFT are described, giving in
particular the off cr... | 1993-02-24 | 2009-10-22 | [
"hep-th"
] | Doron Gepner |
hep-th/9302117 | Equations of Motion for Spinning Particles in External\\Electromagnetic
and Gravitational Fields | The equations of motion for the position and spin of a classical particle
coupled to an external electromagnetic and gravitational potential are derived
from an action principle. The constraints insuring a correct number of
independent spin components are automatically satisfied. In general the spin is
not Fermi-Walker... | 1993-02-24 | 2009-10-22 | [
"hep-th"
] | Karl Yee and Myron Bander |
hep-th/9302121 | Multiple Chern-Simons Fields on a Torus | Intertwined multiple Chern-Simons gauge fields induce matrix statistics among
particles. We analyse this theory on a torus, focusing on the vacuum structure
and the Hilbert space. The theory can be mimicked, although not completely, by
an effective theory with one Chern-Simons gauge field. The correspondence
between th... | 1993-02-24 | 2010-11-01 | [
"hep-th",
"cond-mat"
] | D. Wesolowski, Y. Hosotani, and C.-L. Ho |
hep-th/9302114 | The covariant scattering and cohomology of $W_3$ strings | A general formalism for covariant $W_3$ string scattering is given. It is
found necessary to use screening charges that are constructed from the $W_3$
fields including ghosts. The scattering amplitudes so constructed contain
within them Ising model correlation functions and agree with those found
previously by the auth... | 1993-02-24 | 2015-06-26 | [
"hep-th"
] | Michael Freeman & Peter West |
hep-th/9302119 | Light-Front QCD: Role of Longitudinal Boundary Integrals | In the canonical light-front QCD, the elimination of unphysical gauge degrees
of freedom leads to a set of boundary integrals which are associated with the
light-front infrared singularity. We find that a consistent treatment of the
boundary integrals leads to the cancellation of the light-front linear infrared
diverge... | 1993-02-24 | 2009-10-22 | [
"hep-th"
] | Wei-Min Zhang and Avaroth Harindranath |
hep-th/9302118 | We Are Not Stuck With Gluing | We show that the construction of Ocneanu, which yields 1 for any 4D manifold,
is not identical to our construction, which gives different numbers for
different manifolds. | 1993-02-24 | 2008-02-03 | [
"hep-th",
"math.QA"
] | David N. Yetter and Louis Crane |
hep-th/9302116 | Aharonov-Bohm Scattering, Contact Interactions and Scale Invariance | We perform a perturbative analysis of the Aharonov-Bohm problem to one loop
in a field-theoretic formulation, and show that contact interactions are
necessary for renormalizability. In general, the classical scale invariance of
this problem is broken quantum mechanically. There exists however a critical
point for which... | 1993-02-24 | 2009-10-22 | [
"hep-th"
] | O. Bergman and G. Lozano |
hep-th/9302120 | Condensates and Singularities in String Theory | We derive a class of solutions to the string sigma-model equations for the
closed bosonic string. The tachyon field is taken to form a constant condensate
and the beta-function equations at one-loop level are solved for the evolution
of the metric and the dilaton. The solutions represent critical string theories
in arb... | 1993-02-24 | 2009-09-25 | [
"hep-th"
] | Alan Kostelecky and Malcolm Perry |
hep-th/9302112 | Reaction-Diffusion Processes, Critical Dynamics and Quantum Chains | The master equation describing non-equilibrium one-dimensional problems like
diffusion limited reactions or critical dynamics of classical spin systems can
be written as a Schr\"odinger equation in which the wave function is the
probability distribution and the Hamiltonian is that of a quantum chain with
nearest neighb... | 1993-02-23 | 2016-09-06 | [
"hep-th",
"cond-mat",
"hep-lat"
] | Francisco C. Alcaraz, Michel Droz, Malte Henkel and Vladimir
Rittenberg |
hep-th/9302110 | Lectures on W-Gravity, W-Geometry and \W-Strings | Lectures given at the Trieste Summer School, 1992. These notes are an update
of my review article "Classical and Quantum W-Gravity", preprint QMW-92-1,
published in in "Strings and Symmetries 1991", with some extra material on
W-geometry, W-symmetry in conformal field theory and W-strings. | 1993-02-23 | 2007-05-23 | [
"hep-th"
] | C.M. Hull |
hep-th/9302109 | Charge Quantization of Axion-Dilaton Black Holes | We present axion-dilaton black-hole and multi-black-hole solutions of the
low-energy string effective action. Under $SL(2,R)$ electric-magnetic duality
rotations only the ``hair" (charges and asymptotic values of the fields) of our
solutions is transformed. The functional form of the solutions is
