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2,200
['eng']
['Chaichian, Masud', 'Chen, W F', 'Felipe, R G']
['Radiatively Induced Lorentz and CPT Violation in Schwinger Constant Field Approximation']
['Particle Physics - Theory']
['quantum electrodynamics', 'fermion, chiral', 'violation, CPT', 'symmetry breaking, Lorentz', 'perturbation theory, higher-order', 'expansion, derivative', 'Chern-Simons term']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010129']
['The Schwinger proper-time method is an effective calculation method, explicitly gauge invariant and nonperturbative. We make use of this method to investigate the radiatively induced Lorentz and CPT-violating effects in quantum electrodynamics when an axial vector interaction term is introduced in the fermionic secto...
['2000-10-17']
2,201
['eng']
['Alexandre, J', 'Polonyi, J']
['Functional Callan-Symanzik equation']
['Particle Physics - Theory']
['effective action', 'renormalization group, transformation', 'path integral', 'dependence, mass', 'perturbation theory, higher-order']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010128']
['We describe a functional method to obtain the exact evolution equation of the effective action with a parameter of the bare theory. When this parameter happens to be the bare mass of the scalar field, we find a functional generalization of the Callan-Symanzik equations. Another possibility is when this parameter is t...
['2000-10-17']
2,202
['eng']
['Lin, F L']
['Casimir Effect of Graviton and the Entropy Bound']
['Particle Physics - Theory']
['gravitation', 'effect, Casimir', 'partition function', 'invariance, modular', 'membrane model, p-brane', 'graviton', 'entropy', 'analytic properties']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010127']
["In this note we calculate the Casimir effect of free thermal gravitons in Einstein universe and discuss how it changes the entropy bound condition proposed recently by Verlinde as a higher dimensional generalization of Cardy's formula for conformal field theories (CFT). We find that the graviton's Casimir effect is n...
['2000-10-17']
2,203
['eng']
['Filk, T']
['Random graph gauge theories as toy models for non-perturbative string theories']
['Particle Physics - Theory']
['matrix model', 'graph theory, random', 'space-time, lattice', 'gauge field theory, Z(2)', 'Wilson loop', 'Ising model', 'duality, transformation']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010126']
['We present simple models which exhibit some of the remarkable features expected to hold for the as yet unknown non-perturbative formulation of string theories. Among these are: (a) the absence of a background or embedding space for the full theory; (b) perturbative ground states (local minima of the action) having th...
['2000-10-17']
2,204
['eng']
['Ekstrand, C']
['Cohomology and Topological Anomalies']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'fermion, chiral', 'any-dimensional', 'anomaly', 'topology', 'commutation relations', 'transformation, gauge', 'cohomology', 'Schwinger terms']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010125']
['The chiral anomaly can be considered as an object defined either on the space of gauge potentials or on the orbit space. We will discuss the relation between the two descriptions. We will also relate to the cohomology of the group of gauge transformations.']
['2000-10-17']
2,205
['eng']
["D'Auria, R", 'Ferrara, Sergio', 'Lledó, M A', 'Varadarajan, V S']
['Spinor Algebras']
['Particle Physics - Theory']
['spinor', 'supersymmetry, algebra', 'space-time, signature', 'any-dimensional', 'algebra, Clifford', 'algebra, Poincare', 'algebra, symplectic', 'algebra, conformal']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010124']
["We consider supersymmetry algebras in space-times with arbitrary signature and minimal number of spinor generators. The interrelation between super Poincar\\'e and super conformal algebras is elucidated. Minimal super conformal algebras are seen to have as bosonic part a classical semimisimple algebra naturally assoc...
['2000-10-17']
2,206
['eng']
['Ford, C']
['Quantum Parafermions in the SL(2,R)/U(1) WZNW Black Hole Model']
['Particle Physics - Theory']
['talk, Torun 2000/06/06', 'field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'coset space, SL(2,R)/U(1)', 'fermion, parastatistics', 'black hole']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010123']
['Starting with its classical parafermion algebra, we consider the quantisation of the SL(2,R)/U(1) WZNW black hole model.']
['2000-10-17']
2,207
['eng']
['Garousi, M R', 'Myers, R C']
['World-Volume Potentials on D-branes']
['Particle Physics - Theory']
['membrane model, D-brane', 'membrane model, p-brane', 'Born-Infeld model', 'string model', 'scattering amplitude, higher-order', 'field theory, action', 'bibliography']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010122']
['By evaluating string scattering amplitudes, we investigate various low energy interactions for the massless scalars on a nonabelian Dirichlet brane. We confirm the existence of couplings of closed string fields to the world-volume scalars, involving commutators of the latter. Our results are consistent with the recen...
