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 |
|---|---|---|---|---|---|---|---|---|
16,300 | ['eng'] | ['Mashkevich, V S', 'Olaussen, K', 'Rietman, R', 'Myrheim, J'] | ['Solution of the three-anyon problem'] | ['Particle Physics - Theory'] | ['postulated particle, anyon', 'three-body problem', 'potential, oscillator', 'boundary condition', 'energy, ground state', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412119'] | ['We solve, by separation of variables, the problem of three anyons with a harmonic oscillator potential. The anyonic symmetry conditions from cyclic permutations are separable in our coordinates. The conditions from two-particle transpositions are not separable, but can be expressed as reflection symmetry conditions o... | ['1994-12-15'] |
16,301 | ['eng'] | ['Lunev, F A'] | ['Renormalization without regularization and r-operation'] | ['Particle Physics - Theory'] | ['talk', 'Feynman graph, higher-order', 'renormalization', 'differential equations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412121'] | ['Definition of Feynman integrals as solutions of some well defined systems of differential equations is proposed. This definition is equivalent to usual one but needs no regularization and application of R-operation. It is argued that proposed renormalization scheme maintains all symmetries that can be maintained in p... | ['1994-12-15'] |
16,302 | ['eng'] | ['Schellekens, A N'] | ['Modular invariance and (quasi)-Galois symmetry in conformal field theory'] | ['Particle Physics - Theory'] | ['talk', 'field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'algebra, Kac-Moody', 'algebra, representation', 'invariance, modular'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412118'] | ['A brief heuristic explanation is given of recent work with Jürgen Fuchs, Beatriz Gato-Rivera and Christoph Schweigert on the construction of modular invariant partition functions from Galois symmetry in conformal field theory. A generalization, which we call quasi-Galois symmetry, is also described. As an application... | ['1994-12-15'] |
16,303 | ['eng'] | ['Lenz, F', 'Shifman, M', 'Thies, M'] | ['Quantum mechanics of the vacuum state in two-dimensional QCD with adjoint fermions'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'gauge field theory, SU(3)', 'dimension, 2', 'vacuum state', 'fermion, Majorana', 'topology', 'boundary condition', 'symmetry, Z(N)', 'Born-Oppenheimer approximation', 'fermion, condensation', 'Hamiltonian formalism', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412113'] | ['A study of two-dimensional QCD on a spatial circle with Majorana fermions in the adjoint representation of the gauge groups SU(2) and SU(3) has been performed. The main emphasis is put on the symmetry properties related to the homotopically non-trivial gauge transformations and the discrete axial symmetry of this mod... | ['1994-12-14'] |
16,304 | ['eng'] | ['Candelas, P', 'De la Ossa, X C', 'Katz, S'] | ['Mirror symmetry for Calabi-Yau hypersurfaces in weighted P$_{4}$ and extensions of Landau Ginzburg theory'] | ['Particle Physics - Theory'] | ['space-time, Calabi-Yau', 'symmetry, mirror', 'geometry, algebra', 'charge, topological', 'Landau-Ginzburg model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412117'] | ["Recently two groups have listed all sets of weights (k_1,...,k_5) such that the weighted projective space P_4^{(k_1,...,k_5)} admits a transverse Calabi-Yau hypersurface. It was noticed that the corresponding Calabi-Yau manifolds do not form a mirror symmetric set since some 850 of the 7555 manifolds have Hodge numbe... | ['1994-12-14'] |
16,305 | ['eng'] | ['Derendinger, J P'] | ['Anomaly cancellations and string symmetries in the effective field theory'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'scattering amplitude, higher-order', 'higher-order, scattering amplitude', 'effective action', 'symmetry, gauge', 'anomaly', 'supersymmetry', 'gauge field theory, Yang-Mills', 'field theory, tensor', 'field theory, scalar', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412112'] | ['This contribution briefly describes some developments of the use of string symmetries and anomaly cancellation mechanisms to include string loop corrections in the construction of the low-energy effective supergravity of superstrings. (Presented at the 27th International Conference on High Energy Physics, Glasgow, Ju... | ['1994-12-14'] |
16,306 | ['eng'] | ['Pareigis, B'] | ['Reconstruction of hidden symmetries'] | ['Particle Physics - Theory'] | ['hidden symmetry', 'operator, algebra', 'braid group', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412085'] | ["Representations of a group G in vector spaces over a field K form a category. One can reconstruct the given group G from its representations to vector spaces as the full group of monoidal automorphisms of the underlying functor. This is a special example of Tannaka-Krein theory. This theory was used in recent years t... | ['1994-12-12'] |
16,307 | ['eng'] | ['Belopolsky, A'] | ['Effective tachyonic potential in closed string field theory'] | ['Particle Physics - Theory'] | ['string model, closed', 'effective potential, tachyon', 'scattering amplitude', 'Riemann surfaces', 'differential forms'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412106'] | ['We calculate the effective tachyonic potential in closed string field theory up to the quartic term in the tree approximation. This involves an elementary four-tachyon vertex and a sum over the infinite number of Feynman graphs with an intermediate massive state. We show that both the elementary term and the sum can ... | ['1994-12-13'] |
16,308 | ['eng'] | ['Borderies, A', 'Grange, P', 'Werner, E'] | ['Broken phase of the O(N)$\\phi^{4}$ model in light cone quantization and 1/N expansion'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'symmetry, O(N)', 'symmetry breaking', 'critical phenomena', 'light cone gauge', 'Hamiltonian formalism', 'quantization, light cone', 'quantization, constraint', 'constraint, solution', 'zero mode', 'renormalization', 'expansion 1/N'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412104'] | ['The solution of the O(N)\\,\\phi^4 scalar field theory in the broken phase is given in the framework of light cone quantization and a 1/N expansion. It involves the successive building of operator solutions to the equation of motion and constraints including operator zero modes of the fields which are the LC counterp... | ['1994-12-13'] |
16,309 | ['eng'] | ['Pitkänen, M'] | ['p-adic field theory limit of TGD is free of uv divergences'] | ['Particle Physics - Theory'] | ['Higgs model', 'number theory', 'fractals', 'quantization, 2', 'field theory, action', 'perturbation theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412103'] | ['The p-adic description of Higgs mechanism in TGD framework provides excellent predictions for elementary particle and hadrons masses\\\\ (hep-th@xxx.lanl.gov 9410058-62). The gauge group of TGD is just the gauge group of the standard model so that it makes sense to study the p-adic counterpart of the standard model a... | ['1994-12-13'] |
16,310 | ['eng'] | ['Gadiyar, G H'] | ['The Weinberg-Faddeev solution to the problems of quantum field theory and quantum gravity'] | ['Particle Physics - Theory'] | ['space-time', 'quantum gravity', 'field theory, scalar', 'fundamental constant, length', 'n-point function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412102'] | ['In this paper a fundamental length is introduced into physics. This is done in a way which respects special relativity and quantum field theory. The theory has formal similarity to quantum field theory though its properties are far better: divergences are got rid of. The problem of quantizing gravity is straightforwa... | ['1994-12-13'] |
16,311 | ['eng'] | ['Zakrzewski, S'] | ['Extended phase space for a spinning particle'] | ['Particle Physics - Theory'] | ['particle, relativistic', 'spin', 'phase space', 'group theory, Poincare', 'quantization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412100'] | ["Extended phase space of an elementary (relativistic) system is introduced in the spirit of the Souriau's definition of the `space of motions' for such system. Our formulation is generally applicable to any homogeneous space-time (e.g. de Sitter) and also to Poisson actions. Calculations concerning the Minkowski case ... | ['1994-12-13'] |
