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/9311127 | On the Poincare polynomials for Landau-Ginzburg Orbifolds | We construct the Poincare polynomials for Landau-Ginzburg orbifolds with
projection operators.Using them we show that special types of dualities
including Poincare duality are realized under certain conditions. When
Calabi-Yau interpretation exists, two simple formulae for Hodge numbers
$h^{2,1}$ and $h^{1,1}$ are obta... | 1993-11-22 | 2010-11-01 | [
"hep-th"
] | Hitoshi Sato |
hep-th/9311131 | Tree scattering amplitudes of the spin-4/3 fractional superstring II:
the twisted sectors | The spin-4/3 fractional superstring is characterized by a world-sheet chiral
algebra involving spin-4/3 currents. The discussion of the tree-level
scattering amplitudes of this theory presented in hepth/9310131 is expanded to
include amplitudes containing two twisted-sector states. These amplitudes are
shown to satisfy... | 1993-11-22 | 2009-10-22 | [
"hep-th"
] | Philip C. Argyres and S.-H. Henry Tye |
hep-th/9311128 | Charge sum rules in N=2 theories | Some errors in section 4 are corrected. No change in the results. | 1993-11-22 | 2009-09-29 | [
"hep-th"
] | O. Aharony, S. Yankielowicz and A. N. Schellekens |
hep-th/9311133 | Formation and Evaporation of a Naked Singularity in 2D Gravity | We describe a classical configuration of conformal matter forming a naked
singularity and discuss its subsequent Hawking evaporation within the context
of two dimensional dilaton gravity. The one loop analysis is credible for a
large mass naked singularity and suggests the existence of a weak cosmological
censorship th... | 1993-11-22 | 2009-10-22 | [
"hep-th",
"gr-qc"
] | Cenalo Vaz and Louis Witten |
hep-th/9311134 | On the algebraic structures connected with the linear Poisson brackets
of hydrodynamics type | The generalized form of the Kac formula for Verma modules associated with
linear brackets of hydrodynamics type is proposed. Second cohomology groups of
the generalized Virasoro algebras are calculated. Connection of the central
extensions with the problem of quntization of hydrodynamics brackets is
demonstrated. | 1993-11-22 | 2016-09-06 | [
"hep-th",
"math.QA"
] | A. A. Balinsky, A. I. Balinsky |
hep-th/9311132 | Quantum integrable systems and representations of Lie algebras | In this paper the quantum integrals of the Hamiltonian of the quantum
many-body problem with the interaction potential K/sinh^2(x) (Sutherland
operator) are constructed as images of higher Casimirs of the Lie algebra gl(N)
under a certain homomorphism from the center of U(gl(N)) to the algebra of
differential operators... | 1993-11-22 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Pavel Etingof |
hep-th/9311129 | Strings and Causality | Notes of the author's talk at Cargese, May 19,1993. The calculation of the
string field commutator is simplified by relating it to the short proper time,
semiclassical string path integral. | 1993-11-22 | 2007-05-23 | [
"hep-th"
] | E. Martinec |
hep-th/9311136 | Particles with distance dependent statistics at low temperatures | We consider a simplified model of particles with effectively distance
dependent statistics, that is particles coupled to a gauge field the Lagrangian
of which contains the Chern-Simons term. We analyze the low-lying states of the
two-particle system and show that under certain conditions they can exhibit
negative compr... | 1993-11-22 | 2007-05-23 | [
"hep-th"
] | S.V.Mashkevich and G.M.Zinovjev |
hep-th/9311126 | Solution of the SU(2) Mandelstam Constraints | It is shown how the Mandelstam constraints for an $SU(2)$ pure lattice gauge
theory with $3{\cal N}$ physical degrees of freedom may be solved completely in
terms of $3{\cal N}$ Wilson and Polyakov loop variables and ${\cal N}-1$ gauge
invariant discrete +/-1 variables, thus enabling a manifestly gauge invariant
formul... | 1993-11-22 | 2009-10-22 | [
"hep-th",
"hep-lat"
] | Jay Watson |
hep-th/9311130 | Conformal Field Theory Techniques in Large N Yang-Mills Theory | Following some motivating comments on large N two-dimensional Yang-Mills
theory, we discuss techniques for large N group representation theory, using
quantum mechanics on the group manifold U(N), its equivalence to a
quasirelativistic two-dimensional free fermion theory, and bosonization. As
applications, we compute th... | 1993-11-22 | 2007-05-23 | [
"hep-th"
] | Michael R. Douglas |
hep-th/9311135 | Generalized quantization scheme for central extensions of Lie algebras | We present the method for finding of the nonlinear Poisson-Lie groups
structures on the vector spaces and for their quantization. For arbitrary
central extension of Lie algebra explicit formulas of quantization are
proposed. | 1993-11-22 | 2009-10-22 | [
"hep-th",
"math.QA"
] | A. A. Balinsky |
hep-th/9311125 | Poisson-Lie group of pseudodifferential symbols and fractional KP-KdV
hierarchies | The Lie algebra of pseudodifferential symbols on the circle has a nontrivial
central extension (by the ``logarithmic'' 2-cocycle) generalizing the Virasoro
algebra. The corresponding extended subalgebra of integral operators generates
the Lie group of classical symbols of all real (or complex) degrees. It turns
out tha... | 1993-11-21 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Boris Khesin and Ilya Zakharevich |
hep-th/9311122 | Semiclassical vs. Exact Solutions of Charged Black Hole in Four
Dimensions and Exact O(d,d) Duality | We derive a charged black hole solution in four dimensions described by
$SL(2,R)\times SU(2)\times U(1)/U(1)^2$ WZW coset model. Using the algebraic
Hamiltonian method we calculate the corresponding solution that is exact to all
orders in ${1\over k}$. It is shown that unlike the 2D black hole, the
singularity remains ... | 1993-11-21 | 2010-11-01 | [
"hep-th"
] | David Gershon |
hep-th/9311123 | Operator Identities, Representations of Algebras and the Problem of
Normal Ordering | Families of operator identities appeared as a consequence of an existence of
finite-dimensional representation of (super) Lie algebras of first-order
differential operators and $q$-deformed (quantum) algebras of first-order
finite-difference operators are presented. It is shown that those identities
can be rewritten in... | 1993-11-20 | 2009-10-22 | [
"hep-th"
] | Alexander Turbiner and Gerhard Post |
hep-th/9311124 | Distance dependent statistics in a P,T-invariant model | It is shown that in the P,T-invariant model with the mixed Chern-Simons term
the interaction of charge carriers leads to effective changing of their
statistics, which depends on distance between them. In particular, in the limit
