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 |
|---|---|---|---|---|---|---|---|---|
17,600 | ['eng'] | ['Dasmahapatra, S'] | ['String Hypothesis and Characters of Coset CFTs'] | ['Particle Physics - Theory'] | ['string model', 'field theory, conformal', 'dimension, 2', 'ground state', 'coset space', 'algebra, Lie', 'algebra, affine'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305024'] | ['We present an algorithm for the construction of the branching functions in the vacuum sector for affine Lie algebras based on the string hypothesis solution to a system of Bethe equations for generalized RSOS models. We also mention how the ground state structure and features of the excitation spectra like the Brillo... | ['2002-07-08'] |
17,601 | ['eng'] | ['Gracey, J A'] | ['The Nambu-Jona-Lasinio Model at O(1/N^2)'] | ['Particle Physics - Theory'] | ['Jona-Lasinio-Nambu model', 'symmetry, U(1) x U(1)', 'symmetry, SU(N) x SU(M)', 'anomaly, conformal', 'propagator', 'Dyson-Schwinger equation', 'perturbation theory, higher-order', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305012'] | ['We write down the anomalous dimensions of the fields of the Nambu--Jona-Lasinio model or chiral Gross Neveu model with a continuous global chiral symmetry for the two cases $U(1)$ $\\times$ $U(1)$ and $SU(M)$ $\\times$ $SU(M)$ at $O(1/N^2)$ in a $1/N$ expansion.'] | ['2002-07-08'] |
17,602 | ['eng'] | ['Fuchs, J', 'Schweigert, C'] | ['Non-Hermitian Symmetric N=2 Coset Models, Poincare Polynomials, and String Compactification'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'supersymmetry', 'coset space', 'invariance, modular', 'ground state', 'string model, heterotic', 'spontaneous compactification'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304133'] | ['The field identification problem, including fixed point resolution, is solved for the non-hermitian symmetric $N=2$ superconformal coset theories. Thereby these models are finally identified as well-defined modular invariant CFTs. As an application, the theories are used as subtheories in tensor products with $c=9$, ... | ['2002-07-08'] |
17,603 | ['eng'] | ['Erler, J'] | ['Anomaly Cancellation in Six Dimensions'] | ['Particle Physics - Theory'] | ['dimension, 6', 'anomaly', 'space-time, Calabi-Yau', 'topology', 'supersymmetry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304104'] | ['I show that anomaly cancellation conditions are sufficient to determine the two most important topological numbers relevant for Calabi-Yau compactification to six dimensions. This reflects the fact that K3 is the only non-trivial CY manifold in two complex dimensions. I explicitly construct the Green-Schwarz countert... | ['2002-07-08'] |
17,604 | ['eng'] | ['Cabra, D C'] | ['Wess-Zumino-Witten model off criticality'] | ['Particle Physics - Theory'] | ['Wess-Zumino-Witten model', 'renormalization group, beta function', 'perturbation theory, higher-order'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304127'] | ["We study the renormalization group flow properties of the Wess-Zumino-Witten model in the region of couplings between $g^2=0$ and $g^2=4\\pi/k$, by evaluating the two-loop Zamolodchikov's $c$-function. We also discuss the region of negative couplings."] | ['2002-07-08'] |
17,605 | ['eng'] | ['Langmann, E'] | ['Cocycles for Boson and Fermion Bogoliubov Transformations'] | ['Particle Physics - Theory'] | ['Bogolyubov transformation', 'fermion, relativistic', 'boson, relativistic', 'charged particle', 'topology, algebra', 'linear spaces, Hilbert space', 'propagator', 'linear spaces, Fock space', 'current algebra', 'algebra, Lie', 'operator, algebra', 'quantization, 2'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305014'] | ['Unitarily implementable Bogoliubov transformations for charged, relativistic bos\\-ons and fermions are discussed, and explicit formulas for the 2-cocycles appearing in the group product of their implementers are derived. In the fermion case this provides a simple field theoretic derivation of the well-known cocycle ... | ['2002-07-08'] |
17,606 | ['eng'] | ['Giavarini, G', 'Martín, C P', 'Ruiz, F R'] | ['Physically meaningful and not so meaningful symmetries in Chern-Simons theory'] | ['Particle Physics - Theory', 'General Theoretical Physics'] | ['gauge field theory, SU(N)', 'Chern-Simons term', 'dimension, 3', 'Landau gauge', 'supersymmetry', 'renormalization, finite', 'Wilson loop', 'Ward identity', 'effective action', 'gauge field theory, SU(N)', 'Chern-Simons term', 'dimension, 3', 'Landau gauge', 'supersymmetry', 'renormalization, finite', 'Wilson loop', ... | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305021'] | ['We explicitly show that the Landau gauge supersymmetry of Chern-Simons theory does not have any physical significance. In fact, the difference between an effective action both BRS invariant and Landau supersymmetric and an effective action only BRS invariant is a finite field redefinition. Having established this, we... | ['1993-05-18'] |
17,607 | ['eng'] | ['Lu, J X'] | ['On the determination of the dilaton-antisymmetric tensor couplings in supergravity theories'] | ['Particle Physics - Theory'] | ['supergravity', 'field theory, dilaton', 'field theory, tensor', 'field theory, action', 'membrane model, p-brane'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305018'] | ['A new approach is provided to determine the dilaton--antisymmetric tensor coupling in a supergravity theory by considering the static supersymmetric field configuration around a super extended object, which is consistently formulated in a curved superspace. By this, the corresponding SUSY transformation rules can als... | ['2002-07-08'] |
17,608 | ['eng'] | ['Axelrod, S', 'Singer, I M'] | ['Chern--Simons Perturbation Theory II'] | ['Particle Physics - Theory'] | ['Chern-Simons term', 'dimension, 3', 'perturbation theory', 'propagator', 'Feynman graph', 'differential forms'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304087'] | ['In a previous paper [\\AS], we used superspace techniques to prove that perturbation theory (around a classical solution with no zero modes) for Chern--Simons quantum field theory on a general $3$-manifold $M$ is finite. We conjectured (and proved for the case of $2$-loops) that, after adding counterterms of the expe... | ['2002-07-08'] |
17,609 | ['eng'] | ['Bonora, L', 'Xiong, C S'] | ['Multi-field representations of KP hierarchies and multi-matrix models'] | ['Particle Physics - Theory'] | ['matrix model', 'Kadomtsev-Petviashvili equation, hierarchy', 'integrability', 'Hamiltonian formalism', 'differential equations, Lax', 'algebra, W(infinity)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305005'] | ['We discuss the integrable hierarchies that appear in multi--matrix models. They can be envisaged as multi--field representations of the KP hierarchy. We then study the possible reductions of this systems via the Dirac reduction method by suppressing successively one by one part of the fields. We find in this way new ... | ['2002-07-08'] |
17,610 | ['eng'] | ['Elmfors, P', 'Skagerstam, B S', 'Persson, D'] | ['QED effective action at finite temperature and density'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'effective action', 'finite temperature', 'magnetic field, external field', 'weak coupling', 'renormalization group'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305004'] | ['The QED effective action at finite temperature and density is calculated to all orders in an external homogeneous and time-independent magnetic field in the weak coupling limit. The free energy, obtained explicitly, exhibit the expected de\\ Haas -- van\\ Alphen oscillations. An effective coupling at finite temperatu... | ['2002-07-08'] |
17,611 | ['eng'] | ['Husain, V'] | ['Two dimensional general covariance from three dimensions'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1) x U(1)', 'field theory, scalar', 'space-time', 'dimension, 3', 'dimension, 2', 'quantization', 'Hamiltonian formalism', 'constraint'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305006'] | ['A 3d generally covariant field theory having some unusual properties is described. The theory has a degenerate 3-metric which effectively makes it a 2d field theory in disguise. For 2-manifolds without boundary, it has an infinite number of conserved charges that are associated with graphs in two dimensions and the P... | ['2002-07-08'] |
17,612 | ['eng'] | ['Castellani, L', 'Monteiro, M A'] | ['A note on quantum structure constants'] | ['Particle Physics - Theory'] | ['quantum group, representation', 'Yang-Baxter equation', 'R-matrix', 'differential forms'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304161'] | ['The Cartan-Maurer equations for any $q$-group of the $A_{n-1}, B_n, C_n, D_n$ series are given in a convenient form, which allows their direct computation and clarifies their connection with the $q=1$ case. These equations, defining the field strengths, are essential in the construction of $q$-deformed gauge theories... | ['2002-07-08'] |