16,312 | ['eng'] | ['Zakrzewski, S'] | ['On the classical $\\kappa$-particle'] | ['Particle Physics - Theory'] | ['algebra, Poincare', 'quantum algebra', 'space-time', 'differential geometry, noncommutative', 'particle, relativistic'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412098'] | ["The dependence of velocity on momentum for the free massive particle obeying the \\kappa -Poincar\\'{e} Poisson symmetry is calculated in terms of intrinsic non-commuting space-time coordinates and shown to have a monotonic character, with upper limit of velocity equal to 1."] | ['1994-12-13'] |
16,313 | ['eng'] | ['Ramgoolam, S'] | ['Wilson loops in 2D Yang Mills'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'gauge field theory, U(N)', 'dimension, 2', 'expansion 1/N', 'Wilson loop', 'partition function', 'expansion, chiral', 'braid group'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412110'] | ['We give a simple diagrammatic algorithm for writing the chiral large N expansion of intersecting Wilson loops in 2D SU(N) and U(N) Yang Mills theory in terms of symmetric groups, generalizing the result of Gross and Taylor for partition functions. We prove that these expansions compute Euler characters of a space of ... | ['1994-12-13'] |
16,314 | ['eng'] | ['Aspinwall, Paul S'] | ['The moduli space of N = 2 superconformal field theories'] | ['Particle Physics - Theory'] | ['lectures', 'field theory, conformal', 'dimension, 2', 'supersymmetry, superfield', 'moduli space', 'geometry, algebra', 'field theory, Kaehler', 'field theory, Calabi-Yau', 'sigma model, nonlinear', 'gauge field theory', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412115'] | ['We review the structure of the moduli space of particular N = (2,2) superconformal field theories. We restrict attention to those of particular use in superstring compactification, namely those with central charge c = 3d for some integer d and whose NS fields have integer U(1) charge. The cases d = 1, 2 and 3 are ana... | ['1994-12-14'] |
16,315 | ['eng'] | ['Korotkin, D A', 'Nicolai, Hermann C'] | ['Separation of variables and hamiltonian formulation for the Ernst equation'] | ['Particle Physics - Theory'] | ['Ernst equation', 'Hamiltonian formalism', 'Einstein equation', 'symmetry, axial'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412072'] | ['It is shown that the vacuum Einstein equations for an arbitrary stationary axisymmetric space-time can be completely separated by re-formulating the Ernst equation and its associated linear system in terms of a non-autonomous Schlesinger-type dynamical system. The conformal factor of the metric coincides (up to some ... | ['1994-12-12'] |
16,316 | ['eng'] | ['Aoyama, H', 'Harano, T'] | ['Complex-time path-integral formalism for quantum tunneling'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'tunneling', 'path integral', 'WKB approximation', 'saddle-point approximation', 'potential', 'propagator', 'field equations, instanton'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412093'] | ['The complex-time formalism is developed in the framework of the path-integral formalism, to be used for analysis of the quantum tunneling phenomena. We show that subleading complex-time saddle-points do not account for the right WKB result. Instead, we develop a reduction formula, which enables us to construct Green ... | ['1994-12-13'] |
16,317 | ['eng'] | ['Ramadevi, P', 'Govindarajan, T R', 'Kaul, R K'] | ['Representations of composite braids and invariants for mutant knots and links in Chern-Simons field theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'Chern-Simons term', 'Wilson loop', 'knot theory', 'braid group, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412084'] | ['We show that any of the new knot invariants obtained from Chern-Simons theory based on an arbitrary non-abelian gauge group do not distinguish isotopically inequivalent mutant knots and links. In an attempt to distinguish these knots and links, we study Murakami (symmetrized version) r-strand composite braids. Salien... | ['1994-12-12'] |
16,318 | ['eng'] | ['Kirsten, K', 'Kubyshin, Yu A'] | ['Amplification of the scattering cross section due to non-trivial topology of the spacetime'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'dimension, 6', 'dimension, 4', 'scattering', 'topology, effect', 'Kaluza-Klein model', 'perturbation theory, higher-order', 'total cross section', 'numerical calculations', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412070'] | ['In previous articles it was demonstrated that the total cross section of the scattering of two light particles (zero modes of the Kaluza-Klein tower) in the six-dimensional \\lambda \\phi^{4} model differs significantly from the cross section of the same process in the conventional \\lambda \\phi^{4} theory in four s... | ['1994-12-08'] |
16,319 | ['eng'] | ['Faizullaev, B A', 'Musakhanov, M M'] | ['Two-loop effective action for theories with fermions'] | ['Particle Physics - Theory'] | ['fermion, field theory', 'effective action', 'Jona-Lasinio-Nambu model', 'effective potential', 'perturbation theory, higher-order', 'phi**n model, 4', 'quantum electrodynamics'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412066'] | ['On the basis of a new approach proposed in our previous work we develope a formalism for calculating of the effective action for some models containing fermion fields. This method allows us to calculate the fermionic part of the effective action (up to two-loop level) properly. The two-loop contribution to the effect... | ['1994-12-08'] |
16,320 | ['eng'] | ['Maggiore, N'] | ['Off-shell formulation of N = 2 super Yang-Mills theories coupled to matter without auxiliary fields'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'coupling, matter', 'matter, coupling', 'dependence, gauge', 'transformation, Becchi-Rouet-Stora', 'Slavnov identity', 'approximation, quasiclassical'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412092'] | ['N=2 supersymmetric Yang--Mills theories coupled to matter are considered in the Wess--Zumino gauge. The supersymmetries are realized nonlinearly and the anticommutator between two susy charges gives, in addition to translations, gauge transformations and equations of motion. The difficulties hidden in such an algebra... | ['1994-12-12'] |
16,321 | ['eng'] | ['De Francia, M', 'Falomir, H A', 'Loewe, M', 'Santangelo, E M'] | ['Confined two-dimensional fermions at finite density'] | ['Particle Physics - Theory'] | ['fermion, field theory', 'dimension, 2', 'field theory, massless', 'massless, field theory', 'potential, chemical', 'density, finite', 'energy', 'boundary condition'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412088'] | ['We introduce the chemical potential in a system of two-dimensional massless fermions, confined to a finite region, by imposing twisted boundary conditions in the Euclidean time direction. We explore in this simple model the application of functional techniques which could be used in more complicated situations.'] | ['1994-12-12'] |
16,322 | ['eng'] | ['Kirschner, R', 'Szymanowski, L'] | ['Effective action for high-energy scattering in gravity'] | ['Particle Physics - Theory'] | ['gravitation', 'effective action', 'scattering amplitude', 'Regge poles'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412087'] | ['The multi-Regge effective action is derived directly from the linearized gravity action. After excluding the redundant field components we separate the fields into momentum modes and integrate over modes which correspond neither to the kinematics of scattering nor to the one of exchanged particles. The effective vert... | ['1994-12-12'] |
16,323 | ['eng'] | ['Poletti, S J', 'Twamley, J', 'Wiltshire, D L'] | ['Charged dilaton black holes with a cosmological constant'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'field theory, dilaton', 'field theory, tensor', 'gauge field theory, U(1)', 'Einstein equation, solution', 'black hole', 'astrophysics, fundamental constant', 'charge, electric', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412076'] | ['The properties of static spherically symmetric black holes, which are either electrically or magnetically charged, and which are coupled to the dilaton in the presence of a cosmological constant, are considered. It is shown that such solutions do not exist if the cosmological constant is positive (in arbitrary spacet... | ['1994-12-12'] |
16,324 | ['eng'] | ['Rozansky, L'] | ["Residue formulas for the large k asymptotics of Witten's invariants of Seifert manifolds"] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'Chern-Simons term', 'dimension, 3', 'partition function', 'asymptotic behavior', 'moduli space', 'geometry, algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412075'] | ["We derive the large k asymptotics of the surgery formula for SU(2) Witten's invariants of general Seifert manifolds. The contributions of connected components of the moduli space of flat connections are identified. The contributions of irreducible connections are presented in a residue form. This form is similar to t... | ['1994-12-12'] |
