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 |
|---|---|---|---|---|---|---|---|---|
7,100 | ['eng'] | ['Kokorelis, C E'] | ['Theoretical and Phenomenological Aspects of Superstring Theories'] | ['Particle Physics - Theory'] | ['thesis', 'string model, heterotic', 'effective action', 'orbifold', 'moduli space', 'spontaneous compactification, torus', 'vacuum state', 'phase space', 'coupling constant', 'perturbation theory, higher-order', 'duality', 'constraint', 'potential, prepotential', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812061'] | ["We discuss aspects of the heterotic string effective field theories in orbifold constructions of the heterotic string. We calculate the moduli dependence of threshold corrections to gauge couplings in (2,2) symmetric orbifold compactifications. We perform the calculation of the threshold corrections for a particular ... | ['1998-12-08'] |
7,101 | ['eng'] | ['Bordag, M', 'Kirsten, K'] | ['The ground state energy of a spinor field in the background of a finite radius flux tube'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'spinor', 'ground state, energy', 'renormalization', 'magnetic field, background field', 'flux tube, background', 'asymptotic expansion', 'Lippmann-Schwinger equation', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812060'] | ['We develop a formalism for the calculation of the ground state energy of a spinor field in the background of a cylindrically symmetric magnetic field. The energy is expressed in terms of the Jost function of the associated scattering problem. Uniform asymptotic expansions needed are obtained from the Lippmann-Schwing... | ['1998-12-08'] |
7,102 | ['eng'] | ['Lambiase, G', 'Nesterenko, V V', 'Bordag, M'] | ['Casimir Energy of a Ball and Cylinder in the $\\zeta$ Function Technique'] | ['Particle Physics - Theory'] | ['energy, Casimir', 'regularization, zeta function', 'vacuum state, energy', 'electromagnetic', 'sphere, boundary condition', 'cylinder, boundary condition', 'asymptotic expansion', 'photon, velocity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812059'] | ['A simple method is proposed to construct the spectral zeta functions required for calculating the electromagnetic vacuum energy with boundary conditions given on a sphere or on an infinite cylinder. When calculating the Casimir energy in this approach no exact divergencies appear and no renormalization is needed. The... | ['1998-12-08'] |
7,103 | ['eng'] | ['Amorim, R', 'Braga, N R F'] | ['Compensating fields, bosonization and soldering in $QCD^{2}$'] | ['Particle Physics - Theory'] | ['quantum chromodynamics', 'dimension, 2', 'bosonization', 'antifield', 'current, chiral', 'transformation, gauge', 'fibre bundle'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812058'] | ['An interesting tool for investigating the quantum features of a field theory is the introduction of compensating fields. For instance, the anomalous divergence of the chiral current can be calculated in the field-antifield formalism from an extended form of QCD with compensating fields. The interpretation of this pro... | ['1998-12-08'] |
7,104 | ['eng'] | ['Solodukhin, S N'] | ["Conformal description of horizon's states"] | ['Particle Physics - Theory'] | ['black hole, horizon', 'space-time, boundary condition', 'diffeomorphism', 'transformation, conformal', 'dimension, 2', 'algebra, Virasoro', 'relativity theory, general', 'entropy', 'central charge', 'zero mode', 'any-dimensional'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812056'] | ["The existence of black hole horizon is considered as a boundary condition to be imposed on the fluctuating metrics. The coordinate invariant form of the condition for class of spherically symmetric metrics is formulated. The diffeomorphisms preserving this condition act in (arbitrary small) vicinity of the horizon an... | ['1998-12-08'] |
7,105 | ['eng'] | ['Marino, M', 'Moore, G', 'Peradze, G'] | ['Superconformal invariance and the geography of four-manifolds'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'supersymmetry', 'correlation function', 'invariance, conformal', 'fixed point', 'field theory, topological', 'path integral', 'analytic properties', 'sum rule', 'anomaly', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812055'] | ['The correlation functions of supersymmetric gauge theories on a four-manifold X can sometimes be expressed in terms of topological invariants of X. We show how the existence of superconformal fixed points in the gauge theory can provide nontrivial information about four-manifold topology. In particular, in the exampl... | ['1998-12-08'] |
7,106 | ['eng'] | ['Berman, D S'] | ['The M five brane on a torus'] | ['Particle Physics - Theory'] | ['talk, Corfu 1998/09/21', 'membrane model, D-brane', 'M-theory', 'duality', 'transformation, SL(2,Z)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812053'] | ['The D-3 brane is examined from the point of view of the wrapped M-theory five brane on a torus. In particular, the S-dual versions of the 3-brane are identified as coming from different gauge choices of the auxiliary field that is introduced in the PST description of the five brane world volume theory.'] | ['1998-12-08'] |
7,107 | ['eng'] | ['Lukas, A', 'Ovrut, B A', 'Waldram, D'] | ['Cosmology and Heterotic M-Theory in Five-Dimensions'] | ['Particle Physics - Theory'] | ['lectures, Peniscola 1998/06/22', 'M-theory, heterotic', 'dimension, 5', 'astrophysics, model', 'effective action', 'supergravity', 'vacuum state', 'domain wall, BPS', 'space, Calabi-Yau', 'dimension, 11'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812052'] | ['In these lectures, we present cosmological vacuum solutions of Horava-Witten theory and discuss their physical properties. We begin by deriving the five-dimensional effective action of strongly coupled heterotic string theory by performing a reduction, on a Calabi-Yau three-fold, of M--theory on S1/Z2. The effective ... | ['1998-12-08'] |
7,108 | ['eng'] | ['Ketov, S V'] | ['Born-Infeld-Goldstone superfield actions for gauge-fixed D-5- and D-3-branes in 6d'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'dimension, 6', 'Born-Infeld model', 'supersymmetry', 'dimensional reduction', 'dimension, 4', 'sigma model, nonlinear', 'symmetry, spontaneously broken', 'group theory, SU(4)', 'group theory, SO(1,5)', 'multiplet', 'superspace', 'Goldstone particle', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812051'] | ["The supersymmetric Born-Infeld actions describing gauge-fixed D-5- and D-3-branes in ambient six-dimensional (6d) spacetime are constructed in superspace. A new 6d action is the (1,0) supersymmetric extension of the 6d Born-Infeld action. It is related via dimensional reduction to another remarkable 4d action describ... | ['1998-12-08'] |
7,109 | ['eng'] | ['Aoki, K', 'Horikoshi, A', 'Taniguchi, M A', 'Terao, H'] | ['Non-Perturbative Renormalization Group and Quantum Tunnelling'] | ['Particle Physics - Theory'] | ['talk, Faro 1998/09/10', 'quantum mechanics', 'tunneling', 'renormalization group, nonperturbative', 'model, oscillator', 'energy, vacuum state', 'energy, gap', 'supersymmetry, dynamically broken', 'effective potential', 'instanton', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812050'] | ['The non-perturbative renormalization group (NPRG) is applied to analysis of tunnelling in quantum mechanics. The vacuum energy and the energy gap of anharmonic oscillators are evaluated by solving the local potential approximated Wegner-Houghton equation (LPA W-H eqn.). We find that our results are very good in a str... | ['1998-12-08'] |
7,110 | ['eng'] | ['Denef, F'] | ['Attractors at weak gravity'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'gravitation', 'approximation, weak coupling', 'string model, effective action', 'spontaneous compactification, Calabi-Yau', 'soliton, BPS', 'field equations, solution', 'black hole, massless', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812049'] | ["We study the attractor mechanism in low energy effective D=4, N=2 Yang-Mills theory weakly coupled to gravity, obtained from the effective action of type IIB string theory compactified on a Calabi-Yau manifold. Using special is derived, and from this the attractor equations in the weak gravity limit. The effective Ne... | ['1998-12-08'] |