17,613 | ['eng'] | ['Lu, J X'] | ['ADM masses for black strings and p-branes'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'string model', 'membrane model, p-brane', 'black hole', 'mass'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304159'] | ["An ADM mass formula is derived for a wide class of black solutions with certain spherical symmetry. By applying this formula, we calculate the ADM masses for recently discovered black strings and $p$-branes in diverse dimensions. By this, the Bogolmol'nyi equation can be shown to hold explicitly. A useful observation... | ['2002-07-08'] |
17,614 | ['eng'] | ['Ubriaco, M R'] | ['Quantum Group Schr\\"{o}dinger Field Theory'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'quantum group, deformation', 'lattice, nonlinear', 'field theory, deformation', 'Schroedinger equation', 'quantum group, SU(2)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305046'] | ['We show that a quantum deformation of quantum mechanics given in a previous work is equivalent to quantum mechanics on a nonlinear lattice with step size $\\Delta x=~(1-q)x$. Then, based on this, we develop the basic formalism of quantum group Schr\\"{o}dinger field theory in one spatial quantum dimension, and explic... | ['2002-07-08'] |
17,615 | ['eng'] | ['Stasheff, J'] | ['Closed string field theory, strong homotopy Lie algebras and the operad actions of moduli space'] | ['Particle Physics - Theory'] | ['talk, 1992/11/06', 'field theory, string', 'string, closed', 'moduli space', 'algebra, Lie', 'differential forms', 'operator, algebra', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304061'] | ["This is an expanded and updated version of a talk given at the Conference on Topics in Geometry and Physics at the University of Southern California, November 6, 1992. It is a survey talk, aimed at mathematicians AND physicists, which attempts to bring together the topics in the title without assuming much background... | ['2002-07-08'] |
17,616 | ['eng'] | ['Langmann, E'] | ['Fermion Current Algebras and Schwinger Terms in 3+1 Dimensions'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'gauge field theory, external field', 'fermion, current algebra', 'commutation relations', 'anomaly', 'Schwinger terms', 'operator, determinant', 'cohomology', 'algebra, representation', 'Bogolyubov transformation', 'linear spaces, Fock space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304114'] | ["We discuss the restricted linear group in infinite dimensions modeled by the Schatten class of rank $2p=4$ which contains $(3+1)$-dimensional analog of the loop groups and is closely related to Yang-Mills theory with fermions in $(3+1)$-dimensions. We give an alternative to the construction of the ``highest weight'' ... | ['2002-07-08'] |
17,617 | ['eng'] | ['Gannon, T', 'Ho Kim Quang'] | ['The Low Level Modular Invariant Partition Functions of Rank-Two Algebras'] | ['Particle Physics - Theory'] | ['algebra, affine', 'partition function', 'invariance, modular', 'duality, lattice', 'field theory, conformal'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304106'] | ['Using the self-dual lattice method, we make a systematic search for modular invariant partition functions of the affine algebras $g\\*{(1)}$ of $g=A_2$, $A_1+A_1$, $G_2$, and $C_2$. Unlike previous computer searches, this method is necessarily complete. We succeed in finding all physical invariants for $A_2$ at level... | ['2002-07-08'] |
17,618 | ['eng'] | ['Hori, T'] | ['A Bilocal Field Theory in Four Dimensions'] | ['Particle Physics - Theory'] | ['field theory, nonlocal', 'gauge field theory', 'Hamiltonian formalism', 'phase space', 'quantization', 'operator, algebra', 'algebra, Becchi-Rouet-Stora', 'algebra, cohomology'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304145'] | ['A bilocal field theory having M\\"{o}bius gauge invariance is proposed. In four dimensions there exists a zero momentum state of the first quantized model, which belongs to a non-trivial BRS cohomology class. A field theory lagrangian having a gauge invariance only in four dimensions is constructed.'] | ['2002-07-08'] |
17,619 | ['eng'] | ['Fring, A', 'Köberle, R'] | ['Factorized Scattering in the Presence of Reflecting Boundaries'] | ['Particle Physics - Theory'] | ['S-matrix, factorization', 'boundary condition', 'bootstrap', 'field theory, Toda', 'operator, algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304141'] | ['We formulate a general set of consistency requirements, which are expected to be satisfied by the scattering matrices in the presence of reflecting boundaries. In particular we derive an equivalent to the boostrap equation involving the W-matrix, which encodes the reflection of a particle off a wall. This set of equa... | ['2002-07-08'] |
17,620 | ['eng'] | ['Stern, A', 'Yakushin, I'] | ['Deformed Wong Particles'] | ['Particle Physics - Theory'] | ['particle, relativistic', 'gauge field theory, Yang-Mills', 'field equations, deformation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304137'] | ['By generalizing the Feynman proof of the Lorentz force law, recently reported by Dyson, we derive equations of motion for particles possessing internal degrees of freedom $I^a$ which do not, in general, generate a finite algebra. We obtain consistency criteria for fields which interact with such particles. It is argu... | ['2002-07-08'] |
17,621 | ['eng'] | ['Werner, R F'] | ["The Free Quon Gas Suffers Gibbs' Paradox"] | ['Particle Physics - Theory'] | ['quantization, 2', 'algebra, oscillator', 'algebra, deformation', 'postulated particle, quon', 'statistical mechanics', 'partition function', 'density matrix'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304120'] | ["We consider the Statistical Mechanics of systems of particles satisfying the $q$-commutation relations recently proposed by Greenberg and others. We show that although the commutation relations approach Bose (resp.\\ Fermi) relations for $q\\to1$ (resp.\\ $q\\to-1$), the partition functions of free gases are independ... | ['2002-07-08'] |
17,622 | ['eng'] | ['Gervais, Jean-Loup', 'Matsuo, Y'] | ['Light-Cone Parametrizations for K\\"Ahler Manifolds'] | ['Particle Physics - Theory'] | ['gravitation', 'dimension, 2', 'field theory, Kaehler', 'light cone gauge', 'gauge field theory, W(N)', 'differential geometry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304132'] | ['It is shown that, for any K\\"ahler manifold, there exist parametrizations such that the metric takes a block-form identical to the light-cone metric introduced by Polyakov for two-dimensional gravity. Besides its possible relevence for various aspects of K\\"ahlerian geometry, this fact allows us to change gauge in ... | ['2002-07-08'] |
17,623 | ['eng'] | ['Nilsson, B E W', 'Sundell, P'] | ['Gluing of Branched Surfaces by Sewing of Fermionic String Vertices'] | ['Particle Physics - Theory'] | ['string model', 'fermion, string', 'operator, vertex', 'correlation function', 'analytic properties'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304134'] | ['We glue together two branched spheres by sewing of two Ramond (dual) two-fermion string vertices and present a rigorous analytic derivation of the closed expression for the four-fermion string vertex. This method treats all oscillator levels collectively and the obtained answer verifies that the closed form of the fo... | ['2002-07-08'] |
17,624 | ['eng'] | ['Cohn, J D', 'Periwal, V'] | ['The Strength of String Nonperturbative Effects and Strong-Weak Coupling Duality'] | ['Particle Physics - Theory'] | ['string model', 'field equations', 'matrix model', 'perturbation theory', 'effect, nonperturbative', 'vacuum state', 'approximation, strong coupling', 'strong coupling, approximation', 'approximation, weak coupling', 'weak coupling, approximation', 'duality'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304129'] | ['A strong-weak coupling duality symmetry of the string equations of motion has been suggested in the literature. This symmetry implies that vacua occur in pairs. Since the coupling constant is a dynamical variable in string theory, tunneling solutions between strong and weak coupling vacua may exist. Such solutions wo... | ['2002-07-08'] |
