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 |
|---|---|---|---|---|---|---|---|---|
4,200 | ['eng'] | ['Hu, L Z'] | ['U(1) gauge theory over discrete space-time and phase transitions'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'space-time, lattice', 'space-time, finite', 'differential geometry, noncommutative', 'field theory, action', 'Landau-Ginzburg model', 'Potts model', 'effective Hamiltonian'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001148'] | ["We first apply Connes' noncommutative geometry to a finite point space. The explicit form of the action functional of U(1) gauge field on this n-point space is obtained. We then consider the case when the n-point space is replaced by {space-time}\\times{n-point space}. This action is shown to relate the Hamiltonian o... | ['2000-01-25'] |
4,201 | ['eng'] | ['Pettorino, R', 'Vilkovisky, G A'] | ['On electrodynamics of rapidly moving sources'] | ['Particle Physics - Theory'] | ['charged particle, velocity', 'electromagnetic field', 'pair production', 'vacuum state, stability', 'back reaction', 'shell model', 'vacuum polarization', 'spectral representation', 'singularity, renormalization', 'forces', 'charge, emission'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001146'] | ['Rapidly moving sources create pairs in the vacuum and lose energy. In consequence of this, the velocity of a charged body cannot approach the speed of light closer than a certain limit which depends only on the coupling constant. The vacuum back-reaction secures the observance of the conservation laws. A source can l... | ['2000-01-25'] |
4,202 | ['eng'] | ['Chu, C S'] | ['Noncommutative Open String'] | ['Particle Physics - Theory'] | ['talk, Anttila 1999/01/27', 'talk, Dubna 1999/07/26', 'string model, open', 'quantization, 1', 'operator, algebra', 'charge', 'background field', 'membrane model, D-brane', 'string, noncommutative'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001144'] | ["We review the quantization of open string in NS-NS background and demonstrate that its endpoint becomes noncommutative. The same approach allows us to determine the noncommutativity that arises for a charged open string in background gauge fields. While NS-NS background is relevant for ``worldvolume'' noncommutativit... | ['2000-01-25'] |
4,203 | ['eng'] | ['Federbush, P'] | ['A Note on Singular Instantons'] | ['Particle Physics - Theory'] | ['gravitation, action', 'derivative, high', 'field theory, Euclidean', 'instanton, singularity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001139'] | ['We point out the existence of some singular, radial, spin-0 instantons for curvature-quadratic gravity theories. They are complex.'] | ['2000-01-24'] |
4,204 | ['eng'] | ['Eden, B U', 'Howe, Paul S', 'Pickering, A', 'Sokatchev, Emery S', 'West, Peter C'] | ['Four-point functions in N=2 superconformal field theories'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'supersymmetry', 'n-point function, 4', 'Ward identity', 'operator, composite', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001138'] | ['Four-point correlation functions of hypermultiplet bilinear composites are analysed in N=2 superconformal field theory using the superconformal Ward identities and the analyticity properties of the composite operator superfields. It is shown that the complete amplitude is determined by a single arbitrary function of ... | ['2000-01-24'] |
4,205 | ['eng'] | ['Nagao, T', 'Nishigaki, S M'] | ['Massive chiral random matrix ensembles at $\\beta$=1 and 4'] | ['Particle Physics - Theory'] | ['quantum chromodynamics', 'boundary condition', 'matrix model, random', 'matrix model, chiral', 'partition function', 'correlation function', 'energy levels, density'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001137'] | ['In a deep-infrared (ergodic) regime, QCD coupled to massive pseudoreal and real quarks are described by chiral orthogonal and symplectic ensembles of random matrices. Using this correspondence, general expressions for the QCD partition functions are derived in terms of microscopically rescaled mass variables. In limi... | ['2000-01-24'] |
4,206 | ['eng'] | ['Carter, B'] | ['Cancellation of linearised axion-dilaton self interaction divergence in strings'] | ['Particle Physics - Theory'] | ['talk, Peyresq 1998/06/01', 'string model', 'dilaton', 'axion', 'domain wall', 'membrane model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001136'] | ["The force densities exerted on a localised material system by linearised interaction with fields of axionic and dilatonic type are shown to be describable very generally by relatively simple expressions that are well behaved for fields of purely external origin, but that will be subject to ultraviolet divergences req... | ['2000-01-24'] |
4,207 | ['eng'] | ['Hata, H', 'Moriyama, S'] | ['String Junction from Non-Commutative Super Yang-Mills Theory'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'differential geometry, noncommutative', 'soliton, BPS', 'charge, topological', 'charge, fractional', 'Gauss law', 'membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 3'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001135'] | ['We construct a 1/4 BPS soliton solution in N=4 non-commutative super Yang-Mills theory to the first order in the non-commutativity parameter scalar fields. The Callan-Maldacena interpretation of the eigenvalues precisely reproduces the expected string junction picture: the string junction is tilted against the D3-bra... | ['2000-01-24'] |
4,208 | ['eng'] | ['Ovrut, B A', 'Pantev, T', 'Park, J'] | ['Small Instanton Transitions in Heterotic M-Theory'] | ['Particle Physics - Theory'] | ['M-theory, heterotic', 'membrane model, p-brane', 'p-brane, 5', 'boundary condition', 'fibre bundle, SU(N)', 'instanton', 'critical phenomena', 'charge, topological'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001133'] | ["We discuss non-perturbative phase transitions, within the context of heterotic M-theory, which occur when all, or part, of the wrapped five-branes in the five-dimensional bulk space come into direct contact with a boundary brane. These transitions involve the transformation of the five-brane into a ``small instanton'... | ['2000-01-24'] |
4,209 | ['eng'] | ['Brunner, Ilka', 'Schomerus, V'] | ['D-branes at Singular Curves of Calabi-Yau Compactifications'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'spontaneous compactification, Calabi-Yau', 'orbifold', 'geometry, algebra', 'homology', 'boundary condition'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001132'] | ['We study the Gepner model description of D-branes in Calabi-Yau manifolds with singular curves. From a geometrical point of view, the resolution of singularities leads to additional homology cycles around which branes can wrap. Using techniques from conformal field theory we address the construction of boundary state... | ['2000-01-21'] |
4,210 | ['eng'] | ['Bergman, O', 'Gaberdiel, M R'] | ['On the Consistency of Orbifolds'] | ['Particle Physics - Theory'] | ['orbifold', 'symmetry, Z(2)', 'membrane model, D-brane', 'spectra, D-brane', 'supersymmetry, symmetry breaking', 'partition function', 'invariance, modular', 'operator product expansion', 'nonperturbative'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001130'] | ['Modular invariance and the closure of the operator product expansion are necessary conditions for the consistency of a closed string theory. For certain orbifold theories, however, these conditions are not sufficient to determine the spectrum of the resulting theory uniquely. We show that there exists a (non-perturba... | ['2000-01-21'] |
4,211 | ['eng'] | ['Dütsch, M', 'Fredenhagen, Klaus'] | ['Algebraic Quantum Field Theory, Perturbation Theory and the Loop Expansion'] | ['Particle Physics - Theory'] | ['axiomatic field theory', 'perturbation theory', 'algebra, local', 'renormalization', 'gauge field theory', 'field theory, classical', 'S-matrix, local', 'causality', 'quantization', 'field theory, interaction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001129'] | ["The perturbative treatment of quantum field theory is formulated within the framework of algebraic quantum field theory. We show that the algebra of interacting fields is additive, i.e. fully determined by its subalgebras associated to arbitrary small subregions of Minkowski space. We also give an algebraic formulati... | ['2000-01-21'] |
4,212 | ['eng'] | ['Fring, A', 'Korff, C'] | ['Colour valued Scattering Matrices'] | ['Particle Physics - Theory'] | ['dimension, 2', 'S-matrix', 'bootstrap', 'algebra, Lie', 'field theory, affine', 'field theory, Toda', 'thermodynamics, Bethe ansatz'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001128'] | ['We describe a general construction principle which allows to add colour values to a coupling constant dependent scattering matrix. As a concrete realization of this mechanism we provide a new type of S-matrix which generalizes the one of affine Toda field theory, being related to a pair of Lie algebras. A characteris... | ['2000-01-21'] |