7,111 | ['eng'] | ['Parkhomenko, S E'] | ['On the Quantum Poisson-Lie T-duality and Mirror Symmetry'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry, superfield', 'field theory, conformal', 'Wess-Zumino-Witten model', 'duality, transformation', 'symmetry, mirror', 'current', 'operator product expansion', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812048'] | ['Poisson-Lie T-duality in the quantum N=2 superconformal WZNW models is considered. The Poisson-Lie T-duality transformation rules of the super-Kac-Moody algebra currents are found from the conjecture that similar to the classical case quantum Poisson-Lie $T$-duality is given by an auto-morphism which interchange the ... | ['1998-12-08'] |
7,112 | ['eng'] | ['Nakatsu, T', 'Yokoi, N'] | ['Comments on Hamiltonian Formalism of Ads/CFT Correspondence'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'field theory, conformal', 'field theory, scalar', 'dimension, 2', 'dimension, 1', 'Hamiltonian formalism', 'operator, algebra', 'path integral', 'quantization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812047'] | ['As a toy model to search for Hamiltonian formalism of the AdS/CFT correspondence, we examine a Hamiltonian formulation of the AdS_2/CFT_1 correspondence emphasizing unitary representation theory of the symmetry. In the course of a canonical quantization of the bulk scalars, a particular isomorphism between the unitar... | ['1998-12-08'] |
7,113 | ['eng'] | ['De Boer, J', 'Ooguri, H', 'Robins, H', 'Tannenhauser, J'] | ['String Theory on $AdS_{3}$'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'dimension, 3', 'string model', 'field theory, conformal', 'operator, vertex', 'algebra, Virasoro', 'correlation function', 'Ward identity', 'operator product expansion', 'central charge', 'quantization, 2'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812046'] | ['It was shown by Brown and Henneaux that the classical theory of gravity on AdS_3 has an infinite-dimensional symmetry group forming a Virasoro algebra. More recently, Giveon, Kutasov and Seiberg (GKS) constructed the corresponding Virasoro generators in the first-quantized string theory on AdS_3. In this paper, we ex... | ['1998-12-07'] |
7,114 | ['eng'] | ['De Faria-Borges, P', 'Boschi-Filho, H', 'Farina, C'] | ['Quasiperiodic fields and Bose-Einstein condensation'] | ['Particle Physics - Theory'] | ['boson, statistics', 'partition function', 'boundary condition', 'finite temperature', 'boson, condensation', 'fermion, condensation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812045'] | ['We construct a partition function for fields obeying a quasiperiodic boundary condition at finite temperature, $\\psi(0;\\vec x)= e^{i\\theta} \\psi(\\beta;\\vec x)$, which interpolate continously that ones corresponding to bosons and fermions and discuss the possibility of condensation for these fields.'] | ['1998-12-07'] |
7,115 | ['eng'] | ['Polyakov, D G'] | ['On the NSR formulation of String Theory on $AdS_{5} X S^{5}$'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'dimension, 5', 'space-time, S(5)', 'string model', 'sigma model', 'supersymmetry', 'membrane model', 'scattering amplitude, momentum dependence'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812044'] | ['We discuss the NSR formulation of the superstring action on AdS_5 X S^5 proposed recently by Kallosh and Tseytlin in the Green-Schwarz formalism.We show that the stress-energy tensor corresponding to the NSR action for AdS superstring contains the branelike terms, corresponding to exotic massless vertex operators (re... | ['1998-12-07'] |
7,116 | ['eng'] | ['Rama, S K', 'Sarkar, T'] | ['Holographic Principle during Inflation and a Lower Bound on Density Fluctuations'] | ['Particle Physics - Theory'] | ['inflationary universe', 'holography', 'density, fluctuation', 'lower limit', 'decay, inflaton'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812043'] | ['We apply the holographic principle during the inflationary stage of our universe. Where necessary, we illustrate the analysis in the case of new and extended inflation which, together, typify generic models of inflation. We find that in the models of extended inflation type, and perhaps of new inflation type also, th... | ['1998-12-07'] |
7,117 | ['eng'] | ['Riccioni, F', 'Sagnotti, A'] | ['Self-dual Tensors in Six-Dimensional Supergravity'] | ['Particle Physics - Theory'] | ['talk, Trieste 1998/04/01', 'talk, Hamburg 1998/09/07', 'talk, Como 1998/09/07', 'supergravity', 'dimension, 6', 'field theory, tensor', 'duality', 'anomaly', 'tensor, energy-momentum', 'conservation law', 'Lagrangian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812042'] | ['We review some properties of the field equations of six-dimensional (1,0) supergravity coupled to tensor and vector multiplets, and in particular their relation to covariant and consistent anomalies and a peculiar Noether identity for the energy-momentum tensor. We also describe a lagrangian formulation for this syst... | ['1998-12-07'] |
7,118 | ['eng'] | ['Itoh, T', 'Kato, H'] | ['Magnetization and dynamically induced finite densities in three-dimensional Chern-Simons QED'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'dimension, 3', 'Chern-Simons term', 'effective action', 'expansion 1/N', 'effect, magnetic', 'density, finite', 'vacuum polarization', 'charge, condensation', 'fermion, condensation', 'symmetry breaking, U(N)', 'fermion, mass generation', 'Dyson-Schwinger equation, solution', 'propagator, r... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812041'] | ['We show that the spontaneous magnetization occurs as realization of finite density vacua, those are the lowest Landau levels fully or half occupied by fermions, in (2+1)-dimensional QED with a Chern-Simons term. The charge condensation is shown to appear so as to complement the fermion anti-fermion condensate which b... | ['1998-12-07'] |
7,119 | ['eng'] | ['Blasi, A', 'Maggiore, N', 'Sorella, S P', 'Vilar, L C Q'] | ['Renormalizability of Nonrenormalizable Field Theories'] | ['Particle Physics - Theory'] | ['field theory, nonrenormalizable', 'transformation, nonlinear', 'equivalence theorem', 'transformation, Becchi-Rouet-Stora', 'gauge fixing', 'field theory, scalar', 'cohomology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812040'] | ['We give a simple and elegant proof of the Equivalence Theorem, stating that two field theories related by nonlinear field transformations have the same S matrix. We are thus able to identify a subclass of nonrenormalizable field theories which are actually physically equivalent to renormalizable ones. Our strategy is... | ['1998-12-07'] |
7,120 | ['eng'] | ['Morales, J F', 'Plefka, J C', 'Scrucca, Claudio A', 'Serone, M', 'Waldron, A K'] | ['Spin dependent D-brane interactions and scattering amplitudes in matrix theory'] | ['Particle Physics - Theory'] | ['talk, Corfu 1998/09/21', 'matrix model', 'membrane model, D-brane', 'D-brane, interaction', 'scattering amplitude', 'spin, dependence', 'supersymmetry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812039'] | ['Spin interactions beteween two moving Dp-branes are analyzed using the Green-Schwarz formalism of boundary states. This approach turns out to be extremely efficient to compute all the spin effects related by supersymmetry to the leading v^4/r^7-p term. All these terms are shown to be scale invariant, supporting a mat... | ['1998-12-07'] |
7,121 | ['eng'] | ['Akhmedov, E T'] | ['D-instantons probing D3-branes and the AdS/CFT correspondence'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'field theory, conformal', 'membrane model, D-brane', 'p-brane, 3', 'instanton', 'effective action', 'supersymmetry, superfield', 'matrix model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812038'] | ['D-instantons are considered as a probe of coinciding $N$ D3-branes. They can feel an external metric via the commutator terms in their effective action. We show that when the D-instantons are separated from the D3-branes, the metric which is probed at the one loop level, {\\it exactly} coincides with that of the BPS ... | ['1998-12-07'] |
7,122 | ['eng'] | ['Schwarz, J H'] | ['Introduction to M Theory and AdS/CFT Duality'] | ['Particle Physics - Theory'] | ['talk, Corfu 1998/09/21', 'M-theory', 'space-time, anti-de Sitter', 'field theory, conformal', 'string model', 'supersymmetry', 'approximation, strong coupling', 'dimension, 11', 'duality', 'membrane model, D-brane', 'p-brane, 3', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812037'] | ['An introductory survey of some of the developments that have taken place in superstring theory in the past few years is presented. The main focus is on three particular dualities. The first one is the appearance of an 11th dimension in the strong coupling limit of the type IIA theory, which give rise to M theory. The... | ['1998-12-04'] |