['2000-10-17']
2,208
['eng']
['Rama, S K']
['Brane World Scenario with m-form field']
['Particle Physics - Theory']
['Randall-Sundrum model', 'dimension, >4', 'field theory, tensor', 'differential forms', 'membrane model', 'space, torus', 'field equations, solution', 'effective potential']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010121']
['We consider (n + m + 1) dimensional bulk spacetime, containing flat (n + m - 1) dimensional parallel branes, with topology ${\\bf R^{n - 1} \\times T^m}$. We assume that the graviton and an $m$-form field are the only bulk fields and that the $m$-form field has non vanishing components along the ${\\bf T^m}$ directio...
['2000-10-17']
2,209
['eng']
['Dymnikova, I G', 'Koziel, L', 'Khlopov, M Ya', 'Rubin, S']
['Quasilumps from first order phase transitions']
['Particle Physics - Theory']
['astrophysics', 'critical phenomena', 'bubble, interaction', 'finite temperature', 'field theory, scalar', 'oscillation', 'energy, vacuum state', 'vacuum state, decay', 'numerical calculations']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010120']
['We investigated the bubble collisions during the first order phase transitions. Numerical results indicate that within the certain range of parameters the collision of two bubbles leads to formation of separate relatively long-lived quasilumps - configurations filled with scalar field oscillating around the true vacu...
['2000-10-17']
2,210
['eng']
['Furuuchi, K']
['Dp-D(p+4) in Noncommutative Yang-Mills']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'supersymmetry', 'differential geometry, noncommutative', 'matrix model', 'field equations, instanton', 'duality', 'membrane model, D-brane', 'membrane model, p-brane', 'bound state']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010119']
['An anti-self-dual instanton solution in Yang-Mills theory on noncommutative R^4 with anti-self-dual noncommutative parameter is constructed. The solution is constructed by the ADHM construction and treated in the framework of IIB matrix model. In IIB matrix model this solution is interpreted as a system of a Dp-brane...
['2000-10-17']
2,211
['eng']
['Bastianelli, F', 'Corradini, O']
['6D trace anomalies from quantum mechanical path integrals']
['Particle Physics - Theory']
['quantum mechanics', 'dimension, 6', 'path integral', 'regularization, dimensional', 'anomaly, conformal']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010118']
['We use the recently developed dimensional regularization (DR) scheme for quantum mechanical path integrals in curved space and with a finite time interval to compute the trace anomalies for a scalar field in six dimensions. This application provides a further test of the DR method applied to quantum mechanics. It sho...
['2000-10-17']
2,212
['eng']
['Ferrara, Sergio', 'Sokatchev, Emery S']
['Representations of superconformal algebras in the $AdS_{7/4}/CFT_{6/3}$ correspondence']
['Particle Physics - Theory']
['talk, Ann Arbor 2000/07/10', 'field theory, conformal', 'field theory, anti-de Sitter', 'group theory, OSp(8,N)', 'group theory, representation', 'supersymmetry, superspace', 'superspace, harmonic', 'bibliography']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010117']
['We perform a general analysis of representations of the superconformal algebras OSp(8/4,R) and OSp(8*/2N) in harmonic superspace. We present a construction of their highest-weight UIR\'s by multiplication of the different types of massless conformal superfields ("supersingletons"). In particular, all "short multiplet...
['2000-10-17']
2,213
['eng']
['Park, I Y', 'Sadrzadeh, A', 'Tuan, T A']
['Super Yang-Mills Operators from the D3-brane Action in a Curved Background']
['Particle Physics - Theory']
['membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 3', 'supergravity', 'dimension, 10', 'dimensional reduction', 'Kaluza-Klein model', 'gauge field theory, Yang-Mills', 'supersymmetry', 'n-point function', 'Born-Infeld model', 'Wess-Zumino term']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010116']
['A consistent truncation of IIB on S^5 has been obtained in the sector of the metric and the 4-form potential. The ansatz contains 20 scalars and all 15 gauge fields of ${\\cal N}=8$ gauged supergravity in five dimensions. With this fully non-linear ansatz, the calculations for n-point correlators of super Yang-Mills ...
