Unnamed: 0 int64 0 18.1k | language stringclasses 4
values | creator stringlengths 2 137 | title stringlengths 2 217 | subject stringclasses 15
values | keyword stringlengths 10 597 | identifier stringlengths 82 244 | description stringlengths 2 2.3k | date stringlengths 14 14 |
|---|---|---|---|---|---|---|---|---|
17,700 | ['eng'] | ['Abdalla, Elcio', 'De Siqueira, A V'] | ['String inspired effective Lagrangian and Inflationary Universe'] | ['Particle Physics - Theory'] | ['string model', 'effective Lagrangian', 'postulated particle, graviton', 'postulated particle, dilaton', 'inflationary universe'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301109'] | ['We consider a string inspired effective Lagrangian for the graviton and dilaton, containing Einstein gravity at the zero slope limit. The numerical solution of the problem shows asymptotically an inflationary universe. The time is measured by the dilaton, as one expects. The result is independent of the introduction ... | ['2002-07-04'] |
17,701 | ['eng'] | ['Mukhi, S', 'Vafa, C'] | ['Two dimensional black-hole as a topological coset model of c=1 string theory'] | ['Particle Physics - Theory'] | ['string model', 'gravitation', 'dimension, 2', 'supersymmetry', 'phase space', 'correlation function', 'black hole', 'partition function', 'algebra, Becchi-Rouet-Stora', 'cohomology'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301083'] | ['We show that a special superconformal coset (with $\\hat c =3$) is equivalent to $c=1$ matter coupled to two dimensional gravity. This identification allows a direct computation of the correlation functions of the $c=1$ non-critical string to all genus, and at nonzero cosmological constant, directly from the continuu... | ['2002-07-04'] |
17,702 | ['eng'] | ['Nolasco, M', 'Reina, C'] | ['Topological Observables in Semiclassical Field Theories'] | ['Particle Physics - Theory'] | ['field theory, Euclidean', 'approximation, quasiclassical', 'fibre bundle', 'field theory, instanton', 'algebra, Becchi-Rouet-Stora', 'cohomology'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209096'] | ['We give a geometrical set up for the semiclassical approximation to euclidean field theories having families of minima (instantons) parametrized by suitable moduli spaces ${\\cal M}$. The standard examples are of course Yang-Mills theory and non-linear $\\sigma$-models. The relevant space here is a family of measure ... | ['2002-07-01'] |
17,703 | ['eng'] | ['Kobayashi, T', 'Uematsu, T'] | ["q-deformed conformal and Poincar{\\'e} algebras on quantum 4-spinors"] | ['Particle Physics - Theory'] | ['algebra, Poincare', 'algebra, conformal', 'quantum group', 'quantum space, SL(4)', 'algebra, SU(2,2)', 'spinor'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9210157'] | ["We investigate quantum deformation of conformal algebras by constructing the quantum space for $sl_q(4,C)$. The differential calculus on the quantum space and the action of the quantum generators are studied. We derive deformed $su(4)$ and $su(2,2)$ algebras from the deformed $sl(4)$ algebra using the quantum 4-spino... | ['2002-07-01'] |
17,704 | ['eng'] | ['Grant, J D E'] | ['Cosmic Strings and Chronology Protection'] | ['Particle Physics - Theory'] | ['astrophysics, string', 'tensor, energy-momentum', 'field theory, scalar', 'coupling, conformal', 'conformal, coupling', 'space-time', 'geometry, space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209102'] | ["A space consisting of two rapidly moving cosmic strings has recently been constructed by Gott that contains closed timelike curves. The global structure of this space is analysed and is found that, away from the strings, the space is identical to a generalised Misner space. The vacuum expectation value of the energy ... | ['2002-07-01'] |
17,705 | ['eng'] | ['Sharatchandra, H S'] | ['Bosonisation in any dimension'] | ['Particle Physics - Theory'] | ['lattice field theory', 'fermion', 'dimension, 2', 'bosonization', 'Ising model', 'gauge field theory, Z(2)', 'Chern-Simons term'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301130'] | ['The mechanism underlying any bosonisation or fermionisation is exposed.It is shown that any local theory of fermions on a lattice in any spatial dimension greater than one is equivalent to a local theory of Ising spins coupled to a $Z_{2}$ gauge field.There is a close relation to the description of anyons using a Che... | ['2002-07-04'] |
17,706 | ['eng'] | [] | ['Quantum Group Symmetries in Conformal Field Theory'] | ['Particle Physics - Theory'] | ['talk', 'field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'hidden symmetry', 'quantum group, representation', 'algebra, Kac-Moody', 'algebra, cohomology'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9210100'] | ['Quantum groups play the role of hidden symmetries of some two-dimensional field theories. We discuss how they appear in this role in the Wess-Zumino-Witten model of conformal field theory.'] | ['2002-07-01'] |
17,707 | ['eng'] | ['Campbell, Bruce A', 'Kaloper, N', 'Madden, R', 'Olive, Keith A'] | ['Physical Properties of Four Dimensional Superstring Gravity Black Hole Solutions'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'effective action', 'field equations, solution', 'black hole', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301129'] | ["We consider the physical properties of four dimensional black hole solutions to the effective action describing the low energy dynamics of the gravitational sector of heterotic superstring theory. We compare the properties of the external field strengths in the perturbative solution to the full $O(\\alpha')$ string e... | ['2002-07-04'] |
17,708 | ['eng'] | ['Dayi, O F'] | ['BFV--BRST Analysis of the Classical and Quantum q-deformations of the sl(2) Algebra'] | ['Particle Physics - Theory'] | ['quantum algebra, SL(2)', 'algebra, deformation', 'charge, Becchi-Rouet-Stora', 'phase space', 'algebra, cohomology', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301126'] | ["BFV--BRST charge for q-deformed algebras is not unique. Different constructions of it in the classical as well as in the quantum phase space for the $q$-deformed algebra sl_q(2) are discussed. Moreover, deformation of the phase space without deforming the generators of sl(2) is considered. $\\hbar$-q-deformation of t... | ['2002-07-04'] |
17,709 | ['eng'] | ['Govindarajan, T R', 'Shankar, R', 'Shaji, N', 'Sivakumar, M'] | ['O(3) Non-linear $\\sigma$ model with Hopf term and Higher spin theories'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'symmetry, SO(3)', 'dimension, 3', 'field theory, Hopf term', 'model, spin', 'spin, model', 'partition function', 'Wilson loop', 'correlation function', 'transformation, Lorentz', 'transformation, discrete'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301124'] | ['Following our earlier work we argue in detail for the equivalence of the nonlinear $\\sigma$ model with Hopf term at~$\\theta=\\pi/2s$ ~and an interacting spin-s theory. We give an ansatz for spin-s operators in the $\\sigma$ model and show the equivalence of the correlation functions.We also show the relation betwee... | ['2002-07-04'] |
17,710 | ['eng'] | ['De Jonghe, F', 'Siebelink, R', 'Troost, W'] | ['Hiding Anomalies'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'quantization', 'anomaly', 'gravitation, W(2)', 'perturbation theory, higher-order', 'regularization'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301122'] | ['Anomalies can be anticipated at the classical level without changing the classical cohomology, by introducing extra degrees of freedom. In the process, the anomaly does not quite disappear. We show that, in fact, it is shifted to new symmetries that come with the extra fields.'] | ['2002-07-04'] |
17,711 | ['eng'] | ['Ramgoolam, S'] | ['New Modular Hopf Algebras related to rational $k$ $\\widehat {sl(2)}$'] | ['Particle Physics - Theory'] | ['quantum group, SL(2)', 'algebra, Hopf', 'transformation, modular', 'R-matrix', 'S-matrix', 'algebra, fusion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301121'] | ["We show that the Hopf link invariants for an appropriate set of finite dimensional representations of $ U_q SL(2)$ are identical, up to overall normalisation, to the modular S matrix of Kac and Wakimoto for rational $k$ $\\widehat {sl(2)}$ representations. We use this observation to construct new modular Hopf algebra... | ['2002-07-04'] |