7,123 | ['eng'] | ['Antonuccio, F'] | ['Hyperbolic Numbers and the Dirac Spinor'] | ['Particle Physics - Theory'] | ['group theory, Lorentz', 'group theory, representation', 'spinor'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812036'] | ['A representation of the Lorentz group is given in terms of 4 X 4 matrices defined over the hyperbolic number system. The transformation properties of the corresponding four component spinor are studied, and shown to be equivalent to the transformation properties of the complex Dirac spinor. As an application, we show... | ['1998-12-04'] |
7,124 | ['eng'] | ['Khavaev, A', 'Pilch, K', 'Warner, N P'] | ['New Vacua of Gauged $N$=8 Supergravity in Five Dimensions'] | ['Particle Physics - Theory'] | ['supergravity', 'dimension, 5', 'vacuum state', 'gauge field theory, Yang-Mills', 'field theory, conformal', 'renormalization group', 'critical phenomena', 'dimension, 10', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812035'] | ['We analyze a particular SU(2) invariant sector of the scalar manifold of gauged N=8 supergravity in five dimensions, and find all the critical points of the potential within this sector. The critical points give rise to Anti-de Sitter vacua, and preserve at least an SU(2) gauge symmetry. Consistent truncation implies... | ['1998-12-04'] |
7,125 | ['eng'] | ['Gibbons, G W', 'Townsend, P K'] | ['Black Holes and Calogero Models'] | ['Particle Physics - Theory'] | ['black hole, Reissner-Nordstroem', 'symmetry, SU(1,1/2)', 'Calogero model', 'invariance, conformal', 'supersymmetry', 'expansion 1/N', 'membrane model, D-brane'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812034'] | ['We argue that the large $n$ limit of the $n$-particle $SU(1,1|2)$ superconformal Calogero model provides a microscopic description of the extreme Reissner-Nordstr{ö}m black hole in the near-horizon limit.'] | ['1998-12-04'] |
7,126 | ['eng'] | ['Ader, J P', 'Biet, F', 'Noirot, Y'] | ['Supersymmetric structure of the induced $W$ gravities'] | ['Particle Physics - Theory'] | ['gravitation, induced', 'symmetry, W(N)', 'supersymmetry', 'field theory, topological', 'field theory, action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812033'] | ['We derive the supersymmetric structure present in W-gravities which has been already observed in various contexts as Yang-Mills theory, topological field theories, bosonic string and chiral W_{3}-gravity. This derivation which is made in the geometrical framework of Zucchini, necessitates the introduction of an appro... | ['1998-12-04'] |
7,127 | ['eng'] | ['Henningson, M', 'Skenderis, K'] | ['Holography and the Weyl anomaly'] | ['Particle Physics - Theory'] | ['talk, Buckow 1998/09/01', 'talk, Goeteborg 1998/08/20', 'talk, Buckow 1998/09/01', 'talk, Corfu 1998/09/21', 'field theory, conformal', 'anomaly, Weyl', 'gravitation', 'any-dimensional', 'partition function', 'space-time', 'boundary condition'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812032'] | ['We review our calculation of the Weyl anomaly for d-dimensional conformal field theories that have a description in terms of a (d + 1)-dimensional gravity theory.'] | ['1998-12-04'] |
7,128 | ['eng'] | ['Sen, A'] | ['BPS D-branes on Non-supersymmetric Cycles'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, BPS', 'moduli space', 'orbifold', 'field theory, conformal', 'gauge field theory, U(N)', 'string model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812031'] | ['In certain regions of the moduli space of K3 and Calabi-Yau manifolds, D-branes wrapped on non-supersymmetric cycles may give rise to stable configurations. We show that in the orbifold limit, some of these stable configurations can be described by solvable boundary conformal field theories. The world-volume theory o... | ['1998-12-04'] |
7,129 | ['eng'] | ['Gubarev, F V', 'Polikarpov, M I', 'Zakharov, V I'] | ['Small-size Strings in Abelian Higgs Model'] | ['Particle Physics - Theory'] | ['Higgs model, abelian', 'critical phenomena, confinement', 'potential, monopole', 'static', 'string tension', 'quantum chromodynamics', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812030'] | ['We consider monopole-antimonopole static potential in the confining phase of the Abelian Higgs model and concentrate on the correction to the Coulomb-like potential at short distances R. By minimising numerically the classical energy functional we observe a linear in R correction so that a string-tension term survive... | ['1998-12-04'] |
7,130 | ['eng'] | ['Moshe, M'] | ['Quantum Field Theory in Singular Limits'] | ['Particle Physics - Theory'] | ['lectures, Les Houches 1997/02/24', 'matrix model', 'symmetry, O(N)', 'field theory, vector', 'scaling', 'Feynman graph, higher-order', 'regularization', 'critical phenomena'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812029'] | ['This is a short summary of the phase structure of vector O(N) symmetric quantum field theories in a singular limit, the double scaling limit.It is motivated by the fact that summing up dynamically triangulated random surfaces using Feynman graphs of the O(N) matrix model results in a genus expansion and it provides,i... | ['1998-12-04'] |
7,131 | ['eng'] | ['De Wolfe, O', 'Hauer, T', 'Iqbal, A', 'Zwiebach, B'] | ['Uncovering the Symmetries on [p,q] 7-branes'] | ['Particle Physics - Theory'] | ['membrane model, p-brane', 'p-brane, 7', 'monodromy', 'symmetry, SL(2,Z)', 'string model', 'algebra, Lie', 'operator, determinant', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812028'] | ['We begin a classification of the symmetry algebras arising on configurations of type IIB [p,q] 7-branes. These include not just the Kodaira symmetries that occur when branes coalesce into a singularity, but also algebras associated to other physically interesting brane configurations that cannot be collapsed. We demo... | ['1998-12-04'] |
7,132 | ['eng'] | ['Kutasov, D', 'Larsen, F', 'Leigh, Robert G'] | ['String Theory in Magnetic Monopole Backgrounds'] | ['Particle Physics - Theory'] | ['string model', 'magnetic monopole, background', 'membrane model', 'moduli space', 'field theory, conformal', 'supergravity', 'black hole', 'space-time, anti-de Sitter'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812027'] | ["We discuss string propagation in the near-horizon geometry generated by Neveu-Schwarz fivebranes, Kaluza-Klein monopoles and fundamental strings. When the fivebranes and KK monopoles are wrapped around a compact four-manifold dynamics is expected to correspond to a local two dimensional conformal field theory. We det... | ['1998-12-03'] |
7,133 | ['eng'] | ['Akemann, G', 'Grimm, R', 'Hasler, M', 'Herrmann, C F'] | ['N=2 central charge superspace and a minimal supergravity multiplet'] | ['Particle Physics - Theory'] | ['central charge', 'superspace', 'supergravity', 'diffeomorphism', 'gauge field theory, SU(2)', 'differential forms'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812026'] | ['We extend the notion of central charge superspace to the case of local supersymmetry. Gauged central charge transformations are identified as diffeomorphisms at the same footing as space-time diffeomorphisms and local supersymmetry transformations. Given the general structure we then proceed to the description of a p... | ['1998-12-03'] |
7,134 | ['eng'] | ['López, E'] | ['A Family of $N=1 SU(N)^{k}$ Theories from Branes at Singularities'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)**M', 'membrane model, D-brane', 'space-time, anti-de Sitter', 'field theory, conformal', 'singularity', 'moduli space', 'string model', 'baryon', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812025'] | ['We obtain N=1 SU(N)^k gauge theories with bifundamental matter and a quartic superpotential as the low energy theory on D3-branes at singular points. These theories generalize that on D3-branes at a conifold point, studied recently by Klebanov and Witten. For k=3 the defining equation of the singular point is that of... | ['1998-12-03'] |
7,135 | ['eng'] | ['Ganor, O J'] | ['U-duality Twists and Possible Phase Transitions in 2+1D Supergravity'] | ['Particle Physics - Theory'] | ['supergravity', 'critical phenomena', 'dimension, 3', 'M-theory', 'spontaneous compactification, torus', 'duality', 'moduli space, SU(2,1)/U(2)', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812024'] | ['We study 2+1D toroidal compactifications of M-theory with twists in the U-duality group. These compactifications realize many symmetric-manifolds from the classification of 2+1D extended supergravity moduli-spaces. We then focus on the moduli-space $SU(2,1)/U(2)$ obtained by dimensional reduction of pure N=2 supergra... | ['1998-12-03'] |