17,625 | ['eng'] | ['Buchbinder, I L', 'Fradkin, E S', 'Lyakhovich, S L', 'Pershin, V D'] | ['Higher spins dynamics in the closed string theory'] | ['Particle Physics - Theory'] | ['string model, closed', 'field theory, action', 'spin, high', 'high, spin', 'sigma model', 'background field', 'field equations', 'renormalization', 'invariance, Weyl'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304131'] | ['The general $\\sigma$-model-type string action including both massless and massive higher spins background fields is suggested. Field equations for background fields are followed from the requirement of quantum Weyl invariance. It is shown that renormalization of the theory can be produced level by level. The detaile... | ['2002-07-08'] |
17,626 | ['eng'] | ['Kuznetsov, A N', 'Tkachov, Fyodor V', 'Vlasov, V V'] | ['Techniques of Distributions in Perturbative Quantum Field Theory; 1, Euclidean asymptotic operation for products of singular functions'] | ['Particle Physics - Theory'] | ['Feynman graph, higher-order', 'asymptotic expansion', 'renormalization', 'mathematical methods', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9612037'] | ['We present a systematic description of the mathematical techniques for studying multiloop Feynman diagrams which constitutes a full-fledged and inherently more powerful alternative to the BPHZ theory. The new techniques emerged as a formalization of the reasoning behind a recent series of record multiloop calculation... | ['1996-12-04'] |
17,627 | ['eng'] | ['Piran, T', 'Strominger, A'] | ['Numerical Analysis of Black Hole Evaporation'] | ['Particle Physics - Theory'] | ['quantum gravity', 'black hole, radiation', 'gravitation, dilaton', 'dimension, 2', 'differential equations', 'boundary condition', 'scattering, fermion black hole', 'fermion black hole, scattering', 'numerical calculations', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304148'] | ['Black hole formation/evaporation in two-dimensional dilaton gravity can be described, in the limit where the number $N$ of matter fields becomes large, by a set of second-order partial differential equations. In this paper we solve these equations numerically. It is shown that, contrary to some previous suggestions, ... | ['2002-07-08'] |
17,628 | ['eng'] | ['Polyakov, A M'] | ['A Few Projects in String Theory'] | ['Particle Physics - Theory'] | ['lectures', 'string model', 'dimension, 2', 'quantum gravity', 'sigma model, nonlinear', 'astrophysics', 'field theory, dilaton', 'inflationary universe', 'Ising model', 'dimension, 3', 'quantum chromodynamics', 'loop space', 'partition function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304146'] | ['In these lectures I discuss various unsolved problems of string theory and their relations to quantum gravity, 3d Ising model, large N QCD, and quantum cosmology. No solutions are presented but some new and perhaps useful approaches are suggested.'] | ['2002-07-08'] |
17,629 | ['eng'] | ['Dorey, P'] | ['A remark on the coupling-dependence in affine Toda field theories'] | ['Particle Physics - Theory', 'General Theoretical Physics'] | ['field theory, Toda', 'field theory, affine', 'dimension, 2', 'algebra, Lie', 'S-matrix', 'coupling constant, dependence', 'dependence, coupling constant', 'field theory, Toda', 'field theory, affine', 'dimension, 2', 'algebra, Lie', 'S-matrix', 'coupling constant, dependence', 'dependence, coupling constant'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304149', 'http://doc.cern.ch/cgi-bin/setlink?base=preprint&categ=cern&id=th-6873-93'] | ['The affine Toda field theories based on the non simply-laced Lie algebras are discussed. By rewriting the S-matrix formulae found by Delius et al, a universal form for the coupling-constant dependence of these models is obtained, and related to various general properties of the classical couplings. This is illustrate... | ['1993-05-07'] |
17,630 | ['eng'] | ['Smolinski, K A', 'Rembielinski, J'] | ['Non-commutative quantum dynamics'] | ['Particle Physics - Theory'] | ['quantum mechanics, deformation', 'geometry, noncommutative', 'model, oscillator'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304110'] | ['We described a $q$-deformation of a quantum dynamics in one dimension. We prove that there exists only one essential deforamtion of quantum dynamics.'] | ['2002-07-08'] |
17,631 | ['eng'] | ['Fehér, L', "O'Raifeartaigh, Lochlainn", 'Ruelle, P', 'Tsutsui, I'] | ['On the Completeness of the Set of Classical W-Algebras Obtained from DS Reductions'] | ['Particle Physics - Theory'] | ['algebra, W(N)', 'algebra, representation', 'algebra, Kac-Moody', 'algebra, affine', 'Hamiltonian formalism', 'transformation, gauge', 'field theory, conformal'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304125'] | ["We clarify the notion of the DS --- generalized Drinfeld-Sokolov --- reduction approach to classical ${\\cal W}$-algebras. We first strengthen an earlier theorem which showed that an $sl(2)$ embedding ${\\cal S}\\subset {\\cal G}$ can be associated to every DS reduction. We then use the fact that a $\\W$-algebra must... | ['2002-07-08'] |
17,632 | ['eng'] | ['Fan, J B', 'Yu, M'] | ['$G/G$ Gauged Supergroup Valued WZNW Field Theory'] | ['Particle Physics - Theory'] | ['talk', 'Wess-Zumino-Witten model', 'supersymmetry, superspace', 'group theory, OSp(1,2)', 'string model', 'Hamiltonian formalism', 'quantization', 'constraint', 'path integral', 'charge, Becchi-Rouet-Stora', 'operator, cohomology', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304123'] | ['The $G/G$ gauged supergroup valued WZNW theory is considered. It is shown that for $G=\\OSP$, the $G/G$ theory tensoring a ($b$, $c$, $\\beta$, $\\gamma$) system is equivalent to the non-critical fermionic theory. The relation between integral or half integral moded affine superalgebra and its reduced theory, the NS ... | ['2002-07-08'] |
17,633 | ['eng'] | ['Lu, H', 'Pope, C N', 'Wang, X J'] | ['On Higher-spin Generalisations of String Theory'] | ['Particle Physics - Theory'] | ['string model', 'gauge field theory, W(3)', 'operator, Becchi-Rouet-Stora', 'phase space', 'spin, high', 'high, spin', 'unitarity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304115'] | ['We construct BRST operators for certain higher-spin extensions of the Virasoro algebra, in which there is a spin-$s$ gauge field on the world sheet, as well as the spin-2 gauge field corrresponding to the two-dimensional metric. We use these BRST operators to study the physical states of the associated string theorie... | ['2002-07-08'] |
17,634 | ['eng'] | ['Anselmi, D', 'Billó, M', 'Fré, P', 'Girardello, L', 'Zaffaroni, A'] | ['ALE manifolds and Conformal Field Theory'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'sigma model, nonlinear', 'field theory, orbifold', 'coset space', 'operator product expansion', 'supersymmetry', 'bosonization', 'group theory, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304135'] | ['We address the problem of constructing the family of (4,4) theories associated with the sigma-model on a parametrized family ${\\cal M}_{\\zeta}$ of Asymptotically Locally Euclidean (ALE) manifolds. We rely on the ADE classification of these manifolds and on their construction as HyperK\\"ahler quotients, due to Kron... | ['2002-07-08'] |
17,635 | ['eng'] | ['Kazama, Y', 'Nicolai, Hermann C'] | ['On the Exact Operator Formalism of Two-Dimensional Liouville Quantum Gravity in Minkowski Spacetime'] | ['Particle Physics - Theory'] | ['quantum gravity', 'field theory, Liouville', 'dimension, 2', 'Hamiltonian formalism', 'tensor, energy-momentum', 'transformation, conformal', 'operator product expansion', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305023'] | ['A detailed reexamination is made of the exact operator formalism of two-dimensional Liouville quantum gravity in Minkowski spacetime with the cosmological term fully taken into account. Making use of the canonical mapping from the interacting Liouville field into a free field, we focus on the problem of how the Liouv... | ['2002-07-08'] |
17,636 | ['eng'] | ['Bailin, David', 'Love, A', 'Sabra, W A'] | ['Yukawa Couplings involving Excited Twisted Sector States for ${\\bf Z}_M\\times {\\bf Z}_N$ Orbifolds'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'spontaneous compactification', 'effective action', 'coupling, Yukawa', 'Yukawa, coupling', 'field theory, orbifold', 'symmetry, Z(N) x Z(M)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304066'] | ['A study is made for ${\\bf Z}_M\\times {\\bf Z}_N$ orbifolds of the modification of the form of the twisted sector Yukawa couplings when some of the states involved are excited twisted sectors rather than twisted sector ground states.'] | ['2002-07-08'] |