17,712 | ['eng'] | ['Selivanov, K G'] | ['Geometry and Physics on $w_{\\infty}$ Orbits'] | ['Particle Physics - Theory'] | ['space-time', 'dimension, 2', 'transformation, diffeomorphism', 'algebra, W(infinity)', 'gravitation', 'string model', 'central charge'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301128'] | ['We apply the coadjoint orbit technique to the group of area preserving diffeomorphisms (APD) of a 2D manifold, particularly to the APD of the semi-infinite cylinder which is identified with $w_{\\infty}$. The geometrical action obtained is relevant to both $w$ gravity and 2D turbulence. For the latter we describe the... | ['2002-07-04'] |
17,713 | ['eng'] | ['Depireux, D A', 'Mathieu, P'] | ['Integrable Supersymmetry Breaking Perturbations of N=1,2 Superconformal Minimal Models'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'supersymmetry, symmetry breaking', 'perturbation theory', 'Korteweg-de Vries equation', 'integrability'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301131'] | ['We display a new integrable perturbation for both N=1 and N=2 superconformal minimal models. These perturbations break supersymmetry explicitly. Their existence was expected on the basis of the classification of integrable perturbations of conformal field theories in terms of distinct classical KdV type hierarchies s... | ['2002-07-04'] |
17,714 | ['eng'] | ['El-Gradechi, A M'] | ['On the Supersymplectic Homogeneous Superspace Underlying the OSp(1/2) Coherent States'] | ['Particle Physics - Theory'] | ['supersymmetry, algebra', 'supersymmetry, superspace', 'superspace, symplectic', 'algebra, representation', 'coherent state', 'symmetry, OSp(1/2)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301132'] | ['In this work we extend Onofri and Perelomov\'s coherent states methods to the recently introduced $OSp(1/2)$ coherent states. These latter are shown to be parametrized by points of a supersymplectic supermanifold, namely the homogeneous superspace $OSp(1/2)/U(1)$, which is clearly identified with a supercoadjoint orb... | ['2002-07-04'] |
17,715 | ['eng'] | ['Boyanovsky, D'] | ['Quantum Spinodal Decomposition'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'critical phenomena', 'spin, density matrix', 'density matrix, spin', 'Hartree approximation, nonperturbative', 'perturbation theory', 'model, weak coupling', 'weak coupling, model', 'scaling', 'correlation, length'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301095'] | ['We study the process of spinodal decomposition in a scalar quantum field theory that is quenched from an equilibrium disordered initial state at $T_i > T_f$ to a final state at $T_f \\approx 0$. The process of formation and growth of correlated domains is studied in a Hartree approximation. We find an approximate sca... | ['2002-07-04'] |
17,716 | ['eng'] | ['Rao, S'] | ['An Anyon Primer'] | ['Particle Physics - Theory'] | ['lectures, Ahmedabad 1991/12/30', 'postulated particle, anyon', 'quantum mechanics', 'gauge field theory, U(1)', 'Chern-Simons term', 'dimension, 2', 'spin', 'partition function', 'mean field approximation', 'Hall effect', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209066'] | ['In this set of lectures, we give a pedagogical introduction to the subject of anyons. We discuss 1) basic concepts in anyon physics, 2) quantum mechanics of two anyon systems, 3) statistical mechanics of many anyon systems, 4) mean field approach to many anyon systems and anyon superconductivity, 5) anyons in field t... | ['2002-07-01'] |
17,717 | ['eng'] | ['Warner, N P'] | ['$N=2$ Supersymmetric Integrable Models and Topological Field Theories'] | ['Particle Physics - Theory'] | ['lectures', 'field theory, conformal', 'dimension, 2', 'field theory, topological', 'transformation, Becchi-Rouet-Stora', 'Landau-Ginzburg model, potential', 'integrability', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301088'] | ['These lectures review some of the basic properties of $N=2$ superconformal field theories and the corresponding topological field theories. One of my basic aims is to show how the techniques of topological field theory can be used to compute effective \\LG potentials for perturbed $N=2$ superconformal field theories.... | ['2002-07-04'] |
17,718 | ['eng'] | ['Lerda, A', 'Sciuto, S'] | ['Anyons and Quantum Groups'] | ['Particle Physics - Theory'] | ['postulated particle, anyon', 'model, oscillator', 'spin, statistics', 'statistics, spin', 'statistics, fractional', 'quantum group, SU(2)', 'quantum group, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301100'] | ['Anyonic oscillators with fractional statistics are built on a two-dimensional square lattice by means of a generalized Jordan-Wigner construction, and their deformed commutation relations are thoroughly discussed. Such anyonic oscillators, which are non-local objects that must not be confused with $q$-oscillators, ar... | ['2002-07-04'] |
17,719 | ['eng'] | ['Pinheiro, C', 'Oliveira-Pires, G'] | ['Extending the Barnes-Rivers Operators to D=3 Topological Gravity'] | ['Particle Physics - Theory'] | ['field theory, tensor', 'gravitation', 'mass, topological', 'topological, mass', 'any-dimensional', 'propagator', 'analytic properties'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212008'] | ['The spin-projector operators for symmetric rank-2 tensors are reassessed in connection with the issue of topologically massive gravity. The original proposal by Barnes and Rivers is generalised to account for D-dimensional Einstein gravity and 3-dimensional Chern-Simons massive gravitation.'] | ['2002-07-04'] |
17,720 | ['eng'] | ['Balachandran, A P', 'Bimonte, G', 'Teotonio-Sobrinho, P'] | ['Edge States in 4D and their 3D Groups and Fields'] | ['Particle Physics - Theory'] | ['gauge field theory, tensor', 'dimension, 4', 'dimension, 3', 'group theory, Kac-Moody', 'current algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301120'] | ['It is known that the Lagrangian for the edge states of a Chern-Simons theory describes a coadjoint orbit of a Kac-Moody (KM) group with its associated Kirillov symplectic form and group representation. It can also be obtained from a chiral sector of a nonchiral field theory. We study the edge states of the abelian $B... | ['2002-07-04'] |
17,721 | ['eng'] | ['Yu, F'] | ['Many Boson Realizations of Universal Nonlinear $W_{\\infty}$-Algebras'] | ['Particle Physics - Theory'] | ['algebra, W(infinity)', 'Kadomtsev-Petviashvili equation, hierarchy', 'algebra, Lie', 'Miura transformation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301053'] | ['An infinite number of free field realizations of the universal nonlinear $\\hat{W}_{\\infty}^{(N)}$ ($\\hat{W}_{1+\\infty}^{(N)}$) algebras, which are identical to the KP Hamiltonian structures, are obtained in terms of $p$ plus $q$ scalars of different signatures with $p-q=N$. They are generalizations of the Miura t... | ['2002-07-04'] |
17,722 | ['eng'] | ['Mathur, S D'] | ['Kinetic theory in curved space'] | ['Particle Physics - Theory'] | ['space-time', 'acceleration', 'quantization, 1', 'particle, production', 'production, particle', 'particle, relativistic', 'propagator, regularization', 'path integral', 'gravitation, effect', 'transformation, Becchi-Rouet-Stora'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301044'] | ["We study the real time formalism of non-equilibrium many-body theory, in a first quantised language. We argue that on quantising the relativistic scalar particle in spacetime with Minkowski signature, we should study both propagations $e^{i(p^2-m^2)\\tilde \\lambda}$ and $e^{-i(p^2-m^2)\\tilde \\lambda}$ on the parti... | ['2002-07-04'] |
17,723 | ['eng'] | ['Ardalan, Farhad'] | ['2D Black Holes and 2D Gravity'] | ['Particle Physics - Theory'] | ['talk', 'gravitation', 'dimension, 2', 'black hole', 'operator, vertex', 'field equations, Liouville', 'coset space, SL(2,R)/U(1)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301073'] | ['\\small The SL$(2,R)/U(1)$ coset model, with $U(1)$ an element of the third conjugacy class of $SL(2,R)$ subgroups, is considered. The resulting theory is seen to collapse to a one dimensional field theory of Liouville. Then the 2 dimensional black hole $SL(2,R)/U(1)$, with $U(1)$ a non-compact subgroup boosted by a ... | ['2002-07-04'] |
17,724 | ['eng'] | ['Johnson, C V'] | ['On Integrable c<1 Open--Closed String Theory'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'matrix model', 'string model, open', 'string model, closed', 'constraint', 'symmetry, SL(N,C)', 'central charge, <1', 'integrability', 'correlation function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301112'] | ['The integrable structure of open--closed string theories in the $(p,q)$ conformal minimal model backgrounds is presented. The relation between the $\\tau$--function of the closed string theory and that of the open--closed string theory is uncovered. The resulting description of the open--closed string theory is shown... | ['2002-07-04'] |