7,136 | ['eng'] | ['Franco, D H T'] | ['On the trace identity in a model with broken symmetry'] | ['Particle Physics - Theory'] | ['space-time', 'symmetry breaking, chiral', 'fermion', 'meson', 'tensor, energy-momentum', 'Ward identity', 'radiative correction', 'anomaly', 'renormalization group'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812023'] | ['Considering the simple chiral fermion meson model when the chiral symmetry is explicitly broken, we show the validity of a trace identity -- to all orders of perturbation theory -- playing the role of a Callan-Symanzik equation and which allow us to identify directly the breaking of dilatations with the trace of the ... | ['1998-12-03'] |
7,137 | ['eng'] | ['Arnone, S', 'Fusi, C', 'Yoshida, K'] | ['Exact renormalization group equation in presence of rescaling anomaly'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'renormalization group, beta function', 'scaling', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812022'] | ["Wilson's approach to renormalization group is reanalyzed for supersymmetric Yang -Mills theory. Usual demonstration of exact renormalization group equation must be modified due to the presence of the so called Konishi anomaly under the rescaling of superfields. We carry out the explicit computation for N=1 SUSY Yang-... | ['1998-12-03'] |
7,138 | ['eng'] | ['Kol, B'] | ['Thermal Monopoles'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'charged particle', 'charge, high', 'supersymmetry', 'monopole', 'entropy', 'mass spectrum', 'binding energy', 'radiation, Hawking', 'string model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812021'] | ['Evidence is given that some particles carrying large charges in gauge theories, including 4d N=4 SU(3), have macroscopic entropy. The ground state entropy is expressed in terms of the charges and is extensive in them. The mass gap for excitation is estimated and is larger than the binding energy. The question of the ... | ['1998-12-03'] |
7,139 | ['eng'] | ['Urries, F J', 'Julve, J'] | ['Higher-derivative scalar field theories as constrained second-order theories'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'derivative, high', 'constraint', 'electromagnetic field', 'gravitation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812020'] | ["As an alternative to the covariant Ostrogradski method, we show that higher-derivative relativistic Lagrangian field theories can be reduced to second differential-order by writing them directly as covariant two-derivative theories involving Lagrange multipliers and new fields. Notwithstanding the intrinsic non-covar... | ['1998-12-03'] |
7,140 | ['eng'] | ['Suzuki, H'] | ['Simple Evaluation of Chiral Jacobian with Overlap Dirac Operator'] | ['Particle Physics - Theory'] | ['operator, Dirac', 'anomaly, chiral', 'fermion, lattice field theory', 'continuum limit', 'gauge field theory, background field'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812019'] | ["The chiral Jacobian, which is defined with Neuberger's overlap Dirac operator of lattice fermion, is explicitly evaluated in the continuum limit without expanding it in the gauge coupling constant. Our calculational scheme is simple and straightforward. We determine a coefficient of the chiral anomaly for general val... | ['1998-12-03'] |
7,141 | ['eng'] | ['Padmanabhan, T'] | ['Conceptual issues in combining general relativity and quantum theory'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'quantum gravity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812018'] | ['Points of conflict between the principles of general relativity and quantum theory are highlighted. I argue that the current language of QFT is inadequete to deal with gravity and review attempts to identify some of the features which are likely to present in the correct theory of quantum gravity.'] | ['1998-12-03'] |
7,142 | ['eng'] | ['Nojiri, S', 'Odintsov, S D'] | ['Two-Boundaries AdS/CFT Correspondence in Dilatonic Gravity'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'field theory, conformal', 'gravitation', 'field theory, dilaton', 'any-dimensional', 'correlation function', 'boundary condition'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812017'] | ['We discuss dilatonic gravity (bulk theory) from the point of view of (generalized) AdS/CFT correspondence. Self-consistent dilatonic background is considered. It may be understood as two boundaries space where AdS boundary appears as infinite boundary and new (singular) boundary occurs at short distances. The two-poi... | ['1998-12-03'] |
7,143 | ['eng'] | ['Kim, J Y', 'Lee, H W', 'Myung, Y S'] | ['Origin of logarithmic corrections in three-dimensional anti-de Sitter space'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'dimension, 3', 'field equations', 'spin, dependence', 'cross section, correction', 'perturbation theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812016'] | ['We find the origin of logarithmic correction to the absorption cross section by studying the spin--dependent wave equation in three-dimensional anti-de Sitter space(AdS$_3$). It turns out that all test fields($\\psi_{\\nu=1}$) coupled to (1,1), (2,0), (0,2) operator on the boundary at infinity receive logarithmic cor... | ['1998-12-03'] |
7,144 | ['eng'] | ['Pouliot, P'] | ['Molien Function for Duality'] | ['Particle Physics - Theory'] | ['supersymmetry, representation', 'duality', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812015'] | ['The Molien function counts the number of independent group invariants of a representation. For chiral superfields, it is invariant under duality by construction. We illustrate how it calculates the spectrum of supersymmetric gauge theories.'] | ['1998-12-03'] |
7,145 | ['eng'] | ['Sato, T'] | ['Various Supersymmetric Brane Configurations from Superalgebras in Many Types of M-Brane Backgrounds'] | ['Particle Physics - Theory'] | ['M-theory', 'membrane model, p-brane', 'supersymmetry, algebra', 'Kaluza-Klein model, monopole', 'background field'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812014'] | ['We derive superalgebras in many types of supersymmetric M-brane backgrounds. The backgrounds examined here include the cases of the M-wave and the M-Kaluza-Klein monopole. On the basis of the obtained algebras, we deduce all the supersymmetric non-orthogonal intersections of the M-Kaluza-Klein monopole and the M-5-br... | ['1998-12-03'] |
7,146 | ['eng'] | ['Carlip, S'] | ['Black Hole Entropy from Conformal Field Theory in Any Dimension'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'any-dimensional', 'boundary condition, deformation', 'algebra, Virasoro', 'central charge', 'black hole', 'entropy, Hawking'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812013'] | ["When restricted to the horizon of a black hole, the ``gauge'' algebra of surface deformations in general relativity contains a physically important Virasoro subalgebra with a calculable central charge. The fields in any quantum theory of gravity must transform under this algebra; that is, they must admit a conformal ... | ['1998-12-02'] |
7,147 | ['eng'] | ['Witten, Edward'] | ['AdS/CFT Correspondence And Topological Field Theory'] | ['Particle Physics - Theory'] | ['space-time, de Sitter', 'gauge field theory, Yang-Mills', 'supersymmetry', 'field theory, conformal', 'field theory, topological', 'dimension, 4-6', 'Chern-Simons term', 'path integral', 'fibre bundle'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812012'] | ["In ${\\cal N}=4$ super Yang-Mills theory on a four-manifold $M$, one can specify a discrete magnetic flux valued in $H^2(M,\\Z_N)$. This flux is encoded in the AdS/CFT correspondence in terms of a five-dimensional topological field theory with Chern-Simons action. A similar topological field theory in seven dimension... | ['1998-12-02'] |
7,148 | ['eng'] | ['Lu, J X', 'Roy, S'] | ['On the Construction of SL(2,Z) Type IIB 5-Branes'] | ['Particle Physics - Theory'] | ['talk, Trieste 1998/04/01', 'membrane model, p-brane', 'p-brane, 5', 'supersymmetry', 'string model', 'supergravity', 'particle, multiplet'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812011'] | ['This talk reviews our recent work on the construction of SL(2,Z) multiplets of type IIB superfivebranes. We here pay particular attention to the methods employed and some salient features of the solutions.'] | ['1998-12-02'] |