duality-invariant. Axi... | 1993-02-23 | 2009-10-22 | [
"hep-th"
] | Renata Kallosh and Tomas Ortin |
hep-th/9302113 | Division algebras, Galois fields, quadratic residues | Intended for mathematical physicists interested in applications of the
division algebras to physics, this article highlights some of their more
elegant properties with connections to the theories of Galois fields and
quadratic residues. | 1993-02-23 | 2008-02-03 | [
"hep-th",
"math.RA"
] | Geoffrey Dixon |
hep-th/9302111 | Anyonic Realization of $SU_q(N)$ Quantum Algebra | By considering a set of $N$ anyonic oscillators ( non-local, intrinsic
two-dimensional objects interpolating between fermionic and bosonic
oscillators) on a two-dimensional lattice, we realize the $SU_q(N)$ quantum
algebra by means of a generalized Schwinger construction. We find that the
deformation parameter $q$ of t... | 1993-02-23 | 2009-10-22 | [
"hep-th"
] | Raffaele Caracciolo and Marco A. R-Monteiro |
hep-th/9302102 | Yangians and Gelfand-Zetlin bases | We establish a relationship between the modern theory of Yangians and the
classical construction of the Gelfand-Zetlin bases for the complex Lie algebra
$\gn$. Our approach allows us to produce the $q$-analogues of the
Gelfand-Zetlin formulae in a straightforward way. | 1993-02-22 | 2008-02-03 | [
"hep-th",
"math.QA"
] | M. Nazarov and Vitaly Tarasov |
hep-th/9302104 | QCD at High Energies and Two-Dimensional Field Theory | Previous studies of high-energy scattering in QCD have shown a remarkable
correspondence with two-dimensional field theory. In this paper we formulate a
simple effective model in which this two-dimensional nature of the interactions
is manifest. Starting from the (3+1)-dimensional Yang-Mills action, we
implement the hi... | 1993-02-22 | 2008-02-03 | [
"hep-th"
] | Herman Verlinde and Erik Verlinde |
hep-th/9302100 | Static Quark Potential from the Polyakov Sum over Surfaces | Using the Polyakov string ansatz for the rectangular Wilson loop we calculate
the static potential in the semiclassical approximation. Our results lead to a
well defined sum over surfaces in the range $1<d<25$. | 1993-02-22 | 2010-11-01 | [
"hep-th"
] | Zbigniew Jaskolski and Krzysztof A. Meissner |
hep-th/9302099 | Anomaly Cancellations and Open-String Theories | In models of oriented closed strings, anomaly cancellations are deeply linked
to the {\it modular invariance} of the torus amplitude. If open and/or
unoriented strings are allowed, there are no non-trivial modular
transformations in the additional genus-one amplitudes (Klein bottle, annulus
and M\"obius strip). As orig... | 1993-02-22 | 2007-05-23 | [
"hep-th"
] | Augusto Sagnotti |
hep-th/9302108 | Instantons, Monopoles, Strings and Fivebranes | We discuss three classes of solitonic solutions in string theory: instantons,
monopoles and string-like solitons. Instantons may provide a nonperturbative
understanding of the vacuum structure of string theory, while monopoles may
appear in string predictions for grand unification. The particular monopole
solution show... | 1993-02-22 | 2007-05-23 | [
"hep-th"
] | Ramzi R. Khuri |
hep-th/9302105 | Super Elliptic Curves | A detailed study is made of super elliptic curves, namely super Riemann
surfaces of genus one considered as algebraic varieties, particularly their
relation with their Picard groups. This is the simplest setting in which to
study the geometric consequences of the fact that certain cohomology groups of
super Riemann sur... | 1993-02-22 | 2009-10-22 | [
"hep-th",
"alg-geom",
"math.AG"
] | Jeffrey M. Rabin |
hep-th/9302107 | Residual Gauge Fixing in Light-Front QCD | Understanding the nontrivial features of light-front QCD is a central goal in
current investigations of nonperturbative light-front field theory. We find
that, with the choice of light-front gauge with antisymmetric boundary
conditions for the field variables, the residual gauge freedom is fixed and the
light-front QCD... | 1993-02-22 | 2015-06-26 | [
"hep-th"
] | Wei-Min Zhang and Avaroth Harindranth |
hep-th/9302101 | Quantum Gravity and Black Hole | The quantum theory of the spherically symmetric gravity in 3+1 dimensions is
investigated. The functional measures are explicitly evaluated and the physical
state conditions are derived by using the technique developed in two
dimensional quantum gravity. Then the new features which are not seen in ADM
formalism come ou... | 1993-02-22 | 2007-05-23 | [
"hep-th"
] | Ken-ji Hamada and Asato Tsuchiya |
hep-th/9302106 | Fields and Symmetries of 2D Strings | We describe some recent progress in understanding and formulating string
theory which is based on extensive studies of strings in lower (D=2) dimension.