16,325 | ['eng'] | ['Gaido, I', 'Lüst, Dieter'] | ['Gaugino condensation in the chiral and linear representation of the dilaton'] | ['Particle Physics - Theory'] | ['string model', 'effective action', 'supersymmetry', 'postulated particle, gaugino', 'gaugino, condensation', 'postulated particle, dilaton', 'representation, chiral', 'representation, linear', 'superspace, U(1)', 'duality', 'potential, Kaehler'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412079'] | ['String effective theories with N=1 supersymmetry in four dimensions are subject of the discussion. Gaugino condensation in the chiral representation of the dilaton is reviewed in the truncated formalism in the U_{K}(1)-superspace. Using the supersymmetric duality of the dilaton the same investigation is made in the l... | ['1994-12-12'] |
16,326 | ['eng'] | ['Ashtekar, Abhay', 'Lewandowski, J R'] | ['Differential geometry on the space of connections via graphs and projective limits'] | ['Particle Physics - Theory'] | ['gauge field theory', 'differential geometry', 'differential forms', 'fibre bundle', 'heat kernel', 'Wilson loop', 'quantization', 'loop space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412073'] | ["In a quantum mechanical treatment of gauge theories(including general relativity), one is led to consider a certain completion, \\agb, of the space \\ag of gauge equivalent connections. This space serves as the quantum configuration space, or, as the space of all Euclidean histories over which one must integrate in t... | ['1994-12-12'] |
16,327 | ['eng'] | ['Hollowood, Timothy J', 'Miramontes, J L', 'Park, Q H'] | ['Massive integrable soliton theories'] | ['Particle Physics - Theory'] | ['Wess-Zumino-Witten model', 'potential', 'field theory, Toda', 'dimension, 2', 'field equations, soliton', 'integrability'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412062'] | ["Massive integrable field theories in 1+1 dimensions are defined at the Lagrangian level, whose classical equations of motion are related to the ``non-abelian'' Toda field equations. They can be thought of as generalizations of the sine-Gordon and complex sine-Gordon theories. The fields of the theories take values in... | ['1994-12-08'] |
16,328 | ['eng'] | ['Smirnov, V A'] | ['Differential renormalization, the action principle and renormalization group calculations'] | ['Particle Physics - Theory'] | ['regularization, differential', 'perturbation theory, higher-order', 'renormalization group'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412064'] | ['General prescriptions of differential renormalization are presented. It is shown that renormalization group functions are straightforwardly expressed through some constants that naturally arise within this approach. The status of the action principle in the framework of differential renormalization is discussed.'] | ['1994-12-08'] |
16,329 | ['eng'] | ['Derendinger, J P'] | ['The linear multiplet and quantum string effective actions'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'supersymmetry, multiplet', 'multiplet, supersymmetry', 'effective action', 'anomaly', 'field theory, tensor', 'symmetry, transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412086'] | ['Quantum symmetries of four-dimensional superstrings are frequently realized in an anomaly-cancellation mode in the effective low-energy supergravity. The massless antisymmetric tensor plays an important r\\^ole in this mechanism and the choice of its supersymmetric description, using either a chiral or a linear multi... | ['1994-12-12'] |
16,330 | ['eng'] | ['Sfetsos, K'] | ['Stochastic tachyon fluctuations, marginal deformations and shock waves in string theory'] | ['Particle Physics - Theory'] | ['string model', 'gravitation, shock waves', 'field theory, tachyon', 'tachyon, fluctuation', 'field theory, conformal', 'background field', 'space-time, deformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412065'] | ["Starting with exact solutions to string theory on curved spacetimes we obtain deformations that represent gravitational shock waves. These may exist in the presence or absence of sources. Sources are effectively induced by a tachyon field that randomly fluctuates around a zero condensate value. Is is shown that at th... | ['1994-12-08'] |
16,331 | ['eng'] | ['Jackiw, R W'] | ['Topological structures in QCD at high T'] | ['Particle Physics - Theory'] | ['talk, Cancun 1994/09/26', 'gauge field theory, SU(N)', 'finite temperature, high', 'Chern-Simons term', 'Schroedinger equation', 'topology, effect'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412107'] | ['These days, as high energy particle colliders become unavailable for testing speculative theoretical ideas, physicists are looking to other environments that may provide extreme conditions where theory confronts physical reality. One such circumstance may arise at high temperature T, which perhaps can be attained in ... | ['1994-12-13'] |
16,332 | ['eng'] | ['Smirnov, V A'] | ['Asymptotic expansions in momenta and masses and calculation of Feynman diagrams'] | ['Particle Physics - Theory'] | ['talk, Tegernsee 1994/11/13', 'Feynman graph, higher-order', 'asymptotic expansion', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412063'] | ['General results on asymptotic expansions of Feynman diagrams in momenta and/or masses are reviewed. It is shown how they are applied for calculation of massive diagrams.'] | ['1994-12-08'] |
16,333 | ['eng'] | ['Podles, P', 'Woronowicz, S L'] | ['On the classification of quantum Poincaré groups'] | ['Particle Physics - Theory'] | ['quantum group, Poincare', 'quantum space', 'space-time, Minkowski'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412059'] | ["Using the general theory of [9] (submitted together with the present paper), quantum Poincar\\'e groups (without dilatations) are described and investigated. The description contains a set of numerical parameters which satisfy certain polynomial equations. For most cases we solve them and give the classification of q... | ['1994-12-07'] |
16,334 | ['eng'] | ['Kreimer, D'] | ['Renormalization and knot theory'] | ['Particle Physics - Theory'] | ['perturbation theory, higher-order', 'renormalization', 'Dyson-Schwinger equation', 'n-point function', 'quantum electrodynamics', 'knot theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412045'] | ['We investigate to what extent renormalization can be understood as an algebraic manipulation on concatenated one-loop integrals. We find that the resulting algebra indicates a useful connection to knot theory.'] | ['1994-12-06'] |
16,335 | ['eng'] | ['Song, D Y'] | ['S matrix of collective field theory'] | ['Particle Physics - Theory'] | ['matrix model', 'field theory, collective', 'Hamiltonian formalism', 'boundary condition', 'S-matrix'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412043'] | ['By applying the Lehmann-Symanzik-Zimmermann (LSZ) reduction formalism, we study the S matrix of collective field theory in which fermi energy is larger than the height of potential. We consider the spatially symmetric and antisymmetric boundary conditions. The difference is that S matrices are proportional to momenta... | ['1994-12-06'] |
16,336 | ['eng'] | ['Polonyi, J'] | ['Renormalization group and continuum limit in quantum mechanics'] | ['Particle Physics - Theory'] | ['talk', 'lattice field theory', 'coupling constant, strong interaction', 'strong interaction, coupling constant', 'quantum mechanics', 'continuum limit', 'renormalization group', 'path integral'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412042'] | ['The running coupling constants are introduced in Quantum Mechanics and their evolution is described by the help of the renormalization group equation.'] | ['1994-12-06'] |
16,337 | ['eng'] | ['Guo, H Y', 'Cai, Y', 'Teng, H B'] | ['A note on intrinsic regularization method'] | ['Particle Physics - Theory'] | ['Feynman graph, higher-order', 'regularization', 'quantum electrodynamics', 'fermion', 'phi**n model, 4'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412034'] | ['There exist certain intrinsic relations between the ultraviolet divergent graphs and the convergent ones at the same loop order in renormalizable quantum field theories. Whereupon we may establish a new method, the intrinsic regularization method, to regulate those divergent graphs. In this note, we present a proposa... | ['1994-12-06'] |