17,725 | ['eng'] | ['Bonini, M', "D'Attanasio, M", 'Marchesini, G'] | ['Perturbative renormalization and infrared finiteness in the Wilson renormalization group'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'field theory, massless', 'massless, field theory', 'infrared problem', 'perturbation theory, higher-order', 'renormalization group'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301114'] | ["A new proof of perturbative renormalizability and infrared finiteness for a scalar massless theory is obtained from a formulation of renormalized field theory based on the Wilson renormalization group. The loop expansion of the renormalized Green functions is deduced from the Polchinski equation of renormalization gr... | ['2002-07-04'] |
17,726 | ['eng'] | ['Kellendonk, J', 'R"osgen, M', 'Varnhagen, R'] | ['Path Spaces and W-Fusion in Minimal Models'] | ['Particle Physics - Theory'] | ['statistical mechanics', 'algebra, Virasoro', 'algebra, representation', 'loop space', 'linear spaces, Hilbert space', 'algebra, W(N)', 'algebra, fusion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301086'] | ['Product forms of characters of Virasoro minimal models are obtained which factorize into $(2,\\odd)\\times(3,\\even)$ characters. These are related by generalized Rogers-Ramanujan identities to sum forms allowing for a quasiparticle interpretation. The corresponding dilogarithm identities are given and the factorizat... | ['2002-07-04'] |
17,727 | ['eng'] | ['Panda, S', 'Roy, S'] | ['On the Symmetry Algebra of the Discrete States in $d<2$ Closed String Theory'] | ['Particle Physics - Theory'] | ['string model, closed', 'dimension, <2', 'charge, conservation law', 'operator, algebra', 'phase space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301085'] | ['The Symmetry charges associated with the Lian-Zuckerman states for $d<2$ closed string theory are constructed. Unlike in the open string case, it is shown here that the symmetry charges commute among themselves and act trivially on all the physical states.'] | ['2002-07-04'] |
17,728 | ['eng'] | ['Chaudhuri, S', 'Minic, D'] | ['On the Black Hole Background of Two-Dimensional String Theory'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 2', 'background field', 'black hole', 'field equations, solution'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301105'] | ['The classical black hole background of two-dimensional string theory is examined after including the effect of the tachyon field. Keeping all terms upto $O(T^2)$, and making no other approximations, the only consistent classical solution to the resulting dilaton-graviton theory is found to be flat spacetime with a no... | ['2002-07-04'] |
17,729 | ['eng'] | ['Alfaro, J', 'Damgaard, P H'] | ['Origin of Antifields in the Batalin-Vilkovisky Lagrangian Formalism'] | ['Particle Physics - Theory'] | ['quantization, constraint', 'Hamiltonian formalism', 'partition function', 'gauge field theory, Yang-Mills', 'transformation, gauge', 'algebra, Becchi-Rouet-Stora', 'ghost', 'field theory, collective', 'field theory, antifield'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301103'] | ['The antifields of the Batalin-Vilkovisky Lagrangian quantization are standard antighosts of certain collective fields. These collective fields ensure that Schwinger-Dyson equations are satisfied as a consequence of the gauge symmetry algebra. The associated antibracket and its canonical structure appear naturally if ... | ['2002-07-04'] |
17,730 | ['eng'] | ['Lee, K'] | ['The Dual Formulation of Cosmic Strings and Vortices'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'path integral', 'string model', 'duality', 'field theory, tensor', 'postulated particle, axion', 'postulated particle, magnetic monopole'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301102'] | ['We study four dimensional systems of global, axionic and local strings. By using the path integral formalism, we derive the dual formulation of these systems, where Goldstone bosons, axions and missive vector bosons are described by antisymmetric tensor fields, and strings appear as a source for these tensor fields. ... | ['2002-07-04'] |
17,731 | ['eng'] | ['Abdalla, Elcio', 'Abdalla, Maria Christina B', 'Branco, O H G', 'Saltini, L E'] | ['Current Algebra of Super WZNW Models'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'supersymmetry', 'current algebra', 'algebra, Kac-Moody'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301108'] | ['We derive the current algebra of supersymmetric principal chiral models with a Wess-Zumino term. At the critical point one obtains two commuting super Kac-Moody algebra as expected, but in general there are intertwining fields connecting both right and left sectors, analogously to the bosonic case. Moreover, in the p... | ['2002-07-04'] |
17,732 | ['eng'] | ['Engberg, N', 'Nilsson, B E W', 'Sundell, P'] | ['An Algorithm for Computing Four-Ramond Vertices at Arbitrary Level'] | ['Particle Physics - Theory'] | ['string model', 'operator, vertex', 'scattering amplitude', 'analytic properties'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301107'] | ['We perform the sewing of two (dual) Ramond reggeon vertices and derive an algorithm by means of which the so obtained four-Ramond reggeon vertex may be explicitly computed at arbitrary oscillator (mass) level. A closed form of the four-vertex is then deduced on the basis of a comparison to all terms obtained by sewin... | ['2002-07-04'] |
17,733 | ['eng'] | ['Elizalde, E', 'Naftulin, S', 'Odintsov, S D'] | ['Convenient Versus Unique Effective Action Formalism in 2D Dilaton-Maxwell Quantum Gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'gauge field theory, U(1)', 'gauge field theory, Yang-Mills', 'field theory, dilaton', 'dimension, 2', 'effective action', 'perturbation theory, higher-order', 'dependence, gauge'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301106'] | ['The structure of one-loop divergences of two-dimensional dilaton-Maxwell quantum gravity is investigated in two formalisms: one using a convenient effective action and the other a unique effective action. The one-loop divergences (including surface divergences) of the convenient effective action are calculated in thr... | ['2002-07-04'] |
17,734 | ['eng'] | ['Lashkevich, M Y'] | ['Superconformal 2D Minimal Models and an Unusual Coset Construction'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'coset space', 'supersymmetry', 'operator product expansion', 'operator, vertex', 'quantum group'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301093'] | ['We consider a coset construction of minimal models. We define it rigorously and prove that it gives superconformal minimal models. This construction allows to build all primary fields of superconformal models and to calculate their three-point correlation functions.'] | ['2002-07-04'] |
17,735 | ['eng'] | ['Lu, H', 'Pope, C N', 'Schrans, S', 'Wang, X J'] | ['On the Spectrum and Scattering of W_3 Strings'] | ['Particle Physics - Theory'] | ['string model', 'symmetry, W(3)', 'operator, Becchi-Rouet-Stora', 'ghost', 'phase space', 'scattering amplitude'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301099'] | ['We present a detailed investigation of scattering processes in $W_3$ string theory. We discover further physical states with continuous momentum, which involve excitations of the ghosts as well as the matter, and use them to gain a better understanding of the interacting theory. The scattering amplitudes display fact... | ['2002-07-04'] |
17,736 | ['eng'] | ['Maggiore, Michele'] | ['A Generalized Uncertainty Principle in Quantum Gravity'] | ['Particle Physics - Theory'] | ['quantum gravity, uncertainty relations', 'black hole', 'string model', 'fundamental constant, length'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301067'] | ['We discuss a Gedanken experiment for the measurement of the area of the apparent horizon of a black hole in quantum gravity. Using rather general and model-independent considerations we find a generalized uncertainty principle which agrees with a similar result obtained in the framework of string theories. The result... | ['2002-07-04'] |