of large distances fermions effectively turn into bosons. | 1993-11-20 | 2007-05-23 | [
"hep-th"
] | E.V.Gorbar and S.V.Mashkevich |
hep-th/9311118 | The Quantum ISL(2,C) Group | Abstr.: The classical r-matrix implied by the quantum k-Poincare algebra of
Lukierski,Nowicki and Ruegg is used to generate a Poisson structure on the
ISL(2,C) group. A quantum deformation of the ISL(2,C) group ( on the Hopf
algebra level ) is obtained by a trivial quantization. | 1993-11-19 | 2009-10-22 | [
"hep-th"
] | P. Maslanka |
hep-th/9311121 | Differential Algebras in Non-Commutative Geometry | We discuss the differential algebras used in Connes' approach to Yang-Mills
theories with spontaneous symmetry breaking. These differential algebras
generated by algebras of the form functions $\otimes$ matrix are shown to be
skew tensorproducts of differential forms with a specific matrix algebra. For
that we derive a... | 1993-11-19 | 2009-10-22 | [
"hep-th",
"math.QA"
] | W. Kalau, N. A. Papadopoulos, J. Plass, J.-M. Warzecha |
hep-th/9311117 | Six-loop divergences in the supersymmetric Kahler sigma model | The two-dimensional supersymmetric $\s$-model on a K\"ahler manifold has a
non-vanishing $\b$-function at four loops, but the $\b$-function at five loops
can be made to vanish by a specific choice of renormalisation scheme. We
investigate whether this phenomenon persists at six loops, and conclude that it
does not; the... | 1993-11-19 | 2015-06-26 | [
"hep-th"
] | I. Jack, D. R. T. Jones and J. Panvel |
hep-th/9311114 | Exponential mapping for non semisimple quantum groups | The concept of universal T matrix, recently introduced by Fronsdal and
Galindo in the framework of quantum groups, is here discussed as a
generalization of the exponential mapping. New examples related to
inhomogeneous quantum groups of physical interest are developed, the duality
calculations are explicitly presented ... | 1993-11-19 | 2009-10-22 | [
"hep-th",
"math.QA"
] | F. Bonechi, Enrico Celeghini, R. Giachetti, C. M. Pere\~na, E. Sorace,
M. Tarlini |
hep-th/9311112 | Covariant differential complexes on quantum linear groups | We consider the possible covariant external algebra structures for Cartan's
1-forms on GL_q(N) and SL_q(N). We base upon the following natural postulates:
1. the invariant 1-forms realize an adjoint representation of quantum group;
2. all monomials of these forms possess the unique ordering.
For the obtained exte... | 1993-11-19 | 2016-09-06 | [
"hep-th",
"math.QA"
] | A. P. Isaev and P. N. Pyatov |
hep-th/9311111 | Landau Levels and Quantum Group | We find a quantum group structure in two-dimensional motions of a
nonrelativistic electron in a uniform magnetic field and in a periodic
potential. The representation basis of the quantum algebra is composed of
wavefunctions of the system. The quantum group symmetry commutes with the
Hamiltonian and is relevant to the ... | 1993-11-19 | 2015-06-26 | [
"hep-th"
] | H.-T. Sato |
hep-th/9311116 | Integrable QFT(2) Encoded on Products of Dynkin Diagrams | A large class of Thermodynamic Bethe Ansatz equations governing the
Renormalization Group evolution of the Casimir energy of the vacuum on the
cylinder for an integrable two-dimensional field theory, can often be encoded
on a tensor product of two graphs. We demonstrate here that in this case the
two graphs can only be... | 1993-11-19 | 2007-05-23 | [
"hep-th"
] | E.Quattrini, F.Ravanini and R.Tateo |
hep-th/9311120 | New Black Hole, String and Membrane Solutions of the Four-Dimensional
Heterotic String | We present solutions of the low-energy four-dimensional heterotic string
corresponding to $p$-branes with $p=0,1,2$, which are characterized by a mass
per unit $p$-volume, ${\cal M}_{p+1}$, and topological ``magnetic'' charge,
$g_{p+1}$. In the extremal limit, $\sqrt{2} \kappa {\cal M}_{p+1} = g_{p+1}$,
they reduce to ... | 1993-11-19 | 2011-07-19 | [
"hep-th"
] | M.J.Duff, Ramzi R. Khuri, Ruben Minasian, Joachim Rahmfeld |
hep-th/9311113 | Symmetries in a Polynomial Formulation of the Non-Linear Sigma-Model | We study the realisation of global symmetries in a polynomial formulation of
the non-linear sigma-model. We show that there are global symmetries whose
corresponding Noether currents are the topological currents in the usual
formulation. The usual Noether currents associated with the internal symmetry
group are reprodu... | 1993-11-19 | 2009-10-22 | [
"hep-th"
] | C. D. Fosco and R. C. Trinchero |
hep-th/9311119 | On Soliton Content of Self Dual Yang-Mills Equations | Exploiting the formulation of the Self Dual Yang-Mills equations as a
Riemann-Hilbert factorization problem, we present a theory of pulling back
soliton hierarchies to the Self Dual Yang-Mills equations. We show that for
each map $ \C^4 \to \C^{\infty } $ satisfying a simple system of linear
equations formulated below ... | 1993-11-19 | 2009-10-22 | [
"hep-th",
"nlin.SI",
"solv-int"
] | Jacek Szmigielski |
hep-th/9311108 | Light-Front Quantisation as an Initial-Boundary Value Problem | In the light front quantisation scheme initial conditions are usually
provided on a single lightlike hyperplane. This, however, is insufficient to
yield a unique solution of the field equations. We investigate under which
additional conditions the problem of solving the field equations becomes well
posed. The consequen... | 1993-11-18 | 2009-10-22 | [
"hep-th"
] | T.Heinzl and E. Werner |
hep-th/9311104 | N=2 Superconformal Theories and their Integrable Deformations | After a short review of the algebraic setting of N=2 superconformal field
theories, their chiral ring and their perturbations, I present some recent
results on curious relations between the integrability of their perturbations
and algebraic properties of their deformed chiral ring. (Lecture given at
Hang-zhou, China, S... | 1993-11-18 | 2007-05-23 | [
"hep-th"
] | J.-B. Zuber |
hep-th/9311105 | Non-Fermi liquid behaviour of electrons in the half-filled honeycomb
lattice (A renormalization group approach) | A system of electrons in the two-dimensional honeycomb lattice with Coulomb
interactions is described by a renormalizable quantum field theory similar but
not equal to QED_3. Renormalization group techniques are used to investigate
the infrared behaviour of the system that flows to a fixed point with non-Fermi
liquid c... | 1993-11-18 | 2009-10-22 | [
"hep-th"
] | J. Gonzalez, F. Guinea and M. A. H. Vozmediano |
hep-th/9311102 | On the Infrared Limit of Two Dimensional QCD | We study the infrared limit of two dimensional QCD, with massless dynamical
Dirac fermions that are in the fundamental representation of the gauge group.