7,149 | ['eng'] | ['Arkani-Hamed, N', 'Schmaltz, M'] | ['Field Theoretic Branes and Tachyons of the QCD String'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'tachyon', 'string model', 'domain wall', 'charged particle', 'flux tube', 'flux, electric'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812010'] | ['Dvali and Shifman have proposed a field-theoretic mechanism for localizing gauge fields to "branes" in higher dimensional spaces using confinement in a bulk gauge theory. The resulting objects have a number of qualitative features in common with string theory D-branes; they support a gauge field and flux strings can ... | ['1998-12-02'] |
7,150 | ['eng'] | ['De Martino, A', 'Moriconi, M'] | ['Boundary $S$-matrix for the Gross-Neveu Model'] | ['Particle Physics - Theory'] | ['Gross-Neveu model', 'boundary condition', 'dimension, 2', 'scattering amplitude', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812009'] | ['We study the scattering theory for the Gross-Neveu model on the half-line. We find the reflection matrices for the elementary fermions, and by fusion we compute the ones for the two-particle bound-states, showing that they satisfy non-trivial bootstrap consistency conditions. We also compute more general reflection m... | ['1998-12-02'] |
7,151 | ['eng'] | ['Hambli, N'] | ['Type IIB Matrix Theory at Two Loops'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'matrix model', 'perturbation theory, higher-order', 'higher-order, 2', 'partition function', 'effective action', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812008'] | ['The IKKT matrix model was proposed to be a non-perturbative formulation of type IIB superstring theory. One of its important consistency criteria is that the leading one-loop $1/r^8$ effective interaction between a cluster of type IIB D-objects should not receive any corrections from higher loop effects for it to des... | ['1998-12-02'] |
7,152 | ['eng'] | ['Danielsson, U H', 'Keski-Vakkuri, E', 'Kruczenski, M'] | ['Vacua, Propagators, and Holographic Probes in AdS/CFT'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'dimension, 3', 'field theory, conformal', 'dimension, 2', 'quantization', 'boundary condition', 'vacuum state', 'propagator', 'gauge field theory, Yang-Mills', 'supergravity', 'confinement', 'flux tube', 'holography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812007'] | ['In this paper we investigate the relation between the bulk and boundary in AdS/CFT. We first discuss the relation between the Poincare and the global vacua, and then study various probes of the bulk from the boundary theory point of view. We derive expressions for retarded propagators and note that objects in free fa... | ['1998-12-02'] |
7,153 | ['eng'] | ['Aguilar, M A', 'Socolovsky, M'] | ['On the Topology of the Symmetry Group of the Standard Model'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(3) x SU(2) x U(1)', 'fermion', 'Higgs model', 'symmetry, transformation', 'symmetry breaking', 'fibre bundle', 'topology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812006'] | ['We study the topological structure of the symmetry group of the standard model, $G_{SM}=U(1)\\times SU(2)\\times SU(3)$. Locally, $G_{SM}\\cong S^1\\times (S^3)^2\\times S^5$. For SU(3), which is an $S^3$ bundle over $S^5$ (and therefore a local product of these spheres) we give a canonical gauge i.e. a canonical set... | ['1998-12-02'] |
7,154 | ['eng'] | ['Klishevich, S M'] | ['Massive Fields of Arbitrary Integer Spin in Symmetrical Einstein Space'] | ['Particle Physics - Theory'] | ['space-time', 'gauge field theory', 'spin, high', 'field theory, action', 'field equations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812005'] | ['We study the propagation of gauge fields with arbitrary integer spins in the symmetrical Einstein space of any dimensionality. We reduce the problem of obtaining a gauge-invariant Lagrangian of integer spin fields in such background to an purely algebraic problem of finding a set of operators with certain features us... | ['1998-12-02'] |
7,155 | ['eng'] | ['Fröhlich, J', 'Marchetti, P A'] | ['Gauge-invariant charged, monopole and dyon fields in gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'gauge field theory, Yang-Mills', 'lattice field theory', 'monopole', 'dyon', 'invariance, gauge', 'Wilson loop', 'partition function', 'duality', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812004'] | ["We propose explicit recipes to construct the euclidean Green functions of gauge-invariant charged, monopole and dyon fields in four-dimensional gauge theories whose phase diagram contains phases with deconfined electric and/or magnetic charges. In theories with only either abelian electric or magnetic charges, our co... | ['1998-12-02'] |
7,156 | ['eng'] | ['Gutperle, M', 'Periwal, V'] | ['The charge radius of a D$p$brane'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'string model', 'tachyon, condensation', 'charge, model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812003'] | ["Sen has shown that tachyon condensation in Dbrane--anti-Dbrane configurations can lead to remarkable connections between string theories. A consequence of his results is that there is a minimal value of the radial coordinate $r_{c} localized to values smaller than $r_{c}.$ At this value of $r_{c}$ the curvature and t... | ['1998-12-02'] |
7,157 | ['eng'] | ['Fujikawa, K'] | ['Comment on anomaly matching in N=1 supersymmetric QCD'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'fermion, flavor', 'supersymmetry, superfield', 'symmetry breaking', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812002'] | ['An attempt is made at a systematic approach to anomaly matching problem in non-Abelian electric-magnetic duality in N=1 supersymmetric QCD. A strategy we employ is somewhat analogous to anomaly analyses in grand unified models where the anomaly cancellation becomes more transparent if one embeds SU(5) multiplets into... | ['1998-12-02'] |
7,158 | ['eng'] | ['Kim, Y W', 'Kim, S K', 'Park, Y J'] | ['Lagrangian Approach of the First Class Constrained Systems'] | ['Particle Physics - Theory'] | ['field theory, vector', 'gauge field theory, U(1)', 'Chern-Simons term', 'constraint', 'Lagrangian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9812001'] | ['We show how to systematically derive the exact form of local symmetries for the abelian Proca and CS models, which are converted into first class constrained systems by the BFT formalism, in the Lagrangian formalism. As results, without resorting to a Hamiltonian formulation we obtain the well-known U(1) symmetry for... | ['1998-12-02'] |
7,159 | ['eng'] | ['Muto, T'] | ['D-branes on Three-dimensional Nonabelian Orbifolds'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'orbifold, nonabelian', 'dimension, 3', 'symmetry, SU(3)', 'group theory, finite', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811258'] | ['We study D-branes on a three complex dimensional nonabelian orbifold ${\\bf C}^3/\\Gamma$ with $\\Gamma$ a finite subgroup of SU(3). We present general formulae which are necessary to obtain the gauge group and the spectrum of the D-brane worldvolume theory for dihedral-like subgroups $\\Delta(3n^2)$ and'] | ['1998-12-01'] |
7,160 | ['eng'] | ["D'Hoker, E", 'Freedman, Daniel Z'] | ['General Scalar Exchange in $AdS_{d+1}$'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'any-dimensional', 'field theory, conformal', 'operator product expansion', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811257'] | ['The scalar field exchange diagram for the correlation function of four scalar operators is evaluated in anti-de Sitter space, $AdS_{d+1}$. The conformal dimensions $\\Delta_i$, $i=1,...,4$ of the scalar operators and the dimension unitarity bound. Techniques similar to those developed earlier for gauge boson exchange... | ['1998-12-01'] |
7,161 | ['eng'] | ['Stern, A'] | ['Hamiltonian Approach to Poisson Lie T-Duality'] | ['Particle Physics - Theory'] | ['Hamiltonian formalism', 'operator, algebra', 'duality', 'algebra, Lie', 'sigma model, nonlinear', 'symmetry, O(3)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811256'] | ['The Hamiltonian formalism offers a natural framework for discussing the notion of Poisson Lie T-duality. This is because the duality is inherent in the Poisson structures alone and exists regardless of the choice of Hamiltonian. Thus one can pose alternative dynamical systems possessing nonabelian T-duality. As an ex... | ['1998-12-01'] |
7,162 | ['eng'] | ['Diakonov, D I', 'Zarembo, K'] | ['Screening of Fractional Charges in (2+1)-dimensional QED'] | ['Particle Physics - Theory'] | ['charge, fractional', 'charge, screening', 'quantum electrodynamics, scalar', 'dimension, 3', 'potential, static', 'Klein-Gordon equation', 'path integral', 'quantum mechanics, effect'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811255'] | ['We show that the logarithmically rising static potential between opposite-charged sources in two dimensions is screened by dynamical fields even if the probe charges are fractional, in units of the charge of the dynamical fields. The effect is due to quantum mechanics: the wave functions of the screening charges are ... | ['1998-12-01'] |