17,737 | ['eng'] | ['Broda, B'] | ['Chern-Simons approach to three-manifold invariants'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'Chern-Simons term', 'dimension, 3', 'partition function', 'Wilson loop', 'field theory, topological', 'group theory', 'quantum group, SU(2)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301091'] | ['% A new, formal, non-combinatorial approach to invariants of % three-dimensional manifolds of Reshetikhin, Turaev and % Witten in the framework of non-perturbative topological % quantum Chern-Simons theory, corresponding to an arbitrary % compact simple Lie group, is presented. A direct % implementation of surgery in... | ['2002-07-04'] |
17,738 | ['eng'] | ['Devchand, C', 'Leznov, A N'] | ['B\\"acklund transformation for supersymmetric self-dual theories for semisimple gauge groups and a hierarchy of $A_1$ solutions'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry, superspace', 'duality', 'Baecklund transformation', 'field equations, solution'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301098'] | ['We present a B\\"acklund transformation (a discrete symmetry transformation) for the self-duality equations for supersymmetric gauge theories in N-extended super-Minkowski space ${\\cal M}^{4|4N}$ for an arbitrary semisimple gauge group. For the case of an $A_1$ gauge algebra we integrate the transformation starting ... | ['2002-07-04'] |
17,739 | ['eng'] | ['Bailin, David', 'Love, A', 'Sabra, W A'] | ['Twisted Sector Yukawa Couplings For The ${\\bf Z}_M\\times {\\bf Z}_N$ Orbifolds'] | ['Particle Physics - Theory'] | ['string model', 'field theory, orbifold', 'symmetry, Z(M) x Z(N)', 'coupling, Yukawa', 'Yukawa, coupling'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301079'] | ['The moduli dependent Yukawa couplings between twisted sectors of ${\\bf Z}_M\\times {\\bf Z}_N$ Coxeter orbifolds are studied.'] | ['2002-07-04'] |
17,740 | ['eng'] | ['Bergeron, M', 'Eliezer, D', 'Semenoff, Gordon W'] | ['Canonical Chern-Simons Theory and the Braid Group on a Riemann Surface'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Chern-Simons term', 'dimension, 3', 'Hamiltonian formalism', 'Schroedinger equation, solution', 'wave function', 'Riemann surfaces', 'braid group'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301036'] | ['We find an explicit solution of the Schr\\"odinger equation for a Chern-Simons theory coupled to charged particles on a Riemann surface, when the coefficient of the Chern-Simons term is a rational number (rather than an integer) and where the total charge is zero. We find that the wave functions carry a projective re... | ['2002-07-04'] |
17,741 | ['eng'] | ['Ragoucy, E'] | ['Characteristic Dynkin diagrams and W-algebras'] | ['Particle Physics - Theory'] | ['algebra, Lie', 'algebra, W(N)', 'duality', 'algebra, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301011'] | ['We present a classification of characteristic Dynkin diagrams for the $A_N$, $B_N$, $C_N$ and $D_N$ algebras. This classification is related to the classification of \\cw(\\cg,\\ck) algebras arising from non-Abelian Toda models, and we argue that it can give new insight on the structure of $W$ algebras.'] | ['2002-07-04'] |
17,742 | ['eng'] | ['Ambjørn, Jan', 'Sedrakian, Ara G', 'Thorleifsson, G'] | ['The 3d Ising Model represented as Random Surfaces'] | ['Particle Physics - Theory'] | ['Ising model', 'dimension, 3', 'random surface', 'scaling', 'critical phenomena', 'numerical calculations, Monte Carlo'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212073'] | ['We consider a random surface representation of the three-dimensional Ising model.The model exhibit scaling behaviour and a new critical index $\\k$ which relates $\\g_{string}$ for the bosonic string to the exponent $\\a$ of the specific heat of the 3d Ising model is introduced. We try to determine $\\k$ by numerical... | ['2002-07-04'] |
17,743 | ['eng'] | ['Griffies, S', 'Soleng, H H'] | ['Non-Extreme and Ultra-Extreme Domain Walls and Their Global Space-Times'] | ['Particle Physics - Theory'] | ['domain wall', 'space-time, Minkowski', 'space-time, de Sitter', 'astrophysics', 'black hole', 'supersymmetry', 'energy, density', 'vacuum state, decay', 'decay, vacuum state'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212020'] | ['Non-extreme walls (bubbles with two insides) and ultra-extreme walls (bubbles of false vacuum decay) are discussed. Their respective energy densities are higher and lower than that of the corresponding extreme (supersymmetric), planar domain wall. These singularity free space-times exhibit non-trivial causal structur... | ['2002-07-04'] |
17,744 | ['eng'] | ['Arefieva, I Y'] | ['A Simple Model Inducing QCD'] | ['Particle Physics - Theory'] | ['gauge field theory, induced', 'field theory, scalar', 'lattice field theory', 'quantum chromodynamics', 'field theory, action', 'partition function', 'asymptotic freedom', 'approximation, weak coupling', 'weak coupling, approximation', 'approximation, strong coupling', 'strong coupling, approximation', 'approximation... | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301065'] | ['A simple lattice model inducing a gauge theory is considered. The model describes an interaction of a gauge field to an $N\\times N$ complex matrix scalar field transforming as a field in the fundamental representation. In contrast to the Kazakov-Migdal model the model contains only the linear interaction between sca... | ['2002-07-04'] |
17,745 | ['eng'] | ['González, J', 'Martín-Delgado, M A'] | ['Exact Finite Size Results on the Ising Model in 2D Curved Space'] | ['Particle Physics - Theory'] | ['Ising model', 'space-time, sphere', 'dimension, 2', 'partition function', 'scaling, finite size', 'critical phenomena', 'statistical mechanics', 'continuum limit'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301057'] | ['We propose an approach to statistical systems on lattices with sphere-like topology. Focusing on the Ising model, we consider the thermodynamic limit along a sequence of lattices which preserve the {\\em fixed} large scale geometry. The hypothesis of scaling appears to hold at criticality, pointing at a sensible defi... | ['2002-07-04'] |
17,746 | ['eng'] | ['Chen, W', 'Makeenko, Y M', 'Semenoff, Gordon W'] | ['Four-Fermion Theory and the Conformal Bootstrap'] | ['Particle Physics - Theory'] | ['four-fermion interaction, strong coupling', 'strong coupling, four-fermion interaction', 'renormalization group, fixed point', 'bootstrap, conformal', 'invariance, conformal', 'Dyson-Schwinger equation', 'vertex function', 'dimension, 3', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301069'] | ['We employ the conformal bootstrap to re-examine the problem of finding the critical behavior of four-Fermion theory at its strong coupling fixed point. Existence of a solution of the bootstrap equations indicates self-consistency of the assumption that, in space-time dimensions less than four, the renormalization gro... | ['2002-07-04'] |
17,747 | ['eng'] | ['Baez, J C'] | ['Link Invariants, Holonomy Algebras and Functional Integration'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'Chern-Simons term', 'dimension, 3', 'fibre bundle', 'Wilson loop', 'knot theory', 'path integral', 'phase space', 'operator, algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301063'] | ["Given a principal G-bundle over a smooth manifold M, with G a compact Lie group, and given a finite-dimensional unitary representation of G, one may define an algebra of functions on the space of connections modulo gauge transformations, the ``holonomy Banach algebra'' H_b, by completing an algebra generated by regul... | ['2002-07-04'] |
17,748 | ['eng'] | ['Brekke, L', 'Hughes, S J', 'Imbo, T D'] | ['Rings and Balls'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 3', 'dimension, 4', 'field equations, soliton', 'topology', 'knot theory'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301064'] | ["We examine the various linkings in space-time of ``ball-like'' and ``ring-like'' topological solitons in certain nonlinear sigma models in 2+1 and 3+1 dimensions. By going to theories where soliton overlaps are forbidden, these linkings become homotopically nontrivial and can be studied by investigating the topology ... | ['2002-07-04'] |
17,749 | ['eng'] | ['Niemi, Antti J', 'Tirkkonen, O'] | ['On Exact Evaluation of Path Integrals'] | ['Particle Physics - Theory'] | ['path integral', 'Hamiltonian formalism', 'loop space', 'differential forms, symplectic', 'supersymmetry, algebra', 'cohomology'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301059'] | ['Some mistakes have been corrected'] | ['2002-07-04'] |