['2000-10-17']
2,214
['eng']
['Dorey, N']
['Instantons, Compactification and S-duality in N=4 SUSY Yang-Mills Theory, 1']
['Particle Physics - Theory']
['gauge field theory, SU(2)', 'supersymmetry', 'dimension, 4', 'spontaneous compactification, S(1)', 'dimension, 3', 'R parity', 'Wilson loop', 'effective action', 'perturbation theory, higher-order', 'mass spectrum', 'instanton']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010115']
['We study N=4 supersymmetric Yang-Mills (SYM) theory with gauge group SU(2) compactified to three dimensions on a circle of circumference beta. The eight fermion terms in the effective action on the Coulomb branch are determined exactly, for all beta, assuming the existence of an interacting Spin(8) invariant fixed po...
['2000-10-17']
2,215
['eng']
['Linares, R', 'Urrutia, L F', 'Vergara, J D']
['Hamiltonian Solution of the Schwinger Model with Compact U(1)']
['Particle Physics - Theory']
['Schwinger model', 'dimension, 2', 'symmetry, U(1)', 'field theory, compact', 'integrability', 'quantization, constraint', 'Gauss law', 'Hamiltonian formalism', 'fermion, zero mode', 'loop space', 'algebra, commutation relations', 'Fock space', 'energy', 'numerical calculations']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010114']
['The complete exact solution of the Schwinger model with compact gauge group U(1), in the Hamiltonian approach, is presented . The compactification is imposed by demanding that the only surviving true electromagnetic degree of freedom has angular character. Not surprinsingly, this topological condition defines a versi...
['2000-10-17']
2,216
['eng']
['Grandi, N E', 'Silva, G A']
['Chern-Simons action in noncommutative space']
['Particle Physics - Theory']
['gauge field theory, U(N)', 'Chern-Simons term', 'dimension, 3', 'fermion, Dirac', 'field theory, induced', 'perturbation theory, higher-order', 'Wess-Zumino-Witten model', 'differential geometry, noncommutative']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010113']
['We derive the noncommutative Chern-Simons action induced by Dirac fermions coupled to a background gauge field, for the fundamental, antifundamental, and the adjoint representation. We discuss properties of the noncommutative Chern-Simons action showing in particular that the Seiberg-Witten formula maps it into the s...
['2000-10-16']
2,217
['eng']
['Kehagias, A A', 'Tamvakis, Kyriakos']
['Localized Gravitons, Gauge Bosons and Chiral Fermions in Smooth Spaces Generated by a Bounce']
['Particle Physics - Theory']
['relativity theory, general', 'field theory, scalar', 'dimension, 5', 'Einstein equation, solution', 'space-time, anti-de Sitter', 'fermion, chiral', 'gauge field theory, U(1)', 'graviton']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010112']
['We study five-dimensional solutions to Einstein equations coupled to a scalar field. Bounce-type solutions for the scalar field are associated with AdS_5 spaces with smooth warp functions. Gravitons are dynamically localized in this framework in analogy to the Randall-Sundrum solution whereas, a bulk fermion gives ri...
['2000-10-16']
2,218
['eng']
['Brihaye, Y', 'Piette, B M A G', 'Tchrakian, D H']
['Instantons in 4-dimensional gauged O(5) Skyrme models']
['Particle Physics - Theory']
['Skyrme model', 'sigma model', 'gauge field theory, O(5)', 'gauge, SO(4)', 'symmetry, rotational', 'field equations, solution', 'numerical calculations']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010111']
['We consider a family of four-dimensional non-linear sigma models based on an O(5) symmetric group, whose fields take their values on the 4-sphere $S^4$. An SO(4)-subgroup of the model is gauged. The one dimensional equations arising from the variation of the action density subjected to spherical symmetry are integrat...
['2000-10-16']
2,219
['eng']
['Zucchini, R']
['Relative Topological Integrals and Relative Cheeger-Simons Differential Characters']
['Particle Physics - Theory']
['string model', 'membrane model, D-brane', 'charge, topological', 'path integral', 'cohomology', 'duality', 'differential forms']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010110']
['Topological integrals appear frequently in Lagrangian field theories. On manifolds without boundary, they can be treated in the framework of ordinary (co)homology using the formalism of Cheeger-Simons differential characters. String and D-brane theory involve field theoretic models on worldvolumes with border. On man...