4,213 | ['eng'] | ['Kummer, Wolfgang', 'Vasilievich, D V'] | ['Open strings, Born-Infeld action and the heat kernel'] | ['Particle Physics - Theory'] | ['string model, open', 'boundary condition', 'Born-Infeld model', 'sigma model, nonlinear', 'anomaly, conformal', 'renormalization group, beta function', 'regularization, heat kernel'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001125'] | ['In the derivation of the Born-Infeld action for the case with a nontrivial boundary of the string world sheet the appearance of a new term changes the conformal anomaly. This may have many consequences, especially also in the study of generalized interacting brane systems.'] | ['2000-01-21'] |
4,214 | ['eng'] | ['Kluson, J'] | ['D-branes in Type IIA and Type IIB theories from tachyon condensation'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'tachyon, condensation', 'field theory, action', 'Wess-Zumino term'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001123'] | ['In this paper we will construct all D-branes in Type IIA and Type IIB theories via tachyon condensation. We also propose form of Wess-Zumino term for non-BPS D-brane and we will show that tachyon condensation in this term leads to standard Wess-Zumino term for BPS D-brane.'] | ['2000-01-21'] |
4,215 | ['eng'] | ['Nojiri, S', 'Odintsov, S D', 'Ogushi, S'] | ['Finite Action in d5 Gauged Supergravity and Dilatonic Conformal Anomaly for Dual Quantum Field Theory'] | ['Particle Physics - Theory'] | ['supergravity', 'dimension, 5', 'dimension, 3', 'gauge field theory', 'dilaton', 'anomaly, conformal', 'duality', 'space-time, anti-de Sitter', 'supersymmetry', 'potential', 'tensor, energy-momentum', 'black hole, mass', 'regularization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001122'] | ['Gauged supergravity (SG) with single scalar (dilaton) and arbitrary scalar potential is considered. Such dilatonic gravity describes special RG flows in extended SG where scalars lie in one-dimensional submanifold of total space. The surface counterterm and finite action for such gauged SG in three-, four- and five-d... | ['2000-01-20'] |
4,216 | ['eng'] | ['Brignole, A'] | ['One-loop Kähler potential in non-renormalizable theories'] | ['Particle Physics - Theory'] | ['supersymmetry, superfield', 'field theory, action', 'potential, superpotential', 'potential, Kaehler', 'perturbation theory, higher-order', 'propagator'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001121'] | ['We consider a general d=4 N=1 globally supersymmetric lagrangian involving chiral and vector superfields, with arbitrary superpotential, Kahler potential and gauge kinetic function. We compute perturbative quantum corrections by employing a component field approach that respects supersymmetry and background gauge inv... | ['2000-01-20'] |
4,217 | ['eng'] | ['Bose, S', 'Dadhich, N K'] | ['The electrogravity transformation and global monopoles in scalar-tensor gravity'] | ['Particle Physics - Theory'] | ['electromagnetic field', 'gravitation', 'duality', 'Einstein equation', 'tensor, energy-momentum', 'black hole', 'dilaton', 'monopole'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001119'] | ["The electrogravity transformation is defined by an interchange of the ``active'' and ``passive'' electric parts of the Riemann tensor. Such a transformation has been used to find new solutions that are ``dual'' to the Kerr family of black hole spacetimes in general relativity. In such a case, the dual solution is a s... | ['2000-01-20'] |
4,218 | ['eng'] | ['Afanasiev, S V'] | ['Quantization of the space-time based on a formless finite fundamental element'] | ['Particle Physics - Theory'] | ['space-time, quantization', 'wave function', 'action', 'fermion', 'boson', 'supersymmetry', 'geometry', 'continuum limit', 'path integral'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001117'] | ['The concept of the space (space-time) of the formless finite fundamental elements (FFFE) is suggested. This space can be defined as a set of coverings of the continual space by non-overlapping simply connected regions of any form and arbitrary sizes with some probability measure. The average sizes of each fundamental... | ['2000-01-20'] |
4,219 | ['eng'] | ['Zhukovskii, V C', 'Peskov, N A'] | ['Fermion in the d = 2 + 1 Nonabelian Gauge Field Theory in a Constant Background'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'dimension, 3', 'Chern-Simons term', 'fermion', 'background field, constant', 'Hamiltonian formalism', 'propagator', 'perturbation theory, higher-order'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001116'] | ['The massive SU(2) gauge field theory coupled with fermions is considered in 2+1 dimensions. Quark energy spectrum and its one-loop radiative shift in a constant nonabelian background, being an exact solution of the gauge field equations with the Chern-Simons term, are calculated. Under the condition $m ='] | ['2000-01-20'] |
4,220 | ['eng'] | ['Mannheim, P D', 'Davidson, A'] | ['Fourth Order Theories Without Ghosts'] | ['Particle Physics - Theory'] | ['model, oscillator', 'action, higher-order', 'ghost', 'quantization, 1', 'Hamiltonian formalism', 'gravitation, conformal'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001115'] | ['Using the Dirac constraint method we show that the pure fourth-order Pais-Uhlenbeck oscillator model is free of observable negative norm states. Even though such ghosts do appear when the fourth order theory is coupled to a second order one, the limit in which the second order action is switched off is found to be a ... | ['2000-01-20'] |
4,221 | ['eng'] | ['Mohammedi, N'] | ['On the classical connection between the WZWN model and topological gauge theories with boundaries'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'Chern-Simons term', 'dimension, 3', 'gauge field theory, topological', 'Wess-Zumino-Witten model', 'dimension, 2', 'gauge field theory, BF', 'duality, transformation', 'boundary condition'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001114'] | ['It is shown, at the level of the classical action, that the Wess-Zumino-Witten-Novikov model is equivalent to a combined BF theory and a Chern-Simons action in the presence of a unique boundary term. This connection relies on the techniques of non-Abelian T-duality in non-linear sigma models. We derive some consisten... | ['2000-01-20'] |
4,222 | ['eng'] | ['Terashima, S'] | ['On the Equivalence between Noncommutative and Ordinary Gauge Theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'gauge field theory, noncommutative', 'effective Lagrangian', 'derivative, high', 'Born-Infeld model', 'membrane model, D-brane'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001111'] | ['Recently Seiberg and Witten have proposed that noncommutative gauge theories realized as effective theories on D-brane are equivalent to some ordinary gauge theories. This proposal has been proved, however, only for the Dirac-Born-Infeld action in the approximation of neglecting all derivative terms. In this paper we... | ['2000-01-19'] |
4,223 | ['eng'] | ['Toublan, D', 'Verbaarschot, J J M'] | ['Effective Low Energy Theories and QCD Dirac Spectra'] | ['Particle Physics - Theory'] | ['talk, Seattle 1999/09/10', 'quantum chromodynamics', 'quark, flavor', 'effective action', 'energy, low', 'finite temperature', 'partition function', 'matrix model, random', 'mass spectrum', 'operator, Dirac', 'numerical calculations', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001110'] | ['We analyze the smallest Dirac eigenvalues by formulating an effective theory for the QCD Dirac spectrum. We find that in a domain where the kinetic term of the effective theory can be ignored, the Dirac eigenvalues are distributed according to a Random Matrix Theory with the global symmetries of the QCD partition fun... | ['2000-01-19'] |
4,224 | ['eng'] | ['Ketov, S V'] | ['Superconformal hypermultiplets in superspace'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'supersymmetry', 'superspace, harmonic', 'transformation, conformal', 'constraint, solution', 'geometry, Kaehler', 'gravitation, instanton', 'multiplet'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001109'] | ['We use the manifestly N=2 supersymmetric harmonic (or twistor) superspace approach to solve the constraints implied by the N=2 superconformal symmetry on the N=2 non-linear sigma-model target space, known as the special hyper-K"ahler geometry. Our solution is formulated in terms of a homogeneous (of degree two) funct... | ['2000-01-19'] |