17,637 | ['eng'] | ['Kirsten, K', 'Cognola, G', 'Vanzo, L'] | ['Effective Lagrangian for self-interacting scalar field theories in curved spacetime'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'space-time', 'gravitation, background field', 'effective Lagrangian', 'perturbation theory, higher-order', 'regularization, zeta function', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304092'] | ['We consider a self-interacting scalar field theory in a slowly varying gravitational background field. Using zeta-function regularization and heat-kernel techniques, we derive the one-loop effective Lagrangian up to second order in the variation of the background field and up to quadratic terms in the curvature tenso... | ['2002-07-08'] |
17,638 | ['eng'] | ['Chaichian, Masud', 'Felipe, R G', 'Montonen, C'] | ['Statistics of Q-Oscillators, Quons and Relation to Fractional Satistics'] | ['Particle Physics - Theory'] | ['algebra, oscillator', 'algebra, deformation', 'postulated particle, anyon', 'n-point function', 'finite temperature', 'gas'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304111'] | ['The statistics of $q$-oscillators, quons and to some extent, of anyons are studied and the basic differences among these objects are pointed out. In particular, the statistical distributions for different bosonic and fermionic $q$-oscillators are found for their corresponding Fock space representations in the case wh... | ['2002-07-08'] |
17,639 | ['eng'] | ['Frau, M', 'Monteiro, M A', 'Sciuto, S'] | ['$q$-Deformed Classical Lie Algebras and their Anyonic Realization'] | ['Particle Physics - Theory'] | ['algebra, Lie', 'algebra, deformation', 'algebra, oscillator', 'algebra, representation', 'fermion', 'bosonization', 'postulated particle, anyon'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304108'] | ['All classical Lie algebras can be realized \\`a la Schwinger in terms of fermionic oscillators. We show that the same can be done for their $q$-deformed counterparts by simply replacing the fermionic oscillators with anyonic ones defined on a two dimensional lattice. The deformation parameter $q$ is a phase related t... | ['2002-07-08'] |
17,640 | ['eng'] | ['Schellekens, A N'] | ['Seventy Relatives of the Monster Module'] | ['Particle Physics - Theory'] | ['talk', 'field theory, conformal', 'dimension, 2', 'central charge, 24', 'partition function', 'invariance, modular', 'algebra, Kac-Moody', 'algebra, representation', 'group theory, finite'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304098'] | ['Recent work on the classification of conformal field theories with one primary field (the identity operator) is reviewed. The classification of such theories is an essential step in the program of classification of all rational conformal field theories, but appears impossible in general. The last managable case, cent... | ['2002-07-08'] |
17,641 | ['eng'] | ['Bialynicki-Birula, I'] | ['Dirac and Weyl Equations on a Lattice as Quantum Cellular Automata'] | ['Particle Physics - Theory'] | ['lattice field theory', 'Dirac equation', 'Weyl equation', 'Maxwell equation', 'particle, wave function', 'continuum limit', 'unitarity', 'symmetry, chiral', 'path integral', 'cellular automaton'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304070'] | ['A discretized time evolution of the wave function for a Dirac particle on a cubic lattice is represented by a very simple quantum cellular automaton. In each evolution step the updated value of the wave function at a given site depends only on the values at the nearest sites, the evolution is unitary and preserves ch... | ['2002-07-08'] |
17,642 | ['eng'] | ['Stoilov, M N', 'Zaikov, R P'] | ['A U(1) Current Algebra Model Coupled to 2D-Gravity'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'gauge field theory, Kac-Moody', 'symmetry, U(1)', 'gravitation', 'dimension, 2', 'Hamiltonian formalism', 'constraint'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304076'] | ['We consider a simple model of a scalar field with $U(1)$ current algebra gauge symmetry coupled to $2D$-gravity in order to clarify the origin of Stuckelberg symmetry in the $w_{\\infty}$-gravity theory. An analogous symmetry takes place in our model too. The possible central extension of the complete symmetry algebr... | ['2002-07-08'] |
17,643 | ['eng'] | ['Balakrishna, B S'] | ['Anomaly matching for the QCD string'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'anomaly, conformal', 'renormalization group, beta function', 'effect, instanton', 'path integral, measure', 'string model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304079'] | ['A criterion to be satisfied by a string theory of QCD is formulated in the ultraviolet regime. It arises from the trace anomaly of the QCD stress tensor computed using instantons. It is sensitive to asymptotic freedom. It appears to be related to the trace anomaly of the QCD string. Our current understanding of noncr... | ['2002-07-08'] |
17,644 | ['eng'] | ['Aratyn, H', 'Constantinidis, C P', 'Ferreira, L A', 'Gomes, J F', 'Zimerman, A H'] | ["Construction of Affine and Conformal Affine Toda Solitons by Hirota's Method"] | ['Particle Physics - Theory'] | ['talk', 'field theory, Toda', 'field theory, affine', 'dimension, 2', 'field equations, soliton', 'mass', 'charge', 'symmetry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304080'] | ["In this talk we report some results about the construction of soliton solutions for the Affine and Conformal Affine Toda models using the Hirota's method. We obtain new classes of solitons connected to the degeneracies of the Cartan matrix eigenvalues as well as to some particular features of the recursive scheme dev... | ['2002-07-08'] |
17,645 | ['eng'] | ['Behrndt, K'] | ['A Monopole Solution in open String Theory'] | ['Particle Physics - Theory'] | ['string model, open', 'string model, closed', 'Wess-Zumino-Witten model', 'symmetry, SU(2)', 'field theory, Liouville', 'invariance, Weyl', 'effective action', 'field equations, monopole'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304096'] | ['We investigate a solution of the Weyl invariance conditions in open string theory in 4 dimensions. In the closed string sector this solution is a combination of the SU(2) Wess--Zumino--Witten model and a Liouville theory. The investigation is carried out in the $\\sigma$ model approach where we have coupled all massl... | ['2002-07-08'] |
17,646 | ['eng'] | ['Grignani, G', 'Nardelli, G'] | ["Reply to `Comment on Gravity and the Poincare' Group'"] | ['Particle Physics - Theory'] | ['gravitation', 'gauge field theory, Poincare', 'Hamiltonian formalism', 'symmetry, nonlinear', 'dimension, 2'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304093'] | ["In the first order form, the model considered by Strobl presents, besides local Lorentz and diffeomorphism invariances, an additional local non-linear symmetry. When the model is realized as a Poincar\\'e gauge theory according to the procedure outlined in Refs.[1,2], the generators of the non-linear symmetry are res... | ['2002-07-08'] |
17,647 | ['eng'] | ['Elmfors, P', 'Umezawa, H'] | ['Generalizations of the thermal Bogoliubov transformation'] | ['Particle Physics - Theory'] | ['finite temperature', 'density matrix', 'Bogolyubov transformation', 'fermion', 'correlation function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304089'] | ['The thermal Bogoliubov transformation in thermo field dynamics is generalized in two respects. First, a generalization of the $\\alpha$--degree of freedom to tilde non--conserving representations is considered. Secondly, the usual $2\\times2$ Bogoliubov matrix is extended to a $4\\times4$ matrix including mixing of m... | ['2002-07-08'] |
17,648 | ['eng'] | ['Shirokura, H'] | ['Factorization in 2D String Theory'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 2', 'field theory, tachyon', 'correlation function, factorization', 'operator product expansion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304100'] | ['We show the factorization of correlation functions of tachyon operators in 2D string theory using the discretized approach of Moore. Our demonstration of the factorization is more general than that of the paper of Sakai and Tanii. We obtain the rules for the factorization of tachyon amplitudes. Our results can be und... | ['2002-07-08'] |
17,649 | ['eng'] | ['Hallin, J'] | ['QED(1+1) by Dirac Quantization'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'fermion', 'dimension, 2', 'space, sphere', 'quantization', 'Hamiltonian formalism'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304101'] | ['(some errors corrected, slightly extended)'] | ['2002-07-08'] |
