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 |
|---|---|---|---|---|---|---|---|---|
15,700 | ['eng'] | ['Funahashi, K', 'Kashiwa, T', 'Nima, S', 'Sakoda, S'] | ['More about path integral for spin'] | ['Particle Physics - Theory'] | ['model, spin', 'spin, model', 'symmetry, SU(2)', 'path integral', 'WKB approximation', 'coherent state', 'topology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504125'] | ['Path integral for the SU(2) spin system is reconsidered. We show that the Nielsen-Rohrlich(NR) formula is equivalent to the spin coherent state expression so that the phase space in the NR formalism is not topologically nontrivial. We also perform the WKB approximation in the NR formula and find that it gives the exa... | ['1995-04-25'] |
15,701 | ['eng'] | ['Galperin, A', 'Sokatchev, Emery S'] | ["Supersymmetric sigma models and the 't Hooft instantons"] | ['Particle Physics - Theory'] | ['sigma model, linear', 'supersymmetry, superfield', 'superspace, harmonic', 'field theory, action', 'dimension, 2', 'instanton'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504124'] | ["Witten's linear sigma model for ADHM instantons possesses a natural (0,4) supersymmetry. We study generalizations of the infrared limit of the model that are invariant under (4,4) supersymmetry. In the case of four space-time dimensions a background with a conformally flat metric and torsion is required. The geometry... | ['1995-04-25'] |
15,702 | ['eng'] | ['Bödeker, Dietrich', 'McLerran, L', 'Smilga, A V'] | ['Really computing non-perturbative real time correlation functions'] | ['Particle Physics - Theory'] | ['renormalization', 'phi**n model, 4', 'propagator', 'polarization', 'correlation function, time', 'correlation function, nonperturbative', 'path integral', 'gauge field theory, SU(N)', 'effective Lagrangian', 'Feynman graph'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504123'] | ['It has been argued by Grigoriev and Rubakov that one can simulate real time processes involving baryon number non-conservation at high temperature using real time evolution of classical equations, and summing over initial conditions with a classical thermal weight. It is known that such a naive algorithm is plagued b... | ['1995-04-25'] |
15,703 | ['eng'] | ['Lü, H', 'Pope, C N', 'Sezgin, E'] | ['A search for new (2,2) strings'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'algebra, conformal', 'operator, Becchi-Rouet-Stora', 'mass spectrum'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504122'] | ['There are at present two known string theories in (2,2) dimensions. One of them is the well known N=2 string, and the other one is a more recently constructed N=1 spacetime supersymmetric string. They are both based on certain twistings and/or truncations of the small N=4 superconformal algebra, realised in terms of ... | ['1995-04-25'] |
15,704 | ['eng'] | ['Khviengia, Z', 'Lü, H', 'Pope, C N', 'Sezgin, E', 'Wang, X J', 'Xu, K W'] | ['N=1 superstring in 2+2 dimensions'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'quantization, constraint', 'Hamiltonian formalism', 'operator, algebra', 'operator, Becchi-Rouet-Stora', 'operator product expansion', 'phase space', 'cohomology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504121'] | ["In this paper we construct a (2,2) dimensional string theory with manifest N=1 spacetime supersymmetry. We use Berkovits' approach of augmenting the spacetime supercoordinates by the conjugate momenta for the fermionic variables. The worldsheet symmetry algebra is a twisted and truncated ``small'' N=4 superconformal ... | ['1995-04-25'] |
15,705 | ['eng'] | ['Fayyazuddin, A'] | ['Some comments on N=2 supersymmetric Yang-Mills'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'field equations, monopole', 'approximation, quasiclassical', 'topology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504120'] | ['We comment on some aspects of the semiclassical BPS saturated states close to the curve Im a_{D}/a =0'] | ['1995-04-25'] |
15,706 | ['eng'] | ['Boos, H E'] | ['Modified tetrahedron equation and related 3D integrable models, 2'] | ['Particle Physics - Theory'] | ['model, spin', 'spin, model', 'transfer matrix', 'integrability', 'dimension, 3', 'lattice field theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504119'] | ['This work is a continuation of paper (hep-th/9407146) where the Boltzmann weights for the N-state integrable spin model on the cubic lattice has been obtained only numerically. In this paper we present the analytical formulae for this model in a particular case. Here the Boltzmann weights depend on six free parameter... | ['1995-04-25'] |
15,707 | ['eng'] | ['Smilga, A V'] | ['Sphalerons, instantons, and standing waves on S$^{3}$ x R'] | ['Particle Physics - Theory'] | ['space-time, sphere', 'gauge field theory, SU(2)', 'field equations, instanton', 'field equations, sphaleron', 'radiation', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504117'] | ['We consider pure SU(2) Yang-Mills theory when the space is compactified to a 3-dimensional sphere with finite radius. The Euclidean classical self-dual solutions of the equations of motion (the instantons) and the static finite energy solutions (the sphalerons) which have been found recently by van Baal and Dass are ... | ['1995-04-25'] |
15,708 | ['eng'] | ['Requardt, M'] | ['Discrete mathematics and physics on the Planck-scale'] | ['Particle Physics - Theory'] | ['quantum gravity', 'differential geometry, noncommutative', 'cohomology', 'topology, algebra', 'dimension, topological', 'mathematical methods, graph theory', 'critical phenomena', 'cellular automaton'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504118'] | ['Starting from the hypothesis that both physics, in particular space-time and the physical vacuum, and the corresponding mathematics are discrete on the Planck scale we develop a certain framework in form of a \'{\\it cellular network}\' consisting of cells interacting with each other via bonds. Both the internal stat... | ['1995-04-25'] |
15,709 | ['eng'] | ['Lévai, P', 'McMullan, D', 'Tsutsui, I'] | ['The canonical connection in quantum mechanics'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'Berry phase', 'gauge field theory, induced', 'coset space', 'expansion, harmonic'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504116'] | ["In this paper we investigate the form of induced gauge fields that arises in two types of quantum systems. In the first we consider quantum mechanics on coset spaces G/H, and argue that G-invariance is central to the emergence of the H-connection as induced gauge fields in the different quantum sectors. We then demon... | ['1995-04-25'] |
15,710 | ['eng'] | ['Sugiyama, K'] | ['Genus one partition function of the Calabi-Yau d-fold embedded in CP$^{d+1}$'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 2', 'supersymmetry', 'field theory, topological', 'field theory, Calabi-Yau', 'field theory, Toda', 'potential, Kaehler', 'partition function', 'n-point function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504115'] | ['For a one-parameter family of Calabi-Yau d-fold M embedded in {{CP}^{d+1}}, we consider a new quasi-topological field theory {A^{\\ast}}(M)-model compared with the A(M)-model. The two point correlators on the sigma model moduli space (the hermitian metrics) are analyzed by the A{A^{\\ast}}-fusion on the world sheet s... | ['1995-04-25'] |
15,711 | ['eng'] | ['Sugiyama, K'] | ['Three point functions on the sphere of Calabi-Yau d-folds'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'field theory, Calabi-Yau', 'symmetry, mirror', 'n-point function, 3', 'operator product expansion', 'differential forms', 'cohomology', 'charge, Becchi-Rouet-Stora'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504114'] | ['Using mirror symmetry in Calabi-Yau manifolds M, three point functions of A(M)-model operators on the genus 0 Riemann surface in cases of one-parameter families of d-folds realized as Fermat type hypersurfaces embedded in weighted projective spaces and a two-parameter family of d-fold embedded in a weighted projectiv... | ['1995-04-25'] |
15,712 | ['eng'] | ['Aharony, O', 'Sonnenschein, J', 'Yankielowicz, S'] | ['Flows and duality symmetries in N=1 supersymmetric gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'duality, transformation', 'perturbation theory', 'mass spectrum', 'potential, flat direction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504113'] | ["We present new dual N=1 SUSY gauge theories. Within this set of theories we establish flows to both Seiberg's and Kutasov's dual theories. This provides a unifying picture of the various dual theories. We investigate the new dual theories, their flat directions and mass perturbations."] | ['1995-04-24'] |