17,750 | ['eng'] | ['Lahiri, A'] | ['Generating Vector Boson Masses'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2) x U(1)', 'electroweak interaction', 'intermediate boson, mass generation', 'mass generation, intermediate boson', 'symmetry breaking', 'potential, tensor'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301060'] | ['If the Higgs particle is never found, one will need an alternative theory for vector boson masses. I propose such a theory involving an antisymmetric tensor potential coupled to a gauge field.'] | ['2002-07-04'] |
17,751 | ['eng'] | ['Gross, David J', 'Taylor, W'] | ['Two Dimensional QCD is a String Theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'quantum chromodynamics', 'dimension, 2', 'Riemann surfaces', 'partition function', 'string model, closed', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301068'] | ['The partition function of two dimensional QCD on a Riemann surface of area $A$ is expanded as a power series in $1/N$ and $A$. It is shown that the coefficients of this expansion are precisely determined by a sum over maps from a two dimensional surface onto the two dimensional target space. Thus two dimensional QCD ... | ['2002-07-04'] |
17,752 | ['eng'] | ['Pullin, J'] | ['Knot theory and quantum gravity in loop space'] | ['Particle Physics - Theory'] | ['lectures', 'quantum gravity', 'relativity theory, general', 'quantization', 'knot theory, Jones polynomial', 'loop space', 'algebra, constraint', 'Chern-Simons term', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301028'] | ["These notes summarize the lectures delivered in the V Mexican School of Particle Physics, at the University of Guanajuato. We give a survey of the application of Ashtekar's variables to the quantization of General Relativity in four dimensions with special emphasis on the application of techniques of analytic knot th... | ['2002-07-04'] |
17,753 | ['eng'] | ['Dasnières de Veigy, A', 'Ouvry, S'] | ['Topological 2-Dimensional Quantum Mechanics'] | ['Particle Physics - Theory'] | ['quantum mechanics, topological', 'dimension, 2', 'Chern-Simons term', 'postulated particle, anyon', 'many-body problem', 'flux tube', 'space-time'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301078'] | ['We define a Chern- Simons Lagrangian for a system of planar particles topologically interacting at a distance. The anyon model appears as a particular case where all the particles are identical. We propose exact N-body eigenstates, set up a perturbative algorithm, discuss the case where some particles are fixed on a ... | ['2002-07-04'] |
17,754 | ['eng'] | ['Dargis, P', 'Mathieu, P'] | ['Nonlocal conservation laws in N=1,2 Supersymetric KdV equation'] | ['Particle Physics - Theory'] | ['Korteweg-de Vries equation', 'supersymmetry', 'conservation law, nonlocal', 'operator, Lax', 'integrability'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301080'] | ['The \\nl \\cls for the N=1 supersymmetric KdV equation are shown to be related in a simple way to powers of the fourth root of its Lax operator. This provides a direct link between the supersymmetry invariance and the existence of \\nl conservation laws. It is also shown that nonlocal conservation laws exist for the ... | ['2002-07-04'] |
17,755 | ['eng'] | ['Arefieva, I Y'] | ['Large-N Quenching in the Kazakov-Migdal Model'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'lattice field theory, Kazakov-Migdal model', 'approximation, quenching', 'approximation, weak coupling', 'weak coupling, approximation', 'critical phenomena', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301081'] | ['To study the behavior of the Kazakov-Migdal at large N the quenched momentum prescription with constraints for treating the large N limit of gauge theories is used. It is noted that it leads to a quartic dependence of an action on unitary matrix instead of a quadratic dependence discussed in previous considerations. ... | ['2002-07-04'] |
17,756 | ['eng'] | ['Tonin, M'] | ['Twistor-Like Formulation of Heterotic Strings'] | ['Particle Physics - Theory'] | ['talk, Bardonecchia 1992/09/01', 'string model, heterotic', 'dimension, >=3', 'field theory, action', 'spinor', 'twistor', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301055'] | ['In this talk new formulations of the Green--Schwarz heterotic strings in $D$ dimensions that involve commuting spinors, are reviewed. These models are invariant under $n$--extended, world sheet supersymmetry as well as under $N=1$, target space supersymmetry where $n\\leq D-2$ and $D=3,4,6,10$. The world sheet supers... | ['2002-07-04'] |
17,757 | ['eng'] | ['Fayyazuddin, A'] | ['On the origin of multi-component anyon wave functions'] | ['Particle Physics - Theory'] | ['postulated particle, anyon', 'anyon, wave function', 'Chern-Simons term', 'gauge field theory, torus', 'matter, nonrelativistic', 'transformation, gauge', 'Hamiltonian formalism', 'vacuum state', 'quantization', 'Schroedinger equation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301041'] | ['In this paper I discuss how the component structure of anyon wave functions arises in theories with non-relativistic matter coupled to a Chern-Simons gauge field on the torus. It is shown that there exists a singular gauge transformation which brings the Hamiltonian to free form. The gauge transformation removes a de... | ['2002-07-04'] |
17,758 | ['eng'] | ['Mokhov, O'] | ['Nonlinear Sigma Models and Symplectic Geometry on Loop Spaces of (Pseudo)Riemannian Manifolds'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 2', 'loop space', 'differential geometry, symplectic', 'differential forms', 'torsion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301048'] | ['In this paper we consider symplectic and Hamiltonian structures of systems generated by actions of sigma-model type and show that these systems are naturally connected with specific symplectic geometry on loop spaces of Riemannian and (pseudo)Riemannian manifolds.'] | ['2002-07-04'] |
17,759 | ['eng'] | ['Devi, P R', 'Govindarajan, T R', 'Kaul, R K'] | ['Three Dimensional Chern-Simons Theory as a Theory of Knots and Links; 3, Compact Semi-simple Group'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'Chern-Simons term', 'dimension, 3', 'braid group', 'knot theory'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212110'] | ['Chern-Simons field theory based on a compact non-abelian gauge group is studied as a theory of knots and links in three dimensions. A method to obtain the invariants for links made from braids of upto four strands is developed. This generalizes our earlier work on $SU(2)$ Chern-Simons theory.'] | ['2002-07-04'] |
17,760 | ['eng'] | ['Sakamoto, M'] | ['Topological Aspects of an Antisymmetric Background Field on Orbifolds'] | ['Particle Physics - Theory'] | ['string model, spontaneous compactification', 'field theory, orbifold', 'field theory, tensor', 'background field', 'quantization', 'anomaly', 'phase space', 'Aharonov-Bohm effect', 'invariance, modular'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301054'] | ['We study string theory on orbifolds in the presence of an antisymmetric constant background field in detail and discuss some of new aspects of the theory. It is pointed out that the term with the antisymmetric background field can be regarded as a topological term like a Chern-Simons term or a Wess-Zumino term. Detai... | ['2002-07-04'] |
17,761 | ['eng'] | ['Chou, C', 'Nair, V P', 'Polychronakos, A P'] | ['On the Electromagnetic Interactions of Anyons'] | ['Particle Physics - Theory'] | ['postulated particle, anyon', 'charged particle, anyon', 'electromagnetic interaction', 'group theory, Poincare', 'group theory, representation', 'coupling, minimal', 'minimal, coupling', 'anyon, wave function', 'coupling, minimal', 'minimal, coupling', 'spin, orbit', 'orbit, spin', 'Schroedinger equation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301037'] | ['Using the appropriate representation of the Poincare group and a definition of minimal coupling, we discuss some aspects of the electromagnetic interactions of charged anyons. In a nonrelativistic expansion, we derive a Schrodinger-type equation for the anyon wave function which includes spin-magnetic field and spin-... | ['2002-07-04'] |
17,762 | ['eng'] | ['Khuri, R R'] | ['A Comment on the Stability of String Monopoles'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'effective action', 'field equations, monopole', 'stability'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301035'] | ['In recent work a multimonopole solution of heterotic string theory was obtained. The monopoles are noted to be stable, in contrast with analogous solutions of Einstein-Maxwell or Yang-Mills-dilaton theory. The existence of this and other classes of stable solitonic solutions in string theory thus provides a possible ... | ['2002-07-04'] |