4,225 | ['eng'] | ['Bagrov, V G', 'Gitman, D M', 'Levin, A', 'Tlyachev, V B'] | ['Aharonov-Bohm Effect in Synchrotron Radiation'] | ['Particle Physics - Theory'] | ['Aharonov-Bohm effect', 'synchrotron radiation', 'magnetic field, solenoid', 'quantum mechanics, relativistic', 'Klein-Gordon equation, solution', 'Dirac equation, solution', 'approximation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001108'] | ['Synchrotron radiation of a charged particle in a constant uniform magnetic field and in the presence of the Aharonov-Bohm solenoid field is studied in the frame of the relativistic quantum theory. First, to this end exact solutions of the Klein-Gordon and Dirac equations are found. Using such solutions, all character... | ['2000-01-19'] |
4,226 | ['eng'] | ['Imamura, Y'] | ['T-duality of non-commutative gauge theories'] | ['Particle Physics - Theory'] | ['string model, open', 'membrane model, D-brane', 'duality, T-duality', 'gauge field theory, noncommutative'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001105'] | ['Via T-duality a theory of open strings on a D1-brane wrapped along a cycle of slanted torus is described by a U(1) gauge theory on a D2-brane in the B-field background. It is also known that there is another dual description of the D1-brane configuration by a non-commutative gauge theory on a D2-brane. Therefore, the... | ['2000-01-19'] |
4,227 | ['eng'] | ['Campbell, Bruce A', 'Kaminski, K'] | ['Anomalous U(1) Vortices and The Dilaton'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'effective action', 'dilaton', 'vortex', 'anomaly, U(1)', 'perturbation theory, higher-order'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001104'] | ['The role of the (dynamical) dilaton in the vortices associated with the spontaneous breaking of an anomalous U(1) from heterotic string theory is examined. We demonstrate how the anomaly (and the coupling to the dilaton/axion) can appear in the Lagrangian and associated field equations as a controlled perturbation ab... | ['2000-01-18'] |
4,228 | ['eng'] | ['Dorey, N', 'Kumar, S P'] | ['Softly-Broken N = 4 Supersymmetry in the Large-N Limit'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'supersymmetry, symmetry breaking', 'field theory, deformation', 'mass', 'fermion, chiral', 'fermion, condensation', 'soliton, BPS', 'domain wall', 'duality', 'expansion 1/N', 'space-time, anti-de Sitter', 'field theory, conformal'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001103'] | ["We calculate the exact values of the holomorphic observables of {\\cal N}=4 supersymmetric SU(N) Yang-Mills theory deformed by mass terms which preserve the theory as well as the central charge which determines the tension of BPS saturated domain walls interpolating between these vacua. Several unexpected features em... | ['2000-01-18'] |
4,229 | ['eng'] | ['Calucci, G'] | ['Possible instability of the vacuum in a strong magnetic field'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'fermion', 'vacuum state, stability', 'magnetic field, strong field'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001102'] | ['The possibility that a static magnetic field may decay through production of electron positron pairs is studied. The conclusion is that this decay cannot happen through production of single pairs, as in the electric case, but only through the production of a many-body state, since the mutual magnetic interactions of ... | ['2000-01-18'] |
4,230 | ['eng'] | ['Donagi, R Y', 'Ovrut, B A', 'Pantev, T', 'Waldram, D'] | ['Standard Model Vacua in Heterotic M-Theory'] | ['Particle Physics - Theory'] | ['talk, Potsdam 1999/07/19', 'M-theory, heterotic', 'supersymmetry', 'gauge field theory, SU(3) x SU(2) x U(1)', 'vacuum state', 'field theory, Calabi-Yau', 'geometry, algebra', 'family, 3'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001101'] | ["We present a class of N=1 supersymmetric ``standard'' models of particle physics, derived directly from heterotic M-theory, that contain three families of chiral quarks and leptons coupled to the gauge group SU(3)_C X SU(2)_L X U(1)_Y. These models are a fundamental form of ``brane world'' theories, with an observabl... | ['2000-01-18'] |
4,231 | ['eng'] | ['Brihaye, Y', 'Desoil, M'] | ['Gravitating (bi-)sphalerons'] | ['Particle Physics - Theory'] | ['electroweak interaction', 'gravitation', 'coupling, minimal', 'sphaleron', 'Higgs particle, mass', 'gauge boson, mass', 'symmetry, rotational', 'gauge field theory, SU(2)', 'bifurcation', 'critical phenomena', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001100'] | ['The standard model of electroweak interactions is minimally coupled to gravity and the response of the spherically symmetric solutions -the sphaleron and the bisphaleron- to gravity is emphasized. For a given value of the Higgs mass $M_H$, several branches of solutions exist which terminate into cusp-catastrophy at s... | ['2000-01-18'] |
4,232 | ['eng'] | ['Deriglazov, A A'] | ['On consistency of the closed bosonic string with different left-right ordering constants'] | ['Particle Physics - Theory'] | ['string model, boson', 'string, closed', 'symmetry, left-right', 'phase space', 'tachyon', 'algebra, Virasoro', 'algebra, representation', 'constraint'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001099'] | ['Closed bosonic string with different normal ordering constants $a \\ne \\bar a$ for the right and the left moving sectors is considered. One immediate consequence of this choice is absence of tachyon in the physical state spectrum. Selfconsistency of the resulting model in the "old covariant quantization" (OCQ) frame... | ['2000-01-18'] |
4,233 | ['eng'] | ['Savvidy, G K'] | ['Electromagnetic dipole radiation of oscillating D-branes'] | ['Particle Physics - Theory'] | ['talk, Villasimius 1999/09/14', 'membrane model, D-brane', 'membrane model, oscillation', 'radiation, dipole', 'electromagnetic field', 'string model', 'soliton, BPS', 'Born-Infeld model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001098'] | ['I emphasize analogy between Dp-branes in string theories and solitons in gauge theories comparing their common properties and showing differences. We will show that for certain excitations of the string/D3-brane system Neumann boundary conditions emerge from the Born-Infeld dynamics. The excitations which are coming ... | ['2000-01-18'] |
4,234 | ['eng'] | ['Balog, J', 'Niedermaier, M R', 'Niedermayer, Ferenc', 'Patrascioiu, A', 'Seiler, E', 'Weisz, P'] | ['The Intrinsic Coupling in Integrable Quantum Field Theories'] | ['Particle Physics - Theory'] | ['axiomatic field theory', 'n-point function, 4', 'integrability', 'lattice field theory', 'sigma model, nonlinear', 'symmetry, O(3)', 'Ising model', 'numerical calculations, Monte Carlo'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001097'] | ['The intrinsic 4-point coupling, defined in terms of a truncated 4-point function at zero momentum, provides a well-established measure for the interaction strength of a QFT. We show that this coupling can be computed non-perturbatively and to high accuracy from the form factors of an (integrable) QFT. The technique i... | ['2000-01-18'] |
4,235 | ['eng'] | ['Salehi, H', 'Bisabr, Y', 'Ghafarnejad, H'] | ['Scalar Tensor Theories and Hadamard State Condition'] | ['Particle Physics - Theory'] | ['gravitation', 'field theory, scalar', 'invariance, conformal', 'phase space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001096'] | ['The Hadamard state condition is used to analyze the local constraints on the two-point function of a quantum field conformally coupled to a background geometry. Using these constraints we develop a scalar tensor theory which controls the coupling of the stress-tensor induced by the two-point function of the quantum f... | ['2000-01-18'] |
4,236 | ['eng'] | ['Plyushchay, M S'] | ['Bosonized supersymmetric quantum mechanics and supersymmetry of parabosons (parafermions)'] | ['Particle Physics - Theory'] | ['talk, Dubna 1999/07/26', 'quantum mechanics', 'supersymmetry', 'bosonization', 'parastatistics', 'hidden symmetry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001094'] | ['We review the construction of minimally bosonized supersymmetric quantum mechanics and its relation to hidden supersymmetries in pure parabosonic (parafermionic) systems.'] | ['2000-01-18'] |
4,237 | ['eng'] | ['Tanaka, T', 'Montes, X'] | ['Gravity in the brane-world for two-branes model with stabilized modulus'] | ['Particle Physics - Theory'] | ['membrane model, 2', 'membrane model, interaction', 'gravitation', 'mass spectrum', 'zero mode'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001092'] | ['We present a complete scheme to discuss linear perturbations in the two-branes model of the Randall and Sundrum scenario with the stabilization mechanism proposed by Goldberger and Wise. We confirm that under the approximation of zero mode truncation the induced metric on the branes reproduces that of the usual 4-dim... | ['2000-01-18'] |