15,713 | ['eng'] | ['Cederwall, Martin', 'Von Gussich, A', 'Sundell, P'] | ['Deformations in closed string theory'] | ['Particle Physics - Theory'] | ['string model, closed', 'Hamiltonian formalism', 'field theory, conformal', 'field theory, deformation', 'regularization', 'operator, vertex', 'operator, algebra', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504112'] | ['We study deformations of closed string theory by primary fields of conformal weight (1,1), using conformal techniques on the complex plane. A canonical surface integral formalism for computing commutators in a non-holomorphic theory is constructed, and explicit formul\\ae\\ for deformations of operators are given. We... | ['1995-04-24'] |
15,714 | ['eng'] | ['Fadeev, L'] | ['Discrete Heisenberg-Weyl group and modular group'] | ['Particle Physics - Theory'] | ['group theory, Heisenberg', 'group theory, modular', 'regularization, lattice', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504111'] | ['It is shown that the generators of two discrete Heisenberg-Weyl groups with irrational rotation numbers \\theta and -1/ \\theta generate the whole algebra \\cal B of bounded operators on L_2(\\bf R). The natural action of the modular group in \\cal B is implied. Applications to dynamical algebras appearing in lattice... | ['1995-04-24'] |
15,715 | ['eng'] | ['Johng, H M', 'Shin, H S', 'Soh, K S'] | ['Black holes in two dimensional dilaton gravity and nonlinear Klein-Gordon soliton'] | ['Particle Physics - Theory'] | ['gravitation', 'field theory, dilaton', 'dimension, 2', 'field equations, soliton', 'black hole'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504109'] | ['Two-dimensional dilaton gravity coupled to a Klein-Gordon matter field with a quartic interaction term is considered. The theory has a classical solution which exhibits black hole formation by a soliton. The geometry of black hole induced by a soliton is investigated.'] | ['1995-04-24'] |
15,716 | ['eng'] | ['Green, M B'] | ['A gas of d-instantons'] | ['Particle Physics - Theory'] | ['string model, closed', 'space-time', 'field theory, instanton', 'gas', 'scattering amplitude, higher-order', 'higher-order, scattering amplitude'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504108'] | ['A D-instanton is a space-time event associated with world-sheet boundaries that contributes non-perturbative effects of order e^{-const/\\kappa} to closed-string amplitudes. Some properties of a gas of D-instantons are discussed in this paper.'] | ['1995-04-24'] |
15,717 | ['eng'] | ['Cova, R J', 'Zakrzewski, W J'] | ['Static skyrmions in (2+1)-dimensions'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'symmetry, O(3)', 'Skyrme model', 'dimension, 3', 'field equations, instanton', 'energy', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504100'] | ['In the spirit of previous papers, but using more general field configurations, the non-linear O(3) model in (2+1)-D, modified by the addition of both a potential-like term and a Skyrme-like term, is considered. The instanton solutions are numerically evolved in time and some of their stability properties studied. The... | ['1995-04-21'] |
15,718 | ['eng'] | ['De Vega, H J', 'Sánchez, N'] | ['String theory in cosmological spacetimes'] | ['Particle Physics - Theory'] | ['lectures', 'space-time', 'string model', 'quantization, 1', 'Hamiltonian formalism', 'any-dimensional', 'field equations, solution'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504098'] | ['Progress on string theory in curved spacetimes since 1992 are reviewed. After a short introduction on strings in Minkowski and curved spacetimes, we focus on strings in cosmological spacetimes. The classical behaviour of strings in FRW and inflationary spacetimes is now understood in a large extent from various types... | ['1995-04-20'] |
15,719 | ['eng'] | ['Zhou, Y K'] | ['Further solutions of the critical ABF RSOS models'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'central charge', 'transfer matrix, Bethe ansatz', 'correction, finite size'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504107'] | ['The restricted SOS models of Andrews, Baxter and Forrester have been studied. The conformal weights and the central charges of the non-unitary or unitary minimal conformal field have been extracted from the finite size corrections of transfer matrix of the models with the more general crossing parameter.'] | ['1995-04-21'] |
15,720 | ['eng'] | ['Chau, L L', 'Yamanaka, I'] | ['Conserved monodromy RTT=TTR algebra in the quantum self-dual Yang-Mills system'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'quantization', 'Hamiltonian formalism', 'charge, conservation law', 'charge, nonlocal', 'conservation law', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504106'] | ['We find a conserved monodromy matrix differential operator T in the quantum Self-Dual Yang-Mills (SDYM) system and show that it satisfies the exchange algebra RTT=TTR. From its two infinitesimal forms, we obtain the infinite conserved quantum nonlocal-charge algebras and the infinite conserved Yangian algebras. It is... | ['1995-04-21'] |
15,721 | ['eng'] | ['Grignani, G', 'Semenoff, Gordon W', 'Sodano, P'] | ['Confinement-deconfinement transition in 3-dimensional QED'] | ['Particle Physics - Theory'] | ['quantum electrodynamics, noncompact', 'dimension, 3', 'parity, invariance', 'invariance, parity', 'critical phenomena, confinement', 'finite temperature', 'Polyakov loop, operator', 'symmetry, discrete', 'effective action', 'Feynman graph, higher-order', 'electron, mass', 'mass, electron', 'sine-Gordon model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504105'] | ['We argue that, at finite temperature, parity invariant non-compact electrodynamics with massive electrons in 2+1 dimensions can exist in both confined and deconfined phases. We show that an order parameter for the confinement-deconfinement phase transition is the Polyakov loop operator whose average measures the free... | ['1995-04-21'] |
15,722 | ['eng'] | ['Yegulalp, A'] | ['New boundary conformal field theories indexed by the simply-laced Lie algebras'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'boundary condition', 'symmetry breaking', 'algebra, Lie', 'algebra, representation', 'Hall effect, fractional'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504104'] | ['We consider the field theory of N massless bosons which are free except for an interaction localized on the boundary of their 1+1 dimensional world. The boundary action is the sum of two pieces: a periodic potential and a coupling to a uniform abelian gauge field. Such models arise in open string theory and dissipati... | ['1995-04-21'] |
15,723 | ['eng'] | ['Danielsson, U H', 'Sundborg, B'] | ['The moduli space and monodromies of N=2 supersymmetric SO(2r+1) Yang-Mills theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SO(N)', 'supersymmetry', 'geometry, algebra', 'analytic properties', 'moduli space', 'monodromy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504102'] | ['We write down the weak-coupling limit of N=2 supersymmetric Yang-Mills theory with arbitrary gauge group \\( G \\). We find the weak-coupling monodromies represented in terms of \\( Sp(2r,\\bzeta ) \\) matrices depending on paths closed up to Weyl transformations in the Cartan space of complex dimension r, the rank o... | ['1995-04-21'] |
15,724 | ['eng'] | ['Ohta, N', 'Shimizu, T'] | ['Universal string and small N=4 superstring'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry, superfield', 'spontaneous compactification', 'operator product expansion', 'operator, Becchi-Rouet-Stora', 'operator, algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504099'] | ['It was previously shown that most of the superstrings can be obtained from those with higher world-sheet supersymmetry as spontaneously broken phases. In this paper, we show that the small N=4 superstring, which was left out of this hierarchy of the universal string, can be obtained from the large N=4 strings. We als... | ['1995-04-20'] |
15,725 | ['eng'] | ['De Boer, J', 'Peeters, B', 'Skenderis, K', 'van Nieuwenhuizen, P'] | ['Loop calculations in quantum-mechanical non-linear sigma models'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'sigma model, nonlinear', 'space-time', 'perturbation theory, higher-order', 'path integral', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504097'] | ['By carefully analyzing the relations between operator methods and the discretized and continuum path integral formulations of quantum-mechanical systems, we have found the correct Feynman rules for one-dimensional path integrals in curved spacetime. Although the prescription how to deal with the products of distribut... | ['1995-04-20'] |