16,338 | ['eng'] | ['Bars, Itzhak'] | ['Folded strings'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'dimension, 2', 'space-time', 'field equations, solution'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412044'] | ['Recent progress on the complete set of solutions of two dimensional classical string theory in any curved spacetime is reviewed. When the curvature is smooth the string solutions are deformed folded string solutions as compared to flat spacetime folded strings that were known for 19 years. However, surprizing new str... | ['1994-12-06'] |
16,339 | ['eng'] | ['Oehme, Reinhard'] | ['Analytic structure of amplitudes in gauge theories with confinement'] | ['Particle Physics - Theory'] | ['talk, Paris 1994/07/18', 'quantum chromodynamics', 'confinement', 'scattering amplitude', 'analytic properties', 'algebra, Becchi-Rouet-Stora', 'anomaly', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412040'] | ['For gauge theories with confinement, the analytic structure of amplitudes is explored. It is shown that the analytic properties of physical amplitudes are the same as those obtained on the basis of an effective theory involving only the composite, physical fields. The corresponding proofs of dispersion relations rema... | ['1994-12-06'] |
16,340 | ['eng'] | ['Boyanovsky, D', 'De Vega, H J', 'Holman, R'] | ['Non-equilibrium dynamics of phase transitions'] | ['Particle Physics - Theory'] | ['review, Paris 1994/06/02', 'critical phenomena', 'astrophysics', 'inflationary universe', 'condensation, chiral', 'statistical mechanics', 'Hartree approximation', 'sigma model, O(4)', 'pi, production', 'production, pi', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412052'] | ["In this brief review we introduce the methods of quantum field theory out of equilibrium and study the non-equilibrium aspects of phase transitions. Specifically we critically study the picture of the ``slow-roll'' phase transition in the new inflationary models, we show that the instabilities that are the hallmark o... | ['1994-12-07'] |
16,341 | ['eng'] | ['Tuite, M P'] | ['Generalised moonshine and abelian orbifold constructions'] | ['Particle Physics - Theory'] | ['talk, South Hadley 1994/06/19', 'field theory, conformal', 'dimension, 2', 'field theory, orbifold', 'orbifold, abelian', 'partition function', 'transformation, modular', 'operator, algebra', 'duality', 'algebra, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412036'] | ['We consider the application of Abelian orbifold constructions in Meromorphic Conformal Field Theory (MCFT) towards an understanding of various aspects of Monstrous Moonshine and Generalised Moonshine. We review some of the basic concepts in MCFT and Abelian orbifold constructions of MCFTs and summarise some of the re... | ['1994-12-06'] |
16,342 | ['eng'] | ['Kar, S', 'Maharana, J P'] | ['Planckian scattering of non-abelian gauge particles'] | ['Particle Physics - Theory'] | ['gravitation', 'effective action', 'dimension, 2', 'gauge field theory, SU(2)', 'invariance, Becchi-Rouet-Stora', 'quantization', 'Hamiltonian formalism', 'scattering', 'approximation, quasiclassical'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412026'] | ['We present a systematic study of high energy scattering of non-abelian gauge particles in (3+1) dimensional Einstein gravity using semi-classical techniques of Verlinde and Verlinde. It is shown that the BRST gauge invariance of the Yang-Mills action in presence of quantum gravity at Planckian energy regime is mainta... | ['1994-12-05'] |
16,343 | ['eng'] | ['Ohta, N'] | ['On the entropy of quantum fields in black hole backgrounds'] | ['Particle Physics - Theory'] | ['space-time', 'black hole', 'field theory, scalar', 'path integral', 'energy', 'entropy', 'partition function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412027'] | ['We show that the partition function for a scalar field in a static spacetime background can be expressed as a functional integral in the corresponding optical space, and point out that the difference between this and the functional integral in the original metric is a Liouville type action. A general formula for the ... | ['1994-12-05'] |
16,344 | ['eng'] | ['Banerjee, N'] | ['Interacting anyons and the Darwin lagrangian'] | ['Particle Physics - Theory'] | ['postulated particle, anyon', 'charged particle, anyon', 'potential, Coulomb', 'dimension, 3', 'random phase approximation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412022'] | ['We propose a new model for interacting (electrically charged) anyons, where the 2+1-dimensional Darwin term is responsible for interactions. The Hamiltonian is comparable with the one used previously (in the RPA calculation).'] | ['1994-12-05'] |
16,345 | ['eng'] | ['Fursaev, D V', 'Solodukhin, S N'] | ['On one-loop renormalization of black-hole entropy'] | ['Particle Physics - Theory'] | ['quantum gravity', 'black hole', 'entropy', 'effective action', 'perturbation theory, higher-order', 'renormalization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412020'] | ['One-loop divergences appearing in the entropy of a quantum black hole are proven to be completely eliminated by the standard renormalization of both the gravitational constant and other coefficients by the R^2-terms in the effective gravitational action. The essential point of the proof is that due to the higher orde... | ['1994-12-05'] |
16,346 | ['eng'] | ['Wipf, A', 'Dürr, S'] | ['Gauge theories in a bag'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'fermion, flavor', 'field theory, Euclidean', 'dimension, 2', 'bag model', 'partition function', 'fermion, determinant', 'operator, Dirac', 'zero mode', 'effective action', 'meson, current', 'correlation function', 'symmetry breaking, chiral'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412018'] | ["We investigate multi-flavour gauge theories confined in d\\es 2n-dimensional Euclidean bags. The boundary conditions for the 'quarks' break the axial flavour symmetry and depend on a parameter \\theta. We determine the \\theta-dependence of the fermionic correlators and determinants and find that a CP-breaking \\thet... | ['1994-12-05'] |
16,347 | ['eng'] | ['Ishikawa, S', 'Iwama, Y', 'Miyazaki, T', 'Yamanobe, M'] | ['Interacting open p-branes'] | ['Particle Physics - Theory'] | ['membrane model, p-brane', 'p-brane, open', 'any-dimensional', 'field theory, action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412019'] | ['The Kalb-Ramond action, derived for interacting strings through an action-at-a-distance force, is generalized to the case of interacting p-dimensional objects (p-branes) in D-dimensional space-time. The open p-brane version of the theory is especially taken up. On account of the existence of their boundary surface, t... | ['1994-12-05'] |
16,348 | ['eng'] | ['Itzhaki, N'] | ['Coordinate system in quantum gravity'] | ['Particle Physics - Theory'] | ['astrophysics', 'space-time', 'quantum gravity', 'fundamental constant, length'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412016'] | ['We discuss a Gedanken experiment in which we construct a physical coordinate system which covers the universe. Using general properties of quantum gravity we find that the minimum uncertainty of the coordinate system is \\sqrt[5]{R} where R is the radius of the universe'] | ['1994-12-05'] |
16,349 | ['eng'] | ['Tyurin, N E'] | ['On conformal properties of the dualized sigma-models'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 2', 'transformation, conformal', 'duality', 'renormalization group, beta function', 'space-time, Bianchi', 'Wess-Zumino-Witten model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411242'] | ['We have calculated the first-order beta-functions for a sigma-model (with dilaton) dualized with respect to an arbitrary Lie group that acts without isotropy. We find that non-abelian duality preserves conformal invariance for semi-simple groups, but in general there is an extra contribution to the beta-function prop... | ['1994-12-01'] |
16,350 | ['eng'] | ['Hu, Z N', 'Hou, B Y'] | ['Cyclic quantum dilogarithm and shift operator'] | ['Particle Physics - Theory'] | ['quantum algebra, representation', 'current algebra, lattice', 'field theory, conformal', 'dimension, 2', 'integrability'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412013'] | ['{}From the cyclic quantum dilogarithm the shift operator is constructed with q is a root of unit and the representation is given for the current algebra introduced by Faddeev et ~al. It is shown that the theta-function is factorizable also in this case by using the star-square equation of the Baxter-Bazhanov model.'] | ['1994-12-02'] |