4,238 | ['eng'] | ['Baseilhac, P', 'Reynaud, D'] | ['Dual generalizations of sine-Gordon field theory and integrability submanifolds in parameter space'] | ['Particle Physics - Theory'] | ['sine-Gordon model', 'dimension, 2', 'duality', 'current, conservation law', 'field theory, deformation', 'perturbation theory', 'operator, algebra', 'integrability'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001091'] | ['The dual relationship between two n-1 parameter families of quantum field theories based on extended complex numbers is investigated in two dimensions. The non-local conserved charges approach is used. The lowest rank affine Toda field theories are generated and identified as integrability submanifolds in parameter s... | ['2000-01-18'] |
4,239 | ['eng'] | ['Zaslavskii, O B'] | ['Quantum extreme black holes at finite temperature and exactly solvable models of 2d dilaton gravity'] | ['Particle Physics - Theory'] | ['gravitation', 'dilaton', 'dimension, 2', 'finite temperature', 'black hole', 'field equations, solution', 'tensor, energy-momentum', 'quantization, effect', 'horizon'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001090'] | ['It is argued that in certain 2d dilaton gravity theories there exist self-consistent solutions of field equations with quantum terms which describe extreme black holes at nonzero temperature. The curvature remains finite on the horizon due to cancelation of thermal divergencies in the stress-energy tensor against div... | ['2000-01-18'] |
4,240 | ['eng'] | ['Sheikh-Jabbari, S'] | ['Noncommutative Super Yang-Mills Theories with 8 Supercharges and Brane Configurations'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'differential geometry, noncommutative', 'membrane model', 'M-theory', 'moduli space', 'geometry, algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001089'] | ['In this paper we consider D=4 NCSYM theories with 8 supercharges. We study these theories through a proper type IIA (and M-theory) brane configuration. We find the one loop beta function of these theories and show that there is an elliptic curve describing the moduli space of the theory, which in principle is the sam... | ['2000-01-18'] |
4,241 | ['eng'] | ['Shiokawa, K'] | ['Mesoscopic Fluctuations in Stochastic Spacetime'] | ['Particle Physics - Theory'] | ['gravitation', 'space-time, stochastic', 'field theory, scalar', 'fermion', 'fluctuation', 'transport theory', 'path integral', 'sigma model, nonlinear', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001088'] | ['Mesoscopic effects associated with wave propagation in spacetime with metric stochasticity are studied. We show that the scalar and spinor waves in a stochastic spacetime behave similarly to the electrons in a disordered system. Viewing this as the quantum transport problem, mesoscopic fluctuations in such a spacetim... | ['2000-01-18'] |
4,242 | ['eng'] | ['Banerjee, R'] | ['The commutativity principle and lagrangian symmetries'] | ['Particle Physics - Theory'] | ['mechanics, classical', 'symmetry, transformation', 'charge, topological', 'gauge field theory', 'Hamiltonian formalism', 'Lagrangian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001087'] | ['Using the commutativity of a general variation with the time differentiation we discuss both global and local (gauge) symmetries of a lagrangian from a unified point of view. The Noether considerations are thereby applicable for both cases. A complete equivalence between the hamiltonian and lagrangian formulations is... | ['2000-01-17'] |
4,243 | ['eng'] | ['Esposito, G'] | ['Boundary Operators in Quantum Field Theory'] | ['Particle Physics - Theory'] | ['boundary condition', 'operator, algebra', 'operator, differential', 'dependence, gauge', 'perturbation theory, higher-order', 'quantum gravity, Euclidean', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001086'] | ['When quantum fields are studied on manifolds with boundary, the corresponding one-loop quantum theory for bosonic gauge fields with linear covariant gauges needs the assignment of suitable boundary operators for elliptic differential operators of Laplace type. It is here shown that, on requiring that the full boundar... | ['2000-01-17'] |
4,244 | ['eng'] | ['Jacobson, T'] | ['Trans-Planckian redshifts and the substance of the space-time river'] | ['Particle Physics - Theory'] | ['talk, Kyoto 1999/06/28', 'space-time', 'black hole', 'dispersion relations', 'lattice field theory', 'condensed matter', 'invariance, Lorentz', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001085'] | ["Trans-Planckian redshifts in cosmology and outside black holes may provide windows on a hypothetical short distance cutoff on the fundamental degrees of freedom. In cosmology, such a cutoff seems to require a growing Hilbert space, but for black holes, Unruh's sonic analogy has given rise to both field theoretic and ... | ['2000-01-14'] |
4,245 | ['eng'] | ['Kiritsis, Elias B', 'Obers, N A', 'Pioline, B'] | ['Heterotic/Type II Triality and Instantons on $K_{3}$'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'instanton', 'orbifold', 'duality', 'triality', 'spontaneous compactification', 'moduli space', 'group theory, representation', 'operator, vertex', 'Riemann surfaces', 'M-theory', 'transformation, gauge', 'membrane model', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001083'] | ["A detailed understanding of instanton effects for half-BPS couplings is pursued in theories with 16 supersymmetries. In particular, we investigate the duality between heterotic string on $T^4$ and type IIA on $K_3$ at the $T^4/Z_2$ orbifold point, as well as their higher and lower dimensional versions. We present a r... | ['2000-01-14'] |
4,246 | ['eng'] | ['Behrndt, K', 'Gukov, S G'] | ['Domain Walls and Superpotentials from M Theory on Calabi-Yau Three-Folds'] | ['Particle Physics - Theory'] | ['M-theory', 'spontaneous compactification', 'supergravity, potential', 'dimension, 5', 'dimension, 11', 'field theory, Calabi-Yau', 'domain wall', 'soliton, BPS', 'membrane model, p-brane', 'p-brane, 5', 'vacuum state'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001082'] | ["Compactification of M theory in the presence of G-fluxes yields N=2 five-dimensional gauged supergravity with a potential that lifts all supersymmetric vacua. We derive the effective superpotential directly from the Kaluza-Klein reduction of the eleven-dimensional action on a Calabi-Yau three-fold and compare it with... | ['2000-01-14'] |
4,247 | ['eng'] | ['Grigoriev, M A', 'Semikhatov, A M', 'Tipunin, I Y'] | ['BRST Formalism and Zero Locus Reduction'] | ['Particle Physics - Theory'] | ['gauge field theory', 'quantization, Batalin-Vilkovisky', 'Hamiltonian formalism', 'Lagrangian formalism', 'transformation, Becchi-Rouet-Stora', 'constraint', 'geometry', 'algebra', 'mathematical methods'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001081'] | ['In the BRST quantization of gauge theories, the zero locus $Z_Q$ of the BRST differential $Q$ carries an (anti)bracket whose parity is opposite to that of the fundamental bracket. We show that the on-shell BFV/BV gauge symmetries are in a 1:1 correspondence with Hamiltonian vector fields on $Z_Q$, and observables of ... | ['2000-01-14'] |
4,248 | ['eng'] | ['Casadio, R', 'Harms, B'] | ['Three dimensional gravity from ISO(2,1) coset models'] | ['Particle Physics - Theory'] | ['Wess-Zumino-Witten model', 'gravitation', 'dimension, 3', 'boson, string', 'coset space, ISO(2,1)/R(N)', 'group theory, Poincare', 'dimension, 6', 'spontaneous compactification', 'space-time, anti-de Sitter', 'dilaton, vacuum state', 'duality, T-duality', 'black hole'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001080'] | ["Starting from a WZWN action in the ISO(2,1) Poincare' group which describes a bosonized spinning string in 2+1 Minkowski space-time, we show that a sequence of non-trivial compactifications leads to the description of a spinless string which moves in a (linear dilaton) vacuum, AdS_3 or BTZ black hole background. Othe... | ['2000-01-14'] |
4,249 | ['eng'] | ['Sagnotti, A'] | ['Open-string models with broken supersymmetry'] | ['Particle Physics - Theory'] | ['talk, Villasimius 1999/09/14', 'talk, Moscow 1999/05/27', 'string model, open', 'supersymmetry, symmetry breaking', 'field theory, deformation', 'scattering amplitude, higher-order', 'membrane model', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001077'] | ["I review the salient features of three classes of open-string models with broken supersymmetry. These suffice to exhibit, in relatively simple settings, the two phenomena of ``brane supersymmetry'' and ``brane supersymmetry breaking''. In the first class of models, to lowest order supersymmetry is broken both in the ... | ['2000-01-13'] |