7,163 | ['eng'] | ['Antonuccio, F', 'Lunin, O', 'Pinsky, S S', 'Tsujimaru, S'] | ['The Light-Cone Vacuum in 1+1 Dimensional Super-Yang-Mills Theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'supersymmetry', 'dimension, 2', 'quantization, light cone', 'zero mode', 'vacuum state', 'gauge fixing', 'regularization, point-splitting', 'current, operator'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811254'] | ["The Discrete Light-Cone Quantization (DLCQ) of a supersymmetric SU(N) gauge theory in 1+1 dimensions is discussed, with particular emphasis given to the inclusion of all dynamical zero modes. Interestingly, the notorious `zero-mode problem' is now tractable because of special supersymmetric cancellations. In particul... | ['1998-12-01'] |
7,164 | ['eng'] | ['Moura-Melo, W A', 'Helayël-Neto, José A'] | ['Point-Splitting as a Regualrisation Method for $\\lambda\\phi^{4}$-type Vertices'] | ['Particle Physics - Theory'] | ['regularization, point-splitting', 'Higgs model, abelian', 'phi**n model, 4', 'transformation, gauge', 'fermion', 'field theory, tensor'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811253'] | ['We obtained regularised Abelian Lagrangeans containing Phi^4-type vertices by means of a suitable point-splitting procedure. The calculation is developed in details for a general Lagrangean, whose fields (gauge and matter ones) satisfy certain conditions. We illustrate our results by considering some special cases, s... | ['1998-12-01'] |
7,165 | ['eng'] | ['Bertolini, M', 'Trigiante, M', 'Fré, P'] | ['N=8 BPS black holes preserving 1/8 supersymmetry'] | ['Particle Physics - Theory'] | ['black hole, BPS', 'supersymmetry', 'supergravity', 'algebra, Lie', 'space, Kaehler', 'coset space, SU(3,3)/SU(3) x U(3)', 'differential equations, solution', 'entropy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811251'] | ['In the context of N=8 supergravity we consider BPS black--holes that preserve 1/8 supersymmetry. It was shown in a previous paper that, modulo $U$--duality transformations of $E_{7(7)}$ the most general solution of this type can be reduced to a black--hole of the STU model. In this paper we analize this solution in d... | ['1998-12-01'] |
7,166 | ['eng'] | ['Sriramkumar, L'] | ['On the response of Unruh-DeWitt detectors in classical electromagnetic backgrounds'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'counters and detectors', 'electromagnetic field, background field', 'classical', 'electric field, time dependence', 'transformation, gauge', 'Lagrangian formalism', 'interaction, nonlinear', 'particle, production'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811250'] | ['I study the response of inertial Unruh-DeWitt detectors in different types of classical electromagnetic backgrounds. I show that the detector response turns out to be non-zero only when the electromagnetic background produces particles. I illustrate (with the help of an example) as to how detectors in different gauge... | ['1998-12-01'] |
7,167 | ['eng'] | ['Pachos, J'] | ['Interactions in Abelian and Yang-Mills Theories'] | ['Particle Physics - Theory'] | ['talk, Ljubljana', 'gauge field theory, U(1)', 'gauge field theory, Yang-Mills', 'Hamiltonian formalism', 'Gauss law', 'asymptotic behavior, long-range', 'interaction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811249'] | ['There is a natural way to study the long distance interactions of gauge theories in the electric (momentum) representation. Here, the main ideas are presented for the Abelian and Yang-Mills gauge theories emphasizing on the structure and the advantages of this approach.'] | ['1998-12-01'] |
7,168 | ['eng'] | ['Ford, C', 'Tok, T', 'Wipf, A'] | ['$SU(N)$-Gauge Theories in Polyakov Gauge on the Torus'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'Polyakov loop', 'space-time, torus', 'defect, magnetic'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811248'] | ['We investigate the Abelian projection with respect to the Polyakov loop operator for SU(N) gauge theories on the four torus. The gauge fixed $A_0$ is time-independent and diagonal. We construct fundamental domains for $A_0$. In sectors with non-vanishing instanton number such gauge fixings are always singular. The si... | ['1998-12-01'] |
7,169 | ['eng'] | ['Cruz, J', 'Fabbri, A', 'Navarro-Salas, J'] | ['Can Conformal Transformations change the fate of 2D black holes?'] | ['Particle Physics - Theory'] | ['black hole, mass', 'dimension, 2', 'transformation, conformal', 'field theory, Liouville', 'gravitation, dilaton', 'temperature, Hawking'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811246'] | ['By using a classical Liouville-type model of two dimensional dilaton gravity we show that the one-loop theory implies that the fate of a black hole depends on the conformal frame. There is one frame for which the evaporation process never stops and another one leading to a complete disappearance of the black hole. Th... | ['1998-12-01'] |
7,170 | ['eng'] | ['Elitzur, Shmuel', 'Feinerman, O', 'Giveon, Amit', 'Tsabar, D'] | ['String Theory on $AdS_{3} x S^{3} x S^{3} x S^{1}$'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'dimension, 10', 'field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'moduli space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811245'] | ['Spacetime properties of superstrings on AdS_3 x S^3 x S^3 x S^1 are studied. The boundary theory is a two dimensional superconformal field theory with a large N=(4,4) supersymmetry.'] | ['1998-12-01'] |
7,171 | ['eng'] | ['Bellucci, S', 'Ivanov, E', 'Krivonos, S'] | ['Partial breaking of $N$=1 $D$=10 supersymmetry'] | ['Particle Physics - Theory'] | ['supersymmetry, symmetry breaking', 'dimension, 10', 'symmetry, spontaneously broken', 'dimensional reduction', 'membrane model', 'coset space', 'Goldstone particle'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811244'] | ['We describe the spontaneous partial breaking of $N=1 D=10$ supersymmetry to $N=(1,0) d=6$ and its dimensionally-reduced versions in the framework of the nonlinear realizations method. The basic Goldstone superfield is $N=(1,0) d=6$ hypermultiplet superfield satisfying a nonlinear generalization of the standard hyperm... | ['1998-12-01'] |
7,172 | ['eng'] | ['Dawid, R'] | ['A speculative remark on holography'] | ['Particle Physics - Theory'] | ['holography', 'gravitation', 'quantum mechanics', 'astrophysics, model', 'thermodynamics', 'entropy', 'space-time, anti-de Sitter'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811243'] | ['Holography suggests a considerable reduction of degrees of freedom in theories with gravity. However it seems to be difficult to understand how holography could be realized in a closed re--contracting universe. In this letter we claim that a scenario which achieves that goal will eliminate all spatial degrees of free... | ['1998-11-30'] |
7,173 | ['eng'] | ['Beneventano, C G', 'De Francia, M', 'Santangelo, E M'] | ['Dirac fields in a Bohm-Aharonov background and spectral boundary conditions'] | ['Particle Physics - Theory'] | ['talk, Leipzig 1998/09/14', 'Dirac equation', 'Aharonov-Bohm effect', 'boundary condition', 'index theorem', 'fermion number', 'energy, Casimir', 'flux tube'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811242'] | ['We study the problem of a Dirac field in the background of an Aharonov-Bohm flux string. We exclude the origin by imposing spectral boundary conditions at a finite radius then shrinked to zero. Thus, we obtain a behaviour of the eigenfunctions which is compatible with the self-adjointness of the radial Hamiltonian an... | ['1998-11-30'] |
7,174 | ['eng'] | ['Gogilidze, S A', 'Ilieva, N P', 'Pervushin, V N'] | ['Dirac Variables and Zero Modes of Gauss Constraint in Finite-Volume Two-Dimensional QED'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'dimension, 2', 'finite size', 'fermion', 'Gauss law', 'constraint, solution', 'field theory, collective', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811241'] | ["The finite-volume QED$_{1+1}$ is formulated in terms of Dirac variables by an explicit solution of the Gauss constraint with possible nontrivial boundary conditions taken into account. The intrinsic nontrivial topology of the gauge group is thus revealed together with its zero-mode residual dynamics. Topologically no... | ['1998-11-30'] |