We find that the theory reduces to a spin generalization of the Calogero model
with an additional magnetic coupling which is of the Pauli type. | 1993-11-18 | 2009-10-22 | [
"hep-th"
] | A.J. Niemi and P. Pasanen |
hep-th/9311110 | Symplectic Geometry of Supersymmetry and Nonlinear Sigma Model | Recently it has been argued, that Poincar\'{e} supersymmetric field theories
admit an underlying loop space hamiltonian (symplectic) structure. Here shall
establish this at the level of a general $N=1$ supermultiplet. In particular,
we advocate the use of a superloop space and explain the necessity of using
nonconventi... | 1993-11-18 | 2009-10-22 | [
"hep-th"
] | Kaupo Palo |
hep-th/9311106 | Axial Monopoles, The Quantization of Electric Charge and a Dynamical
Discreteness of Space-Time | In the present contribution we show that the introduction of a conserved
axial current in electrodynamics can explain the quantization of electric
charge, preserving parity conservation, and introduces a dynamical discreteness
into space-time. | 1993-11-18 | 2007-05-23 | [
"hep-th"
] | S.C.S. Silva, P.C.R.C. Mello and M.C. Nemes |
hep-th/9311107 | Chiral Vertex Operators in Off-Conformal Theory: The Sine-Gordon Example | We study chiral vertex operators in the sine-Gordon [SG] theory, viewed as an
off-conformal system. We find that these operators, which would have been
primary fields in the conformal limit, have interesting and, in some ways,
unexpected properties in the SG model. Some of them continue to have scale-
invariant dynamic... | 1993-11-18 | 2009-10-22 | [
"hep-th"
] | Shau-Jin Chang and R. Rajaraman |
hep-th/9311115 | Regge Regime in QCD and Asymmetric Lattice Gauge Theory | We study the Regge regime of QCD as a special regime of lattice gauge theory
on an asymmetric lattice. This lattice has a spacing $a_0 $ in the longitudinal
direction and a spacing $a_t $ in the transversal direction. The limit
$\frac{a_{0}}{a_{t}} \to 0$ corresponds to correlation functions with small
longitudinal and... | 1993-11-18 | 2011-07-19 | [
"hep-th",
"hep-lat",
"hep-ph"
] | I.Ya. Aref'eva |
hep-th/9311103 | Classical and Quantum Evolutions of the de Sitter and the anti-de Sitter
Universes in 2+1 dimensions | Two canonical formulations of the Einstein gravity in 2+1 dimensions, namely,
the ADM formalism and the Chern-Simons gravity, are investigated in the case of
nonvanishing cosmological constant. General arguments for reducing phase spaces
of the two formalisms are given when spatial hypersurface is compact. In
particula... | 1993-11-18 | 2013-11-13 | [
"hep-th"
] | Kiyoshi Ezawa |
hep-th/9311109 | Lie Algebras and Braided Geometry | We show that every Lie algebra or superLie algebra has a canonical braiding
on it, and that in terms of this its enveloping algebra appears as a flat space
with braided-commuting coordinate functions. This also gives a new point of
view about $q$-Minkowski space which arises in a similar way as the enveloping
algebra o... | 1993-11-18 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Shahn Majid |
hep-th/9311092 | Exact C=1 Boundary Conformal Field Theories | We present a solution of the problem of a free massless scalar field on the
half line interacting through a periodic potential on the boundary. For a
critical value of the period, this system is a conformal field theory with a
non-trivial and explicitly calculable S-matrix for scattering from the
boundary. Unlike all o... | 1993-11-17 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | Curtis G. Callan and Igor R. Klebanov |
hep-th/9311091 | Dynamical Equations of Spinning Particles: Feynman's Proof | In this letter, we discuss the extension of Feynman's derivation of the
equation of motion to the case of spinning particles. We show that a spinning
particle interacts only with the electromagnetic and gravitational fields. In
the absence of the electromagnetic interactions, we rederive Papapetrou's
equations for spin... | 1993-11-17 | 2009-10-22 | [
"hep-th"
] | Chihong Chou |
hep-th/9311094 | The differential geometry of Fedosov's quantization | B. Fedosov has given a simple and very natural construction of a deformation
quantization for any symplectic manifold, using a flat connection on the bundle
of formal Weyl algebras associated to the tangent bundle of a symplectic
manifold. The connection is obtained by affinizing, nonlinearizing, and
iteratively flatte... | 1993-11-17 | 2009-09-25 | [
"hep-th",
"math.DG",
"math.QA"
] | Claudio Emmrich, Alan Weinstein |
hep-th/9311101 | Coherent States in Null-Plane Q.E.D | Light front field theories are known to have the usual infra-red divergences
of the equal time theories, as wellas new `spurious' infra-red divergences. The
formar kind of IR divergences are usually treated by giving a small mass to the
gauge particle. An alternative method to deal with these divergences is to
calculat... | 1993-11-17 | 2009-10-22 | [
"hep-th"