16,351 | ['eng'] | ['Alfaro, J', 'Medina, R', 'Urrutia, L F'] | ['The Itzykson-Zuber integral for U(m|n)'] | ['Particle Physics - Theory'] | ['group theory, representation', 'supersymmetry, superspace', 'group theory, SU(M/N)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412012'] | ['We compute the Itzykson-Zuber (IZ) integral for the superunitary group U(m|n). As a consequence, we are able to find the non-zero correlations of superunitary matrices'] | ['1994-12-05'] |
16,352 | ['eng'] | ['Bonora, L', 'Constantinidis, C P', 'Xiong, C S'] | ['Exact correlators of two-matrix models'] | ['Particle Physics - Theory'] | ['matrix model, 2', 'partition function', 'correlation function', 'integrability', 'differential equations, hierarchy', 'integrability'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412006'] | ['We compute exact solutions of two--matrix models, i.e. detailed genus by genus expressions for the correlation functions of these theories, calculated without any approximation. We distinguish between two types of models, the unreduced and the reduced ones. They have different physical relevance: the former are relat... | ['1994-12-02'] |
16,353 | ['eng'] | ['Emparan, R'] | ['Remarks on the Atick-Witten behavior and strings near black hole horizons'] | ['Particle Physics - Theory'] | ['string model, boson', 'energy', 'finite temperature', 'black hole', 'quantization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412003'] | ['We present arguments pointing to a behavior of the string free energy in the presence of a black hole horizon similar to the Atick-Witten dependence on temperature beyond the Hagedorn transition. We give some evidence based on orbifold techniques applied to Rindler space and further support is found within a Hamilton... | ['1994-12-02'] |
16,354 | ['eng'] | ['Julia, B L', 'Nicolai, Hermann C'] | ['Null Killing vector dimensional reduction and galilean geometrodynamics'] | ['Particle Physics - Theory'] | ['Kaluza-Klein model', 'dimension, >4', 'dimensional reduction', 'symmetry, space-time', 'coupling, matter', 'matter, coupling', 'fibre bundle', 'differential geometry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412002'] | ["The solutions of Einstein's equations admitting one non-null Killing vector field are best studied with the projection formalism of Geroch. When the Killing vector is lightlike, the projection onto the orbit space still exists and one expects a covariant theory with degenerate contravariant metric to appear, its geom... | ['1994-12-05'] |
16,355 | ['eng'] | ['Gamboa-Saraví, R E', 'Rossini, G L', 'Schaposnik, F A'] | ['The $\\zeta$-function answer to parity violation in three dimensional gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory', 'dimension, 3', 'parity, violation', 'violation, parity', 'fermion, massive', 'massive, fermion', 'regularization, zeta function', 'Chern-Simons term', 'fermion, determinant', 'current, ground state'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411238'] | ['Abstract: We study parity violation in 2+1-dimensional gauge theories coupled to massive fermions. Using the \\zeta-function regularization approach we evaluate the ground state fermion current in an arbitrary gauge field background, showing that it gets two different contributions which violate parity invariance and... | ['1994-12-01'] |
16,356 | ['eng'] | ['Braden, H W', 'Buchstaber, V M'] | ['Integrable systems with pairwise interactions and functional equations'] | ['Particle Physics - Theory'] | ['integrability', 'differential equations, Lax', 'dimension, 2', 'field theory, Toda'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411240'] | ['A new ansatz is presented for a Lax pair describing systems of particles on the line interacting via (possibly nonsymmetric) pairwise forces. Particular cases of this yield the known Lax pairs for the Calogero-Moser and Toda systems, as well as their relativistic generalisations. The ansatz leads to a system of funct... | ['1994-12-01'] |
16,357 | ['eng'] | ['Munczek, H J'] | ["Dynamical chiral symmetry breaking, Goldstone's theorem and the consistency of the Schwinger-Dyson and Bethe-Salpeter equations"] | ['Particle Physics - Theory'] | ['Goldstone theorem', 'symmetry, chiral', 'symmetry, dynamically broken', 'fermion, propagator', 'Dyson-Schwinger equation', 'bound state, (fermion antifermion)', 'Bethe-Salpeter equation', 'operator, composite', 'effective action', 'gauge field theory', 'PCAC model', 'vertex function, (gauge boson fermion antifermion)... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411239'] | ["A proof of Goldstone's theorem is given for the case in which global chiral symmetry is dynamically broken. The proof highlights a needed consistency between the exact Schwinger--Dyson equation for the fermion propagator and the exact Bethe--Salpeter equation for fermion--antifermion bound states. A criterion, based ... | ['1994-12-01'] |
16,358 | ['eng'] | ['Khoudeir, A', 'Pantoja, N'] | ['Covariant duality symmetric actions'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'duality, transformation', 'space-time', 'invariance, diffeomorphism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411235'] | ['By introducing a time-like vector field u, a manifestly covariant and diffeomorphism invariant form for the abelian gauge field action with local duality symmetry of Schwarz and Sen is given. Some of the underliying symmetries of the covariant action are further considered. The Noether conserved charge under continuo... | ['1994-12-01'] |
16,359 | ['eng'] | ['Lian Bong H', 'Yau, S T'] | ['Arithmetic properties of mirror map and quantum coupling'] | ['Particle Physics - Theory'] | ['space-time, Calabi-Yau', 'differential equations', 'geometry, algebra', 'coupling, Yukawa', 'Yukawa, coupling', 'transformation, mirror'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411234'] | ["Abstract: We study some arithmetic properties of the mirror maps and the quantum Yukawa coupling for some 1-parameter deformations of Calabi-Yau manifolds. First we use the Schwarzian differential equation, which we derived previously, to characterize the mirror map in each case. For algebraic K3 surfaces, we solve t... | ['1994-12-01'] |
16,360 | ['eng'] | ['Gross, David J'] | ['Oscar Klein and gauge theory'] | ['Particle Physics - Theory'] | ['talk, Stockholm 1994/09/19', 'particle physics, history', 'Kaluza-Klein model', 'unified field theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411233'] | ['Abstract In this talk, delivered at the Oscar Klein Centenary Symposium in Stockholm, I review the 1938 conference held in Warsaw devoted to \\lq \\lq New Theories in Physics". I review all of the talks presented at this meeting and discuss in detail Klein\'s paper where he proposed a unified model of electromagnetis... | ['1994-12-01'] |
16,361 | ['eng'] | ['Nakazawa, N'] | ['On field theories of loops'] | ['Particle Physics - Theory'] | ['field theory, loop space', 'matrix model', 'quantization, stochastic', 'partition function', 'constraint, Virasoro'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411232'] | ['We apply stochastic quantization method to matrix models for the second quantization of loops in both discretized and continuum levels. The fictitious time evolution described by the Langevin equation is interpreted as the time evolution in a field theory of loops. The corresponding Fokker-Planck hamiltonian defines ... | ['1994-12-01'] |
16,362 | ['eng'] | ['Rembielinski, J'] | ['Tachyonic neutrinos?'] | ['Particle Physics - Theory'] | ['postulated particle, tachyon', 'neutrino, tachyon', 'group theory, Lorentz', 'group theory, SO(2)', 'group theory, representation', 'quantization', 'fermion, postulated particle', 'neutrino, mass', 'mass, neutrino', 'interpretation of experiments'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411230'] | ['It is shown that tachyons are associated with unitary representations of Poincare mappings induced from SO(2) little group instead of SO(2,1) one. This allows us to treat more seriously possibility that neutrinos are fermionic tachyons according to the present experimental data.'] | ['1994-12-01'] |