17,763 | ['eng'] | ['Zarembo, K'] | ['The Spatial Dynamics in Kazakov--Migdal Model'] | ['Particle Physics - Theory'] | ['lattice field theory, scalar', 'symmetry, SU(N)', 'gauge field theory, induced', 'field equations', 'Dyson-Schwinger equation', 'dispersion relations', 'potential', 'continuum limit', 'Kazakov-Migdal model', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301032'] | ['The spatially inhomogeneous large $N$ solutions to Kazakov--Migdal model are analyzed. The set of nonlinear differential equations is derived in the continuum limit. In one dimensional case these equations has a natural interpretation in terms of the dynamics of a Fermi gas. The multidimensional case seems to be inco... | ['2002-07-04'] |
17,764 | ['eng'] | ['Antoniadis, Ignatios', 'Taylor, T R'] | ['String loop corrections to gauge and Yukawa couplings'] | ['Particle Physics - Theory'] | ['talk, Batavia 1992/11/10', 'string model', 'supersymmetry', 'effective action', 'supergravity', 'anomaly', 'coupling, Yukawa', 'Yukawa, coupling', 'integrability', 'duality'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301033'] | ['We report on the recent progress in computing the effective supergravity action from superstring scattering amplitudes beyond the tree approximation. We discuss the moduli-dependent string loop corrections to gauge, gravitational and Yukawa couplings.'] | ['2002-07-04'] |
17,765 | ['eng'] | ['Tada, T', 'Uehara, S'] | ['On the Mass of Two Dimensional Quantum Black Hole'] | ['Particle Physics - Theory'] | ['talk', 'quantum gravity', 'dimension, 2', 'postulated particle, dilaton', 'black hole, mass', 'mass, black hole', 'model, shock waves'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301020'] | ['For the two dimensional dilaton-coupled quantum gravity model, we give the local black hole mass, which is an analogue of what was first introduced by Fischler, Morgan and Polchinski in the four dimensional gravitational systems. We analyze the original CGHS model with this local mass and find that the local mass is ... | ['2002-07-04'] |
17,766 | ['eng'] | ['Günaydin, M'] | ['Generalized Conformal and Superconformal Group Actions and Jordan Algebras'] | ['Particle Physics - Theory'] | ['group theory, conformal', 'any-dimensional', 'supersymmetry', 'algebra, Jordan', 'algebra, representation', 'algebra, oscillator'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301050'] | ['We study the conformal groups of Jordan algebras along the lines suggested by Kantor. They provide a natural generalization of the concept of conformal transformations that leave 2-angles invariant to spaces where "p-angles" can be defined. We give an oscillator realization of the generalized conformal groups of Jord... | ['2002-07-04'] |
17,767 | ['eng'] | ['Günaydin, M'] | ['N=4 Superconformal Algebras and Gauged WZW Models'] | ['Particle Physics - Theory'] | ['Wess-Zumino-Witten model', 'dimension, 2', 'gauge field theory', 'algebra, conformal', 'supersymmetry', 'algebra, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301049'] | ['As shown by Witten the N=1 supersymmetric gauged WZW model based on a group G has an extended N=2 supersymmetry if the gauged subgroup H is so chosen that G/H is Kahler. We extend Witten\'s result and prove that the N=1 supersymmetric gauged WZW models over G X U(1) are actually invariant under N=4 superconformal tra... | ['2002-07-04'] |
17,768 | ['eng'] | ['Bars, Itzhak', 'Sfetsos, K'] | ['Exact Effective Action and Spacetime Geometry in Gauged WZW Models'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'effective action', 'coset space', 'gauge field theory', 'field theory, axion', 'differential geometry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301047'] | ['We present an effective quantum action for the gauged WZW model $G_{-k}/H_{-k}$. It is conjectured that it is valid to all orders of the central extension $(-k)$ on the basis that it reproduces the exact spacetime geometry of the zero modes that was previously derived in the algebraic Hamiltonian formalism. Besides t... | ['2002-07-04'] |
17,769 | ['eng'] | ['Kedem, R', 'Klassen, T R', 'McCoy, B M', 'Melzer, E'] | ['Fermionic Sum Representations for Conformal Field Theory Characters'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'algebra, Virasoro', 'algebra, representation', 'fermion', 'thermodynamics, Bethe ansatz'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301046'] | ['We present sum representations for all characters of the unitary Virasoro minimal models. They can be viewed as fermionic companions of the Rocha-Caridi sum representations, the latter related to the (bosonic) Feigin-Fuchs-Felder construction. We also give fermionic representations for certain characters of the gener... | ['2002-07-04'] |
17,770 | ['eng'] | ['Donets, E E', 'Galtsov, D V'] | ['Stringy Sphalerons and Non-Abelian Black Holes'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'effective action', 'black hole, nonabelian', 'field equations, sphaleron', 'symmetry, rotational', 'symmetry, SU(2)', 'charge, dilaton', 'sum rule'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212153'] | ['Static spherically symmetric asymptotically flat particle-like and black hole solutions are constructed within the SU(2) sector of 4-dimensional heterotic string effective action. They separate topologically distinct Yang-Mills vacua and are qualitatively similar to the Einstein-Yang-Mills spha- lerons and non-abelia... | ['2002-07-04'] |
17,771 | ['eng'] | ['David, F'] | ['Non-Perturbative Effects in Matrix Models and Vacua of Two Dimensional Gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'matrix model', 'vacuum state, Theta parameter', 'partition function', 'effect, nonperturbative', 'effective potential', 'critical phenomena', 'field equations, solution', 'analytic properties', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212106'] | ['The most general large N eigenvalues distribution for the one matrix model is shown to consist of tree-like structures in the complex plane. For the m=2 critical point, such a split solution describes the strong coupling phase of 2d quantum gravity (c=0 non-critical string). It is obtained by taking combinations of c... | ['2002-07-04'] |
17,772 | ['eng'] | ['Arefieva, I Y', 'Medvedev, P B', 'Zubarev, A P'] | ['Interaction of d=2 c=1 Discrete States from String Field Theory'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 2', 'quantum gravity', 'coupling, matter', 'matter, coupling', 'central charge, 1', 'scattering amplitude', 'analytic properties', 'Ward identity', 'effective Lagrangian'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212156'] | ['Starting from string field theory for 2d gravity coupled to c=1 matter we analyze the off-shell tree amplitudes of discrete states. The amplitudes exhibit the pole structure and we use the off-shell calculus to extract the residues and prove that just the residues are constrained by the Ward Identities. The residues ... | ['2002-07-04'] |
17,773 | ['eng'] | ['Huang, Y Z', 'Lepowsky, J'] | ['Vertex operator algebras and operads'] | ['Particle Physics - Theory'] | ['operator, vertex', 'operator, algebra', 'algebra, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301009'] | ["Vertex operator algebras are mathematically rigorous objects corresponding to chiral algebras in conformal field theory. Operads are mathematical devices to describe operations, that is, $n$-ary operations for all $n$ greater than or equal to $0$, not just binary products. In this paper, a reformulation of the notion... | ['2002-07-04'] |
17,774 | ['eng'] | ['Aspinwall, Paul S', 'Greene, Brian R', 'Morrison, D R'] | ['Multiple Mirror Manifolds and Topology Change in String Theory'] | ['Particle Physics - Theory'] | ['string model', 'topology', 'sigma model, nonlinear', 'moduli space', 'field theory, conformal', 'symmetry, mirror', 'space-time, Calabi-Yau', 'n-point function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301043'] | ['We use mirror symmetry to establish the first concrete arena of spacetime topology change in string theory. In particular, we establish that the {\\it quantum theories\\/} based on certain nonlinear sigma models with topologically distinct target spaces can be smoothly connected even though classically a physical sin... | ['2002-07-04'] |