17,650 | ['eng'] | ['Elizalde, E', 'Leseduarte, S', 'Odintsov, S D'] | ['Partition Functions for the Rigid String and Membrane at Any Temperature'] | ['Particle Physics - Theory'] | ['string model', 'membrane model, p-brane', 'finite temperature', 'partition function', 'regularization, zeta function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304071'] | ['Exact expressions for the partition functions of the rigid string and membrane at any temperature are obtained in terms of hypergeometric functions. By using zeta function regularization methods, the results are analytically continued and written as asymptotic sums of Riemann-Hurwitz zeta functions, which provide ver... | ['2002-07-08'] |
17,651 | ['eng'] | ['Kostov, Ivan K'] | ['Propagation of particles and strings in one-dimensional Universe'] | ['Particle Physics - Theory'] | ['talk, Corfu 1992/09/02', 'string model, closed', 'dimension, 1', 'excited state, string', 'potential, local', 'random walk', 'random surface', 'perturbation theory, higher-order', 'propagator, string', 'field theory, string', 'loop space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304069'] | ["We review the basics of the dynamics of closed strings moving along the discretized line \\Z. The string excitations are described by a field \\phi_x(\\tau) where x is the position of the string in the embedding space and \\tau is a semi-infinite ``euclidean time'' parameter related to the longitudinal mode of the st... | ['2002-07-08'] |
17,652 | ['eng'] | ['Corrigan, E', 'Dorey, P E', 'Sasaki, R', 'Sasaki, R', 'Dorey, P E'] | ['On a generalised bootstrap principle'] | ['General Theoretical Physics'] | ['field theory, Toda', 'field theory, affine', 'S-matrix', 'bootstrap', 'approximation, pole', 'algebra, exchange', 'exchange, algebra'] | ['http://doc.cern.ch/cgi-bin/setlink?base=preprint&categ=cern&id=th-6870-93', 'http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304065'] | ['The S-matrices for non-simply-laced affine Toda field theories are considered in the context of a generalised bootstrap principle. The S-matrices, and in particular their poles, depend on a parameter whose range lies between the Coxeter numbers of dual pairs of the corresponding non-simply-laced algebras. It is propo... | ['1993-04-23'] |
17,653 | ['eng'] | ['Fendley, P R', 'Saleur, H', 'Zamolodchikov, A B'] | ['Massless Flows II'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'S-matrix, factorization', 'Yang-Baxter equation', 'energy, ground state', 'particle, spectra', 'spectra, particle', 'renormalization group, c-function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304051'] | ["We study the spectrum, the massless S-matrices and the ground-state energy of the flows between successive minimal models of conformal field theory, and within the sine-Gordon model with imaginary coefficient of the cosine term (related to the minimal models by ``truncation''). For the minimal models, we find exact S... | ['2002-07-08'] |
17,654 | ['eng'] | ['Brandt, F T', 'Frenkel, J', 'Taylor, J C'] | ['The energy of the high-temperature quark-gluon plasma'] | ['Particle Physics - Theory'] | ['quark gluon, plasma', 'temperature, high', 'tensor, energy-momentum', 'effective action', 'gravitation', 'quantum chromodynamics', 'space-time'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9305178'] | ['For the quark-gluon plasma, an energy-momentum tensor is found corresponding to the high-temperature Braaten-Pisarski effective action. The tensor is found by considering the interaction of the plasma with a weak gravitational field and the positivity of the energy is studied. In addition, the complete effective acti... | ['2002-07-08'] |
17,655 | ['eng'] | ['Kedem, R', 'McCoy, B M', 'Melzer, E'] | ['The sums of Rogers, Schur and Ramanujan and the Bose-Fermi correspondence in $1+1$-dimensional quantum field theory'] | ['Particle Physics - Theory'] | ['field theory, massless', 'massless, field theory', 'dimension, 2', 'field theory, conformal', 'algebra, Kac-Moody', 'algebra, representation', 'statistical mechanics', 'analytic properties', 'fermion', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304056'] | ["We discuss the relation of the two types of sums in the Rogers-Schur-Ramanujan identities with the Bose-Fermi correspondence of massless quantum field theory in $1+1$ dimensions. One type, which generalizes to sums which appear in the Weyl-Kac character formula for representations of affine Lie algebras and in expres... | ['2002-07-08'] |
17,656 | ['eng'] | ['Fendley, P R', 'Saleur, H', 'Zamolodchikov, A B'] | ['Massless Flows I'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'sine-Gordon model', 'symmetry, O(N)', 'central charge', 'renormalization group, transformation', 'finite temperature', 'critical phenomena', 'energy, Casimir', 'regularization, lattice', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304050'] | ["The massless flow between successive minimal models of conformal field theory is related to a flow within the sine-Gordon model when the coefficient of the cosine potential is imaginary. This flow is studied, partly numerically, from three different points of view. First we work out the expansion close to the Kosterl... | ['2002-07-08'] |
17,657 | ['eng'] | ['Mayr, Peter', 'Stieberger, S'] | ['Dilaton, Antisymmetric Tensor and Gauge Fields in String Effective Theories at the One--loop Level'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'effective action', 'partition function', 'scattering amplitude', 'field theory, dilaton', 'gauge field theory, Yang-Mills', 'field theory, tensor', 'coupling constant, dependence', 'dependence, coupling constant', 'perturbation theory, higher-order', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304055'] | ['We investigate the dependence of the gauge couplings on the dilaton field in string effective theories at the one--loop level. First we resolve the discrepancies between statements based on symmetry considerations and explicit calculations in string effective theories on this subject. A calculation of the relevant on... | ['2002-07-08'] |
17,658 | ['eng'] | ['Mickelsson, J', 'Percacci, R'] | ['Global Aspects of p-Branes'] | ['Particle Physics - Theory'] | ['membrane model, p-brane', 'membrane model, boson', 'gauge field theory, Yang-Mills', 'field theory, tensor', 'quantization', 'fibre bundle', 'topology', 'transformation, gauge'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304054'] | ['We generalize to dimension $p>1$ the notion of string structure and discuss the related obstruction. We apply our results to a model of bosonic $p$-branes propagating on a principal $G$-bundle, coupled to a Yang--Mills field and an antisymmetric tensor field and in the presence of a Wess-Zumino term in the Lagrangian... | ['2002-07-08'] |
17,659 | ['eng'] | ['Barnich, G', 'Henneaux, M'] | ['Consistent couplings between fields with a gauge freedom and deformations of the master equation'] | ['Particle Physics - Theory'] | ['transformation, Becchi-Rouet-Stora', 'coupling constant', 'master equation, deformation', 'gauge field theory, U(1)', 'Chern-Simons term', 'dimension, 3'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304057'] | ['The antibracket in BRST theory is known to define a map $\\rm{H^p \\times H^q \\longrightarrow H^{p+q+1}}$ associating with two equivalence classes of BRST invariant observables of respective ghost number p and q an equivalence class of BRST invariant observables of ghost number p+q+1. It is shown that this map is tr... | ['2002-07-08'] |
17,660 | ['eng'] | ['Feinberg, J'] | ['Dissipation of the String Embedding Dimension in the Singlet Sector of a Matrix Model at Large $\\alpha^\\prime$'] | ['Particle Physics - Theory'] | ['matrix model, stochastic', 'Fermi gas', 'critical phenomena', 'expansion, quasiclassical', 'potential', 'two-point function', 'scaling', 'gravitation', 'potential, chemical'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304059'] | ['The one dimensional Fermi gas of matrix eigenvalues of the Marinari-Parisi model at positive values of the cosmological constant is generalised.The number of matrix eigenvalues (i.e. gas particles) is varied while keeping the effective potential fixed. This model exhibits a transition from a phase whose continuum beh... | ['2002-07-08'] |
17,661 | ['eng'] | ['Balachandran, A P', 'Bimonte, G', 'Sen-Gupta, K', 'Marmo, G', 'Salomonson, P', 'Simoni, A', 'Stern, A'] | ['Current Algebra and Conformal Field Theory on a Figure Eight'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'dimension, 2', 'loop space', 'field theory, conformal', 'current algebra', 'topology'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304032'] | ["We examine the dynamics of a free massless scalar field on a figure eight network. Upon requiring the scalar field to have a well defined value at the junction of the network, it is seen that the conserved currents of the theory satisfy Kirchhoff's law, that is that the current flowing into the junction equals the cu... | ['2002-07-08'] |