4,250 | ['eng'] | ['Billó, M', 'Caselle, M', "D'Adda, A", 'Provero, P'] | ['Generalized two-dimensional Yang-Mills theory is a matrix string theory'] | ['Particle Physics - Theory'] | ['talk, Villasimius 1999/09/14', 'gauge field theory, Yang-Mills', 'dimension, 2', 'matrix model', 'string model', 'Riemann surfaces', 'dependence, gauge', 'space-time, boundary condition', 'lattice field theory, effective action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001076'] | ['We consider two-dimensional Yang-Mills theories on arbitrary Riemann surfaces. We introduce a generalized Yang-Mills action, which coincides with the ordinary one on flat surfaces but differs from it in its coupling to two-dimensional gravity. The quantization of this theory in the unitary gauge can be consistently p... | ['2000-01-13'] |
4,251 | ['eng'] | ['Jiang, L'] | ['Dirac Monopole in Non-Commutative Space'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'magnetic monopole', 'differential geometry, noncommutative', 'differential forms', 'Theta parameter'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001073'] | ['We consider static U(1) monopole in non-commutative space. Up to the second order in the non-commutativity scale $\\theta$, we find no non-trivial corrections to the Dirac solution, the monopole mass remains infinite. We argue the same holds for any arbitrary higher order. Some speculation about the nature of non-com... | ['2000-01-13'] |
4,252 | ['eng'] | ['Zunger, Y'] | ['Twistors and Actions on Coset Manifolds'] | ['Particle Physics - Theory'] | ['field theory, action', 'string model', 'coset space', 'twistor', 'field theory, anti-de Sitter', 'geometry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001072'] | ['Particle and string actions on coset spaces typically lack a quadratic kinetic term, making their quantization difficult. We define a notion of twistors on these spaces, which are hypersurfaces in a vector space that transform linearly under the isometry group of the coset. By associating the points of the coset spac... | ['2000-01-13'] |
4,253 | ['eng'] | ['Kallosh, R', 'Linde, Andrei D'] | ['Supersymmetry and the Brane World'] | ['Particle Physics - Theory'] | ['supergravity', 'field equations, solution', 'membrane model', 'potential, superpotential', 'domain wall', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001071', 'http://documents.cern.ch/archive/electronic/other/uploader/SUSY2K/kallosh.ps.gz'] | ['We investigate the possibility of gravity localization on the brane in the context of supersymmetric theories. To realize this scenario one needs to find a theory with the supersymmetric flow stable in IR at two critical points, one with positive and another with negative values of the superpotential. We perform a ge... | ['2000-01-12'] |
4,254 | ['eng'] | ['Gusynin, V P'] | ['Magnetic Catalysis of Chiral Symmetry Breaking in Gauge Theories'] | ['Particle Physics - Theory'] | ['talk, Moscow 1999/09/27', 'quantum electrodynamics', 'fermion, condensation', 'magnetic field, external field', 'energy levels, density', 'symmetry breaking, chiral', 'fermion, mass generation', 'catalysis, magnetic'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001070'] | ['Non-perturbative effect of the formation of a chiral symmetry breaking condensate <\\bar\\psi\\psi> and of a dynamically generated fermion mass in QED in the presence of an external magnetic field is considered. The dynamical mass of a fermion (energy gap in the fermion spectrum) is shown to depend essentially nonana... | ['2000-01-12'] |
4,255 | ['eng'] | ['Polshin, S A'] | ['Quantization of fields over de Sitter space by the method of generalized coherent states; 2, Spinor field'] | ['Particle Physics - Theory'] | ['space-time', 'group theory, de Sitter', 'group theory, representation', 'spinor', 'Dirac equation', 'quantization', 'coherent state'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001069'] | ['Connection of the invariant Dirac equation over the de Sitter space with irreducible representations of the de Sitter group is ascertained. The set of solutions of this equation is obtained in the form of the product of two different systems of generalized coherent states for the de Sitter group. Using these solution... | ['2000-01-12'] |
4,256 | ['eng'] | ['Kuzenko, S M', 'Theisen, Stefan J'] | ['Supersymmetric Duality Rotations'] | ['Particle Physics - Theory'] | ['supersymmetry, superfield', 'field theory, action', 'Born-Infeld model', 'duality, transformation', 'field theory, conformal'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001068'] | ['We derive N = 1, 2 superfield equations as the conditions for a (nonlinear) theory of one abelian N = 1 or N = 2 vector multiplet to be duality invariant. The N = 1 super Born-Infeld action is a particular solution of the corresponding equation. A family of duality invariant nonlinear N = 1 supersymmetric theories is... | ['2000-01-12'] |
4,257 | ['eng'] | ['Plyushchay, M S', 'Rausch de Traubenberg, M'] | ['Cubic root of Klein-Gordon equation'] | ['Particle Physics - Theory'] | ['Klein-Gordon equation', 'Dirac equation', 'any-dimensional', 'algebra, Clifford', 'algebra, representation', 'group theory, Lorentz', 'group theory, representation', 'gauge field theory, U(1)', 'anyon'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001067'] | ['We construct new relativistic linear differential equation in $d$ dimensions generalizing Dirac equation by employing the Clifford algebra of the cubic polynomial associated to Klein-Gordon operator multiplied by the mass parameter. Unlike the Dirac case where the spin content is unique and Lorentz covariance is mani... | ['2000-01-12'] |
4,258 | ['eng'] | ['Mukhi, S', 'Suryanarayana, N V', 'Tong, D'] | ['Brane-Antibrane Constructions'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'membrane model, p-brane', 'membrane model, interaction', 'membrane model, fractional', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001066'] | ['In type II string theories, we examine intersecting brane constructions containing brane-antibrane pairs suspended between 5-branes, and more general non-BPS constructions. The tree-level spectra are obtained in each case. We identify various models with distinct physics: parallel brane-antibrane pairs, adjacent pair... | ['2000-01-12'] |
4,259 | ['eng'] | ['Bergshoeff, E A', 'Halbersma, R'] | ['On Domain-wall/QFT dualities in various dimensions'] | ['Particle Physics - Theory'] | ['talk, Dubna 1999/09/21', 'space-time, anti-de Sitter', 'membrane model, D-brane', 'membrane model, p-brane', 'dimension, 10', 'p-brane, 0', 'domain wall'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001065'] | ['We investigate domain-wall/quantum field theory correspondences in various dimensions. We give particular emphasis to the special case of the quantum mechanics of 0--branes.'] | ['2000-01-12'] |
4,260 | ['eng'] | ['Abreu, E M C'] | ['The effect of different regulators in the non-local field-antifield quantization'] | ['Particle Physics - Theory'] | ['quantization, Batalin-Vilkovisky', 'regularization, nonlocal', 'Schwinger model, chiral', 'dimension, 2', 'antifield', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001064'] | ['Recently it was shown how to regularize the Batalin-Vilkovisky (BV) field-antifield formalism of quantization of gauge theories with the non-local regularization (NLR) method. The objective of this work is to make an analysis of the behaviour of this NLR formalism, connected to the BV framework, using two different r... | ['2000-01-12'] |
4,261 | ['eng'] | ['Kato, A', 'Satoh, Y'] | ['Modular invariance of string theory on $AdS_{3}$'] | ['Particle Physics - Theory'] | ['string model', 'space-time, anti-de Sitter', 'dimension, 3', 'current algebra, SL(2,R)', 'Wess-Zumino-Witten model', 'invariance, modular', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001063'] | ['We discuss the modular invariance of the SL(2,R) WZW model. In particular, we discuss in detail the modular invariants using the \\hat{sl}(2,R) characters based on the discrete unitary series of the SL(2,R) representations. The explicit forms of the corresponding characters are known when no singular vectors appear. ... | ['2000-01-12'] |
4,262 | ['eng'] | ['Kokorelis, C E'] | ['Gauge and Gravitational Couplings from Modular Orbits in Orbifold Compactifications'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'spontaneous compactification, orbifold', 'boundary condition', 'invariance, modular', 'gravitation, coupling constant', 'analytic properties', 'moduli space', 'Wilson loop', 'coupling, gauge', 'threshold, correction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001062'] | ['We discuss the appearance of modular functions at the one-loop gauge and gravitational couplings in (0,2) non-decomposable N=1 four dimensional orbifold compactifications of the heterotic string. We define the limits for the existence of states causing singularities in the moduli space in the perturbative regime for ... | ['2000-01-12'] |