17,775 | ['eng'] | ['Frappat, L', 'Ragoucy, E', 'Sorba, Paul'] | ['Folding the W Algebras'] | ['Particle Physics - Theory'] | ['algebra, W(N)', 'algebra, fusion', 'model, Toda', 'Miura transformation', 'supersymmetry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301040'] | ['In the same way the folding of the Dynkin diagram of A_{2n} (resp. A_{2n-1}) produces the B_n (resp. C_n) Dynkin diagram, the symmetry algebra W of a Toda model based on B_n (resp. C_n) can be seen as resulting from the folding of a W-algebra based on A_{2n} (resp. A_{2n-1}). More generally, W algebras related to the... | ['2002-07-04'] |
17,776 | ['eng'] | ['Staudacher, M'] | ['Combinatorial Solution of the Two-Matrix Model'] | ['Particle Physics - Theory'] | ['matrix model, 2', 'Dyson-Schwinger equation, solution', 'duality', 'quantum gravity', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301038'] | ['We write down and solve a closed set of Schwinger-Dyson equations for the two-matrix model in the large $N$ limit. Our elementary method yields exact solutions for correlation functions involving angular degrees of freedom whose calculation was impossible with previously known techniques. The result sustains the hope... | ['2002-07-04'] |
17,777 | ['eng'] | ['Imbimbo, C'] | ['New modular representations and fusion algebras from quantized SL(2,R) Chern-Simons theory'] | ['Particle Physics - Theory'] | ['talk', 'gauge field theory, SL(2,R)', 'Chern-Simons term', 'dimension, 3', 'quantization', 'Hamiltonian formalism', 'field theory, conformal', 'dimension, 2', 'transformation, modular', 'algebra, fusion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301031'] | ["We consider the quantum-mechanical algebra of observables generated by canonical quantization of $SL(2,R)$ Chern-Simons theory with rational charge on a space manifold with torus topology. We produce modular representations generalizing the representations associated to the $SU(2)$ WZW models and we exhibit the expli... | ['2002-07-04'] |
17,778 | ['eng'] | ['Rivelles, V O'] | ['Topological Two Dimensional Dilaton Supergravity'] | ['Particle Physics - Theory'] | ['supergravity', 'field theory, dilaton', 'dimension, 2', 'gauge field theory, Poincare', 'field theory, topological', 'field theory, nonlocal'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301029'] | ["We present a topological version of two dimensional dilaton supergravity. It is obtained by gauging an extension of the super-Poincar\\'e algebra in two space-time dimensions. This algebra is obtained by an unconventional contraction of the super de Sitter algebra. Besides the generators of the super de Sitter algebr... | ['2002-07-04'] |
17,779 | ['eng'] | ['Delduc, F', 'Ivanov, E'] | ['$N=4$ super KdV equation'] | ['Particle Physics - Theory'] | ['Korteweg-de Vries equation', 'supersymmetry, superfield', 'algebra, conformal', 'symmetry, SU(2)', 'charge, conservation law', 'integrability'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301024'] | ['We construct $N=4$ supersymmetric KdV equation as a hamiltonian flow on the $N=4\\;SU(2)$ super Virasoro algebra. The $N=4$ KdV superfield, the hamiltonian and the related Poisson structure are concisely formulated in $1D \\;N=4$ harmonic superspace. The most general hamiltonian is shown to necessarily involve $SU(2)... | ['2002-07-04'] |
17,780 | ['eng'] | ['Li, M'] | ['A proposal on the topological sector of 2d string'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 2', 'field theory, tachyon', 'field theory, topological', 'gauge field theory, W(infinity)', 'field theory, dilaton', 'transformation, diffeomorphism', 'transformation, Becchi-Rouet-Stora', 'field equations, solution'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301022'] | ["The field content of the two dimensional string theory consists of the dynamical tachyon field and some nonpropagating fields which consist in the topological sector of this theory. We propose in this paper to study this topological sector as a spacetime gauge theory with a simple centrally extended $w_\\infty$ algeb... | ['2002-07-04'] |
17,781 | ['eng'] | ['Marino, E C'] | ['Quantum Electrodynamics of Particles on a Plane and the Chern-Simons Theory'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Chern-Simons term', 'charged particle', 'dimension, 2', 'dimension, 3', 'dimension, 4', 'constraint', 'effective action, induced', 'Theta parameter', 'Hall effect'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301034'] | ['We study the electrodynamics of generic charged particles (bosons, fermions, relativistic or not) constrained to move on an infinite plane. An effective gauge theory in 2+1 dimensional spacetime which describes the real electromagnetic interaction of this particles is obtained. The relationship between this effective... | ['2002-07-04'] |
17,782 | ['eng'] | ['Tanii, Y', 'Yamashita, M'] | ['Physical States in Two-Dimensional Topological Gauge Theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'Chern-Simons term', 'dimension, 3', 'dimensional reduction', 'dimension, 2', 'gauge field theory, topological', 'light cone gauge', 'transformation, Becchi-Rouet-Stora', 'phase space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301027'] | ['Physical states of two-dimensional topological gauge theories are studied using the BRST formalism in the light-cone gauge. All physical states are obtained for the abelian theory. There are an infinite number of physical states with different ghost numbers. Simple examples of physical states in a non-abelian theory ... | ['2002-07-04'] |
17,783 | ['eng'] | ['Gross, David J'] | ['Two Dimensional QCD as a String Theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'quantum chromodynamics', 'dimension, 2', 'string model', 'space-time', 'partition function', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212149'] | ['I explore the possibility of finding an equivalent string representation of two dimensional QCD. I develop the large N expansion of the ${\\rm QCD_2}$ partition function on an arbitrary two dimensional Euclidean manifold. If this is related to a two-dimensional string theory then many of the coefficients of the ${1\\... | ['2002-07-04'] |
17,784 | ['eng'] | ['Kuniba, A', 'Nakanishi, T', 'Suzuki, J'] | ['Characters in Conformal Field Theories from Thermodynamic Bethe Ansatz'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'algebra, Lie', 'algebra, representation', 'thermodynamics, Bethe ansatz'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301018'] | ['We propose a new $q$-series formula for a character of parafermion conformal field theories associated to arbitrary non-twisted affine Lie algebra $\\widehat{g}$. We show its natural origin from a thermodynamic Bethe ansatz analysis including chemical potentials.'] | ['2002-07-04'] |
17,785 | ['eng'] | ['Dhar, A', 'Mandal, G', 'Wadia, S R'] | ['Stringy Quantum Effects in 2-Dimensional Black-Hole'] | ['Particle Physics - Theory'] | ['black hole', 'dimension, 2', 'field theory, string', 'nonperturbative', 'postulated particle, tachyon', 'operator, tachyon', 'Wheeler-DeWitt equation', 'algebra, W(infinity)', 'fermion, phase space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9210120'] | ["We discuss the classical 2-dim. black-hole in the framework of the non-perturbative formulation (in terms of non-relativistic fermions) of c=1 string field theory. We identify an off-shell operator whose classical equation of motion is that of tachyon in the classical graviton-dilaton black-hole background. The black... | ['2002-07-01'] |
17,786 | ['eng'] | ['Spector, D'] | ['A simple method for computing soliton statistics'] | ['Particle Physics - Theory'] | ['field theory, soliton', 'supersymmetry', 'dimension, 3', 'spin, statistics', 'statistics, spin', 'Witten index'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301008'] | [] | ['2003-12-11'] |
17,787 | ['eng'] | ['David, F', 'Duplantier, B', 'Guitter, E'] | ['Renormalization of Crumpled Manifolds'] | ['Particle Physics - Theory'] | ['statistical mechanics', 'random surface', 'dimension, >0', 'dimension, <2', 'Hamiltonian formalism', 'partition function, measure', 'scattering amplitude, factorization', 'factorization, scattering amplitude', 'renormalization', 'analytic properties'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212102'] | ['We consider a model of D-dimensional tethered manifold interacting by excluded volume in R^d with a single point. By use of intrinsic distance geometry, we first provide a rigorous definition of the analytic continuation of its perturbative expansion for arbitrary D, 0 < D < 2. We then construct explicitly a renormal... | ['2002-07-04'] |