15,726 | ['eng'] | ['Gasperini, M', 'Giovannini, M', 'Veneziano, Gabriele'] | ['Primordial magnetic fields from string cosmology'] | ['Particle Physics - Theory'] | ['astrophysics, string', 'magnetic field, galaxy', 'vacuum state, fluctuation', 'field theory, dilaton', 'effective potential', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504083'] | ['Sufficiently large seeds for generating the observed (inter)galactic magnetic fields emerge naturally in string cosmology from the amplification of electromagnetic vacuum fluctuations due to a dynamical dilaton background. The success of the mechanism depends crucially on two features of the so-called pre-big-bang sc... | ['1995-04-18'] |
15,727 | ['eng'] | ['Höhler, E G B', 'Olaussen, K'] | ['Using Conservation Laws to Solve Toda Field Theories'] | ['Particle Physics - Theory'] | ['field theory, Toda', 'dimension, 2', 'conservation law', 'integrability', 'field equations, Liouville', 'algebra, Lie'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504096'] | ['We investigate the question of how the knowledge of sufficiently many local conservation laws for a model can be utilized to solve the model. We show that for models where the conservation laws can be written in one-sided forms, like \\barpartial Q_s = 0, the problem can always be reduced to solving a closed system o... | ['1995-04-19'] |
15,728 | ['eng'] | ['Townsend, P K'] | ['String-membrane duality in seven dimensions'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'dimension, 10', 'membrane model', 'dimension, 11', 'supersymmetry', 'spontaneous compactification', 'dimension, 7', 'duality, transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504095'] | ['The conjectured equivalence of the heterotic string to a K_3 compactified type IIA superstring is combined with the conjectured equivalence of the latter to a compactified 11-dimensional supermembrane to derive a string membrane duality in seven dimensions; the membrane is a soliton of the string theory and vice vers... | ['1995-04-19'] |
15,729 | ['eng'] | ['Ikehara, M'] | ['String field theories from one matrix models'] | ['Particle Physics - Theory'] | ['matrix model, 1', 'continuum limit', 'field theory, string', 'critical phenomena', 'temporal gauge', 'Dyson-Schwinger equation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504094'] | ['Through the continuum limit of the one matrix model on the multicritical point the corresponding Schwinger-Dyson equation of temporal-gauge string field theory is derived. It agrees with that of the background independent formulation recently proposed.'] | ['1995-04-19'] |
15,730 | ['eng'] | ['Elizalde, E', 'Odintsov, S D'] | ['General dilatonic gravity with an asymptotically free gravitational coupling constant near two dimensions'] | ['Particle Physics - Theory'] | ['quantum gravity', 'field theory, dilaton', 'matter, scalar', 'dimension, 2', 'epsilon expansion', 'effective action', 'renormalization, beta function', 'renormalization group, fixed point', 'coupling constant, gravitation', 'gravitation, coupling constant'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504093'] | ['We study a renormalizable, general theory of dilatonic gravity (with a kinetic-like term for the dilaton) interacting with scalar matter near two dimensions. The one-loop effective action and the beta functions for this general theory are written down. It is proven that the theory possesses a non-trivial ultraviolet ... | ['1995-04-19'] |
15,731 | ['eng'] | ['Griguolo, L', 'Percacci, R'] | ['The beta functions of a scalar theory coupled to gravity'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'coupling, gravitation', 'gravitation, coupling', 'effective action', 'relativity theory, general', 'renormalization group, beta function', 'threshold, effect', 'renormalization, wave function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504092'] | ["We study a scalar field theory coupled to gravity on a flat background, below Planck's energy. Einstein's theory is treated as an effective field theory. Within the context of Wilson's renormalization group, we compute gravitational corrections to the beta functions and the anomalous dimension of the scalar field, ta... | ['1995-04-19'] |
15,732 | ['eng'] | ['Jevicki, A', 'Li, M', 'Yoneya, T'] | ['Doubling of scattering phase shifts for two dimensional strings'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 2', 'scattering amplitude, higher-order', 'higher-order, scattering amplitude', 'partial wave analysis', 'approximation, quasiclassical'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504091'] | ['We discuss the origin of the leg factors appearing in 2D string theory. Computing in the world sheet framework we use the semiclassical method to study string amplitudes at high energy. We show that in the case of a simplest 2-point amplitude these factors correspond entirely to the time delay for reflection off the ... | ['1995-04-19'] |
15,733 | ['eng'] | ['Strominger, A'] | ['Massless black holes and conifolds in string theory'] | ['Particle Physics - Theory'] | ['string model, Calabi-Yau', 'spontaneous compactification', 'moduli space, singularity', 'black hole, massless', 'massless, black hole', 'effective action', 'coupling constant, string', 'string, coupling constant', 'geometry', 'membrane model, p-brane'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504090'] | ['Low-energy effective field theories arising from Calabi-Yau string compactifications are generically inconsistent or ill-defined at the classical level because of conifold singularities in the moduli space. It is shown, given a plausible assumption on the degeneracies of black hole states, that for type II theories t... | ['1995-04-19'] |
15,734 | ['eng'] | ['Plefka, J C'] | ['The supereigenvalue model in the double-scaling limit'] | ['Particle Physics - Theory'] | ['supergravity', 'field theory, conformal', 'dimension, 2', 'lattice field theory', 'loop space', 'scaling', 'critical phenomena'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504089'] | ['The double-scaling limit of the supereigenvalue model is performed in the moment description. This description proves extremely useful for the identification of the multi-critical points in the space of bosonic and fermionic coupling constants. An iterative procedure for the calculation of higher-genus contributions ... | ['1995-04-19'] |
15,735 | ['eng'] | ['Das, A', 'Hott, M B'] | ['Thermal effects on the catalysis by a magnetic field'] | ['Particle Physics - Theory'] | ['field theory, finite temperature', 'dimension, 3', 'fermion, condensation', 'magnetic field, external field', 'potential, chemical', 'Bogolyubov transformation', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504086'] | ['We show that the formation of condensates in the presence of a constant magnetic field in 2+1 dimensions is extremely unstable. It disappears as soon as a heat bath is introduced with or without a chemical potential. We point out some new nonanalytic behavior that develops in this system at finite temperature.'] | ['1995-04-18'] |
15,736 | ['eng'] | ['Krivonos, S', 'Sorin, A'] | ['The minimal N=2 superextension of the NLS equation'] | ['Particle Physics - Theory'] | ['Schroedinger equation, nonlinear', 'differential equations, hierarchy', 'operator, Lax', 'supersymmetry, superfield', 'central charge', 'Baecklund transformation', 'current, conservation law', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504084'] | ['We show that the well known N=1 NLS equation possesses N=2 supersymmetry and thus it is actually the N=2 NLS equation. This supersymmetry is hidden in terms of the commonly used N=1 superfields but it becomes manifest after passing to the N=2 ones. In terms of the new defined variables the second Hamiltonian structur... | ['1995-04-18'] |
15,737 | ['eng'] | ['Andreev, O D'] | ['Operator algebra of the SL(2) conformal field theories'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'operator, algebra', 'algebra, SL(2)', 'operator product expansion', 'n-point function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504082'] | ['Structure constants of Operator Algebras for the SL(2) degenerate conformal field theories are calculated.'] | ['1995-04-18'] |
15,738 | ['eng'] | ['Bergshoeff, E A', 'Hull, C', 'Ortín, Tomas'] | ['Duality in the type-II superstring effective action'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'effective action', 'dimension, 9-11', 'supergravity', 'dimensional reduction', 'duality, transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504081'] | ['We derive the T--duality transformations that transform a general d=10 solution of the type--IIA string with one isometry to a solution of the type--IIB string with one isometry and vice versa. In contrast to other superstring theories, the T--duality transformations are not related to a non-compact symmetry of a d=9... | ['1995-04-17'] |