At the center is a large $W_{\infty}$ symmetry that appears most simply in the
matrix model picture. In turn the symmetry defines the dynamics giving Ward
identities a... | 1993-02-22 | 2007-05-23 | [
"hep-th"
] | A. Jevicki (BROWN) |
hep-th/9302103 | Holomorphic Anomalies in Topological Field Theories | We study the stringy genus one partition function of $N=2$ SCFT's. It is
shown how to compute this using an anomaly in decoupling of BRST trivial states
from the partition function. A particular limit of this partition function
yields the partition function of topological theory coupled to topological
gravity. As an ap... | 1993-02-22 | 2009-09-17 | [
"hep-th",
"alg-geom",
"math.AG"
] | M.Bershadsky, S.Cecotti, H.Ooguri and C.Vafa, S.Katz |
hep-th/9302098 | On the Squeezed Vacuum States Corresponding to the General Two-Mode
Bogolubov Transformation | In this paper the explicit form of the operator of transformation of the
vacuum states for the general two-mode Bogolubov transformation is found | 1993-02-21 | 2008-02-03 | [
"hep-th",
"cond-mat",
"funct-an",
"math.FA"
] | Oleg Mokhov |
hep-th/9302097 | An Introduction into the Feynman Path Integral | In this lecture a short introduction is given into the theory of the Feynman
path integral in quantum mechanics. The general formulation in Riemann spaces
will be given based on the Weyl- ordering prescription, respectively product
ordering prescription, in the quantum Hamiltonian. Also, the theory of
space-time transf... | 1993-02-20 | 2007-05-23 | [
"hep-th"
] | Christian Grosche |
hep-th/9302088 | Quantum Chains with U_q(SL(2)) Symmetry and Unrestricted Representations | We consider two-state (q^2=-1) and three-state (q^3=1) one-dimensional
quantum spin chains with U_q(SL(2)) symmetry. Taking unrestricted
representations (periodic, semi-periodic and nilpotent), we show which are the
necessary conditions to obtain a Hermitian Hamiltonian. | 1993-02-19 | 2009-10-22 | [
"hep-th",
"cond-mat",
"math.QA"
] | Daniel Arnaudon and Vladimir Rittenberg |
hep-th/9302091 | Space-Time Supersymmetry of Extended Fermionic Strings in $2 + 2$
Dimensions | The $N=2$ fermionic string theory is revisited in light of its recently
proposed equivalence to the non-compact $N=4$ fermionic string model. The
issues of space-time Lorentz covariance and supersymmetry for the BRST
quantized $N=2$ strings living in uncompactified $2 + 2$ dimensions are
discussed. The equivalent local... | 1993-02-19 | 2010-04-06 | [
"hep-th"
] | S.V.Ketov |
hep-th/9302086 | Semi-infinite cohomology of W-algebras | We generalize some of the standard homological techniques to $\cW$-algebras,
and compute the semi-infinite cohomology of the $\cW_3$ algebra on a variety of
modules. These computations provide physical states in $\cW_3$ gravity coupled
to $\cW_3$ minimal models and to two free scalar fields. | 1993-02-19 | 2009-09-11 | [
"hep-th",
"math.QA"
] | P. Bouwknegt, J. McCarthy and K. Pilch |
hep-th/9302090 | Quantum Group Gauge Theories and Covariant Quantum Algebras | The algebraic formulation of the quantum group gauge models in the framework
of the $R$-matrix approach to the theory of quantum groups is given. We
consider gauge groups taking values in the quantum groups and noncommutative
gauge fields transformed as comodules under the coaction of the gauge quantum
group $ G_{q}$. ... | 1993-02-19 | 2009-10-22 | [
"hep-th"
] | A.P.Isaev and Z.Popowicz |
hep-th/9302087 | On the Uniqueness of the Newton-Wigner Position Operator | It is shown that the quantum position operator of Newton and Wigner for
non-zero mass systems is uniquely determined if one imposes a quantum
''manifest covariance'' condition of the same type as the similar condition of
Currie, Jordan and Sudarshan in the the framework of the Hamiltonian formalism. | 1993-02-19 | 2007-05-23 | [
"hep-th"
] | Dan Radu Grigore |
hep-th/9302096 | Quantum Purity at a Small Price: Easing a Black Hole Paradox | Following Hawking, it is usual to mimic the effect of collapse space-time
geometry on quantum fields in a semi-classical approximation by imposing
suitable boundary conditions at the origin of coordinates, which effectively
becomes a moving mirror. Suitable mirror trajectories induces a close analogue
to the radiance o... | 1993-02-19 | 2007-05-23 | [
"hep-th"
] | Frank Wilczek |
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