] | Anuradha Misra |
hep-th/9311100 | Vortex Dynamics in Selfdual Maxwell-Higgs Systems with Uniform
Background Electric Charge Density | We introduce selfdual Maxwell-Higgs systems with uniform background electric
charge density and show that the selfdual equations satisfied by topological
vortices can be reduced to the original Bogomol'nyi equations without any
background. These vortices are shown to carry no spin but to feel the Magnus
force due to th... | 1993-11-17 | 2009-10-22 | [
"hep-th"
] | Ki-Myeong Lee |
hep-th/9311098 | Yang-Mills Cosmologies and Collapsing Gravitational Sphalerons | Cosmological solutions with a homogeneous Yang-Mills field which oscillates
and passes between topologically distinct vacua are discussed. These solutions
are used to model the collapsing Bartnik-McKinnon gravitational sphaleron and
the associated anomalous production of fermions. The Dirac equation is analyzed
in thes... | 1993-11-17 | 2009-10-07 | [
"hep-th",
"gr-qc"
] | G.W. Gibbons and Alan R. Steif |
hep-th/9311097 | On the Semi-Relative Condition for Closed (TOPOLOGICAL) Strings | We provide a simple lagrangian interpretation of the meaning of the $b_0^-$
semi-relative condition in closed string theory. Namely, we show how the
semi-relative condition is equivalent to the requirement that physical
operators be cohomology classes of the BRS operators acting on the space of
local fields {\it covari... | 1993-11-17 | 2010-11-01 | [
"hep-th"
] | C.M. Becchi, R. Collina and C. Imbimbo |
hep-th/9311095 | Quantum supergroups of $GL(n|m)$ type: differential forms, Koszul
complexes and Berezinians | We introduce and study the Koszul complex for a Hecke $R$-matrix. Its
cohomologies, called the Berezinian, are used to define quantum
superdeterminant for a Hecke $R$-matrix. Their behaviour with respect to Hecke
sum of $R$-matrices is studied. Given a Hecke $R$-matrix in $n$-dimensional
vector space, we construct a He... | 1993-11-17 | 2009-09-25 | [
"hep-th",
"math.QA"
] | Volodymyr Lyubashenko and A. Sudbery |
hep-th/9311099 | Nonlocal QED admits a finitely induced gauge field action | The Letter reconsiders a result obtained by Chr\'etien and Peierls in 1954
within nonlocal QED in 4D [Proc. Roy. Soc. London A 223, 468]. Starting from
secondly quantized fermions subject to a nonlocal action with the kernel $[
i\not\partial_x a(x) - m b(x)]$ and gauge covariantly coupled to an external
U(1) gauge fiel... | 1993-11-17 | 2008-12-18 | [
"hep-th"
] | K. Scharnhorst |
hep-th/9311093 | Exact string backgrounds from WZW models based on non-semi-simple groups | We formulate WZW models based on a centrally extended version of the
Euclidean group in $d$-dimensions. We obtain string backgrounds corresponding
to conformal $\s$-models in $D=d^2$ space-time dimensions with exact central
charge $c=d^2$ and $d(d-1)/2$ null Killing vectors. By identifying the
corresponding conformal f... | 1993-11-17 | 2015-06-26 | [
"hep-th"
] | Konstadinos Sfetsos |
hep-th/9311096 | Quantization of the external algebra on a Poisson-Lie group | We show that the external algebra $\cal M$ on $GL(N)$ can be equipped with
the graded Poisson brackets compatible with the group action. We prove that
there are only two graded Poisson-Lie structures (brackets) on $\cal M$ and we
obtain their explicit description. We realize that just these two structures
appear as the... | 1993-11-17 | 2008-02-03 | [
"hep-th",
"math.QA"
] | G. E. Arutyunov and P. B. Medvedev |
hep-th/9311090 | From Quantum Probabilities to Classical Facts | Model interactions between classical and quantum systems are briefly
reviewed. These include: general measurement - like couplings, Stern-Gerlach
experiment, model of a counter, quantum Zeno effect, piecewise deterministic
Markov processes and meaning of the wave function. | 1993-11-16 | 2008-02-03 | [
"hep-th"
] | Ph. Blanchard and A. Jadczyk |
hep-th/9311085 | Circular String-Instabilities in Curved Spacetime | We investigate the connection between curved spacetime and the emergence of
string-instabilities, following the approach developed by Loust\'{o} and
S\'{a}nchez for de Sitter and black hole spacetimes. We analyse the linearised
equations determining the comoving physical (transverse) perturbations on
circular strings e... | 1993-11-16 | 2009-10-22 | [
"hep-th"
] | A.L.Larsen |
hep-th/9311089 | Correlation functions of two-matrix models | We show how to calculate correlation functions of two matrix models. Our
method consists in making full use of the integrable hierarchies and their
reductions, which were shown in previous papers to naturally appear in
multi--matrix models. The second ingredient we use are the $W$--constraints. In
fact an explicit solu... | 1993-11-16 | 2008-02-03 | [
"hep-th"
] | L.Bonora and C.S.Xiong |
hep-th/9311086 | Loop Equations for the d-dimensional n-Hermitian matrix model | We derive the loop equations for the d-dimensional n-Hermitian matrix model.