4,263 | ['eng'] | ['Wehner, A', 'Wheeler, J T'] | ['Biconformal Matter Actions'] | ['Particle Physics - Theory'] | ['space-time', 'field theory, conformal', 'field theory, scalar', 'torsion', 'differential forms', 'field equations, solution', 'field theory, action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001061'] | ['We extend 2n-dim biconformal gauge theory by including Lorentz-scalar matter fields of arbitrary conformal weight. We show that for a massless scalar field of conformal weight zero in a torsion-free biconformal geometry, the solution is determined by the Einstein equation on an n-dim submanifold, with the stress-ener... | ['2000-01-12'] |
4,264 | ['eng'] | ['Bonanno, A'] | ['Non-perturbative scaling in the scalar theory'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'any-dimensional', 'scaling, nonperturbative', 'Fokker-Planck equation', 'renormalization group, transformation', 'boundary condition', 'propagator'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001060'] | ["A new approach to study the scaling behavior of the scalar theory near the Gaussian fixed point in $d$-dimensions is presented. For a class of initial data an explicit use of the Green's function of the evolution equation is made. It is thus discussed under which conditions non-polynomial relevant interactions can be... | ['2000-01-12'] |
4,265 | ['eng'] | ['Piskorski, J'] | ['The operator form of the effective potential governing the time evolution in n-dimensional subspace of states'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'Schroedinger equation', 'Hamiltonian formalism', 'phase space', 'effective potential', 'density matrix'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001058'] | ['This paper presents the operator form of the effective potential V governing the time evolution in 2 and 3 and n dimensional subspace of states. The general formula for the n dimensional case is considered the starting point for the calculation of the explicit formulae for 2 and 3 dimensional degenerate and non-degen... | ['2000-01-12'] |
4,266 | ['eng'] | ['Suzuki, K'] | ['$D0-D4$ system and $QCD_{3+1}$'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 0', 'p-brane, 4', 'supergravity', 'quantum chromodynamics', 'glueball, mass', 'Wilson loop', 'Kaluza-Klein model', 'dilaton', 'background field'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001057'] | ['We consider a $(3+1)$ dimensional QCD model using the duality of the supergravity and the large $N$ gauge theory, using the non-extremal $D0-D4$ branes as the supergravity background. We calculate the spectrum of the glueball masses and the Wilson loop in this background. The mass spectrum is shown to coincide with o... | ['2000-01-12'] |
4,267 | ['eng'] | ['Khoury, J M', 'Verlinde, Herman L'] | ['On Open/Closed String Duality'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'string, open', 'string, closed', 'expansion 1/N', 'field theory, anti-de Sitter', 'field theory, conformal', 'duality', 'renormalization group, transformation', 'charge, Becchi-Rouet-Stora', 'moduli space', 'sigma model, nonlinear', 'effective action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001056', 'http://pascal.intlpress.com/journals/ATMP/archive/'] | ["It was recently shown, using the AdS/CFT correspondence, that the low energy effective action of a large $N$ open string theory satisfies a holographic RG flow equation closely related to the Hamilton-Jacobi equation of 5-d supergravity. In this paper we re-obtain the same flow equation in the dual regime of small 't... | ['2000-01-11'] |
4,268 | ['eng'] | ['Berenstein, D E', 'Leigh, Robert G'] | ['Discrete Torsion, AdS/CFT and duality'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'orbifold, abelian', 'torsion, discrete', 'field theory, anti-de Sitter', 'field theory, conformal', 'duality', 'supergravity', 'operator, chiral', 'moduli space', 'homology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001055'] | ['We analyse D-branes on orbifolds with discrete torsion, extending earlier results. We analyze certain Abelian orbifolds of the type C^3/ \\Gamma, where parameter. By comparing with the AdS/CFT correspondence, we can consider different geometries which give rise to the same physics. This identifies new mirror pairs an... | ['2000-01-11'] |
4,269 | ['eng'] | ['Pelc, O'] | ['Holography, Singularities on Orbifolds and 4D N=2 SQCD'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'spontaneous compactification, Calabi-Yau', 'orbifold, singularity', 'holography', 'Kaluza-Klein model', 'field theory, conformal', 'gauge field theory, SU(N)', 'moduli space', 'infrared problem, fixed point', 'decoupling', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001054'] | ["Type II string theory compactified on a Calabi-Yau manifold, with a singularity modeled by a hypersurface in an orbifold, is considered. In the limit of vanishing string coupling, one expects a non gravitational theory concentrated at the singularity. It is proposed that this theory is holographicly dual to a family ... | ['2000-01-11'] |
4,270 | ['eng'] | ['Maldacena, J M', 'Ooguri, H'] | ['Strings in $AdS_{3}$ and SL(2,R) WZW Model, 1'] | ['Particle Physics - Theory'] | ['string model, boson', 'space-time, anti-de Sitter', 'dimension, 3', 'Wess-Zumino-Witten model, SL(2,R)', 'phase space, Hilbert space', 'approximation, quasiclassical', 'current algebra', 'ghost', 'scattering amplitude', 'operator, vertex', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001053'] | ['In this paper we study the spectrum of bosonic string theory on AdS_3. We study classical solutions of the SL(2,R) WZW model, including solutions for long strings with non-zero winding number. We show that the model has a symmetry relating string configurations with different winding numbers. We then study the Hilber... | ['2000-01-11'] |
4,271 | ['eng'] | ['Tkach, V I', 'Pashnev, A I', 'Rosales, J J'] | ['On the Schrödinger Equation for the Minisuperspace Models'] | ['Particle Physics - Theory'] | ['Friedman model', 'space-time, Robertson-Walker', 'minisuperspace', 'Hamiltonian formalism', 'Schroedinger equation, time dependence', 'supersymmetry', 'invariance, reparametrization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001052'] | ['We obtain a time-dependent Schrodinger equation for the Friedmann - Robertson - Walker (FRW) model interacting with a homogeneous scalar matter field. We show that for this purpose it is necesary to include an additional action invariant under the reparametrization of time. The last one does not change the equations ... | ['2000-01-11'] |
4,272 | ['eng'] | ['Park, I Y', 'Von Unge, R'] | ['Hyperkähler Quotients, Mirror Symmetry and F-theory'] | ['Particle Physics - Theory'] | ['F-theory', 'symmetry, mirror', 'field theory, Kaehler', 'group theory, E(7)', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001051'] | ['Using the graphical method developed in hep-th/9908082, we obtain the full curve corresponding to the hyperkähler quotient from the extended E_7 Dynkin diagram. As in the E_6 case discussed in the same paper above, the resulting curve is the same as the one obtained by Minahan and Nemeschansky. Our results seem to in... | ['2000-01-11'] |
4,273 | ['eng'] | ['Tyutin, I V'] | ['Once again on the equivalence theorem'] | ['Particle Physics - Theory'] | ['equivalence theorem', 'field theory', 'symmetry, transformation', 'vertex function', 'perturbation theory, higher-order', 'regularization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001050'] | ['We present the proof of the equivalence theorem in quantum field theory which is based on a formulation of this problem in the field-anitfield formalism. As an example, we consider a model in which a different choices of natural finite counterterms is possible, leading to physically non-equivalent quantum theories wh... | ['2000-01-11'] |
4,274 | ['eng'] | ['Gallot, Laurent', 'Lerda, A', 'Strigazzi, P'] | ['Gauge and gravitational interactions of non-BPS D-particles'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'particle, relativistic', 'particle, D-particle', 'particle, interaction', 'field equations, solution', 'operator, algebra', 'gauge field theory', 'gravitation', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001049'] | ['We study the gauge and gravitational interactions of the stable non-BPS D-particles of the type I string theory. The gravitational interactions are obtained using the boundary state formalism while the SO(32) gauge interactions are determined by evaluating disk diagrams with suitable insertions of boundary changing (... | ['2000-01-11'] |
4,275 | ['eng'] | ['Finster, F'] | ['The Principle of the Fermionic Projector; 2, Introduction and Continuum Limit'] | ['Particle Physics - Theory'] | ['space-time, discrete', 'fermion, statistics', 'wave function', 'mathematical methods, variational', 'perturbation theory, higher-order', 'regularization', 'gauge field theory', 'relativity theory, general', 'quantum mechanics', 'continuum limit', 'Dirac equation', 'fermion, many-body problem', 'regularization', 'vacu... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001048'] | ['Combining a local gauge principle, the Pauli Exclusion Principle, and the principles of General Relativity in a particular way, we obtain the mathematical framework for the formulation of a new type of variational principle in space-time. The postulate that physics can be formulated within this framework is called th... | ['2000-01-11'] |