['2000-10-16']
2,220
['eng']
['Simionato, M']
['Exact Renormalization Group in Algebraic Noncovariant Gauges']
['Particle Physics - Theory']
['talk, Rome 2000/09/18', 'gauge field theory, Yang-Mills', 'regularization, dependence', 'renormalization group', 'invariance, Becchi-Rouet-Stora', 'Ward identity', 'Wilson loop']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010109']
['I study a class of Wilsonian formulations of non-Abelian gauge theories in algebraic noncovariant gauges where the Wilsonian infrared cutoff $\\Lambda$ is inserted as a mass term for the propagating fields. In this way the Ward-Takahashi identities are preserved to all scales. Nevertheless the BRS-invariance in broke...
['2000-10-16']
2,221
['eng']
['Kutasov, D', 'Marino, M', 'Moore, G']
['Remarks on Tachyon Condensation in Superstring Field Theory']
['Particle Physics - Theory']
['field theory, string', 'supersymmetry', 'boundary condition', 'tachyon, condensation', 'perturbation theory, higher-order', 'membrane model, D-brane', 'membrane model, p-brane']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010108']
['We generalize recent results on tachyon condensation in boundary string field theory to the superstring.']
['2000-10-16']
2,222
['eng']
['Palev, T D', 'Van der Jeugt, J']
['Jacobson generators, Fock representations and statistics of sl(n+1)']
['Particle Physics - Theory']
['algebra, SL(N)', 'algebra, representation', 'linear spaces, Fock space', 'Hamiltonian formalism', 'bibliography']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010107']
['The properties of A-statistics, related to the class of simple Lie algebras sl(n+1) (Palev, T.D.: Preprint JINR E17-10550 (1977); hep-th/9705032), are further investigated. The description of each sl(n+1) is carried out via generators and their relations, first introduced by Jacobson. The related Fock spaces W_p (p=1...
['2000-10-16']
2,223
['eng']
['Nastase, H', 'Siegel, Warren']
['A new AdS/CFT correspondence']
['Particle Physics - Theory']
['string model', 'supersymmetry', 'dimension, 10', 'space, sphere', 'space-time, anti-de Sitter', 'holography', 'random, lattice', 'boson, string', 'duality', 'field theory, conformal', 'gauge field theory, Yang-Mills']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010106']
['We consider a geometric zero-radius limit for strings on $AdS_5\\times S^5$, where the anti-de Sitter hyperboloid becomes the projective lightcone. In this limit the fifth dimension becomes nondynamical, yielding a different "holographic" interpretation than the usual "bulk to boundary" one. When quantized on the ran...
['2000-10-13']
2,224
['eng']
['Brodie, J', 'Susskind, Leonard', 'Toumbas, N']
['How Bob Laughlin Tamed the Giant Graviton from Taub-NUT space']
['Particle Physics - Theory']
['space-time, Taub-NUT', 'membrane model, D-brane', 'string model', 'energy', 'graviton', 'electron', 'dimension, 2', 'soliton', 'Hall effect', 'quasiparticle', 'fermion, composite']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010105']
['In this paper we show how two dimensional electron systems can be modeled by strings interacting with D-branes. The dualities of string theory allow several descriptions of the system. These include descriptions in terms of solitons in the near horizon six-brane theory, non-commutative gauge theory on a \\dt and fina...
['2000-10-13']
2,225
['eng']
['Roiban, R', 'Siegel, Warren']
['Superstrings on $AdS_{5} x S^{5}$ supertwistor space']
['Particle Physics - Theory']
['string model', 'supersymmetry, superspace', 'dimension, 10', 'space-time, anti-de Sitter', 'space, S(5)', 'field theory, action', 'coset space', 'transformation, conformal', 'twistor', 'kappa symmetry']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010104']
['We derive the Green-Schwarz action on AdS_5 x S^5 using an alternate version of the coset superspace construction. By Wick rotations and Lie algebra identifications we bring the coset to GL(4|4)/(Sp(4) x GL(1))^2, which allows us to represent the conformal transformations on unconstrained matrices. The derivation is ...
['2000-10-13']
2,226
['eng']
['Hofman, C M', 'Park, J S']
['Cohomological Yang-Mills Theories on Kahler 3-Folds']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'space, Kaehler', 'supersymmetry', 'fibre bundle', 'field theory, deformation', 'Donaldson theory']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010103']
['We study topological gauge theories with N=(2,0) supersymmetry based on stable bundles on general Kahler 3-folds. In order to have a theory that is well defined and well behaved, we consider a model based on an extension of theusual holomorphic bundle by including a holomorphic 3-form. The correlation functions of th...