These are a consequence of the Schwinger-Dyson equations of the model. Moreover
we show that in leading order of large $N$ the loop equations form a closed
set. In particular we derive the loop equations for the $n=2^k$ matrix model
recently p... | 1993-11-16 | 2007-05-23 | [
"hep-th"
] | J. Alfaro |
hep-th/9311084 | Critical and non-critical W_{2,4} strings | Nilpotent BRST operators for higher-spin $W_{2,s}$ strings, with currents of
spins 2 and $s$, have recently been constructed for $s=4$, 5 and 6. In the case
of $W_{2,4}$, this operator can be understood as being the BRST operator for
the critical $W\!B_2$ string. In this paper, we construct a generalised BRST
operator ... | 1993-11-16 | 2010-04-06 | [
"hep-th"
] | H. Lu, C.N. Pope, X.J. Wang and S.C. Zhao |
hep-th/9311088 | 3D Gravity and Gauge Theories | I argue that the complete partition function of 3D quantum gravity is given
by a path integral over gauge-inequivalent manifolds times the Chern-Simons
partition function. In a discrete version, it gives a sum over simplicial
complexes weighted with the Turaev-Viro invariant. Then, I discuss how this
invariant can be i... | 1993-11-16 | 2007-05-23 | [
"hep-th"
] | D.V.Boulatov |
hep-th/9311087 | Renormalization-Group Improved Effective Lagrangian for Interacting
Theories in Curved Spacetime | A method for finding the renormalization group (RG) improved effective
Lagrangian for a massive interacting field theory in curved spacetime is
presented. As a particular example, the $\lambda \varphi^4$-theory is
considered and the RG improved effective Lagrangian is explicitly found up to
second order in the curvatur... | 1993-11-16 | 2009-09-17 | [
"hep-th"
] | E. Elizalde and S.D. Odintsov |
hep-th/9311081 | A Class of String Backgrounds as a Semiclassical Limit of WZW Models | A class of string backgrounds associated with non semi-simple groups is
obtained as a special large level limit of ordinary WZW models. The models have
an integer Virasoro central charge and they include the background recently
studied by Nappi and Witten. | 1993-11-15 | 2019-08-15 | [
"hep-th"
] | D.I.Olive, E.Rabinovici and A.Schwimmer |
hep-th/9311082 | Homologically Twisted Invariants Related to (2+1)- and (3+1)-Dimensional
State-Sum Topological Quantum Field Theories | Motivated by suggestions of Paolo Cotta-Ramusino's work at the physical level
of rigor relating BF theory to the Donaldson polynomials, we provide a
construction applicable to the Turaev/Viro and Crane/Yetter invariants of *a
priori* finer invariants dependent on a choice of (co)homology class on the
manifold | 1993-11-15 | 2008-02-03 | [
"hep-th",
"math.QA"
] | David N. Yetter |
hep-th/9311080 | A Cosmological Interpretation of Duality | We study the cosmological meaning of duality symmetry by considering a two
dimensional model of string cosmology. We find that as seen by an internal
observer in this universe, the scale factor rebounds at the self-dual length.
This rebound is a consequence of the adiabatic expansion. Furthermore, in this
situation the... | 1993-11-15 | 2009-10-22 | [
"hep-th"
] | M.A.R. Osorio and M.A. Vazquez-Mozo |
hep-th/9311083 | Conformally Invariant Off-shell Strings | Recent advances in non-critical string theory allow a unique continuation of
critical Polyakov string amplitudes to off-shell momenta, while preserving
conformal invariance. These continuations possess unusual, apparently stringy,
characteristics, as we illustrate with our results for three-point functions.
(Talk by R.... | 1993-11-15 | 2007-05-23 | [
"hep-th"
] | R.C. Myers and V. Periwal |
hep-th/9311079 | One-Loop Renormalization of Higher-Derivative 2D Dilaton Gravity | A theory of higher-derivative 2D dilaton gravity which has its roots in the
massive higher-spin mode dynamics of string theory is suggested. The
divergences of the effective action to one-loop are calculated, both in the
covariant and in the conformal gauge. Some technical problems which appear in
the calculations are ... | 1993-11-15 | 2009-09-17 | [
"hep-th"
] | E. Elizalde, S. Naftulin and S.D. Odintsov |
hep-th/9311078 | On the absence of localized curvature in the weak-coupling phase of
quantum gravity | In the weak field expansion of euclidean quantum gravity, an analysis of the
Wilson loops in terms of the gauge group, $SO(4)$, shows that the correspondent
statistical system does not develope any configuration with localized curvature
at low temperature. Such a ``non-local'' behavior contrasts strongly with that
of u... | 1993-11-15 | 2009-10-22 | [
"hep-th"
] | Giovanni Modanese (Center for theoretical physics, M.I.T.) |
hep-th/9311077 | Black Holes as P-Branes | We review briefly the thermodynamical interpretation of black hole physics
and discuss the problems and inconsistencies in this approach. We provide an
alternative interpretation of black holes as quantum objects and investigate
the statistical mechanics of a gas of such objects in the microcanonical
ensemble. We argue... | 1993-11-12 | 2009-09-25 | [
"hep-th"
] | B. Harms and Y. Leblanc |
hep-th/9311074 | Integrability in Hamiltonian Chern-Simons theory | We consider the moduli space of flat connections on the Riemann surface with
marked points. The new efficient parametrization is suggested and used to
construct an integrable model on the moduli space. A family of commuting
Hamiltonians is extracted from the trace of the transfer matrix built from the
Wilson line obser... | 1993-11-12 | 2008-02-03 | [
"hep-th",
"nlin.SI",
"solv-int"
] | A. Yu. Alekseev |
hep-th/9311076 | Induced $B\wedge F$ term and photon mass generation in 3+1 dimensions | Analysing a 3+1 dimensional model with four-Fermi interactions, we show that