15,739 | ['eng'] | ['Elitzur, Shmuel', 'Forge, A', 'Giveon, Amit', 'Rabinovici, E'] | ['More results in N=1 supersymmetric gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'supersymmetry', 'coupling, matter', 'matter, coupling', 'effective potential'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504080'] | ['We present the exact effective superpotentials in 4d, N=1 supersymmetric SU(2) gauge theories with N_3 triplets and N_2 doublets of matter superfields. For the theories with a single triplet matter superfield we present the exact gauge couplings for arbitrary bare masses and Yukawa couplings.'] | ['1995-04-17'] |
15,740 | ['eng'] | ['Park, D K'] | ['Propagators on the two-dimensional light-cone'] | ['Particle Physics - Theory'] | ['quantization, light cone', 'field theory, scalar', 'dimension, 2', 'propagator, massless', 'massless, propagator'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504079'] | ['Light-cone quantization procedure recently presented is applied to the two-dimensional light-cone theories. By introducing the two distinct null planes it is shown that the modification term in the two-dimensional massless light-cone propagators suggested about twenty years ago vanishs.'] | ['1995-04-17'] |
15,741 | ['eng'] | ['Gates, S J', 'Ketov, S V'] | ['2D (4,4) hypermultiplets'] | ['Particle Physics - Theory'] | ['supersymmetry, superspace', 'supersymmetry, transformation', 'supersymmetry, multiplet', 'multiplet, supersymmetry', 'field theory, action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504077'] | ['The structure of on-shell and off-shell 2D, (4,4) supersymmetric scalar multiplets is investigated, in components and in superspace. We reach the surprising result that there exist eight {\\underline {distinct}} on-shell versions and an even greater variety of off-shell ones. The off-shell generalised tensor and rela... | ['1995-04-17'] |
15,742 | ['eng'] | ['Dotsenko, V S', 'Harris, G', 'Marinari, E', 'Martinec, Emil J', 'Picco, M', 'Windey, P'] | ['Self avoiding surfaces in the 3D Ising model'] | ['Particle Physics - Theory'] | ['Ising model', 'dimension, 3', 'partition function', 'expansion, cluster', 'loop space', 'scaling', 'critical phenomena', 'numerical calculations, Monte Carlo'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504076'] | ['We examine the geometrical and topological properties of surfaces surrounding clusters in the 3--d Ising model. For geometrical clusters at the percolation temperature and Fortuin--Kasteleyn clusters at T_c, the number of surfaces of genus g and area A behaves as A^{x(g)}e^{-\\mu(g)A}, with x approximately linear in ... | ['1995-04-17'] |
15,743 | ['eng'] | ['Aida, T', 'Kitazawa, Y'] | ['Quantum gravity with boundaries near two dimensions'] | ['Particle Physics - Theory'] | ['quantum gravity, boundary condition', 'dimension, 2', 'field theory, action', 'quantization, correction', 'renormalization', 'entropy, geometrical', 'approximation, quasiclassical', 'string model, susceptibility', 'central charge', 'epsilon expansion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504075'] | ['We evaluate the quantum corrections of the Einstein-Hilbert action with boundaries in the 2+\\epsilon dimensional expansion approach. We find the Einstein-Hilbert action with boundaries to be renormalizable to the one loop order. We compute the geometric entropy beyond the semiclassical approximation. It is found tha... | ['1995-04-17'] |
15,744 | ['eng'] | ['Bouwknegt, P G', 'Ludwig, A W W', 'Schoutens, K'] | ['Spinon basis for ($\\widehat{s}\\widehat{l}^{2}$)$_{k}$ integrable highest weight modules and new character formulas'] | ['Particle Physics - Theory'] | ['talk', 'quantum group, SL(2)', 'quantum group, representation', 'integrability'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504074'] | ['In this note we review the spinon basis for the integrable highest weight modules of sl2^ at levels k\\geq1, and give the corresponding character formula. We show that our spinon basis is intimately related to the basis proposed by Foda et al. in the principal gradation of the algebra. This gives rise to new identiti... | ['1995-04-14'] |
15,745 | ['eng'] | ['Cooper, F'] | ["Nonequilibrium problems in quantum field theory and Schwinger's closed time path formalism"] | ['Particle Physics - Theory'] | ['talk, Miami 1995/02/02', 'path integral', 'causality', 'n-point function', 'quark gluon, plasma', 'space-time', 'fermion', 'tunneling', 'symmetry breaking, chiral', 'critical phenomena', 'sigma model, linear', 'symmetry, O(4)', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504073'] | ['We review the closed time path formalism of Schwinger using a path integral approach. We apply this formalism to the study of pair production from strong external fields as well as the time evolution of a nonequilibrium chiral phase transition.'] | ['1995-04-14'] |
15,746 | ['eng'] | ['Ramos, E', 'Roca, J'] | ['Extended gauge invariance in geometrical particle models and the geometry of W-symmetry'] | ['Particle Physics - Theory'] | ['particle, relativistic', 'mechanics, action', 'symmetry, W(N)', 'invariance, gauge', 'Hamiltonian formalism', 'constraint', 'differential geometry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504071'] | ["We prove that particle models whose action is given by the integrated n-th curvature function over the world line possess n+1 gauge invariances. A geometrical characterization of these symmetries is obtained via Frenet equations by rephrasing the n-th curvature model in D-dimensional Euclidean space in terms of a sta... | ['1995-04-14'] |
15,747 | ['eng'] | ['Ho, V B'] | ['A geometric formulation of strong interaction'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'approximation, strong field', 'potential, Yukawa'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504072'] | ['It is observed that, at short range, the field equations of general relativity admit a line element that takes the form of Yukawa potential. The result leads to the possibility that strong interaction may also be described by field equations that have the same form as that of general relativity. It is then shown how ... | ['1995-04-14'] |
15,748 | ['eng'] | ['Korotkin, D A', 'Nicolai, Hermann C'] | ['An integrable model of quantum gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'integrability', 'dimension, 2', 'symmetry, SU(2)', 'symmetry, chiral', 'field theory, dilaton', 'quantization', 'Hamiltonian formalism', 'Wheeler-DeWitt equation, solution', 'Knizhnik-Zamolodchikov equation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504088'] | ["We present a new quantization scheme for 2D gravity coupled to an SU(2) principal chiral field and a dilaton; this model represents a slightly simplified version of stationary axisymmetric quantum gravity. The analysis makes use of the separation of variables found in our previous work [1] and is based on a two-time ... | ['1995-04-19'] |
15,749 | ['eng'] | ['Ivanov, E A'] | ['Off-shell (4,4) supersymmetric sigma models with torsion as gauge theories in harmonic superspace'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 2', 'supersymmetry, superspace', 'superspace, harmonic', 'symmetry, SU(2) x SU(2)', 'field theory, Kaehler', 'torsion', 'transformation, gauge'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504070'] | ['Starting from the action of (4,4) 2D twisted multiplets in the harmonic superspace with a double set of SU(2) harmonic variables, we present its generalization which provides an off-shell description of a wide class of (4,4) sigma models with torsion and non-commuting left and right complex structures. The distinguis... | ['1995-04-13'] |
15,750 | ['eng'] | ['Stoll, D', 'Thies, M'] | ['Higgs mechanism and symmetry breaking without redundant variables'] | ['Particle Physics - Theory'] | ['Higgs model', 'gauge field theory, quantization', 'symmetry breaking', 'quantum electrodynamics', 'Georgi-Glashow model', 'Salam-Weinberg model', 'Hamiltonian formalism', 'transformation, gauge', 'postulated particle, magnetic monopole', 'Goldstone particle', 'photon'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504068'] | ["The Higgs mechanism is reconsidered in the canonical Weyl gauge formulation of quantized gauge theories, using an approach in which redundant degrees of freedom are eliminated. As a consequence, its symmetry aspects appear in a different light. All the established physics consequences of the Higgs mechanism are recov... | ['1995-04-13'] |