['2000-10-13']
2,227
['eng']
['Labastida, J M F', 'Marino, M', 'Vafa, C']
['Knots, links and branes at large N']
['Particle Physics - Theory']
['gauge field theory, SU(N)', 'Chern-Simons term', 'dimension, 3', 'space, S(3)', 'string model, topological', 'Wilson loop', 'soliton, BPS', 'duality', 'knot theory', 'expansion 1/N', 'membrane model']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010102']
['We consider Wilson loop observables for Chern-Simons theory at large N and its topological string dual and extend the previous checks for this duality to the case of links. We find an interesting structure involving representation/spin degeneracy of branes ending on branes which features in the large N dual descripti...
['2000-10-13']
2,228
['eng']
['Bars, Itzhak', 'Kajiura, H', 'Matsuo, Y', 'Takayanagi, T']
['Tachyon Condensation on Noncommutative Torus']
['Particle Physics - Theory']
['field theory, scalar', 'dimension, 3', 'differential geometry, noncommutative', 'soliton', 'field theory, torus', 'mass spectrum', 'duality', 'membrane model, D-brane', 'membrane model, p-brane', 'stability']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010101']
['We discuss noncommutative solitons on a noncommutative torus and their application to tachyon condensation. In the large B limit, they can be exactly described by the Powers-Rieffel projection operators known in the mathematical literature. The resulting soliton spectrum is consistent with T-duality and is surprising...
['2000-10-13']
2,229
['eng']
['Liao, S B', 'Lin, C Y', 'Strickland, M']
['Self-consistent renormalization group flow']
['Particle Physics - Theory']
['phi**n model, 4', 'renormalization group, transformation', 'propagator', 'perturbation theory, higher-order', 'regularization', 'asymptotic expansion', 'critical phenomena', 'numerical calculations']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010100']
['A self-consistent renormalization group flow equation for the scalar lambda phi^4 theory is analyzed and compared with the local potential approximation. The two prescriptions coincide in the sharp cutoff limit but differ with a smooth cutoff. The dependence of the critical exponent nu on the smoothness parameter and...
['2000-10-13']
2,230
['eng']
['Silva, S']
['From ADM to Brane-World charges']
['Particle Physics - Theory']
['talk, Paris 2000/09/07', 'space-time', 'membrane model', 'transformation, gauge', 'charge, conservation law', 'potential, superpotential', 'gravitation']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010099']
['We first recall a covariant formalism used to compute conserved charges in gauge invariant theories. We then study the case of gravity for two different boundary conditions, namely spatial infinity and a Brane-World boundary. The new conclusion of this analysis is that the gravitational energy (and linear and angular...
['2000-10-13']
2,231
['eng']
['Silva, S']
['Brane-World charges']
['Particle Physics - Theory']
['membrane model, D-brane', 'any-dimensional', 'boundary condition', 'charge, conservation law', 'field equations, solution']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010098']
['As opposed to usual Einstein gravity in four dimensions, the Brane-World scenario allows the construction of a local density of gravitational energy (and also of momentum, of angular momentum, etc...). This is a direct consequence of the hypothesis that our universe is located at the boundary of a five-dimensional di...
['2000-10-13']
2,232
['eng']
['Christodoulakis, T', 'Diamandis, G A', 'Georgalas, B C', 'Vagenas, E C']
['Bogoliubov Coefficients of 2D Charged Black Holes']
['Particle Physics - Theory']
['gravitation', 'dilaton', 'dimension, 2', 'black hole, charge', 'radiation, Hawking', 'dependence, gauge', 'Bogolyubov transformation', 'numerical calculations']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010097']
['We exactly calculate the thermal distribution and temperature of Hawking radiation for a two-dimensional charged dilatonic black hole after it has settled down to an "equilibrium" state. The calculation is carried out using the Bogoliubov coefficients. The background of the process is furnished by a preexisting black...
['2000-10-13']
2,233
['eng']
['Ikeda, N']
['A Deformation of Three Dimensional BF Theory']
['Particle Physics - Theory']
['field theory, tensor', 'field theory, BF', 'dimension, 3', 'field theory, deformation', 'transformation, Becchi-Rouet-Stora', 'transformation, gauge', 'nonabelian']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010096']
['We consider a deformation of three dimensional BF theory by means of the antifield BRST formalism. Possible deformations for the action and the gauge symmetries are analyzed. We find a new class of gauge theories which include nonabelian BF theory, higher dimensional nonlinear gauge theory and topological membrane th...