17,788 | ['eng'] | ['Henningson, M', 'Nappi, C R'] | ['Duality, Marginal Perturbations and Gauging'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 2', 'perturbation theory', 'duality, transformation', 'transformation, gauge'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301005'] | ['We study duality transformations for two-dimensional sigma models with abelian chiral isometries and prove that generic such transformations are equivalent to integrated marginal perturbations by bilinears in the chiral currents, thus confirming a recent conjecture by Hassan and Sen formulated in the context of Wess-... | ['2002-07-04'] |
17,789 | ['eng'] | ['Tseytlin, Arkady A'] | ['Effective action of gauged WZW model and exact string solutions'] | ['Particle Physics - Theory'] | ['string model', 'effective action', 'Wess-Zumino-Witten model', 'dimension, 2', 'field equations, solution', 'gauge field theory', 'coset space, SL(2,R)/U(1)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301015'] | ["We suggest how to derive the exact (all order in $\\a'$) expressions for the background fields for string solutions corresponding to gauged WZW models directly at the $2d$ field theory level. One is first to replace the classical gauged WZW action by the quantum effective one and then to integrate out the gauge field... | ['2002-07-04'] |
17,790 | ['eng'] | ['Demeterfi, K', 'Klebanov, Igor R'] | ['Light-cone approach to random surfaces embedded in two dimensions'] | ['Particle Physics - Theory'] | ['talk', 'matrix model', 'random surface', 'dimension, 2', 'string model', 'Schroedinger equation', 'light cone gauge', 'quantization', 'critical phenomena', 'field theory, tachyon', 'numerical calculations', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301006'] | ['We review the recently proposed \\lc\\ quantization of the matrix model which is expected to have a critical point describing 2-d quantum gravity coupled to $c=2$ matter. In the $N\\to\\infty$ limit, we derive a linear Schroedinger equation for the free string spectrum. Numerical study of this equation suggests that ... | ['2002-07-04'] |
17,791 | ['eng'] | ['Hlousek, Zvonimir T', 'Spector, D'] | ['Solitons and Instantons with(out) Supersymmetry'] | ['Particle Physics - Theory'] | ['field theory, soliton', 'field theory, instanton', 'any-dimensional', 'duality', 'energy, lower limit', 'charge, topological', 'central charge', 'supersymmetry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301014'] | ['We give model-independent arguments, valid in nearly any number of spacetime dimensions, that topological solitons and instantons satisfy Bogomol\'nyi-type bounds and, when these bounds are saturated, satisfy self-duality equations. In the supersymmetric case, we also show that, in spacetime dimensions greater than t... | ['2002-07-04'] |
17,792 | ['eng'] | ['Alvarez-Gaumé, Luís', 'Vázquez-Mozo, Miguel A'] | ['Topics in String Theory and Quantum Gravity'] | ['Particle Physics - Theory'] | ['lectures, Les Houches 1992/07/05', 'quantum gravity', 'supersymmetry', 'Kaluza-Klein model', 'field theory, Euclidean', 'field theory, classical', 'quantization', 'instanton', 'anomaly', 'spinor, any-dimensional', 'index theorem', 'string model, boson', 'string model, fermion', 'string model, heterotic', 'finite temp... | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212006'] | ["These are the lecture notes for the Les Houches Summer School on Quantum Gravity held in July 1992. The notes present some general critical assessment of other (non-string) approaches to quantum gravity, and a selected set of topics concerning what we have learned so far about the subject from string theory. Since th... | ['2002-07-04'] |
17,793 | ['eng'] | ['Balachandran, A P'] | ['Gauge Symmetries,Topology and Quantisation'] | ['Particle Physics - Theory'] | ['lectures, Trieste 1992/08/24', 'gauge field theory', 'invariance, gauge', 'field theory, action', 'Lagrangian formalism', 'field theory, constraint', 'Gauss law', 'quantization', 'Hall effect', 'Chern-Simons term', 'topology', 'spin, statistics', 'statistics, spin', 'boundary condition', 'fibre bundle'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9210111'] | ['The following two loosely connected sets of topics are reviewed in these lecture notes: 1) Gauge invariance, its treatment in field theories and its implications for internal symmetries and edge states such as those in the quantum Hall effect. 2) Quantisation on multiply connected spaces and a topological proof the s... | ['2002-07-01'] |
17,794 | ['eng'] | ['Savvidy, G K', 'Savvidy, G K'] | ['Gonihedric String and Asymptotic Freedom'] | ['Particle Physics - Theory'] | ['string model', 'asymptotic freedom', 'quark, confinement', 'string tension', 'path integral'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301001'] | ['Few natural basic principles allow to extend Feynman integral over the paths to an integral over the surfaces so, that they coincide at long time scale, that is when the surface degenerates into a single particle world line. In the first approximation the loop Green functions have perimeter behavior. That corresponds... | ['2002-07-04'] |
17,795 | ['eng'] | ['Przybycien, M B'] | ['A fifth order perturbative solution to the Gribov-Lipatov equation'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'electron, structure function', 'leading logarithm approximation', 'Lipatov equation', 'perturbation theory, higher-order', 'numerical calculations', '92 GeV'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9511029'] | ['Fifth order exact corrections to the non-singlet electron structure function in QED are the leading logarithmic approximation using the ad hoc exponentiation prescription proposed by Jadach and Ward and a recurence formula for the elements of the Jadach-Ward series. A comparison with existing third order solutions is... | ['1995-11-06'] |
17,796 | ['eng'] | ['Antoniadis, Ignatios', 'Mazur, P O', 'Mottola, E'] | ['Scaling behavior of quantum four-geometries'] | ['Particle Physics - Theory'] | ['quantum gravity', 'invariance, conformal', 'effective action', 'path integral, measure', 'scaling'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301002'] | ['We propose that large quantum fluctuations of the conformal factor drastically modify classical general relativity at cosmological distance scales, resulting in a scale invariant phase of quantum gravity in the far infrared. We derive scaling relations for the partition function and physical observables in this confo... | ['2002-07-04'] |
17,797 | ['eng'] | ['Balakrishna, B S'] | ['Difficulties in Inducing a Gauge Theory at Large N'] | ['Particle Physics - Theory'] | ['gauge field theory, induced', 'lattice field theory', 'effective action', 'Wilson loop', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212158'] | ['It is argued that the recently proposed Kazakov-Migdal model of induced gauge theory, at large $N$, involves only the zero area Wilson loops that are effectively trees in the gauge action induced by the scalars. This retains only a constant part of the gauge action excluding plaquettes or anything like them and the g... | ['2002-07-04'] |
17,798 | ['eng'] | ['Galperin, A', 'Ivanov, E', 'Ogievetsky, O V'] | ['Harmonic space and quaternionic manifolds'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry, superspace', 'duality', 'space-time, quaternion', 'sigma model, nonlinear', 'supergravity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212155'] | ['We find a principle of harmonic analyticity underlying the quaternionic (quaternion-K\\"ahler) geometry and solve the differential constraints which define this geometry. To this end the original $4n$-dimensional quaternionic manifold is extended to a bi-harmonic space. The latter includes additional harmonic coordin... | ['2002-07-04'] |
17,799 | ['eng'] | ['Boyanovsky, D', 'Lee, D S', 'Singh, A'] | ['Phase Transitions out of Equilibrium'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'model, weak coupling', 'weak coupling, model', 'critical phenomena', 'thermodynamics', 'Hartree approximation', 'statistical mechanics', 'correlation function', 'perturbation theory', 'numerical calculations', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212083'] | ['We study the dynamics of phase transitions out of equilibrium in weakly coupled scalar field theories. We consider the case in which there is a rapid supercooling from an initial symmetric phase in thermal equilibrium at temperature $T_i>T_c$ to a final state at low temperature $T_f \\approx 0$. In particular we stud... | ['2002-07-04'] |
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