16,363 | ['eng'] | ['Bassetto, A', 'Griguolo, L'] | ['The generalized chiral Schwinger model on the two-sphere'] | ['Particle Physics - Theory'] | ['Schwinger model, chiral', 'dimension, 2', 'space-time, sphere', 'path integral, determinant', 'n-point function', 'fermion, condensation', 'charge, topological'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411229'] | ['Abstract: A family of theories which interpolate between vector and chiral Schwinger models is studied on the two--sphere S^{2}. The conflict between the loss of gauge invariance and global geometrical properties is solved by introducing a fixed background connection. In this way the generalized Dirac--Weyl operator ... | ['1994-12-01'] |
16,364 | ['eng'] | ["'t Hooft, Gerardus"] | ['Lattice regularization of gauge theories without loss of chiral symmetry'] | ['Particle Physics - Theory'] | ['gauge field theory, action', 'fermion, lattice field theory', 'regularization', 'symmetry, chiral', 'field equations, instanton', 'fermion, determinant', 'perturbation theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411228'] | ['Abstract: A lattice regularization procedure for gauge theories is proposed in which fermions are given a special treatment such that all chiral flavor symmetries that are free of Adler-Bell-Jackiw anomalies are kept intact. There is no doubling of fermionic degrees of freedom. A price paid for this feature is that t... | ['1994-12-01'] |
16,365 | ['eng'] | ['Reuter, M', 'Wetterich, C'] | ['Indications for gluon condensation from nonperturbative flow equations'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'gluon, condensation', 'effective action', 'vacuum state, stability', 'field equations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411227'] | ['We employ nonperturbative flow equations for the description of the effective action in Yang-Mills theories. We find that the perturbative vacuum with vanishing gauge field strength does not correspond to the minimum of the Euclidean effective action. The true ground state is characterized by a nonvanishing gluon con... | ['1994-12-01'] |
16,366 | ['eng'] | ['Khuri, R R'] | ['Black hole solutions in string theory'] | ['General Theoretical Physics', 'Particle Physics - Theory'] | ['talk, Cambridge 1994/03/28', 'string model, heterotic', 'effective action', 'field equations, solution', 'black hole', 'membrane model', 'duality', 'talk, Cambridge 1994/03/28', 'string model, heterotic', 'effective action', 'field equations, solution', 'black hole', 'membrane model', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=.&id=CERN-TH-7467-94', 'http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412150'] | ['We present two-parameter solutions of the low-energy four-dimensional heterotic string which in the extremal limit reduce to supersymmetric monopole, string and domain wall solutions. The effective scalar coupling to the Maxwell field, e^{-\\alpha \\phi} F_{\\mu\\nu} F^{\\mu\\nu}, gives rise to a new string black hol... | ['1994-12-19'] |
16,367 | ['eng'] | ["O'Connor, D", 'Stephens, C R'] | ['Critical temperature and amplitude ratios from a finite-temperature renormalization group'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'field theory, Euclidean', 'finite temperature', 'renormalization group, transformation', 'critical phenomena', 'effective potential'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411226'] | ['We study \\l\\f^4 theory using an environmentally friendly finite-temperature renormalization group. We derive flow equations, using a fiducial temperature as flow parameter, develop them perturbatively in an expansion free from ultraviolet and infrared divergences, then integrate them numerically from zero to temper... | ['1994-12-01'] |
16,368 | ['eng'] | ['Devecchi, F P', 'Fleck, M', 'Girotti, H O', 'Gomes, M J'] | ['Canonical quantization of the Maxwell-Chern-Simons theory in the Coulomb gauge'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Chern-Simons term', 'dimension, 3', 'quantization, constraint', 'Hamiltonian formalism', 'Coulomb gauge', 'invariance, Poincare', 'spin'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411224'] | ['The Maxwell-Chern-Simons theory is canonically quantized in the Coulomb gauge by using the Dirac bracket quantization procedure. The determination of the Coulomb gauge polarization vector turns out to be intrincate. A set of quantum Poincar\\\'e densities obeying the Dirac-Schwinger algebra, and, therefore, free of a... | ['1994-12-01'] |
16,369 | ['eng'] | ['Antonuccio, F', 'Dalley, S'] | ['c $>$ 1 non-critical strings and large-N matrix field theory'] | ['Particle Physics - Theory'] | ['string model', 'central charge, >1', 'matrix model', 'quantization', 'light cone gauge', 'critical phenomena', 'dimension, 2', 'model, parton', 'structure function', 'numerical calculations, Monte Carlo', 'expansion 1/N'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411204'] | ["Motivated by a possible relativistic string description of hadrons we use a discretised light-cone quantisation and Lanczos algorithm to investigate the phase structure of phi^3 matrix field theory in the large N limit. In 1+1 dimensions we confirm the existence of Polyakov's non-critical string theory at the boundar... | ['1994-11-29'] |
16,370 | ['eng'] | ['Lamb, D J', 'Capri, A Z', 'Roy, S M'] | ['Massive particle creation in a static 1+1 dimensional spacetime'] | ['Particle Physics - Theory'] | ['particle, production', 'production, particle', 'particle, massive', 'massive, particle', 'dimension, 2', 'space-time, static', 'quantization', 'field theory, scalar', 'boundary condition', 'field equations', 'vacuum state'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411225'] | ['We show explicitly that there is particle creation in a static spacetime. This is done by studying the field in a coordinate system based on a physical principle which has recently been proposed. There the field is quantized by decomposing it into positive and negative frequency modes on a particular spacelike surfac... | ['1994-12-01'] |
16,371 | ['eng'] | ['Ferrari, F'] | ['Gauge field theories on riemann surfaces'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'quantization', 'Riemann surfaces', 'propagator', 'correlation function', 'gauge field theory, SU(N)', 'gauge fixing', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411223'] | ['In this paper the free gauge field theories on a Riemann surface of any genus are quantized in the covariant gauge. The propagators of the gauge fields are explicitly derived and their properties are analysed in details. As an application, the correlation functions of a Yang-Mills field theory with gauge group SU(N) ... | ['1994-12-01'] |
16,372 | ['eng'] | ['Xiu, R'] | ['The all-genus string effective action'] | ['Particle Physics - Theory'] | ['string model', 'effective action', 'invariance, Lorentz', 'background field', 'Riemann surfaces, higher-order'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411222'] | ['We use the off-shell string effective action method developed by E.S. Fradkin and A.A. Tseytlin to obtain the formula for all-genus string effective action with and without compactification at the low-energy approximation in the massless background fields. We find that for the bosonic string, one can determine the di... | ['1994-12-01'] |
16,373 | ['eng'] | ['Deckmyn, A', 'Siebelink, R', 'Troost, W', 'Sevrin, A'] | ['On the lagrangian realization of non-critical W-strings'] | ['Particle Physics - Theory'] | ['string model, W(N)', 'Wess-Zumino-Witten model', 'gauge field theory, action', 'dependence, gauge', 'transformation, Becchi-Rouet-Stora'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411221'] | ['A large class of non-critical string theories with extended worldsheet gauge symmetry are described by two coupled, gauged Wess-Zumino-Witten Models. We give a detailed analysis of the gauge invariant action and in particular the gauge fixing procedure and the resulting BRST symmetries. The results are applied to the... | ['1994-12-01'] |
16,374 | ['eng'] | ['Wadia, S R'] | ['W$_{\\infty}$ algebra and geometric formulation of QCD$_{2}$'] | ['Particle Physics - Theory'] | ['talk, Paris 1994/07/18', 'algebra, W(infinity)', 'gauge field theory, U(N)', 'dimension, 2', 'expansion 1/N', 'baryon, model', 'soliton', 'perturbation theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411213'] | ['We review the gauge invariant formulation of 2-dim. QCD. We show that the non-linear gauge invariant phase space is the coset W_\\infty/W_{+\\infty}\\times W_{-\\infty} ,which is specified by the N=\\infty master-field of this model. The meson fields correspond to the local coordinates of the coset. We comment on the... | ['1994-12-01'] |