15,751 | ['eng'] | ['Banerjee, R', 'Rothe, H J', 'Rothe, Klaus D'] | ['On the equivalence of the Maxwell-Chern-Simons theory and a self-dual model'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'dimension, 3', 'Chern-Simons term', 'Hamiltonian formalism', 'partition function', 'constraint', 'duality, transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504067'] | ['We study the connection between the Green functions of the Maxwell-Chern-Simons theory and a self-dual model by starting from the phase-space path integral representation of the Deser-Jackiw master Lagrangian. Their equivalence is established modulo time-ordering ambiguities.'] | ['1995-04-13'] |
15,752 | ['eng'] | ['Banerjee, R', 'Rothe, H J'] | ['Batalin-Fradkin-Tyutin embedding of a self-dual model and the Maxwell-Chern-Simons theory'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Chern-Simons term', 'dimension, 3', 'duality, transformation', 'Hamiltonian formalism', 'path integral'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504066'] | ['We convert the self-dual model of Townsend, Pilch, and Nieuwenhuizen to a first-class system using the generalized canonical formalism of Batalin, Fradkin, and Tyutin and show that gauge-invariant fields in the embedded model can be identified with observables in the Maxwell-Chern-Simons theory as well as with the fu... | ['1995-04-13'] |
15,753 | ['eng'] | ['Maggiore, N', 'Piguet, O', 'Ribordy, M'] | ['Algebraic renormalization of N=2 supersymmetric Yang-Mills Chern-Simons theory in the Wess-Zumino gauge'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'Chern-Simons term', 'dimension, 3', 'supersymmetry', 'Wess-Zumino gauge', 'perturbation theory, higher-order', 'renormalization', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504065'] | ['We consider a N=2 supersymmetric Yang-Mills-Chern-Simons model, coupled to matter, in the Wess-Zumino gauge. The theory is characterized by a superalgebra which displays two kinds of obstructions to the closure on the translations: field dependent gauge transformations, which give rise to an infinite algebra, and equ... | ['1995-04-13'] |
15,754 | ['eng'] | ['Cognola, G', 'Vanzo, L', 'Zerbini, S'] | ['One-loop quantum corrections to the entropy for an extremal Reissner-Nordström black hole'] | ['Particle Physics - Theory'] | ['black hole', 'entropy, correction', 'perturbation theory, higher-order', 'transformation, conformal', 'expansion, mass', 'mass, expansion', 'field theory, scalar', 'regularization, zeta function', 'energy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504064'] | ['The first quantum corrections to the entropy for an eternal 4-dimensional extremal Reissner-Nordstr\\"om black hole is investigated at one-loop level, in the large mass limit of the black hole, making use of the conformal techniques related to the optical metric. A leading cubic horizon divergence is found and other ... | ['1995-04-13'] |
15,755 | ['eng'] | ['Matsuda, T'] | ['Supersymmetric QCD and Nambu - Jona-Lasinio method'] | ['Particle Physics - Theory'] | ['supersymmetry, superfield', 'Wess-Zumino model', 'effective potential', 'renormalization', 'gauge field theory, SU(N)', 'anomaly', 'fermion, condensation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504063'] | ['We discuss the property of N=1 massless supersymmetric quantum chromodynamics in the intermediate scale applying Nambu-Jona-Lasinio method. We derive a so-called mass-gap equation. This is a non-trivial equation for the order parameter of supersymmetry breaking as well as an equation for the gaugino condensation. But... | ['1995-04-13'] |
15,756 | ['eng'] | ['Das, S', 'Majumdar, P'] | ['Aspects of planckian scattering beyond the eikonal'] | ['Particle Physics - Theory'] | ['space-time', 'Klein-Gordon equation', 'electromagnetic field', 'scattering amplitude', 'partial wave'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504060'] | ['We discuss an approach to compute two-particle scattering amplitudes for spinless particles colliding at Planckian centre-of-mass energies, with increasing momentum transfer away from the eikonal limit. For electrically neutral particles, the amplitude exhibits poles on the imaginary squared cm energy axis at locatio... | ['1995-04-12'] |
15,757 | ['eng'] | ['Hasiewicz, Z', 'Jaskólski, Z'] | ['Classical and quantum massive string'] | ['Particle Physics - Theory'] | ['string model, boson', 'field theory, action', 'any-dimensional', 'quantization, 1', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504061'] | ['The classical and the quantum massive string model based on a modified BDHP action is analyzed in the range of dimensions 1<d<25. The discussion concerning classical theory includes a formulation of the geometrical variational principle, a phase-space description of the two-dimensional dynamics, and a detailed analys... | ['1995-04-12'] |
15,758 | ['eng'] | ['Costambeys, R', 'Mansfield, P'] | ['Topological renormalisation of the O(3) sigma model'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'symmetry, O(3)', 'path integral', 'constraint, solution', 'transformation, Becchi-Rouet-Stora', 'field theory, topological', 'perturbation theory, higher-order', 'n-point function', 'anomaly', 'Ward identity', 'renormalization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504062'] | ["We show that the one-instanton sector moduli-space divergence of the O(3) Sigma Model leads to an unacceptable dependence of Green's functions on the arbitrary way that the field is split into a quantum fluctuation about a classical background. Since the divergence is associated with the degeneration of field configu... | ['1995-04-12'] |
15,759 | ['eng'] | ['De Vega, H J', 'Larsen, A L', 'Sánchez, N'] | ['Circular strings and multi-strings in de Sitter and anti de Sitter spacetimes'] | ['Particle Physics - Theory'] | ['string model', 'space-time, de Sitter', 'dimension, 3', 'space-time, anti-de Sitter', 'quantization, quasiclassical', 'energy', 'pressure', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504050'] | ['The exact general solution of circular strings in 2+1 dimensional de Sitter spacetime is described completely in terms of elliptic functions. The novel feature here is that one single world-sheet generically describes {\\it infinitely many} (different and independent) strings. This has no analogue in flat spacetime. ... | ['1995-04-11'] |
15,760 | ['eng'] | ['Das, A', 'Hott, M B'] | ['Dynamical supersymmetry'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'Hamiltonian formalism', 'supersymmetry', 'mass spectrum'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504059'] | ['We show, in a simple quantum mechanical model, how a theory can become supersymmetric in the presence of interactions even when the free theory is not. This dynamical generation of supersymmetry relaxes the condition on the equality of masses of the superpartners which would be of phenomenological interest.'] | ['1995-04-11'] |
15,761 | ['eng'] | ['Fauser, B'] | ['Vertex normal ordering as a consequence of nonsymmetric bilinear forms in Clifford algebras'] | ['Particle Physics - Theory'] | ['algebra, Clifford', 'algebra, representation', 'differential forms', 'field theory, spinor', 'spinor, field theory', 'nonlinear'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504055'] | ['We consider Clifford algebras with nonsymmetric bilinear forms, which are isomorphic to the standard symmetric ones, but not equal. Observing, that the content of physical theories is dependent on the injection \\oplus^n\\bigwedge \\V^{(n)}\\rightarrow CL({\\cal V},Q) one has to transform to the standard construction... | ['1995-04-11'] |
15,762 | ['eng'] | ['Batakis, N A'] | ['Bianchi-type string cosmology'] | ['Particle Physics - Theory'] | ['astrophysics, string', 'space-time, Bianchi', 'Friedman model', 'background, string', 'space-time, anisotropy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504057'] | ['Bianchi-type string cosmology involves generalizations of the FRW backgrounds with three transitive spacelike Killing symmetries, but without any a priori assumption of isotropy in the 3D sections of homogeneity. With emphasis on those cases with diagonal metrics and vanishing cosmological constant which which have n... | ['1995-04-11'] |
15,763 | ['eng'] | ['Gato-Rivera, B', 'Rosado, J I'] | ['Spectral flows and twisted topological theories'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'field theory, topological', 'operator, algebra', 'algebra, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504056'] | ['We analyze the action of the spectral flows on N=2 twisted topological theories. We show that they provide a useful mapping between the two twisted topological theories associated to a given N=2 superconformal theory. This mapping can also be viewed as a topological algebra automorphism. In particular null vectors ar... | ['1995-04-11'] |