4,276 | ['eng'] | ['Makeenko, Y M'] | ['Large-N Gauge Theories'] | ['Particle Physics - Theory'] | ['lectures, Akureyri 1999/08/10', 'gauge field theory, SU(N)', 'fermion', 'four-fermion interaction', 'model, vector', 'symmetry, O(N)', 'perturbation theory, higher-order', 'invariance, conformal', 'sigma model, nonlinear', 'any-dimensional', 'expansion 1/N', 'approximation, quasiclassical', 'Feynman graph, planar', '... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001047'] | ['Four pedagogical Lectures at the NATO-ASI on "Quantum Geometry" in Akureyri, Iceland, August 1999. Contents: 1. O(N) Vector Models, 2. Large-N QCD, 3. QCD in Loop Space, 4. Large-N Reduction'] | ['2000-01-11'] |
4,277 | ['eng'] | ['Crater, H W', 'Lusanna, L'] | ['The Rest-Frame Darwin Potential from the Lienard-Wiechert Solution in the Radiation Gauge'] | ['Particle Physics - Theory'] | ['charged particle, relativistic', 'scalar particle', 'electromagnetic field', 'space-time', 'Hamiltonian formalism', 'dependence, gauge', 'constraint', 'tensor, energy-momentum', 'phase space', 'effective potential', 'radiation, gauge', 'approximation, quasiclassical', 'many-body problem', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001046'] | ['In the semiclassical approximation in which the electric charges of scalar particles are described by Grassmann variables ($Q_i^2=0, Q_iQ_j\\ne 0$), it is possible to re-express the Lienard-Wiechert potentials and electric fields in the radiation gauge as phase space functions, because the difference among retarded, ... | ['2000-01-11'] |
4,278 | ['eng'] | ['Kenneth, O', 'Nussinov, S'] | ['A new "polarized version" of the Casimir Effect is measurable'] | ['Particle Physics - Theory'] | ['effect, Casimir', 'angular dependence', 'electromagnetic field', 'partition function', 'energy', 'proposed experiment', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001045'] | ['We argue that the exactly computable, angle dependent, Casimir force between parallel plates with different directions of conductivity can be measured.'] | ['2000-01-11'] |
4,279 | ['eng'] | ['Matsuo, Y'] | ['Tachyon condensation and Boundary States in Bosonic String'] | ['Particle Physics - Theory'] | ['talk, Kyoto 1999/10/27', 'string model, boson', 'gauge field theory, SO(32)', 'dimension, 10', 'tachyon, condensation', 'field theory, conformal', 'Hilbert space', 'orbifold', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001044'] | ['We discuss tachyon configuration for the unoriented bosonic string theory which produces a bosonic string theory with SO(32) gauge symmetry in ten dimensions. It is closely related to the tachyon condensation scenario proposed by A. Sen. We also give the boundary state description of the tachyon condensation process,... | ['2000-01-11'] |
4,280 | ['eng'] | ['Wang, Z', 'Zhang, A'] | ['A new massive vector field theory'] | ['Particle Physics - Theory'] | ['field theory, vector', 'field theory, massive', 'field theory, Dirac', 'field equations', 'quantization', 'Hamiltonian formalism', 'propagator', 'transformation, gauge', 'charge, conservation law', 'quantum electrodynamics', 'renormalization', 'invariance, Lorentz', 'electron positron, annihilation', 'pair production... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001043'] | ['In this paper, we put forth a new massive spin-1 field theory. In contrast to the quantization of traditional vector field, the quantization of the new vector field is carried out in a natural way. The Lorentz invariance of the theory is discussed, where owing to an interesting feature of the new vector field, the Lo... | ['2000-01-11'] |
4,281 | ['eng'] | ['Glazek, S D'] | ['Running Couplings in Hamiltonians'] | ['Particle Physics - Theory'] | ['talk, Adelaide 1999/12/13', 'phi**n model, 3', 'dimension, 6', 'quantum chromodynamics', 'dimension, 4', 'Hamiltonian formalism', 'asymptotic freedom', 'perturbation theory, higher-order', 'renormalization group', 'bound state', 'vertex function, (3gluon)', 'Schroedinger equation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001042'] | ['We describe key elements of the perturbative similarity renormalization group procedure for Hamiltonians using two, third-order examples: phi^3 interaction term in the Hamiltonian of scalar field theory in 6 dimensions and triple-gluon vertex counterterm in the Hamiltonian of QCD in 4 dimensions. These examples provi... | ['2000-01-11'] |
4,282 | ['eng'] | ['Bastianelli, F', 'Frolov, S', 'Tseytlin, Arkady A'] | ['Conformal anomaly of (2,0) tensor multiplet in six dimensions and AdS/CFT correspondence'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'field theory, conformal', 'supersymmetry', 'dimension, 6', 'anomaly, conformal', 'multiplet, tensor', 'perturbation theory, higher-order', 'regularization, heat kernel', 'supergravity', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001041'] | ['We compute conformal anomaly of free d=6 superconformal (2,0) tensor multiplet on generic curved background. Up to a trivial covariant total-derivative term, it is given by the sum of the type A part proportional to the 6-d Euler density, and the type B part containing three independent Weyl invariants. Multiplied by... | ['2000-01-11'] |
4,283 | ['eng'] | ['Polshin, S A'] | ['Quantization of fields over de Sitter space by the method of generalized coherent states; 1, Scalar field'] | ['Particle Physics - Theory'] | ['space-time, de Sitter', 'Klein-Gordon equation', 'group theory, de Sitter', 'coherent state', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001040'] | ['A system of generalized coherent states for the de Sitter group obeying Klein-Gordon equation and corresponding to the massive spin zero particles over the de Sitter space is considered. This allows us to construct the quantized scalar field by the resolution over these coherent states; the corresponding propagator c... | ['2000-01-11'] |
4,284 | ['eng'] | ['Tsoupros, G'] | ['Radiative Contributions to the Effective Action of Self-Interacting Scalar Field on a Manifold with Boundary'] | ['Particle Physics - Theory'] | ['space-time', 'boundary condition', 'field theory, scalar', 'invariance, conformal', 'effective action', 'perturbation theory, higher-order', 'regularization, dimensional', 'tadpole, massless', 'quantization, correction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001039'] | ['The effect of quantum corrections to a conformally invariant field theory for a self-interacting scalar field on a curved manifold with boundary is considered. The analysis is most easily performed in a space of constant curvature the boundary of which is characterised by constant extrinsic curvature. An extension of... | ['2000-01-11'] |
4,285 | ['eng'] | ['Ksenzov, V G'] | ['On the Non-perturbative Properties of the Yang-Mills Vacuum and the Vacuum Energy Density'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'vacuum state', 'energy, density', 'nonperturbative', 'field theory, Euclidean', 'Hamiltonian formalism', 'charge, topological'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001038'] | ['The non-perturbative part of the vacuum energy density for static configuration in pure SU(2) Y-M theory is described. The vacuum state is constructed.'] | ['2000-01-11'] |
4,286 | ['eng'] | ['Naka, M', 'Nozaki, M'] | ['Boundary states in Gepner models'] | ['Particle Physics - Theory'] | ['Gepner model', 'field theory, conformal', 'field theory, rational', 'dimension, 2', 'algebra, chiral', 'central charge', 'phase space, boundary condition', 'partition function', 'moduli space', 'analytic properties', 'geometry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001037'] | ['We extend the construction of the boundary states in Gepner models to the non-diagonal modular invariant theories. Our construction includes all the known Gepner models. We also investigate the relation between the microscopic charges of the boundary states and Ramond charges of the B-type D-branes on the Calabi-Yau ... | ['2000-01-11'] |
4,287 | ['eng'] | ['Carlino, G', 'Konishi, K I', 'Murayama, H'] | ['Dynamics of Supersymmetric $SU(n_{c})$ and $USp(2n_{c})$ Gauge Theories'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'gauge field theory, USp(N)', 'supersymmetry', 'symmetry, flavor', 'symmetry, dynamically broken', 'effective potential', 'vacuum state', 'approximation, quasiclassical', 'magnetic monopole, condensation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001036'] | ["We study dynamical flavor symmetry breaking in the context of a class of $N=1$ supersymmetric $SU(n_c)$ and $USp(2 n_c)$ gauge theories, constructed from the exactly solvable $N=2$ theories by perturbing them with small adjoint and generic bare hypermultiplet (quark) masses. We find that the flavor $U(n_{f})$ symmetr... | ['2000-01-10'] |