17,662 | ['eng'] | ['Fan, J B', 'Yu, M'] | ['Modules Over Affine Lie Superalgebras'] | ['Particle Physics - Theory'] | ['algebra, Lie', 'supersymmetry', 'algebra, affine', 'algebra, representation', 'algebra, fusion', 'algebra, Becchi-Rouet-Stora', 'field theory, conformal', 'dimension, 2', 'mathematical methods'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304122'] | ['Modules over affine Lie superalgebras ${\\cal G}$ are studied, in particular, for ${\\cal G}=\\hat{OSP(1,2)}$. It is shown that on studying Verma modules, much of the results in Kac-Moody algebra can be generalized to the super case. Of most importance are the generalized Kac-Kazhdan formula and the Malikov-Feigin-Fu... | ['2002-07-08'] |
17,663 | ['eng'] | ['Raiten, E J'] | ['Tachyon Condensates and String Theoretic Inflation'] | ['Particle Physics - Theory'] | ['string model, closed', 'boson, string', 'background field, string', 'renormalization, beta function', 'field equations, solution', 'sigma model', 'postulated particle, tachyon', 'potential, tachyon', 'inflationary universe', 'density, perturbation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304048'] | ['Cosmological solutions of the beta function equations for the background fields of the closed bosonic string are investigated at the one-loop level. Following recent work of Kostelecky and Perry, it is assumed that the spatial sections of the space-time are conformally flat. Working in the sigma-model frame, the non-... | ['2002-07-08'] |
17,664 | ['eng'] | ['Gorsky, A S', 'Nekrasov, N A'] | ['Hamiltonian systems of Calogero type and two dimensional Yang-Mills theory'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'dimension, 2', 'Hamiltonian formalism', 'path integral', 'lattice field theory', 'algebra, Lie', 'algebra, representation', 'integrability'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304047'] | ['We obtain integral representations for the wave functions of Calogero-type systems,corresponding to the finite-dimentional Lie algebras,using exact evaluation of path integral.We generalize these systems to the case of the Kac-Moody algebras and observe the connection of them with the two dimensional Yang-Mills theor... | ['2002-07-08'] |
17,665 | ['eng'] | ['Kondo, K I', 'Yoshida, K'] | ['Finite-Temperature and -Density QED'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'finite temperature', 'density, finite', 'fermion', 'Dyson-Schwinger equation', 'mass spectrum', 'Jona-Lasinio-Nambu model', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304018'] | ['Based on the real-time formalism, especially, on Thermo Field Dynamics, we derive the Schwinger-Dyson gap equation for the fermion propagator in QED and Four-Fermion model at finite-temperature and -density. We discuss some advantage of the real-time formalism in solving the self-consistent gap equation, in compariso... | ['2002-07-08'] |
17,666 | ['eng'] | ['Candelas, P', 'Derrick, E', 'Parkes, L'] | ['Generalized Calabi-Yau Manifolds and the Mirror of a Rigid Manifold'] | ['Particle Physics - Theory'] | ['space-time, Calabi-Yau', 'space-time, mirror', 'cohomology', 'topology', 'coupling, Yukawa', 'Yukawa, coupling', 'group theory, modular', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304045'] | ['We describe the mirror of the Z orbifold as a representation of a class of generalized Calabi-Yau manifolds that can be realized as manifolds of dimension five and seven. Despite their dimension these correspond to superconformal theories with $c=9$ and so are perfectly good for compactifying the heterotic string to ... | ['2002-07-08'] |
17,667 | ['eng'] | ['Mielke, E W', 'Gronwald, F', 'Obukhov, Yu N', 'Tresguerres, R', 'Hehl, F W'] | ["Towards complete integrability of two dimensional Poincar\\'e gauge gravity"] | ['Particle Physics - Theory'] | ['gravitation', 'gauge field theory, Poincare', 'dimension, 2', 'field theory, action', 'field equations, solution', 'black hole', 'dilaton', 'integrability'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304043'] | ["It is shown that gravity on the line can be described by the two dimensional (2D) Hilbert-Einstein Lagrangian supplemented by a kinetic term for the coframe and a translational {\\it boundary} term. The resulting model is equivalent to a Yang-Mills theory of local {\\it translations} and frozen Lorentz gauge degrees.... | ['2002-07-08'] |
17,668 | ['eng'] | ['Galperin, A', 'Sokatchev, Emery S'] | ['A Twistor Formulation of the Non-Heterotic Superstring with Manifest Worldsheet Supersymmetry'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry, superspace', 'dimension, 3', 'invariance, reparametrization', 'constraint, Virasoro', 'field theory, action', 'twistor'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304046'] | ['We propose a new formulation of the $D=3$ type II superstring which is manifestly invariant under both target-space $N=2$ supersymmetry and worldsheet $N=(1,1)$ super reparametrizations. This gives rise to a set of twistor (commuting spinor) variables, which provide a solution to the two Virasoro constraints. The wor... | ['2002-07-08'] |
17,669 | ['eng'] | ['Visinescu, M'] | ['The Geodesic Motion on Generalized Taub-Nut Gravitational Instantons'] | ['Particle Physics - Theory'] | ['gravitation, instanton', 'particle, spinless', 'spinless, particle', 'sigma model, nonlinear', 'dimension, 5', 'field equations, monopole', 'Kaluza-Klein model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304022'] | ['A class of generalized Taub-NUT gravitational instantons is reported in five - dimensional Einstein gravity coupled to a non-linear sigma model. The geodesic dynamics of a spinless particle of unit mass on these static gravitational instantons is studied. This is accomplished by finding a generalized Runge-Lenz vecto... | ['2002-07-08'] |
17,670 | ['eng'] | ['García-Compéan, H', 'López-Romero, J M', 'Rodríguez-Segura, M A', 'Socolovsky, M'] | ['Principal bundles, connections and BRST cohomology'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'fibre bundle', 'cohomology, Becchi-Rouet-Stora', 'differential geometry', 'topology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9408003'] | ['We review the elementary theory of gauge fields and the Becchi-Rouet-Stora- Tyutin symmetry in the context of differential geometry. We emphasize the topological nature of this symmetry and discuss a double Chevalley-Eilenberg complex for it.'] | ['1994-08-02'] |
17,671 | ['eng'] | ['Giddings, Steven B'] | ['Constraints on Black Hole Remnants'] | ['Particle Physics - Theory'] | ['quantum gravity', 'black hole', 'effective action', 'particle, pair production', 'pair production, particle', 'strong coupling', 'postulated particle, informon'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304027'] | ['One possible fate of information lost to black holes is its preservation in black hole remnants. It is argued that a type of effective field theory describes such remnants (generically referred to as informons). The general structure of such a theory is investigated and the infinite pair production problem is revisit... | ['2002-07-08'] |
17,672 | ['eng'] | ['Rovelli, C'] | ['The basis of the Ponzano-Regge-Turaev-Viro-Ooguri model is the loop representation basis'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 3', 'lattice field theory', 'loop space', 'phase space', 'partition function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304164'] | ["We show that the Hilbert space basis that defines the Ponzano-Regge- Turaev-Viro-Ooguri combinatorial definition of 3-d Quantum Gravity is the same as the one that defines the Loop Representation. We show how to compute lengths in Witten's 3-d gravity and how to reconstruct the 2-d geometry from a state of Witten's t... | ['2002-07-08'] |
17,673 | ['eng'] | ['Martinec, Emil J'] | ['The Light Cone in String Theory'] | ['Particle Physics - Theory'] | ['string model', 'light cone gauge', 'loop space', 'boundary condition'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304037'] | ['The causal boundary of string propagation -- defined as the hypersurface in loop space bordering the timelike(spacelike) domains in which two successive measurements of the string field do(do not) interfere with one another -- is argued to be $0=\\int d\\sigma\\bigl(\\delta X(\\sigma)\\bigr)^2 = \\sum_{\\ell=-\\infty... | ['2002-07-08'] |
17,674 | ['eng'] | ['Klemm, A D', 'Theisen, Stefan J'] | ['Mirror Maps and Instanton Sums for Complete Intersections in Weighted Projective Space'] | ['Particle Physics - Theory'] | ['spontaneous compactification', 'space-time, Calabi-Yau', 'space-time, mirror', 'coupling, Yukawa', 'Yukawa, coupling', 'field theory, instanton'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304034'] | ['We consider a class of Calabi-Yau compactifications which are constructed as a complete intersection in weighted projective space. For manifolds with one K\\"ahler modulus we construct the mirror manifolds and calculate the instanton sum.'] | ['2002-07-08'] |