15,764 | ['eng'] | ['Kleihaus, B', 'Kunz, J', 'Sood, A K'] | ['SU(3) Einstein-Yang-Mills sphalerons and black holes'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(3)', 'Einstein equation', 'field equations, sphaleron', 'black hole', 'symmetry, SO(3)', 'symmetry, SU(2)', 'embedding', 'boundary condition', 'field equations, solution', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504053'] | ['In the SU(3) Einstein-Yang-Mills system sequences of static spherically symmetric regular solutions and black hole solutions exist for both the SU(2) and the SO(3) embedding. We construct the lowest regular solutions of the SO(3) embedding, missed previously, and the corresponding black holes. The SO(3) solutions are... | ['1995-04-11'] |
15,765 | ['eng'] | ['Karataeva, I Yu', 'Lyakhovich, S L'] | ['Chiral and axial anomalies in the framework of generalized hamiltonian BFV-quantization'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'fermion, chiral', 'Hamiltonian formalism', 'algebra, constraint', 'algebra, Becchi-Rouet-Stora', 'algebra, commutation relations', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504051'] | ['The regularization scheme is proposed for the constrained Hamiltonian formulation of the gauge fields coupled to the chiral or axial fermions. The Schwinger terms in the regularized operator first-class constraint algebra are shown to be consistent with the covariant divergence anomaly of the corresponding current. R... | ['1995-04-11'] |
15,766 | ['eng'] | ['Awada, M', 'Zoller, D', 'Clark, J F'] | ['Quantum stability of the phase transition in rigid QED'] | ['Particle Physics - Theory'] | ['space-time', 'quantum electrodynamics', 'effective action', 'critical phenomena', 'mass spectrum', 'perturbation theory, higher-order', 'renormalization', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504044'] | ["Rigid QED is a renormalizable generalization of Feynman's space-time action characterized by the addition of the curvature of the world line (rigidity). We have recently shown that a phase transition occurs in the leading approximation of the large N limit. The disordered phase essentially coincides with ordinary QED... | ['1995-04-10'] |
15,767 | ['eng'] | ['Awada, M'] | ['Renormalizability and quantum stability of the phase transition in rigid string coupled to Kalb-Ramond fields, 1'] | ['Particle Physics - Theory'] | ['string model', 'field theory, tensor', 'dependence, gauge', 'perturbation theory, higher-order', 'renormalization group', 'effective action', 'mass spectrum', 'asymptotic behavior', 'critical phenomena'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504045'] | ['Recently we have shown that a phase transition occurs in the leading approximation of the large N limit in rigid strings coupled to long range Kalb-Ramond interactions. The disordered phase is essentially the Nambu-Goto-Polyakov string theory while The ordered phase is a new theory. In this part I letter we study the... | ['1995-04-10'] |
15,768 | ['eng'] | ['Awada, M'] | ['Renormalizability and quantum stability of the phase transition in rigid string coupled to Kalb-Ramond fields, 2'] | ['Particle Physics - Theory'] | ['string model', 'field theory, tensor', 'critical phenomena', 'stability', 'renormalization', 'perturbation theory, higher-order', 'mass spectrum', 'expansion 1/N'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504046'] | ['Recently we have shown that a phase transition occurs in the leading approximation of the large N limit in rigid strings coupled to long range Kalb-Ramond interactions. The disordered phase is essentially the Nambu-Goto-Polyakov string theory while the ordered phase is a new theory. In this part II letter we study th... | ['1995-04-10'] |
15,769 | ['eng'] | ['Zyskin, M'] | ['Quantum Sturm-Liouville equation, quantum resolvent, quantum integrals and quantum KdV'] | ['Particle Physics - Theory'] | ['field equations, Liouville', 'Korteweg-de Vries equation', 'current, conservation law', 'quantization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504041'] | ['We construct quantum operators solving the quantum versions of the Sturm-Liouville equation and the resolvent equation, and show the existence of conserved currents. The construction depends on the following input data: the basic quantum field O(k) and the regularization .'] | ['1995-04-10'] |
15,770 | ['eng'] | ['Barcelos-Neto, J', 'Braga, N R F', 'De Souza, S M'] | ['Trace anomaly in the field-antifield formalism'] | ['Particle Physics - Theory'] | ['space-time', 'field theory, scalar', 'field theory, massless', 'massless, field theory', 'invariance, Becchi-Rouet-Stora', 'anomaly, conformal', 'regularization, zeta function', 'antifield'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504039'] | ['The field-antifield quantization method is used to calculate the trace anomaly for a massless scalar field in a curved background, by means of the zeta function regularization procedure.'] | ['1995-04-10'] |
15,771 | ['eng'] | ['Blaga, P A', 'Tataru, L', 'Vancea, I V'] | ['BRST cohomology for 2D gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'cohomology, Becchi-Rouet-Stora', 'gravitation, conformal', 'symmetry, gauge', 'algebra, differential', 'ghost', 'anomaly', 'Schwinger terms'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504037'] | ['The BRST cohomology group in the space of local functionals of the fields for the two-dimensional conformally invariant gravity is calculated. All classical local actions (ghost number equal to zero) and all candidate anomalies are given and discussed for our model.'] | ['1995-04-10'] |
15,772 | ['eng'] | ['Tataru, L', 'Vancea, I V'] | ['BRST cohomology in Beltrami parametrization'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'Riemann surfaces', 'differential forms, Beltrami', 'transformation, Becchi-Rouet-Stora', 'cohomology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504036'] | ['We study the BRST cohomology within a local conformal Lagrangian field theory model built on a two dimensional Riemann surface with no boundary. We deal with the case of the complex structure parametrized by Beltrami differential and the scalar matter fields. The computation of {\\em all} elements of the BRST cohomol... | ['1995-04-10'] |
15,773 | ['eng'] | ['Sergeev, S M', 'Mangazeev, V V', 'Stroganov, Yu G'] | ['The vertex version of the Bazhanov-Baxter model'] | ['Particle Physics - Theory'] | ['lattice field theory', 'model, vertex', 'symmetry, transformation', 'integrability'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504035'] | ["In this paper we formulate an integrable model on the simple cubic lattice. The N -- valued spin variables of the model belong to edges of the lattice. The Boltzmann weights of the model obey the vertex type Tetrahedron Equation. In the thermodynamic limit our model is equivalent to the Bazhanov -- Baxter Model. In t... | ['1995-04-10'] |
15,774 | ['eng'] | ['Anselmi, D'] | ['Topological field theory and confinement'] | ['Particle Physics - Theory'] | ['field theory, topological', 'gauge field theory, Yang-Mills', 'instanton', 'Aharonov-Bohm effect', 'matter, coupling', 'coupling, matter', 'embedding, topological', 'gauge fixing'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504049'] | ['Topological Yang-Mills theory with the Belavin-Polyakov-Schwarz-Tyupkin SU(2) instanton is solved completely, revealing an underlying multi-link intersection theory. Link invariants survive the coupling to matter (hyperinstantons). The physical relevance of topological invariants is discussed by embedding topological... | ['1995-04-10'] |
15,775 | ['eng'] | ['Harvey, J A', 'Strominger, A'] | ['The heterotic string is a soliton'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'spontaneous compactification', 'field theory, soliton', 'charge, topological', 'duality', 'supergravity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504047'] | ['It is shown that the Type IIA superstring compactified on K3 has a smooth string soliton with the same zero mode structure as the heterotic string compactified on a four torus, thus providing new evidence for a conjectured exact duality between the two six-dimensional string theories. The chiral worldsheet bosons ari... | ['1995-04-10'] |