['2000-10-13']
2,234
['eng']
['Bonanno, A', 'Zappalà, D']
['Towards an accurate determination of the critical exponents with the Renormalization Group flow equations']
['Particle Physics - Theory']
['field theory, scalar', 'symmetry, O(N)', 'renormalization group, transformation', 'perturbation theory, higher-order', 'scaling, violation', 'critical phenomena', 'expansion, derivative', 'numerical calculations']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010095']
['The determination of the critical exponents by means of the Exact Renormalizion Group approach is still a topic of debate. The general flow equation is by construction scheme independent, but the use of the truncated derivative expansion generates a model depencence in the determination of the universal quantities. W...
['2000-10-13']
2,235
['eng']
['Corrigan, E']
['Boundary bound states in integrable quantum field theories']
['Particle Physics - Theory']
['talk, Paris 2000/09/07', 'field theory, scalar', 'dimension, 2', 'boundary condition', 'sinh-Gordon model', 'soliton', 'quantization, quasiclassical', 'weak coupling', 'strong coupling', 'duality', 'bootstrap', 'energy spectrum']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010094']
['The purpose of this talk is to sketch some recent progress which has been made in calculating non-perturbatively the reflection factors for the sinh-Gordon model restricted to a half-line by integrable boundary conditions. The essential idea is to calculate the energy spectrum of boundary breathers in two independent...
['2000-10-13']
2,236
['eng']
['Kim, J E', 'Lee, H M']
['Gravity in the Einstein-Gauss-Bonnet Theory with the Randall-Sundrum Background']
['Particle Physics - Theory']
['Randall-Sundrum model', 'dimension, 5', 'dimension, 4', 'graviton, propagator', 'field equations, solution', 'gravitation, potential', 'Gauss-Bonnet term', 'gravitation, local']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010093']
['We obtain the full 5D graviton propagator in the Randall-Sundrum model with the Gauss-Bonnet interaction. From the decomposition of the graviton propagator on the brane, we show that localization of gravity arises in the presence of the Gauss-Bonnet term. We also obtain the Newtonian potential with the help of the br...
['2000-10-13']
2,237
['eng']
['Evslin, J', 'Varadarajan, U', 'Wang, J E']
['Backreaction; 1, The Torus']
['Particle Physics - Theory']
['membrane model, D-brane', 'spontaneous compactification', 'moduli space', 'fluctuation', 'space, Calabi-Yau', 'space, torus', 'dilaton', 'uncertainty relations', 'back reaction', 'scattering amplitude']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010092']
['We use wrapped D-brane probes to measure position dependent perturbations of compactification moduli. Due to the backreaction of the D-branes on the local geometry, we suspect that measuring the fluctuations of one modulus to high precision will generically affect the others. These considerations lead us to conjectur...
['2000-10-13']
2,238
['eng']
['Cvetic, M', 'Uranga, A M', 'Wang, J']
['Discrete Wilson Lines in N=1 D=4 Type IIB Orientifolds']
['Particle Physics - Theory']
['Wilson loop, discrete', 'orientifold, Z(6)', 'orbifold', 'T-duality', 'algebra, constraint', 'algebra, representation', 'particle, multiplet', 'coupling, Yukawa']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010091']
['We develop techniques to construct general discrete Wilson lines in four-dimensional N=1 Type IIB orientifolds, their T-dual realization corresponds to branes positioned at the orbifold fixed points. The explicit order two and three Wilson lines along with their tadpole consistency conditions are given for D=4 N=1 Z_...
['2000-10-12']
2,239
['eng']
['Gross, David J', 'Nekrasov, N A']
['Solitons in Noncommutative Gauge Theory']
['Particle Physics - Theory']
['gauge field theory, U(N)', 'differential geometry, noncommutative', 'soliton', 'stability', 'dimension, 2-4', 'charge, topological', 'plane wave', 'fermion, condensation', 'Seiberg-Witten model', 'monopole, BPS']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010090']
['We present a unified treatment of classical solutions of noncommutative gauge theories. We find all solutions of the noncommutative Yang-Mills equations in 2 dimensions; and show that they are labelled by two integers -- the rank of gauge group and the magnetic charge. The magnetic vortex solutions are unstable in 2+...