17,675 | ['eng'] | ['Ishikawa, H', 'Kato, M'] | ['c = 1 string as a topological model'] | ['General Theoretical Physics'] | ['string model', 'central charge, 1', 'sigma model, nonlinear', 'field theory, topological', 'charge, Becchi-Rouet-Stora', 'phase space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304039'] | [] | ['2003-11-27'] |
17,676 | ['eng'] | ['Ahn, C'] | ['Free Superfield Realization of N=2 Quantum Super W_{3} Algebra'] | ['Particle Physics - Theory'] | ['quantum algebra, W(3)', 'quantum algebra, representation', 'supersymmetry, superfield'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304038'] | ['We rewrite $ N=2$ quantum super $W_{3}$ algebra, a nonlinear extended $N=2$ super Virasoro algebra, containing one additional primary superfield of dimension $2$ which has no $U(1)$ charge, besides the super stress energy tensor of dimension $1$ in $N=2$ superspace. The free superfield realization of this algebra is ... | ['2002-07-08'] |
17,677 | ['eng'] | ['De Jonghe, F'] | ['Schwinger--Dyson BRST symmetry and the Batalin--Vilkovisky Lagrangian Quantisation of Gauge Theories with Open or Reducible Gauge Algebras'] | ['Particle Physics - Theory'] | ['gauge field theory', 'quantization', 'transformation, Becchi-Rouet-Stora', 'algebra, gauge'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304025'] | ['In this short note we extend the results of Alfaro and Damgaard on the origin of antifields to theories with a gauge algebra that is open or reducible.'] | ['2002-07-08'] |
17,678 | ['eng'] | ['Chamseddine, A H', 'Fröhlich, J'] | ['SO(10) Unification in Non-Commutative Geometry'] | ['Particle Physics - Theory'] | ['grand unified theory, SO(10)', 'geometry, noncommutative', 'Higgs model', 'potential, scalar', 'fermion, mass', 'mass, fermion', 'operator, Dirac', 'symmetry breaking', 'gauge field theory, action'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304023'] | ['We construct an $SO(10)$ grand unified theory in the formulation of non-com-\\break mutative geometry. The geometry of space-time is that of a product of a continuos four dimensional manifold times a discrete set of points. The properties of the fermionic sector fix almost uniquely the Higgs structure. The simplest m... | ['2002-07-08'] |
17,679 | ['eng'] | ['Nakatsu, T', 'Sugawara, Y'] | ['Instanton and Spectral Flow in Topological Conformal Field Theories'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'field theory, topological', 'Wess-Zumino-Witten model', 'gauge field theory', 'path integral', 'field theory, instanton', 'operator, algebra', 'algebra, Becchi-Rouet-Stora', 'cohomology', 'phase space', 'correlation function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304029'] | ['A class of two-dimensional topological conformal field theories (TCFTs) is studied within the framework of gauged WZW models in order to gain some insights on the global geometrical nature of TCFTs. The BRST quantizations of topological G/H gauged WZW models (the twisted versions of SUSY gauged WZW models) are given ... | ['2002-07-08'] |
17,680 | ['eng'] | ['Sevrin, A', 'Thielemans, K', 'Troost, W'] | ['The Relation between Linear and Non-Linear $N=3,4$ Supergravity Theories'] | ['Particle Physics - Theory'] | ['supergravity, chiral', 'dimension, 2', 'effective action', 'algebra, gauge', 'algebra, linear', 'algebra, nonlinear', 'path integral', 'gravitation, induced', 'operator product expansion', 'Ward identity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304020'] | ['The effective actions for $d=2$, $N=3,4$ chiral supergravities with a linear and a non-linear gauge algebra are related to each other by a quantum reduction, the latter is obtained from the former by putting quantum currents equal to zero. This implies that the renormalisation factors for the quantum actions are iden... | ['2002-07-08'] |
17,681 | ['eng'] | ['Bajnok, Z'] | ['$C_2$ Toda theory in the reduced WZNW framework'] | ['Particle Physics - Theory'] | ['field theory, Toda', 'dimension, 2', 'Wess-Zumino-Witten model', 'algebra, W(N)', 'algebra, representation', 'field equations, solution', 'stability'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304019'] | ['We consider the $C_2$ Toda theory in the reduced WZNW framework. Analysing the classical representation space of the symmetry algebra (which is the corresponding $C_2$ $W$ algebra) we determine its classical highest weight representations. We quantise the model promoting only the relevant quantities to operators. Usi... | ['2002-07-08'] |
17,682 | ['eng'] | ['Bordag, M', 'Voropaev, S'] | ['Charged Particle with Magnetic Moment in the Aharonov-Bohm Potential'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'Aharonov-Bohm effect', 'charged particle', 'magnetic moment', 'wave function', 'bound state', 'spin, 1/2', '1/2, spin'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304017'] | ['We considered a charged quantum mechanical particle with spin ${1\\over 2}$ and gyromagnetic ratio $g\\ne 2$ in the field af a magnetic string. Whereas the interaction of the charge with the string is the well kown Aharonov-Bohm effect and the contribution of magnetic moment associated with the spin in the case $g=2$... | ['2002-07-08'] |
17,683 | ['eng'] | ['Gegenberg, J', 'Kunstatter, G'] | ['The Partition Function for Topological Field Theories'] | ['Particle Physics - Theory'] | ['field theory, topological', 'partition function', 'path integral, measure', 'differential forms', 'gauge field theory, U(1)', 'Chern-Simons term', 'gauge field theory, tensor', 'gauge field theory, nonabelian'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304016'] | ['We use a Hodge decomposition and its generalization to non-abelian flat vector bundles to calculate the partition function for abelian and non- abelian BF theories in $n$ dimensions. This enables us to provide a simple proof that the partition function is related to the Ray-Singer torsion defined on flat vector bundl... | ['2002-07-08'] |
17,684 | ['eng'] | ['Caselle, M', "D'Adda, A", 'Magnea, L', 'Panzeri, S'] | ['Two dimensional QCD is a one dimensional Kazakov-Migdal model'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'dimension, 2', 'space-time, torus', 'space-time, cylinder', 'dependence, gauge', 'partition function', 'regularization, zeta function', 'dimensional reduction', 'matrix model, Kazakov-Migdal model', 'dimension, 1', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304015'] | ['We calculate the partition functions of QCD in two dimensions on a cylinder and on a torus in the gauge $\\partial_{0} A_{0} = 0$ by integrating explicitly over the non zero modes of the Fourier expansion in the periodic time variable. The result is a one dimensional Kazakov-Migdal matrix model with eigenvalues on a ... | ['2002-07-08'] |
17,685 | ['eng'] | ['Li, M'] | ['Matter-ghost mixing and the exact 2d black hole metric'] | ['Particle Physics - Theory'] | ['quantum gravity', 'black hole', 'dimension, 2', 'interference, (matter ghost)', 'coset space', 'Wess-Zumino-Witten model', 'field theory, conformal'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304021'] | ["We study a revised version of Witten's 2d black hole, in which the matter and (b,c) ghosts are mixed. The level of the coset model is still 9/4. We show that this model is equivalent to that of Mukhi and Vafa, in which the level of the coset model is taken as 3, and the stress tensor is improved. We argue that the ex... | ['2002-07-08'] |
17,686 | ['eng'] | ['Nielsen, Holger Bech', 'Rugh, S E'] | ['WHY do we live in 3+1 dimensions?'] | ['Particle Physics - Theory'] | ['talk', 'space-time, dimension', 'fermion, Weyl', 'stability', 'string model', 'supersymmetry', 'Dirac equation', 'Weyl equation', 'algebra, Clifford', 'spinor', 'gauge boson'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9407011'] | ["abstract: Noticing that really the fermions of the Standard Model are best thought of as Weyl - rather than Dirac - particles (relative to fundamental scales located at some presumably very high energies) it becomes interesting that the experimental space-time dimension is singled out by the Weyl equation: It is obse... | ['1994-07-04'] |