15,776 | ['eng'] | ['Awada, M'] | ['Asymptotic freedom in a string model of high temperature QCD'] | ['Particle Physics - Theory'] | ['quantum chromodynamics', 'effective action', 'asymptotic freedom', 'string model', 'finite temperature, high', 'expansion 1/N', 'critical phenomena'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504043'] | ['Recently we have shown that a phase transition occurs in the leading and subleading approximation of the large N limit in rigid strings coupled to long range Kalb-Ramond interactions. The disordered phase is essentially the Nambu-Goto-Polyakov string theory while the ordered phase is a new theory. In this letter we c... | ['1995-04-10'] |
15,777 | ['eng'] | ['Antoniadis, Ignatios', 'Ferrara, Sergio', 'Gava, E', 'Narain, Kumar S', 'Taylor, T R'] | ['Perturbative prepotential and monodromies in N=2 heterotic superstring'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'effective action', 'potential', 'perturbation theory, higher-order', 'field theory, orbifold', 'moduli space', 'duality, transformation', 'braid group', 'geometry, algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504034'] | ['We discuss the prepotential describing the effective field theory of N=2 heterotic superstring models. At the one loop-level the prepotential develops logarithmic singularities due to the appearance of charged massless states at particular surfaces in the moduli space of vector multiplets. These singularities modify ... | ['1995-04-07'] |
15,778 | ['eng'] | ["D'Alwis, S P", 'Ohta, N'] | ['Thermodynamics of quantum fields in black hole backgrounds'] | ['Particle Physics - Theory'] | ['black hole, entropy', 'field theory, scalar', 'field theory, Dirac', 'background, static', 'space, optical', 'entropy, correction', 'high temperature expansion', 'thermodynamics', 'energy', 'space-time, Rindler', 'field theory, Liouville'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504033'] | ['We discuss the relation between the micro-canonical and the canonical ensemble for black holes, and highlight some problems associated with extreme black holes already at the classical level. Then we discuss the contribution of quantum fields and demonstrate that the partition functions for scalar and Dirac (Majorana... | ['1995-04-07'] |
15,779 | ['eng'] | ['Brignole, A', 'Feruglio, F', 'Zwirner, F'] | ['Higgs and super-Higgs effects with naturally vanishing vacuum energy'] | ['Particle Physics - Theory'] | ['supergravity', 'symmetry, spontaneously broken', 'vacuum state', 'postulated particle, Goldstino', 'potential, Kaehler'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504032'] | ['We construct N=1 supergravity models where the gauge symmetry and supersymmetry are both spontaneously broken, with naturally vanishing classical vacuum energy and unsuppressed Goldstino components along gauge non-singlet directions. We discuss some physically interesting situations where such a mechanism could play ... | ['1995-04-07'] |
15,780 | ['eng'] | ['Kanti, Panagiota', 'Tamvakis, Kyriakos'] | ["Classical moduli O($\\alpha$') hair"] | ['Particle Physics - Theory'] | ['string model', 'gravitation', 'moduli space', 'field theory, dilaton', 'black hole, hair', 'effective action', 'postulated particle, axion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504031'] | ["We extend existing treatments of black hole solutions in String Gravity to include moduli fields. We compute the external moduli and dilaton hair, as well as of their associated axions,to O(\\alpha') in the framework of the loop corrected superstring effective action for a Kerr-Newman black hole background."] | ['1995-04-07'] |
15,781 | ['eng'] | ['Brunelli, J C', 'Das, A'] | ['Properties of nonlocal charges in the supersymmetric two boson hierarchy'] | ['Particle Physics - Theory'] | ['differential equations, hierarchy', 'operator, Lax', 'integrability', 'supersymmetry', 'charge, nonlocal', 'operator, algebra', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504030'] | ['We obtain the conserved, nonlocal charges for the supersymmetric two boson hierarchy from fractional powers of its Lax operator. We show that these charges reduce to the ones of the supersymmetric KdV system under appropriate reduction. We study the algebra of the nonlocal, local and supersymmetry charges with respec... | ['1995-04-07'] |
15,782 | ['eng'] | ['Mirzabekian, A G', 'Vilkovisky, G A'] | ['The one-loop form factors in the effective action, and production of coherent gravitons from the vacuum'] | ['Particle Physics - Theory'] | ['quantum gravity', 'effective action', 'form factor', 'vacuum state', 'tensor, energy-momentum', 'gravitational radiation', 'effect, back reaction', 'Bianchi identity', 'postulated particle, graviton', 'graviton, production', 'production, graviton'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504028'] | ['We present the solution of the problem of the 1/\\Box, \\Box \\to 0, asymptotic terms discovered in the one-loop form factors of the gravitational effective action. Owing to certain constraints among their coefficients, which we establish, these terms cancel in the vacuum stress tensor and do not violate the asymptot... | ['1995-04-07'] |
15,783 | ['eng'] | ['Sen, A'] | ['String string duality conjecture in six dimensions and charged solitonic strings'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'spontaneous compactification', 'effective action', 'field theory, soliton', 'field theory, conformal', 'dimension, 10', 'dimension, 6'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504027'] | ['It has recently been conjectured that the type IIA string theory compactified on K3 and the heterotic string theory compactified on a four dimensional torus describe identical string theories. The fundamental heterotic string can be regarded as a non-singular soliton solution of the type IIA string theory with a semi... | ['1995-04-07'] |
15,784 | ['eng'] | ['Tachibana, M'] | ['Quantum mechanics of dynamical zero mode in QCD$_{1+1}$ on the light-cone'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'fermion', 'dimension, 2', 'quantization, constraint', 'Hamiltonian formalism', 'zero mode', 'ground state'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504026'] | ['Motivated by the work of Kalloniatis, Pauli and Pinsky, we consider the theory of light-cone quantized QCD_{1+1} on a spatial circle with periodic and anti-periodic boundary conditions on the gluon and quark fields respectively. This approach is based on Discretized Light-Cone Quantization (DLCQ). We investigate the ... | ['1995-04-07'] |
15,785 | ['eng'] | ['Gates, S J', 'Rana, L'] | ['A theory of spinning particles for large n-extended supersymmetry'] | ['Particle Physics - Theory'] | ['particle, relativistic', 'particle, massive', 'massive, particle', 'particle, massless', 'massless, particle', 'supersymmetry', 'spin', 'expansion 1/N'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504025'] | ['An explicit construction of theories of spinning particles, both massive and massless, is given with arbitrary extended supersymmetry on the world-line. As an application of our results, we give a universal description of 3D (and via truncation all lower dimensional) supersymmetric scalar multiplets with arbitrary N-... | ['1995-04-07'] |
15,786 | ['eng'] | ['Elizalde, E', 'Loustó, C O', 'Odintsov, S D', 'Romeo, A'] | ['GUTs in curved spacetime'] | ['Particle Physics - Theory'] | ['grand unified theory', 'coupling constant', 'gravitation, fundamental constant', 'space-time', 'gauge field theory, O(N)', 'potential', 'renormalization group', 'quantum gravity', 'effective Lagrangian', 'asymptotic freedom', 'field equations, solution', 'gravitation, conformal', 'numerical calculations', 'bibliograp... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504014'] | ['The running coupling constants (in particular, the gravitational one) are studied in asymptotically free GUTs and in finite GUTs in curved spacetime, with explicit examples. The running gravitational coupling is used to calculate the leading quantum GUT corrections to the Newtonian potential, which turn out to be of ... | ['1995-04-10'] |
15,787 | ['eng'] | ['Baulieu, L'] | ['On the symmetries of topological quantum field theories'] | ['Particle Physics - Theory'] | ['field theory, topological', 'symmetry, gauge', 'symmetry, Becchi-Rouet-Stora', 'ghost', 'gauge field theory', 'gauge fixing'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504015'] | ['We display properties of the general formalism which associates to any given gauge symmetry a topological action and a system of topological BRST and anti-BRST equations. We emphasize the distinction between the antighosts of the geometrical BRST equations and the antighosts occuring in field theory. We propose a tra... | ['1995-04-10'] |