7,175 | ['eng'] | ['Rajesh, G'] | ['Toric geometry and F-theory/Heterotic Duality in Four Dimensions'] | ['Particle Physics - Theory'] | ['F-theory', 'geometry, torus', 'duality, heterotic', 'fibre bundle', 'space, Calabi-Yau', 'grand unified theory', 'membrane model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811240'] | ['We study, as hypersurfaces in toric varieties, elliptic Calabi-Yau fourfolds for F-theory compactifications dual to E8xE8 heterotic strings compactified to four dimensions on elliptic Calabi-Yau threefolds with some choice of vector bundle. We describe how to read off the vector bundle data for the heterotic compacti... | ['1998-11-30'] |
7,176 | ['eng'] | ['Brungs, D', 'Nahm, W'] | ['The associative algebras of conformal field theory'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'algebra', 'dimension, 2', 'zero mode', 'operator product expansion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811239'] | ["Modulo the ideal generated by the derivative fields, the normal ordered product of holomorphic fields in two-dimensional conformal field theory yields a commutative and associative algebra. The zero mode algebra can be regarded as a deformation of the latter. Alternatively, it can be described as an associative quoti... | ['1998-11-30'] |
7,177 | ['eng'] | ['Weidig, T'] | ['The Baby Skyrme Models and their Multi-Skyrmions'] | ['Particle Physics - Theory'] | ['Skyrme model', 'dimension, 3', 'charge, topological', 'Skyrmion, stability', 'potential', 'energy', 'string model, closed', 'numerical methods', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811238'] | ['We analyse the structure of (2+1)D skyrmions with topological charge greater than one; the baby multi-skyrmions. Unlike in the nuclear Skyrme model, a potential term must be present in the baby Skyrme model to ensure stability. We show that the choice of the potential term has a crucial effect on the existence and st... | ['1998-11-30'] |
7,178 | ['eng'] | ['Recknagel, A', 'Schomerus, V'] | ['Boundary Deformation Theory and Moduli Spaces of D-Branes'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'moduli space', 'field theory, conformal', 'deformation', 'boundary condition', 'orbifold', 'operator product expansion', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811237'] | ['Boundary conformal field theory is the suitable framework for a background independent microscopic treatment of D-branes. In this work, we develop boundary deformation theory in order to study the changes of boundary conditions generated by marginal boundary fields. The deformation parameters may be regarded as conti... | ['1998-11-30'] |
7,179 | ['eng'] | ['Jizba, P', 'Tututi, E S'] | ['Pressure of the Non-equilibrium O(N) $\\Phi^{4}$ Theory in the Large N Limit'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'symmetry, O(N)', 'expansion 1/N', 'tensor, energy-momentum', 'pressure', 'entropy', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811236'] | ["We calculate the off-equilibrium hydrostatic pressure for the O(N) Phi^{4} theory to the leading order in 1/N. The present paper, the first of a series, concentrates on the calculation of pressure in the non-equilibrium but translationally invariant medium. The Jaynes-Gibbs principle of maximal entropy is used to int... | ['1998-11-30'] |
7,180 | ['eng'] | ['Fujikawa, K'] | ['A continuum limit of the chiral Jacobian in lattice gauge theory'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'fermion, chiral', 'lattice field theory, continuum limit', 'anomaly', 'index theorem'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811235'] | ['We study the implications of the index theorem and chiral Jacobian in lattice gauge theory, which have been formulated by Hasenfratz, Laliena and Niedermayer and by Lüscher, on the continuum formulation of the chiral Jacobian and anomaly. We take a continuum limit of the lattice Jacobian factor without referring to p... | ['1998-11-30'] |
7,181 | ['eng'] | ['Aldabe, F', 'Larsen, A L'] | ['The SO(32) Heterotic and Type IIB Membranes'] | ['Particle Physics - Theory'] | ['membrane model, heterotic', 'gauge field theory, SO(32)', 'field theory, action', 'anomaly', 'boundary condition', 'topology', 'dimension, 2', 'dimension, 11', 'string model', 'dimensional reduction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811234'] | ['A two dimensional anomaly cancellation argument is used to construct the SO(32) heterotic and type IIB membranes. By imposing different boundary conditions at the two boundaries of a membrane, we shift all of the two dimensional anomaly to one of the boundaries. The topology of these membranes is that of a 2-dimensio... | ['1998-11-30'] |
7,182 | ['eng'] | ['Buchholz, D A'] | ['Current trends in axiomatic quantum field theory'] | ['Particle Physics - Theory'] | ['talk, Tegernsee 1998/06/21', 'axiomatic field theory', 'operator, algebra', 'linear spaces, Hilbert space', 'short-distance behavior', 'thermodynamics', 'space-time', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811233'] | ['In this article a non--technical survey is given of the present status of Axiomatic Quantum Field Theory and interesting future directions of this approach are outlined. The topics covered are the universal structure of the local algebras of observables, their relation to the underlying fields and the significance of... | ['1998-11-30'] |
7,183 | ['eng'] | ['Hurth, Tobias', 'Skenderis, K'] | ['The Quantum Noether Condition in terms of interacting fields'] | ['Particle Physics - Theory'] | ['current, Noether', 'Fock space', 'S-matrix', 'causality', 'invariance, Poincare', 'field theory, interaction', 'current, conservation law', 'perturbation theory', 'invariance, Becchi-Rouet-Stora'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811231'] | ['We review our recent work, hep-th/9803030, on the constraints imposed by global or local symmetries on perturbative quantum field theories. The analysis is performed in the Bogoliubov-Shirkov-Epstein-Glaser formulation of perturbative quantum field theory. In this formalism the S-matrix is constructed directly in the... | ['1998-11-30'] |
7,184 | ['eng'] | ['Gubser, S S', 'Nekrasov, N A', 'Shatashvili, S L'] | ['Generalized conifolds and four dimensional $N=1$ superconformal theories'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'supersymmetry', 'conifold', 'membrane model, D-brane', 'supergravity', 'gauge field theory', 'holography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811230'] | ['We consider D3-branes placed at singularities of Calabi-Yau threefolds which generalize the conifold singularity and have an ADE classification. The $\\CN=1$ superconformal theories dictating their low-energy dynamics are infrared fixed points arising from deforming the corresponding ADE $\\CN=2$ superconformal field... | ['1998-11-30'] |
7,185 | ['eng'] | ['Deriglazov, A A', 'Gitman, D M'] | ['Classical description of spinning degrees of freedom of relativistic particles by means of commuting spinors'] | ['Particle Physics - Theory'] | ['particle, relativistic', 'spinor', 'spin, high', 'model, gauge', 'model, classical', 'quantization', 'interaction, minimal', 'electromagnetic field, external field', 'group theory, Poincare', 'group theory, representation', 'Dirac equation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811229'] | ['We consider a possibility to describe spin one-half and higher spins of massive relativistic particles by means of commuting spinors. We present two classical gauge models with the variables $x^\\mu,\\xi_\\alpha,\\chi_\\alpha$, where models reproduce Dirac equation. We analyze the possibility to introduce an interact... | ['1998-11-27'] |
7,186 | ['eng'] | ['Jäkel, C'] | ['Nuclearity and split for thermal quantum field theories'] | ['Particle Physics - Theory'] | ['finite temperature', 'algebra, von Neumann', 'axiomatic field theory', 'functional analysis'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811227'] | ["We review the heuristic arguments suggesting that any thermal quantum field theory which is a good candidate for a quantum statistical mechanics of (interacting) relativistic particles should obey certain restrictions on its number of local degrees of freedom. As in the vacuum representation, these restrictions can b... | ['1998-11-27'] |
7,187 | ['eng'] | ['Bulgadaev, S A'] | ['Niemeier self-dual lattices and topological phase transitions'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 2', 'critical phenomena, topological', 'group theory, lattice', 'duality', 'torus'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811226'] | ['A topological phase transition in two-dimensional nonlinear sigma-models on tori, connected with self-dual (unimodular) 24-dimensional Niemeier lattices, is considered. It is shown that critical properties of these transitions are determined by corresponding Coxeter numbers of lattices. A possible application to stri... | ['1998-11-27'] |