16,375 | ['eng'] | ['Cordes, S', 'Moore, G', 'Ramgoolam, S'] | ['Lectures on 2D Yang-Mills theory, equivariant cohomology and topological field theories'] | ['Particle Physics - Theory'] | ['lectures, Les Houches 1994/08/02', 'gauge field theory, Yang-Mills', 'dimension, 2', 'field theory, topological', 'cohomology', 'differential geometry', 'dimension, infinite', 'field theory, action', 'transformation, Becchi-Rouet-Stora', 'fibre bundle', 'Wilson loop', 'bosonization', 'string model', 'partition functi... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411210'] | ['These are expository lectures reviewing (1) recent developments in two-dimensional Yang-Mills theory, and (2) the construction of topological field theory Lagrangians. Topological field theory is discussed from the point of view of infinite-dimensional differential geometry. We emphasize the unifying role of equivari... | ['1994-12-01'] |
16,376 | ['eng'] | ['Kijowski, J'] | ['Relativistic elastomechanics is a gauge-type theory'] | ['Particle Physics - Theory'] | ['mechanics, elastic', 'relativistic', 'gauge field theory', 'transformation, diffeomorphism', 'field theory, action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411212'] | ['A new approach to relativistic elasticity theory is proposed. In this approach the theory becomes a gauge--type theory, with the diffeomorphisms of the material space playing the role of gauge transformations. The dynamics of the elastic material is expressed in terms of three independent, hyperbolic, second order pa... | ['1994-12-01'] |
16,377 | ['eng'] | ['Bars, Itzhak'] | ['Classical solutions of 2D string theory in any curved spacetime'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'dimension, 2', 'space-time', 'field equations, solution'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411217'] | ["The complete set of solutions of two dimensional classical string theory are constructed for any curved spacetime. They describe folded strings moving in curved spacetime. Surprizing stringy behavior becomes evident at singularities such as black holes.The solutions are given in the form ofa map from the world sheet ... | ['1994-12-01'] |
16,378 | ['eng'] | ['Burgess, C P', 'Myers, R C', 'Quevedo, F'] | ['Duality and four-dimensional black holes'] | ['Particle Physics - Theory'] | ['black hole', 'duality, transformation', 'space-time', 'symmetry, rotational', 'string model', 'effective action', 'field equations, solution', 'electromagnetic field', 'postulated particle, dilaton', 'postulated particle, axion', 'mass', 'charge'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411195'] | ["We consider the effects of abelian duality transformations on static, spherically-symmetric, asymptotically flat string spacetimes in four dimensions, where the dilaton, axion, metric, and gauge fields are allowed to be nonzero. Independent of the alpha' expansion, there is a six-parameter family of such configuratio... | ['1994-11-28'] |
16,379 | ['eng'] | ['Wieczerkowski, C', 'Xylander, Y'] | ["Improved actions, the perfect action, and scaling by perturbation theory in Wilson's renormalization group"] | ['Particle Physics - Theory'] | ['lattice field theory, action', 'renormalization group', 'coupling constant', 'scaling', 'perturbation theory', 'sigma model', 'symmetry, O(N)', 'dimension, 2', 'approximation, hierarchy', 'effective potential', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411191'] | ["We propose a method using perturbation theory in the running coupling constant and the idea of scaling to determine improved actions for lattice field theories combining Wilson's renormalization group with Symanzik's improvement program . The method is based on the analysis of a single renormalization group transform... | ['1994-11-28'] |
16,380 | ['eng'] | ['Soloviev, O A'] | ['Relevant perturbations of the SU(1,1)/U(1) coset'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'perturbation theory', 'phase space', 'cohomology', 'operator, Becchi-Rouet-Stora', 'algebra, fusion', 'coset space, SU(1,1)/U(1)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411190'] | ['It is shown that the space of cohomology classes of the SU(1,1)/U(1) coset at negative level k contains states of relevant conformal dimensions. These states correspond to the energy density operator of the associated nonlinear sigma model. We exhibit that there exists a subclass of relevant operators forming a close... | ['1994-11-28'] |
16,381 | ['eng'] | ['Sen, A'] | ['Black hole solutions in heterotic string theory on a torus'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'spontaneous compactification, torus', 'Kaluza-Klein model', 'field equations, solution', 'black hole', 'charge, electric', 'charge, magnetic'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411187'] | ['We construct the general electrically charged, rotating black hole solution in the heterotic string theory compactified on a six dimensional torus and study its classical properties. This black hole is characterized by its mass, angular momentum, and a 28 dimensional electric charge vector. We recover the axion-dilat... | ['1994-11-28'] |
16,382 | ['eng'] | ['Thienel, H P'] | ['Local differential geometry as a representation of the SUSY oscillator'] | ['Particle Physics - Theory'] | ['model, oscillator', 'supersymmetry', 'algebra, representation', 'linear spaces, Hilbert space', 'phase space', 'coherent state', 'space-time', 'differential geometry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411189'] | ['This work proposes a natural extension of the Bargmann-Fock representation to a SUSY system. The main objective is to show that all essential structures of the n-dimensional SUSY oscillator are supplied by basic differential geometrical notions on an analytical R^n, except for the scalar product which is the only add... | ['1994-11-28'] |
16,383 | ['eng'] | ['Page, D N'] | ['Information loss in black holes and/or conscious beings?'] | ['Particle Physics - Theory'] | ['black hole', 'quantum mechanics', 'wormhole', 'S-matrix', 'astrophysics, model', 'information theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411193'] | ["In 1976 Stephen Hawking proposed that information may be lost from our universe as a pure quantum state collapses gravitationally into a black hole, which then evaporates completely into a mixed state of thermal radiation. Although this proposal is controversial, it is tempting to consider analogous processes that mi... | ['1994-11-28'] |
16,384 | ['eng'] | ['Gliozzi, F', 'Tateo, R'] | ['ADE functional dilogarithm identities and integrable models'] | ['Particle Physics - Theory'] | ['dimension, 2', 'integrability', 'renormalization group', 'analytic properties', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411203'] | ["We describe a new infinite family of multi-parameter functional equations for the Rogers dilogarithm, generalizing Abel's and Euler's formulas. They are suggested by the Thermodynamic Bethe Ansatz approach to the Renormalization Group flow of 2D integrable, ADE-related quantum field theories. The known sum rules for ... | ['1994-11-29'] |
16,385 | ['eng'] | ['Itoh, T', 'Kim, Y', 'Sugiura, M', 'Yamawaki, K'] | ['Thirring model as a gauge theory'] | ['Particle Physics - Theory'] | ['Thirring model', 'dimension, 2-4', 'gauge field theory, U(1)', 'symmetry, chiral', 'parity, transformation', 'transformation, parity', 'Dyson-Schwinger equation, solution', 'perturbation theory, higher-order', 'dependence, gauge', 'bosonization', 'duality, transformation', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411201'] | ["We reformulate the Thirring model in D (2 \\le D < 4) dimensions as a gauge theory by introducing U(1) hidden local symmetry (HLS) and study the dynamical mass generation of the fermion through the Schwinger-Dyson (SD) equation. By virtue of such a gauge symmetry we can greatly simplify the analysis of the SD equatio... | ['1994-11-29'] |
16,386 | ['eng'] | ['Barnich, G', 'Brandt, F', 'Henneaux, M'] | ['Conserved currents and gauge invariance in Yang-Mills theory'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'invariance, gauge', 'current, conservation law', 'invariance, Becchi-Rouet-Stora', 'cohomology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411202'] | ['It is shown that in the absence of free abelian gauge fields, the conserved currents of (classical) Yang-Mills gauge models coupled to matter fields can be always redefined so as to be gauge invariant. This is a direct consequence of the general analysis of the Wess-Zumino consistency condition for Yang-Mills theory ... | ['1994-11-29'] |