['2000-10-12']
2,240
['eng']
['Finkelstein, R J']
['TCP in q-Lorentz Theories']
['Particle Physics - Theory']
['group theory, Lorentz', 'group theory, deformation', 'spin, statistics', 'transformation, CPT']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010089']
['The connection between spin and statistics implied by the continuous Lorentz group together with strong reflection (TCP) is shown to hold also for the q-Lorentz group.']
['2000-10-12']
2,241
['eng']
['Pando-Zayas, L A', 'Tseytlin, Arkady A']
['3-branes on resolved conifold']
['Particle Physics - Theory']
['supergravity', 'dimension, >4', 'solution', 'membrane model, D-brane', 'membrane model, p-brane', 'differential geometry, conifold', 'superpotential']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010088']
["The type IIB supergravity solution describing a collection of regular and fractional D3 branes on the conifold (hep-th/0002159) was recently generalized to the case of the deformed conifold (hep-th/0007191). Here we present another generalization -- when the conifold is replaced by the resolved conifold. This solutio...
['2000-10-12']
2,242
['eng']
['Faux, M', 'Lüst, Dieter', 'Ovrut, B A']
['An M-Theory Perspective on Heterotic K3 Orbifold Compactifications']
['Particle Physics - Theory']
['M-theory, heterotic', 'hierarchy', 'spontaneous compactification, orbifold', 'geometry, algebra', 'anomaly', 'group theory, representation']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010087']
['We analyze the structure of heterotic M-theory on K3 orbifolds by presenting a comprehensive sequence of M-theoretic models constructed on the basis of local anomaly cancellation. This is facilitated by extending the technology developed in our previous papers to allow one to determine "twisted" sector states in non-...
['2000-10-12']
2,243
['eng']
['Gregori, A']
['Rank 48 gauge group in heterotic string']
['Particle Physics - Theory']
['string model, heterotic', 'duality', 'dimension, >4', 'spontaneous compactification', 'group theory, representation', 'instanton']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010086']
["We discuss the existence of a non-perturbative gauge sector that can raise the rank of the gauge group of the N_4=2 heterotic string up to 48. These gauge bosons, that don't exist in six dimensions, co-exist with those originating from small instantons shrinking to zero size."]
['2000-10-12']
2,244
['eng']
['Cartier, C']
['Relic gravitons from non-singular string cosmologies']
['Particle Physics - Theory']
['talk, Verbier 2000/07/17', 'string model', 'effective action', 'astrophysics, model', 'graviton, background', 'numerical calculations']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010085']
['In the context of the pre-Big Bang scenario of string cosmology, we propose a modified equation for the evolution of the tensor perturbations, which includes the full contribution of possible higher-order curvature and coupling corrections required to regularise the background evolution. We then discuss the high-freq...
['2000-10-12']
2,245
['eng']
['Klimcík, C', 'Parkhomenko, S E']
['Monodromic strings']
['Particle Physics - Theory']
['string model', 'string, open', 'string, closed', 'sigma model, nonlinear', 'duality']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010084']
['We argue that apart from the standard closed and open strings one may consider a third possibility that we call monodromic strings. The monodromic string propagating on a target looks like an ordinary open string (a mapping from a segment to the target) but its space of states is isomorphic to that of a closed string...
['2000-10-12']
2,246
['eng']
['Mansson, T', 'Sundborg, B']
['Multi-Black Hole Sectors of $AdS_{3}$ Gravity']
['Particle Physics - Theory']
['gravitation', 'space-time, anti-de Sitter', 'dimension, 3', 'gauge field theory, SO(2,1) x SO(2,1)', 'Chern-Simons term', 'field equations, solution', 'black hole', 'transformation, gauge', 'holonomy']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010083']
['We construct and discuss solutions of SO(1,2)xSO(1,2) Chern-Simons theory which correspond to multiple BTZ black holes. These solutions typically have additional singularities, the simplest cases being special conical singularities with a 2pi surplus angle. There are solutions with all singularities inside a common o...