topological $\BF$ terms (both abelian and non-abelian) can be induced
radiatively by massive fermions at the one-loop level. It is further pointed
out that a mechanism of photon (or non-abelian gauge field) mass generation
distinct from the us... | 1993-11-12 | 2015-06-26 | [
"hep-th"
] | M. Leblanc, R. MacKenzie, P.K.Panigrahi, and R. Ray |
hep-th/9311072 | Two-dimensional QCD and strings | A review is given of recent research on two-dimensional gauge theories, with
particular emphasis on the equivalence between these theories and certain
string theories with a two-dimensional target space. Some related open problems
are discussed. | 1993-11-12 | 2007-05-23 | [
"hep-th"
] | D. J. Gross, W. Taylor |
hep-th/9311075 | Regular Representation of the Quantum Heisenberg Double $U_q(sl(2))$,
$Fun_{q}(SL(2))$ ($q$ is a root of unity) | Pairing between the universal enveloping algebra $U_q(sl(2))$ and the algebra
of functions over $SL_q(2)$ is obtained in explicit terms. The regular
representation of the quantum double is constructed and investigated. The
structure of the root subspaces of the Casimir operator is revealed and
described in terms of $SL... | 1993-11-12 | 2008-02-03 | [
"hep-th",
"math.QA"
] | D. V. Gluschenkov and A. V. Lyakhovskaya |
hep-th/9311067 | Additional Symmetries of Generalized Hierarchies | The non-isospectral symmetries of a general class of integrable hierarchies
are found, generalizing the Galilean and scaling symmetries of the Korteweg--de
Vries equation and its hierarchy. The symmetries arise in a very natural way
from the semi-direct product structure of the Virasoro algebra and the affine
Kac--Mood... | 1993-11-11 | 2016-09-06 | [
"hep-th"
] | T.J. Hollowood, J.L. Miramontes and J. Sanchez Guillen |
hep-th/9311073 | 2D Ising Model with a Defect Line | We study the two-dimensional Ising model with a defect line and evaluate
multipoint energy correlation functions using non-perturbative
field-theoretical methods. We also discuss the evaluation of the two spin
correlator on the defect line. | 1993-11-11 | 2015-06-26 | [
"hep-th"
] | D.C.Cabra and C.M.Na\'on |
hep-th/9311068 | Particle Physics Models, Grand Unification, and Gravity in
Non-Commutative Geometry | We review the construction of particle physics models in the framework of
non-commutative geometry. We first give simple examples, and then progress to
outline the Connes-Lott construction of the standard Weinberg-Salam model and
our construction of the SO(10) model. We then discuss the analogue of the
Einstein-Hilbert... | 1993-11-11 | 2007-05-23 | [
"hep-th"
] | A.H. Chamseddine and J. Fr\"ohlich |
hep-th/9311071 | Covariant Quantization Of Green Schwarz Superstring | We describe a canonical covariant approach to the quantization of the
Green-Schwarz superstring. The approach is first applied to the canonical
covariant quantization of the Brink and Schwarz superparticle. The Kallosh
action is obtained in this case, with the correct BRST cohomology. | 1993-11-11 | 2007-05-23 | [
"hep-th"
] | A.Restuccia and J. Stephany |
hep-th/9311065 | Light-Cone Quantization of Gauge Fields | Light-cone quantization of gauge field theory is considered. With a careful
treatment of the relevant degrees of freedom and where they must be
initialized, the results obtained in equal-time quantization are recovered, in
particular the Mandelstam-Leibbrandt form of the gauge field propagator. Some
aspects of the ``di... | 1993-11-11 | 2010-11-01 | [
"hep-th"
] | Gary McCartor and David G. Robertson |
hep-th/9311070 | The (N,M)-th KdV hierarchy and the associated W algebra | We discuss a differential integrable hierarchy, which we call the (N, M)$--th
KdV hierarchy, whose Lax operator is obtained by properly adding $M$
pseudo--differential terms to the Lax operator of the N--th KdV hierarchy. This
new hierarchy contains both the higher KdV hierarchy and multi--field
representation of KP hi... | 1993-11-11 | 2009-10-22 | [
"hep-th"
] | L.Bonora and C.S.Xiong |
hep-th/9311069 | Quantum Groups | These notes correspond rather accurately to the translation of the lectures
given at the Fifth Mexican School of Particles and Fields, held in Guanajuato,
Gto., in December~1992. They constitute a brief and elementary introduction to
quantum symmetries from a physical point of view, along the lines of the
forthcoming b... | 1993-11-11 | 2015-06-26 | [
"hep-th",
"cond-mat",
"hep-ph",
"nlin.SI",
"solv-int"
] | M. Ruiz--Altaba |
hep-th/9311066 | Path Integral Approach to Two-Dimensional QCD in the Light-Front | Two-dimensional quantum cromodynamics in the light-front frame is studied
following hamiltonian methods. The theory is quantized using the path integral
formalism and an effective theory similar to the Nambu-Jona Lasinio model is
obtained. Confinement in two dimensions is derived analyzing directly the
constraints in t... | 1993-11-10 | 2009-10-22 | [
"hep-th"
] | P. Gaete, J. Gamboa and I. Schmidt |
hep-th/9311063 | Electric monopoles and the Montonen-Olive conjecture | We introduce a topological field theory with a Bogomol'nyi structure
permitting BPS electric, magnetic and dyonic monopoles. From the general
arguments given by Montonen and Olive the particle spectrum and mass compare
favourably with that of the intermediate vector bosons. In most, if not in all,
of its essential feat... | 1993-11-10 | 2007-05-23 | [
"hep-th"
] | M. Temple-Raston |
hep-th/9311061 | Large Quantum Poincare Subgroup of q-Conformal Group and q-Minkowski
Geometry | We construct quantum deformation of Poincar\'e group using as a starting
point $SU(2,2)$ conformal group and twistor-like definition of the Minkowski