4,288 | ['eng'] | ['Berkovits, N'] | ['Super-Poincaré Covariant Quantization of the Superstring'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry, superspace', 'dimension, 10', 'quantization', 'invariance, Poincare', 'cohomology, Becchi-Rouet-Stora', 'operator, vertex', 'scattering amplitude', 'space-time', 'field theory, action', 'sigma model, nonlinear'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001035'] | ['Using pure spinors, the superstring is covariantly quantized. For the first time, massless vertex operators are constructed and scattering amplitudes are computed in a manifestly ten-dimensional super-Poincaré covariant manner. Quantizable non-linear sigma model actions are constructed for the superstring in curved b... | ['2000-01-10'] |
4,289 | ['eng'] | ['Pfenning, M J'] | ['Vacuum Polarization and Energy Conditions at a Planar Frequency Dependent Dielectric to Vacuum Interface'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'boundary condition', 'vacuum state', 'tensor, energy-momentum', 'quantization', 'Hamiltonian formalism', 'radiation', 'vacuum polarization', 'dielectric'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001034'] | ['The form of the vacuum stress-tensor for the quantized scalar field at a dielectric to vacuum interface is studied. The dielectric is modeled to have an index of refraction that varies with frequency. We find that the stress-tensor components, derived from the mode function expansion of the Wightman function, are nat... | ['2000-01-10'] |
4,290 | ['eng'] | ['Csáki, C', 'Erlich, J', 'Hollowood, Timothy J', 'Shirman, Yu'] | ['Universal Aspects of Gravity Localized on Thick Branes'] | ['Particle Physics - Theory'] | ['gravitation, fluctuation', 'membrane model', 'Kaluza-Klein model', 'space-time, higher-dimensional', 'field theory, scalar', 'tensor, energy-momentum', 'invariance, Poincare', 'graviton', 'domain wall', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001033'] | ["We study gravity in backgrounds that are smooth generalizations of the Randall-Sundrum model, with and without scalar fields. These generalizations include three-branes in higher dimensional spaces which are not necessarily Anti-de Sitter far from the branes, intersecting brane configurations and configurations invol... | ['2000-01-10'] |
4,291 | ['eng'] | ['Jurco, B', 'Schupp, P'] | ['Noncommutative Yang-Mills from equivalence of star products'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'differential geometry, noncommutative', 'membrane model, D-brane', 'quantization, deformation', 'phase space, boundary condition', 'Seiberg-Witten model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001032'] | ['It is shown that the transformation between ordinary and noncommutative Yang-Mills theory as formulated by Seiberg and Witten is due to the equivalence of certain star products on the D-brane world-volume.'] | ['2000-01-10'] |
4,292 | ['eng'] | ['Bolotin, K I', 'Vasilev, M A'] | ['Star-Product and Massless Free Field Dynamics in $AdS_{4}$'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'spin, high', 'field theory, massless', 'field equations', 'transformation, gauge', 'plane wave'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001031'] | ['Generic solution of free equations for massless fields of an arbitrary spin in $AdS_4$ is built in terms of the star-product algebra with spinor generating elements. A class of "plane wave" solutions is described explicitly.'] | ['2000-01-10'] |
4,293 | ['eng'] | ['Sen, S', 'Sen, S', 'Sexton, J C', 'Adams, D H'] | ['A geometric discretisation scheme applied to the Abelian Chern-Simons theory'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Chern-Simons term', 'lattice field theory, simplex', 'space-time, triangulation', 'partition function', 'geometry', 'differential forms', 'field theory, topological', 'torsion', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001030'] | ["We give a detailed general description of a recent geometrical discretisation scheme and illustrate, by explicit numerical calculation, the scheme's ability to capture topological features. The scheme is applied to the Abelian Chern-Simons theory and leads, after a necessary field doubling, to an expression for the d... | ['2000-01-10'] |
4,294 | ['eng'] | ['Cachazo, F A', 'Vafa, C'] | ["Type I' and Real Algebraic Geometry"] | ['Particle Physics - Theory'] | ['string model, heterotic', 'duality', 'dimension, 8-10', 'symmetry breaking, Wilson loop', 'spontaneous compactification', 'moduli space', 'group theory, representation', 'F-theory', 'membrane model', 'geometry, algebra', 'perturbation theory'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001029'] | ["We revisit the duality between type I' and heterotic strings in 9 dimensions. We resolve a puzzle about the validity of type I' perturbation theory and show that there are regions in moduli which are not within the reach of type I' perturbation theory. We find however, that all regions of moduli are described by a sp... | ['2000-01-10'] |
4,295 | ['eng'] | ['Seminara, D'] | ['Tree Amplitudes and Linearized SUSY Invariants in D=11 Supergravity'] | ['Particle Physics - Theory'] | ['talk, Villasimius 1999/09/14', 'supergravity', 'dimension, 11', 'scattering amplitude', 'tree approximation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001028'] | ['We exploit the tree level bosonic 4-particle scattering amplitudes in D=11 supergravity to construct the bosonic part of a linearized supersymmetry-, coordinate- and gauge-invariant. By differentiation, this invariant can be promoted to be the natural lowest (two-loop) order counterterm. Its existence implies that th... | ['2000-01-10'] |
4,296 | ['eng'] | ['Iso, S', 'Kawai, H', 'Kitazawa, Y'] | ['Bi-local Fields in Noncommutative Field Theory'] | ['Particle Physics - Theory'] | ['field theory, noncommutative', 'field theory, nonlocal', 'effective action', 'perturbation theory, higher-order', 'Feynman graph, planar', 'gauge field theory, U(N)', 'expansion 1/N', 'matrix model', 'interaction, long-range', 'dimensional reduction', 'phi**n model', 'infrared problem'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001027'] | ['We propose a bi-local representation in noncommutative field theory. It provides a simple description for high momentum degrees of freedom. It also shows that the low momentum modes can be well approximated by ordinary local fields. Long range interactions are generated in the effective action for the lower momentum ... | ['2000-01-10'] |
4,297 | ['eng'] | ['Hirshfeld, A C', 'Schwarzweller, T'] | ['Poisson-$\\sigma$ Models'] | ['Particle Physics - Theory'] | ['talk, Dubna 1999/09/21', 'sigma model, nonlinear', 'gravitation', 'dimension, 2', 'quantization, Batalin-Vilkovisky', 'dependence, gauge', 'path integral', 'gauge field theory, Yang-Mills'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001026'] | ['We investigate the Poisson-Sigma model on the classical and quantum level. In the classical analysis we show how this model includes various known two-dimensional field theories. Then we perform the calculation of the path integral in a general gauge, and demonstrate that the derived partition function reduces to the... | ['2000-01-10'] |
4,298 | ['eng'] | ['Greene, Brian R', 'Lazaroiu, C I'] | ['Collapsing D-Branes in Calabi-Yau Moduli Space, 1'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'field theory, Calabi-Yau', 'moduli space', 'analytic properties', 'geometry, algebra', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001025'] | ["We study the quantum volume of D-branes wrapped around various cycles in Calabi-Yau manifolds, as the manifold's moduli are varied. In particular, we focus on the behaviour of these D-branes near phase transitions between distinct low energy physical descriptions of the resulting string theory. Whereas previous studi... | ['2000-01-07'] |
4,299 | ['eng'] | ['Gauntlett, J P', 'Gibbons, G W', 'Hull, C M', 'Townsend, P K'] | ['BPS states of D=4 N=1 supersymmetry'] | ['Particle Physics - Theory'] | ['supersymmetry', 'soliton, BPS', 'particle, multiplet', 'domain wall', 'M-theory', 'Wess-Zumino model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0001024'] | ['We find the combinations of momentum and domain-wall charges corresponding to BPS states preserving 1/4, 1/2 or 3/4 of D=4 N=1 supersymmetry. These states form the boundary of the convex cone associated with the Jordan algebra of $4\\times 4$ real symmetric matrices, and we explore some implications of the associated... | ['2000-01-07'] |
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