17,687 | ['eng'] | ['Mohammedi, N'] | ['Naked Singularities in Four-Dimensional String Backgrounds'] | ['Particle Physics - Theory'] | ['string model', 'background field', 'sigma model, nonlinear', 'gauge field theory, abelian', 'Wess-Zumino-Witten model', 'space-time', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304013'] | ['It is shown that gauged nonlinear sigma models can be always deformed by terms proportional to the field strength of the gauge fields (nonminimal gauging). These deformations can be interpreted as perturbations, by marginal operators, of conformal coset models. When applied to the SL(2,R)*SU(2)/[U(1)*U(1)] WZWN model... | ['2002-07-08'] |
17,688 | ['eng'] | ['Matsumura, Y', 'Sakai, N', 'Shirokura, H'] | ['Macroscopic Loop Amplitudes in Two-Dimensional Dilaton Gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'gravitation, dilaton', 'dimension, 2', 'Wheeler-DeWitt equation, superspace', 'astrophysics, fundamental constant', 'scaling', 'field theory, conformal'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304010'] | ['Macroscopic loop amplitudes are obtained for the dilation gravity in two-dimensions. The dependence on the macroscopic loop length $l$ is completely determined by using the Wheeler-DeWitt equation in the mini-superspace approximation. The dependence on the cosmological constant $\\Lambda$ is also determined by using ... | ['2002-07-08'] |
17,689 | ['eng'] | ['Sitarz, A'] | ['Higgs Mass and Noncommutative Geometry'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'electroweak interaction', 'Higgs particle, mass', 'mass, Higgs particle', 'symmetry, spontaneously broken', 'differential geometry, noncommutative'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304005'] | ['We show that the description of the electroweak interactions based on noncommutative geometry of a continuous and a discrete space gives no special relations between the Higgs mass and other parameters of the model. We prove that there exists a gauge invariant term, linear in the curvature, which is trivial in the st... | ['2002-07-08'] |
17,690 | ['eng'] | ['Orland, P'] | ['The Space-Time Manifold as a Critical Solid'] | ['Particle Physics - Theory'] | ['space-time', 'quantum gravity', 'symmetry, spontaneously broken', 'path integral', 'stability', 'astrophysics, fundamental constant', 'renormalization'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304004'] | ['It is argued that the problems of the cosmological constant, stability and renormalizability of quantum gravity can be solved if the space-time manifold arises through spontaneous symmetry breaking. A ``pre-manifold" model is presented in which many points are connected by random bonds. A set of $D$ real numbers assi... | ['2002-07-08'] |
17,691 | ['eng'] | ['Price, R H', 'Pullin, J'] | ['The Emergence of Radiation from Gravitational Potential Wells'] | ['Particle Physics - Theory'] | ['space-time', 'gravitational radiation', 'partial wave', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202023'] | ["We consider a source of gravitational waves of frequency $\\omega$, located near the center of a massive galaxy of mass $M$ and radius $R$, with $\\omega\\gg R^{-1}$. In the case of a perfect fluid galaxy, and of odd-parity waves, there is no direct matter-wave interaction and the propagation of the waves is affected... | ['2002-06-24'] |
17,692 | ['eng'] | ['Abdalla, Elcio', 'Abdalla, Maria Christina B', 'Dalmazi, D', 'Harada, K'] | ['Correlation Functions in non critical (super) string theory'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'field theory, Liouville', 'correlation function', 'operator, vertex', 'gas, Coulomb', 'charge, screening', 'supergravity', 'dimension, 2'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202089'] | ['We consider the correlation functions of the tachyon vertex operator of the super Liouville theory coupled to matter fields in the super Coulomb gas formulation, on world sheets with spherical topology. After integrating over the zero mode and assuming that the $s$ parameter takes an integer value, we subsequently co... | ['2002-06-24'] |
17,693 | ['eng'] | ['De Vega, H J', 'Mittelbrun, J R', 'Medrano, M R', 'Sánchez, N'] | ['The Two-Dimensional Stringy Black-Hole'] | ['Particle Physics - Theory'] | ['black hole, string', 'dimension, 2', 'propagator, string', 'background, dilaton', 'effect, classical', 'quantization, effect', 'S-matrix', 'field theory, conformal', 'partition function', 'radiation, Hawking'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304002'] | ['The string propagation in the two-dimensional stringy black-hole is investigated from a new approach. We completely solve the classical and quantum string dynamics in the lorentzian and euclidean regimes. In the lorentzian case all the physics reduces to a massless scalar particle described by a Klein-Gordon type equ... | ['2002-07-08'] |
17,694 | ['eng'] | ['Elizalde, E', 'Naftulin, S', 'Odintsov, S D'] | ['The Renormalization Structure and Quantum Equivalence of 2D Dilaton Gravities'] | ['Particle Physics - Theory'] | ['quantum gravity', 'field theory, dilaton', 'dimension, 2', 'effective action', 'perturbation theory, higher-order', 'renormalization group'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9304091'] | ['The one-loop effective action corresponding the general model of dilaton gravity given by the Lagrangian $L=-\\sqrt{g} \\left[ \\frac{1}{2}Z(\\Phi ) g^{\\mu\\nu} \\partial_\\mu \\Phi \\partial_\\nu \\Phi + C(\\Phi ) R + V (\\Phi )\\right]$, where $Z(\\Phi )$, $ C(\\Phi )$ and $V (\\Phi )$ are arbitrary functions of t... | ['2002-07-08'] |
17,695 | ['eng'] | ['Kazakov, V A'] | ['D-dimensional Induced Gauge Theory as a Solvable Matrix Model'] | ['Particle Physics - Theory'] | ['talk', 'gauge field theory, induced', 'any-dimensional', 'matrix model', 'integrability', 'Feynman graph, planar', 'symmetry, Z(N)', 'effective potential', 'partition function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212036'] | ['We discuss basic features and new developments in recently proposed induced gauge theory solvable in any number of dimensions in the limit of infinite number of colours. Its geometrical (string) picture is clarified, using planar graph expansion of the corresponding matrix model. New analytical approach is proposed f... | ['2002-07-04'] |
17,696 | ['eng'] | ['Sitarz, A'] | ['Noncommutative Geometry and The Ising Model'] | ['Particle Physics - Theory'] | ['Ising model', 'differential geometry, noncommutative', 'space, discrete', 'gauge field theory', 'Potts model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212001'] | ['The main aim of this work is to present the interpretation of the Ising type models as a kind of field theory in the framework of noncommutative geometry. We present the method and construct sample models of field theory on discrete spaces using the introduced tools of discrete geometry. We write the action for few m... | ['2002-07-04'] |
17,697 | ['eng'] | ['Landsman, N P'] | ['Classical and quantum representation theory'] | ['Particle Physics - Theory'] | ['quantization, geometrical', 'algebra, representation', 'algebra, deformation', 'quantum mechanics', 'linear spaces, Hilbert space', 'gravitation', 'gauge field theory, Yang-Mills', 'external field'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411172'] | ["These notes present an introduction to an analytic version of deformation quantization. The central point is to study algebras of physical observables and their irreducible representations. In classical mechanics one deals with real Poisson algebras, whereas in quantum mechanics the observables have the structure of ... | ['1994-11-24'] |
17,698 | ['eng'] | ['Ugon, D A', 'Gambini, R', 'Mora, P'] | ['Knot Invariants for Intersecting Loops'] | ['Particle Physics - Theory'] | ['braid group', 'loop space', 'quantum gravity', 'gauge field theory, SU(N)', 'Chern-Simons term'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212137'] | ["We generalize the braid algebra to the case of loops with intersections. We introduce the Reidemeister moves for 4 and 6-valent vertices to have a theory of rigid vertex equivalence. By considering representations of the extended braid algebra, we derive skein relations for link polynomials, which allow us to general... | ['2002-07-04'] |
17,699 | ['eng'] | ['Crane, L', 'Yetter, D N'] | ['A categorical construction of 4D TQFTs'] | ['Particle Physics - Theory'] | ['talk', 'field theory, topological', 'quantum gravity', 'field theory, constructive', 'dimension, 4', 'differential geometry, triangulation', 'invariance, topological', 'knot theory', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9301062'] | ['We construct a four dimensional topological Quantum Field Theory from a modular tensor category. We complete the proof in the case of SU(2)q at a root of unity. Our construction may be important in the physical interpretation of the Chern Simons state in the Ashtekar variables.'] | ['2002-07-04'] |
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