space. We obtain quantum deformation of $SU(2,2)$ as a real form of
multiparametric $GL(4,C)_{q_{ij},r}$. It is shown that Poincar\'e subgroup
exists for special nonstand... | 1993-11-10 | 2007-05-23 | [
"hep-th"
] | M. Chaichian and A.P.Demichev |
hep-th/9311058 | Massive-Conformal Dictionary | The finite-volume spectrum of an integrable massive perturbation of a
rational conformal field theory interpolates between massive multi-particle
states in infinite volume (IR limit) and conformal states, which are approached
at zero volume (UV limit). Each state is labeled in the IR by a set of `Bethe
Ansatz quantum n... | 1993-11-10 | 2015-06-26 | [
"hep-th"
] | Ezer Melzer |
hep-th/9311062 | On a `universal' class of WZW-type conformal models | We consider a class of sigma models that appears from a generalisation of the
gauged WZW model parametrised by a constant matrix $Q$. Particular values of
$Q$ correspond to the standard gauged WZW models, chiral gauged WZW models and
a bosonised version of the non-abelian Thirring model. The condition of
conformal inva... | 1993-11-10 | 2009-09-17 | [
"hep-th"
] | A.A.Tseytlin |
hep-th/9311056 | Monopole-Catalysed Baryon Decay: A Boundary Conformal Field Theory
Approach | Monopole-mediated baryon number violation, the Callan-Rubakov effect, is
reexamined using boundary conformal field theory techniques. It is shown that
the low-energy behaviour is described simply by free fermions with a
conformally invariant boundary condition at the dyon location. When the number
of fermion flavours i... | 1993-11-10 | 2009-10-22 | [
"hep-th",
"cond-mat"
] | Ian Affleck and Jacob Sagi |
hep-th/9311057 | No generalized statistics from dynamics in curved spacetime | We consider quon statistics in a dynamically evolving curved spacetime in
which prior to some initial time and subsequent to some later time is flat. By
considering the Bogoliubov transformations associated with gravitationally
induced particle creation, we find that the consistent evolution of the
generalized commutat... | 1993-11-10 | 2011-07-19 | [
"hep-th"
] | J.W.Goodison and D.J.Toms |
hep-th/9311064 | Yang-Mills Theory on a Cylinder Coupled to Point Particles | We study a model of quantum Yang-Mills theory with a finite number of gauge
invariant degrees of freedom. The gauge field has only a finite number of
degrees of freedom since we assume that space-time is a two dimensional
cylinder. We couple the gauge field to matter, modeled by either one or two
nonrelativistic point ... | 1993-11-10 | 2011-07-19 | [
"hep-th"
] | K.S.Gupta, R.J.Henderson, S.G.Rajeev and O.T.Turgut |
hep-th/9311060 | Dimensional Expansion for the Ising Limit of Quantum Field Theory | A recently-proposed technique, called the dimensional expansion, uses the
space-time dimension $D$ as an expansion parameter to extract nonperturbative
results in quantum field theory. Here we apply dimensional-expansion methods to
examine the Ising limit of a self-interacting scalar field theory. We compute
the first ... | 1993-11-10 | 2009-10-22 | [
"hep-th"
] | Carl M. Bender and Stefan Boettcher |
hep-th/9311059 | Supermembranes in 4 Dimensions | A non-parametric gauge for supermembranes is introduced which substantially
simplifies previous treatments and directly leads to the supersymmetric
extension of a Karman-Tsien gas. | 1993-11-10 | 2007-05-23 | [
"hep-th"
] | Jens Hoppe |
hep-th/9311054 | Topological gravity with exchange algebra | A topological gravity is obtained by twisting the effective $(2,0)$
super\-gravity. We show that this topological gravity has an infinite number of
BRST invariant quantities with conformal weight $0$. They are a tower of
OSp$(2,2)$ multiplets and satisfy the classical exchange algebra of OSp$(2,2)$.
We argue that these... | 1993-11-09 | 2009-10-22 | [
"hep-th"
] | S. Aoyama |
hep-th/9311052 | Liouville theory and special coadjoint Virasoro orbits | We describe the Hamiltonian reduction of the coajoint Kac-Moody orbits to the
Virasoro coajoint orbits explicitly in terms of the Lagrangian approach for the
Wess-Zumino-Novikov-Witten theory. While a relation of the coajoint Virasoro
orbit $Diff \; S^1 /SL(2,R)$ to the Liouville theory has been already studied
we anal... | 1993-11-09 | 2015-06-26 | [
"hep-th"
] | A.Gorsky and A.Johansen |
hep-th/9311049 | Where is the large radius limit? | By properly accounting for the invariance of a Calabi-Yau sigma-model under
shifts of the $B$-field by integral amounts (analagous to the $\theta$-angle in
QCD), we show that the moduli spaces of such sigma-models can often be enlarged
to include ``large radius limit'' points. In the simplest cases, there are
holomorph... | 1993-11-09 | 2008-02-03 | [
"hep-th",
"alg-geom",
"math.AG"
] | David R. Morrison |
hep-th/9311053 | Anyonic Construction of the $SL_{Q,s}(2)$ Algebra | Considering anyonic oscillators in a two-dimensional lattice, we realize the
quantum semi-group $sl_{(q,s)}(2)$ by means of a generalized Schwinger
construction. We find that the parameter $q$ of the algebra is connected to the
statistical parameter, whereas the $s$ parameter is related to a $s$-deformed
oscillator int... | 1993-11-09 | 2011-07-19 | [
"hep-th"
] | J.L. Matheus-Valle and M.R-Monteiro |
hep-th/9311051 | Universality of the universal R-matrix and applications to quantum
integrable systems | Results obtained by us are overviewed from a general set up. The universal
$R$-matrix is exploited to obtain various important relations and structures
involved in quantum group algebra, which are used subsequently for generating
different classes of quantum integrable systems through a systematic scheme.