15,788 | ['eng'] | ['Sochichiu, C'] | ['On the canonical quantization of anomalous SU(n) chiral Yang-Mills models'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'symmetry, chiral', 'anomaly', 'quantization', 'Wess-Zumino term', 'invariance, gauge'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504016'] | ['Canonical quantization of anomalous SU(N) Yang-Mills models is considered. It is shown that the gauge invariance of the quantum theory can be saved in spite of degeneracy of the Wess-Zumino action.'] | ['1995-04-10'] |
15,789 | ['eng'] | ['Kim, J D'] | ['Boundary reflection matrix in perturbative quantum field theory'] | ['Particle Physics - Theory'] | ['field theory, Toda', 'field theory, affine', 'integrability', 'two-point function', 'perturbation theory', 'boundary condition', 'sinh-Gordon equation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504018'] | ["We study boundary reflection matrix for the quantum field theory defined on a half line using Feynman's perturbation theory. The boundary reflection matrix can be extracted directly from the two-point correlation function. This enables us to determine the boundary reflection matrix for affine Toda field theory with t... | ['1995-04-10'] |
15,790 | ['eng'] | ['Hawking, Stephen William', 'Ross, S F'] | ['Duality between electric and magnetic black holes'] | ['Particle Physics - Theory'] | ['black hole, electric', 'black hole, magnetic', 'duality', 'potential, chemical', 'charge', 'approximation, quasiclassical', 'black hole, pair production', 'pair production, black hole', 'entropy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504019'] | ['A number of attempts have recently been made to extend the conjectured S duality of Yang Mills theory to gravity. Central to these speculations has been the belief that electrically and magnetically charged black holes, the solitons of quantum gravity, have identical quantum properties. This is not obvious, because a... | ['1995-04-10'] |
15,791 | ['eng'] | ['Parwani, R R'] | ['On chiral symmetry breaking by external magnetic fields in QED$_{3}$'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'dimension, 3', 'symmetry breaking, chiral', 'magnetic field, external field', 'parity, invariance', 'invariance, parity', 'Dirac equation', 'zero mode', 'radiative correction', 'dimension, 4'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504020'] | ['A recent result of Gusynin, Miransky and Shovkovy concerning chiral symmetry breaking by a constant external magnetic field in parity-invariant three-dimensional QED is generalised to the case of inhomogeneous fields by relating the phenomenon to the zero modes of the Dirac equation. Virtual photon radiative correcti... | ['1995-04-10'] |
15,792 | ['eng'] | ['Kiem, Y H', 'Park, D'] | ['Static and dynamic analysis of a massless scalar field coupled with a class of gravity theories'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'field theory, scalar', 'field theory, massless', 'massless, field theory', 'black hole', 'charge, scalar', 'critical phenomena', 'field equations, solution', 'gauge, conformal', 'Einstein equation, any-dimensional'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504021'] | ['General static solutions for a massless scalar field coupled to a class of effectively 2-d gravity theories continuously connecting spherically symmetric d-dimensional Einstein gravity (d >3) and the CGHS model are analytically obtained. They include black holes and point scalar charge solutions with naked singularit... | ['1995-04-10'] |
15,793 | ['eng'] | ['Solodukhin, S N'] | ['One-loop renormalization of black hole entropy due to non-minimally coupled matter'] | ['Particle Physics - Theory'] | ['black hole, entropy', 'renormalization', 'effective action', 'coupling, gravitation', 'gravitation, coupling', 'matter, scalar', 'path integral, Euclidean', 'field equations, instanton', 'expansion, heat kernel', 'partition function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504022'] | ['The quantum entanglement entropy of an eternal black hole is studied. We argue that the relevant Euclidean path integral is taken over fields defined on \\alpha-fold covering of the black hole instanton. The statement that divergences of the entropy are renormalized by renormalization of gravitational couplings in th... | ['1995-04-10'] |
15,794 | ['eng'] | ['Larsen, A L', 'Sánchez, N'] | ['Strings and multi-strings in black hole and cosmological spacetimes'] | ['Particle Physics - Theory'] | ['black hole', 'dimension, 3', 'string model', 'astrophysics', 'quantization', 'space-time, de Sitter', 'space-time, anti-de Sitter', 'mass spectrum, string', 'string, mass spectrum', 'space-time, Robertson-Walker', 'effect, fine structure', 'numerical calculations', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504007'] | ['Recent results on classical and quantum strings in a variety of black hole and cosmological spacetimes, in various dimensions, are presented. The curved backgrounds under consideration include the 2+1 black hole anti de Sitter spacetime and its dual, the black string, the ordinary D\\geq 4 black holes with or without... | ['1995-04-05'] |
15,795 | ['eng'] | ['Zhang, R B', 'Wang, B L', 'Carey, A L', 'McCarthy, J'] | ['Topological quantum field theory and Seiberg-Witten monopoles'] | ['Particle Physics - Theory'] | ['field theory, topological', 'dimensional reduction', 'partition function', 'field theory', 'dimension, 3', 'field equations, monopole'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504005'] | ["A topological quantum field theory is introduced which reproduces the Seiberg-Witten invariants of four-manifolds. Dimensional reduction of this topological field theory leads to a new one in three dimensions. Its partition function yields a three-manifold invariant, which can be regarded as the Seiberg-Witten versio... | ['1995-04-05'] |
15,796 | ['eng'] | ['Ochiai, T'] | ['Multi-instanton effect in two dimensional QCD'] | ['Particle Physics - Theory'] | ['gauge field theory, U(N)', 'dimension, 2', 'field equations, instanton', 'spectral representation', 'critical phenomena', 'partition function', 'effective action', 'numerical calculations', 'expansion 1/N'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504004'] | ["We analyze multi-instanton sector in two dimensional U(N) Yang-Mills theory on a sphere. We obtain a contour intregrals representation of the multi-instanton amplitude and find ``neutral'' configurations of the even number instantons are dominant in the large N limit. Using this representation, we calculate 1,2,3,4 b... | ['1995-04-05'] |
15,797 | ['eng'] | ['Ferretti, G'] | ['On the large N limit of 3D and 4D hermitian matrix models'] | ['Particle Physics - Theory'] | ['matrix model', 'dimension, 3', 'dimension, 4', 'renormalization group, fixed point', 'mass, renormalization', 'renormalization, mass', 'coupling constant, renormalization', 'renormalization, coupling constant', 'critical phenomena', 'renormalization, wave function', 'expansion 1/N'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504013'] | ['The large N limit of the hermitian matrix model in three and four Euclidean space-time dimensions is studied with the help of the approximate Renormalization Group recursion formula. The planar graphs contributing to wave function, mass and coupling constant renormalization are identified and summed in this approxima... | ['1995-04-05'] |
15,798 | ['eng'] | ['Steif, A R'] | ['Supergeometry of three dimensional black holes'] | ['Particle Physics - Theory'] | ['black hole, static', 'dimension, 3', 'supersymmetry, geometry', 'group theory, SL(2,R)', 'astrophysics, fundamental constant', 'symmetry, OSp(1/2)', 'string model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504012'] | ['The supergeometry of static 2+1 dimensional black hole solutions is discussed. The geometry of the black hole solutions corresponds to the group manifold SL(2,R) with certain discrete identifications. After imbedding SL(2,R) in the supergroup OSp(1|\\,2;R), the generators of the action of the supergroup which commute... | ['1995-04-05'] |
15,799 | ['eng'] | ['Vasilevich, D V'] | ['On gauge-invariant boundary conditions for 2d gravity with dynamical torsion'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'torsion', 'boundary condition', 'invariance, gauge', 'partition function', 'expansion, heat kernel'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9504011'] | ['In the example of R^2+T^2 gravity on the unit two dimensional disk we demonstrate that in the presence of an independent spin connection it is possible to define local gauge invariant boundary conditions even on boundaries which are not totally geodesic. One-loop partition function and the corresponding heat kernel a... | ['1995-04-05'] |
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