16,387 | ['eng'] | ['Markl, M'] | ['Models for operads'] | ['Particle Physics - Theory'] | ['differential forms', 'operator, algebra', 'field theory, conformal', 'cohomology', 'loop space', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411208'] | ['We study properties of differential graded (dg) operads modulo weak equivalences, that is, modulo the relation given by the existence of a chain of dg operad maps inducing a homology isomorphism. This approach, naturally arising in string theory, leads us to consider various versions of models. Besides of some applic... | ['1994-11-30'] |
16,388 | ['eng'] | ['Anselmi, D', 'Fré, P'] | ['Gauged hyperinstantons and monopole equations'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'supersymmetry', 'duality', 'field theory, monopole', 'field theory, instanton', 'field theory, Kaehler', 'differential geometry, quaternion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411205'] | ['The monopole equations in the dual abelian theory of the N=2 gauge-theory, recently proposed by Witten as a new tool to study topological invariants, are shown to be the simplest elements in a class of instanton equations that follow from the improved topological twist mechanism introduced by the authors in previous ... | ['1994-11-29'] |
16,389 | ['eng'] | ['Gebert, R W', 'Nicolai, Hermann C'] | ['E$_{10}$ for beginners'] | ['Particle Physics - Theory'] | ['talk', 'group theory, E(10)', 'algebra, Lie', 'algebra, Kac-Moody', 'algebra, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411188'] | ['We present a nontechnical introduction to the hyperbolic Kac Moody algebra E_{10} and summarize our recent attempt to understand the root spaces of Kac Moody algebras of hyperbolic type in terms of a DDF construction appropriate to a subcritical compactified bosonic string.'] | ['1994-11-29'] |
16,390 | ['eng'] | ['Fliegner, D', 'Haberl, P', 'Schmidt, M G', 'Schubert, C'] | ['An improved heat kernel expansion from worldline path integrals'] | ['Particle Physics - Theory'] | ['talk, Winnipeg 1994/08/02', 'gauge field theory', 'potential, scalar', 'effective action', 'expansion, heat kernel', 'path integral'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411177'] | ['The one--loop effective action for the case of a massive scalar loop in the background of both a scalar potential and an abelian or non--abelian gauge field is written in a one--dimensional path integral representation. From this the inverse mass expansion is obtained by Wick contractions using a suitable Green funct... | ['1994-11-24'] |
16,391 | ['eng'] | ['Ambjørn, Jan'] | ['Quantization of geometry'] | ['Particle Physics - Theory'] | ['lectures, Les Houches 1994/08/02', 'quantization', 'geometry', 'random surface', 'string model', 'matrix model', 'quantum gravity', 'Ising model', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411179'] | ['Contents: 1. Introduction 2. Bosonic propagators and random paths 3. Random surfaces and strings 4. Matrix models and two-dimensional quantum gravity 5. The mystery of c > 1 6. Euclidean quantum gravity in d > 2 7. Discussion'] | ['1994-11-25'] |
16,392 | ['eng'] | ['Sasada, T'] | ['Fermion currents on asymmetric orbifolds'] | ['General Theoretical Physics'] | ['string model', 'supersymmetry', 'field theory, conformal', 'dimension, 2', 'field theory, orbifold', 'symmetry, Z(N)', 'current algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9312066'] | ['We study whether orbifold models are equivalently rewritten into torus models in the case of fermionic string theories. It is pointed out that symmetric orbifold models cannot be rewritten into torus models in the case of fermionic string theories because of the absence of twist-untwist intertwining currents on the o... | ['1993-12-09'] |
16,393 | ['eng'] | ['Kuckert, B'] | ['A new approach to spin and statistics'] | ['Particle Physics - Theory', 'Particle Physics - Theory'] | ['axiomatic field theory', 'spin, statistics', 'statistics, spin', 'operator, algebra', 'statistics, parastatistics', 'charge, topological', 'axiomatic field theory', 'spin, statistics', 'statistics, spin', 'operator, algebra', 'statistics, parastatistics', 'charge, topological'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9412130', 'http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=.&id=SCAN-9502261'] | ['We give an algebraic proof of the spin-statistics connection for the parabosonic and parafermionic quantum topological charges of a theory of local observables with a modular PCT-symmetry. The argument avoids the use of the spinor calculus and also works in 1+2 dimensions. It is expected to be a progress towards a ge... | ['1995-02-20'] |
16,394 | ['eng'] | ['Lyakhovich, S L', 'Sharapov, A A'] | ['Quantum inconsistency of W$_{3}$-gravity models associated with magical Jordan algebras'] | ['Particle Physics - Theory'] | ['algebra, W(3)', 'algebra, Jordan', 'operator product expansion', 'gravitation', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411167'] | ['It is shown that the Sugawara-type construction for W3-algebra associated with the four magical Jordan algebras leads to the anomalous theory of W3-gravity.'] | ['1994-11-24'] |
16,395 | ['eng'] | ['Marino, E C'] | ['A new quantum vortex operator and its correlation functions'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'dimension, 3', 'operator, vertex', 'correlation function', 'commutation relations', 'Higgs model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411180'] | ['A new local and gauge invariant quantum vortex operator is constructed in three-dimensional gauge field theories. The correlation functions of this operator are evaluated exactly in pure Maxwell theory and by means of a loop expansion in the Abelian Higgs model. In the broken symmetry phase of the latter an explicit ... | ['1994-11-25'] |
16,396 | ['eng'] | ['Schwarz, J H'] | ['Evidence for non-perturbative string symmetries'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'supersymmetry', 'duality, transformation', 'symmetry, nonperturbative', 'field theory, soliton', 'mass spectrum'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411178'] | ['String theory appears to admit a group of discrete field transformations -- called S dualities -- as exact non-perturbative quantum symmetries. Mathematically, they are rather analogous to the better-known T duality symmetries, which hold perturbatively. In this talk the evidence for S duality is reviewed and some sp... | ['1994-11-24'] |
16,397 | ['eng'] | ['Landsman, N P'] | ['The infinite unitary group, Howe dual pairs, and the quantization of constrained systems'] | ['Particle Physics - Theory'] | ['quantization, geometrical', 'group theory, representation', 'dimension, infinite', 'linear spaces, Hilbert space', 'quantum mechanics', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411171'] | ["The irreducible unitary representations of the Banach Lie group U_0(\\H) (which is the norm-closure of the inductive limit \\cup_k U(k)) of unitary operators on a separable Hilbert space \\H, which were found by Kirillov and Ol'shanskii, are reconstructed from quantization theory. Firstly, the coadjoint orbits of thi... | ['1994-11-24'] |
16,398 | ['eng'] | ['Mignemi, S'] | ['Black holes in generalized dilaton gravity in two dimensions'] | ['Particle Physics - Theory'] | ['gravitation', 'field theory, dilaton', 'dimension, 2', 'field theory, action', 'field equations, solution', 'black hole', 'transformation, gauge', 'string model', 'quantization', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411153'] | ["We consider two-dimensional dilaton-gravity theories with a generic exponential potential for the dilaton, and obtain the most general black hole solutions in the Schwarzshild form. We discuss their geometrical and thermodynamical properties. We also study these models from the point of view of gauge theories of the ... | ['1994-11-22'] |
16,399 | ['eng'] | ['Majumdar, P'] | ['A look at the discretized superstring using random matrices'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'supersymmetry', 'lattice field theory', 'partition function', 'random surface', 'scaling', 'matrix model', 'string tension', 'central charge'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9411161'] | ['Beginning with a review of the arguments leading to the so-called c=1 barrier in the continuum formulation of noncritical string theory, the pathology is then exhibited in a discretized version of the theory, formulated through dynamical triangulation of two dimensional random surfaces. The effect of embedding the st... | ['1994-11-23'] |
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