7,188 | ['eng'] | ['Srivastava, P P'] | ['Light-front Quantized Chiral Schwinger Model and its Vacuum Structure'] | ['Particle Physics - Theory'] | ['Schwinger model, chiral', 'dimension, 2', 'quantization, light front', 'vacuum state', 'bosonization', 'phase space, Hilbert space', 'Hamiltonian formalism', 'Theta parameter'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811225'] | ['The bosonized Chiral Schwinger model (CSM) is quantized on the light-front (LF). The physical Hilbert space of CSM is obtained directly once the constraints on the LF phase space are eliminated. The discussion of the degenerate vacua and the absence in the CSM of the $\\theta$-vacua, as found in the Schwinger model (... | ['1998-11-26'] |
7,189 | ['eng'] | ['Fotopoulos, A', 'Taylor, T R'] | ['Comment on Two-Loop Free Energy in $N$=4 Supersymmetric Yang-Mills Theory at Finite Temperature'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'supersymmetry', 'finite temperature', 'weak coupling', 'approximation, strong coupling', 'energy', 'perturbation theory, higher-order', 'higher-order, 2'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811224'] | ["The strong coupling behavior of finite temperature free energy in N=4 supersymmetric SU(N) Yang-Mills theory has been recently discussed by Gubser, Klebanov and Tseytlin in the context of AdS-SYM correspondence. In this note, we focus on the weak coupling behavior. As a result of a two-loop computation we obtain, in ... | ['1998-11-26'] |
7,190 | ['eng'] | ['Soroka, V A'] | ['Degenerate Odd Poisson Bracket on Grassmann variables'] | ['Particle Physics - Theory'] | ['Hamiltonian formalism', 'operator, algebra', 'algebra, Grassmann'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811223'] | ['A linear degenerate odd Poisson bracket (antibracket) realized solely on Grassmann variables is presented. It is revealed that this bracket has at once three nilpotent $\\Delta$-like differential operators of the first, the second and the third orders with respect to the Grassmann derivatives. It is shown that this $... | ['1998-11-26'] |
7,191 | ['eng'] | ['Torre, C G', 'Varadarajan, M'] | ['Functional Evolution of Free Quantum Fields'] | ['Particle Physics - Theory'] | ['space-time', 'field theory, scalar', 'quantization', 'phase space, Fock space', 'transformation, diffeomorphism', 'Bogolyubov transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811222'] | ['We consider the problem of evolving a quantum field between any two (in general, curved) Cauchy surfaces. Classically, this dynamical evolution is represented by a canonical transformation on the phase space for the field theory. We show that this canonical transformation cannot, in general, be unitarily implemented ... | ['1998-11-26'] |
7,192 | ['eng'] | ['Cea, P', 'Tedesco, L'] | ['Dynamical Generation of the Primordial Magnetic Field by Ferromagnetic Domain Walls'] | ['Particle Physics - Theory'] | ['magnetic field, production', 'domain wall, ferromagnet', 'energy, density', 'electroweak interaction', 'critical phenomena', 'condensation, magnetic', 'quantum electrodynamics', 'dimension, 3', 'effective potential', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811221'] | ['The spontaneous generation of uniform magnetic condensate in $QED_3$ gives rise to ferromagnetic domain walls at the electroweak phase transition. These ferromagnetic domain walls are caracterized by vanishing effective surface energy density avoiding, thus, the domain wall problem. Moreover we find that the domain w... | ['1998-11-26'] |
7,193 | ['eng'] | ['Hotta, T', 'Nishimura, J', 'Tsuchiya, A'] | ['Dynamical Aspects of Large $N$ Reduced Models'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'any-dimensional', 'expansion 1/N', 'matrix model', 'effective action', 'correlation function', 'perturbation theory, higher-order', 'invariance, Lorentz', 'symmetry, spontaneously broken', 'numerical calculations, Monte Carlo'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811220'] | ['We study the large N reduced model of D-dimensional Yang-Mills theory with special attention to dynamical aspects related to the eigenvalues of the N by N matrices, which correspond to the space-time coordinates in the IIB matrix model. We first put an upper bound on the extent of space time by perturbative arguments... | ['1998-11-26'] |
7,194 | ['eng'] | ['Brevik, I'] | ['Casimir Theory of the Relativistic Piecewise Uniform String'] | ['Particle Physics - Theory'] | ['talk, Leipzig 1998/09/14', 'string model', 'dispersion relations', 'energy, Casimir', 'regularization, zeta function', 'thermodynamics'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811219'] | ['The Casimir energy for the transverse oscillations of a piecewise uniform closed string is calculated. The string is relativistic in the sense that the velocity of transverse waves is always equal to c. The great adaptibility of this string model with respect to various regularization methods is pointed out. We surve... | ['1998-11-26'] |
7,195 | ['eng'] | ['Berglund, P', 'Mayr, Peter'] | ['Heterotic String/F-theory Duality from Mirror Symmetry'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'F-theory', 'symmetry, mirror', 'duality', 'fibre bundle, deformation', 'field theory, Calabi-Yau', 'moduli space', 'spontaneous compactification', 'geometry, algebra', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811217', 'http://pascal.intlpress.com/journals/ATMP/archive/'] | ['We use local mirror symmetry in type IIA string compactifications on Calabi-Yau n+1 folds $X_{n+1}$ to construct vector bundles on (possibly singular) elliptically fibered Calabi-Yau n-folds Z_n. The interpretation of these data as valid classical solutions of the heterotic string compactified on Z_n proves F-theory/... | ['1998-11-26'] |
7,196 | ['eng'] | ['Bonnet, G', 'David, F'] | ['Renormalization Group for Matrix Models with Branching Interactions'] | ['Particle Physics - Theory'] | ['gravitation', 'dimension, 2', 'model, polymer', 'matrix model', 'renormalization group, transformation', 'expansion 1/N', 'critical phenomena', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811216'] | ['We develop a method to obtain the large N renormalization group flows for matrix models of 2 dimensional gravity plus branched polymers. This method gives precise results for the critical points and exponents for one matrix models. We show that it can be generalized to two matrices models and we recover the Ising cri... | ['1998-11-26'] |
7,197 | ['eng'] | ['Delfino, G'] | ['Off-critical correlations in the Ashkin-Teller model'] | ['Particle Physics - Theory'] | ['correlation function', 'Ashkin-Teller model', 'scaling', 'dimension, 2', 'scattering amplitude', 'operator, two-particle', 'form factor', 'sine-Gordon model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811215'] | ['We use the exact scattering description of the scaling Ashkin-Teller model in two dimensions to compute the two-particle form factors of the relevant operators. These provide an approximation for the correlation functions whose accuracy is tested against exact sum rules.'] | ['1998-11-26'] |
7,198 | ['eng'] | ['Marino, M', 'Moore, G'] | ['3-manifold topology and the Donaldson-Witten partition function'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'dimension, 3', 'charge, topological', 'partition function', 'Donaldson theory', 'spontaneous compactification', 'Kaluza-Klein model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811214'] | ['We consider Donaldson-Witten theory on four-manifolds of the form $X=Y \\times interesting relations between the four-dimensional Donaldson invariants of $X$ and certain topological invariants of $Y$. In particular, we reinterpret a result of Meng-Taubes relating the Seiberg-Witten invariants to Reidemeister-Milnor t... | ['1998-11-26'] |
7,199 | ['eng'] | ['Brace, D', 'Morariu, B', 'Zumino, B'] | ['T-Duality and Ramond-Ramond Backgrounds in the Matrix Model'] | ['Particle Physics - Theory'] | ['matrix model', 'spontaneous compactification, torus', 'supergravity', 'dimension, 7', 'Chern-Simons term', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9811213'] | ['We investigate T-duality of toroidally compactified Matrix model with arbitrary Ramond-Ramond backgrounds in the framework of noncommutative super Yang-Mills gauge theory.'] | ['1998-11-25'] |
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