This recovers... | 1993-11-09 | 2008-02-03 | [
"hep-th",
"nlin.SI",
"solv-int"
] | Anjan Kundu |
hep-th/9311050 | Anomaly Cancellation in 2+1 dimensions in the presence of a domainwall
mass | A Fermion in 2+1 dimensions, with a mass function which depends on one
spatial coordinate and passes through a zero ( a domain wall mass), is
considered. In this model, originally proposed by Callan and Harvey, the gauge
variation of the effective gauge action mainly consists of two terms. One comes
from the induced Ch... | 1993-11-09 | 2009-10-22 | [
"hep-th",
"hep-lat",
"hep-ph"
] | Shailesh Chandrasekharan |
hep-th/9311047 | Ward Identities of $W_{\infty}$ Symmetry in Liouville Theory coupled to
$c_M < 1$ Matter | We investigate the Ward identities of the $W_{\infty}$ symmetry in the
Liouville theory coupled to the $(p,q)$ conformal matter. The correlation
functions are defined by applying the analytic continuation procedure for the
matter sector as well as the Liouville one. We then find that the Ward
identities are equivalent ... | 1993-11-09 | 2009-10-22 | [
"hep-th"
] | Ken-ji Hamada |
hep-th/9311055 | Supersymmetry and Bogomol'nyi equations in the Abelian Higgs Model | The N=2 supersymmetric extension of the 2+1 dimensional Abelian Higgs model
is discussed. By analysing the resulting supercharge algebra, the connection
between supersymmetry and Bogomol'nyi equations is clarified. Analogous results
are presented when the model is considered in 2-dimensional (Euclidean) space. | 1993-11-09 | 2009-10-22 | [
"hep-th"
] | Jos\'e Edelstein, Carlos Nu\~nez and Fidel Schaposnik |
hep-th/9311045 | Supergravity in $2+\epsilon$ Dimensions | Supergravity theory in $2+\epsilon$ dimensions is studied. It is invariant
under supertransformations in 2 and 3 dimensions. One-loop divergence is
explicitly computed in the background field method and a nontrivial fixed point
is found. In quantizing the supergravity, a gauge fixing condition is devised
which explicit... | 1993-11-08 | 2015-06-26 | [
"hep-th"
] | S. Kojima, N. Sakai and Y. Tanii |
hep-th/9311046 | Critical O(N) - vector nonlinear sigma - models: A resume of their field
structure | The classification of quasi - primary fields is outlined. It is proved that
the only conserved quasi - primary currents are the energy - momentum tensor
and the O(N) - Noether currents. Derivation of all quasi - primary fields and
the resolution of degeneracy is sketched. Finally the limits d=2 and d=4 of the
space dim... | 1993-11-08 | 2009-09-25 | [
"hep-th"
] | Klaus Lang, Werner Ruehl |
hep-th/9311042 | Measuring Small Distances in N=2 Sigma Models | We analyze global aspects of the moduli space of K\"ahler forms for $N$=(2,2)
conformal $\sigma$-models. Using algebraic methods and mirror symmetry we study
extensions of the mathematical notion of length (as specified by a K\"ahler
structure) to conformal field theory and calculate the way in which lengths
change as ... | 1993-11-08 | 2011-07-19 | [
"hep-th",
"alg-geom",
"math.AG"
] | Paul S. Aspinwall, Brian R. Greene, and David R. Morrison |
hep-th/9311043 | Some Rules for Polydimensional Squeezing | The review of the following results of the Refs. \cite{Sem} - \cite{Ans} is
presented: For mixed state light of $N$-mode electromagnetic field described by
Wigner function which has generic Gaussian form the photon distribution
function is obtained and expressed expliciltly in terms of Hermite polynomials
of $2N$-varia... | 1993-11-08 | 2007-05-23 | [
"hep-th"
] | V.I. Man'ko |
hep-th/9311044 | Global counterpart of $k$-Poincare algebra and covariant wave functions | The global counterpart of $k$-Poincare algebra is considered. The induced
representations of this group are described. The explicit form of the covariant
wave functions in the `minimal' (in Weinberg's sense) case is given. | 1993-11-08 | 2015-06-26 | [
"hep-th"
] | P. Maslanka |
hep-th/9311048 | Singular Limits and String Solutions | It is shown that new leading ($\al'$) as well as all-order solutions of
String theory can be obtained by taking appropriate singular limits of the
known solutions. We give several leading order solutions for the bosonic as
well as the heterotic string. We then present all-order forms of the previously
known two dimensi... | 1993-11-08 | 2007-05-23 | [
"hep-th"
] | S. Pratik Khastgir and Alok Kumar |
hep-th/9311041 | Quantum Affine Lie Algebras, Casimir Invariants and Diagonalization of
the Braid Generator | Let $U_q(\hat{\cal G})$ be an infinite-dimensional quantum affine Lie
algebra. A family of central elements or Casimir invariants are constructed and
their eigenvalues computed in any integrable irreducible highest weight
representation. These eigenvalue formulae are shown to absolutely convergent
when the deformation ... | 1993-11-07 | 2009-10-22 | [
"hep-th",
"math.QA"
] | Mark D. Gould and Yao-Zhong Zhang |
hep-th/9311040 | Jackson Integral Representations for Solutions to the Quantized
Knizhnik-Zamolodchikov Equation | The quantized Knizhnik-Zamolodchikov equations associated with the
trigonometric R-matrix or the rational R-matrix of the A-type are considered.
Jackson integral representations for solutions of these equations are
described. Asymptotic solutions for a holonomic system of difference equations
are constructed. Relations... | 1993-11-06 | 2008-02-03 | [
"hep-th",
"math.QA"
] | Vitaly Tarasov and Alexander Varchenko |
hep-th/9311039 | Generalized Squeezed States from Generalized Coherent States | Both the coherent states and also the squeezed states of the harmonic
oscillator have long been understood from the three classical points of view:
the 1) displacement operator, 2) annihilation- (or ladder-) operator, and
minimum-uncertainty methods. For general systems, there is the same
understanding except for ladde... | 1993-11-06 | 2007-05-23 | [
"hep-th"
] | Michael Martin Nieto |
hep-th/9311035 | On an Equation Associated with the Contact Lie Algebras | On an equation associated with the contact Lie algebras/ Mikhail V. Saveliev/
In the framework of a Lie algebraic approach we study a nonlinear equation
associated with the contact Lie algebra ${\bf K}K_m$, that seems to be relavant
for some solvable models of field theory and gravity in higher dimensions.
LPTENS--93/4... | 1993-11-05 | 2007-05-23 | [
"hep-th"
] | Mikhail V. Saveliev |
hep-th/9311037 | High Energy Asymptotics of Multi--Colour QCD and Exactly Solvable
Lattice Models | The quantum inverse scattering method is applied to the solution of equations
for wave functions of compound states of $n$ reggeized gluons in the
multicolour QCD in a generalized leading logarithmic approximation. | 1993-11-05 | 2007-05-23 | [
"hep-th"
] | L.N. Lipatov |
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