['2000-10-12']
2,247
['eng']
['Natividade, C P', 'Boschi-Filho, H', 'Belvedere, L V']
['BFFT formalism applied to the minimal chiral Schwinger model']
['Particle Physics - Theory']
['Schwinger model, chiral', 'dimension, 2', 'quantization', 'Hamiltonian formalism', 'transformation, Becchi-Rouet-Stora', 'constraint', 'Wess-Zumino term', 'effective action']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010081']
['The minimal chiral Schwinger model is discussed from the Batalin-Fradkin-Fradkina-Tyutin point of view. The conversion of second-class constraints to first-class ones results in an extended gauge-invariant theory which is equivalent for $a=2$ to the vector Schwinger model at the Lagrangian level. Here, we present arg...
['2000-10-12']
2,248
['eng']
['Belvedere, L V', 'De Souza-Dutra, A', 'Natividade, C P', 'De Queiroz, A F']
['Structural aspects of the fermion-boson mapping in two-dimensional gauge and anomalous gauge theories with massive fermions']
['Particle Physics - Theory']
['gauge field theory, U(1)', 'fermion, massive', 'dimension, 2', 'anomaly', 'bosonization', 'fermionization', 'Wess-Zumino-Witten model', 'path integral']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010080']
['Using a synthesis of the functional integral and operator approaches we discuss the fermion-boson mapping and the role played by the Bose field algebra in the Hilbert space of two-dimensional gauge and anomalous gauge field theories with massive fermions. In the $QED_2$ with quartic self-interaction among massive fer...
['2000-10-12']
2,249
['eng']
['Chaichian, Masud', 'Nishijima, K']
['Renormalization Constant of the Color Gauge Field as a Probe of Confinement']
['Particle Physics - Theory']
['quantum chromodynamics', 'color, confinement', 'renormalization', 'superconducting', 'invariance, Becchi-Rouet-Stora', 'asymptotic freedom', 'renormalization group', 'quark antiquark, potential']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010079']
['The mechanism of color confinement as a consequence of an unbroken non-abelian gauge symmetry and asymptotic freedom is elucidated and compared with that of other models based on an analogy with the type II superconductor. It is demonstrated that a sufficient condition for color confinement is given by $Z_3^{-1}=0$ w...
['2000-10-12']
2,250
['eng']
['Mironov, A E']
['Seiberg-Witten Theories, Integrable Models and Perturbative Prepotentials']
['Particle Physics - Theory']
['gauge field theory, SU(N)', 'supersymmetry', 'Seiberg-Witten model', 'integrability', 'geometry, algebra', 'potential']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010078']
['This is a very brief review of relations between Seiberg-Witten theories and integrable systems with emphasis on the perturbative prepotentials presented at the E.S.Fradkin Memorial Conference.']
['2000-10-12']
2,251
['eng']
['Alvarez, Enrique', 'Donaire, M', 'Hernández, L J']
['Sigma Model Corrections to the Confining Background']
['Particle Physics - Theory']
['boson, string model', 'dimension, 26', 'confinement', 'background field', 'sigma model, nonlinear', 'invariance, Poincare', 'boundary condition']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010077']
["Sigma model ($\\alpha^{\\prime}$) corrections to the confining string background are obtained. The main result is that the Poincar\\'e invariant ansatz is maintained. Physical conditions for the dissapearance of the naked singularity are discussed."]
['2000-10-12']
2,252
['eng']
['Nicolai, Hermann C', 'Samtleben, H']
['Maximal gauged supergravity in three dimensions']
['Particle Physics - Theory']
['supergravity', 'gauge field theory, E(8)', 'dimension, 3', 'gauge field theory, SO(8) x SO(8)', 'field theory, action', 'Chern-Simons term', 'particle, multiplet', 'group theory, representation']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010076']
['We construct maximally supersymmetric gauged N=16 supergravity in three dimensions. Among the possible gauge groups, all of which are subgroups of the E_8 symmetry of ungauged N=16 supergravity, SO(8)xSO(8) is distinguished as the maximal compact gauge group, but there are also more exotic possibilities such as F_4 x...
['2000-10-12']
2,253
['eng']
['Joglekar, S D', 'Misra, A']
['Absence of Nonlocal Counter-terms in the Gauge Boson Propagator in Axial -type Gauges']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'effective action', 'gauge boson, propagator', 'dependence, gauge', 'ghost', 'perturbation theory, higher-order', 'regularization']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010075']
["We study the two-point function for the gauge boson in the axial-type gauges. We use the exact treatment of the axial gauges recently proposed that is intrinsically compatible with the Lorentz type gauges in the path-integral formulation and has been arrived at from this connection and which is a ``one-vector'' treat...
['2000-10-12']
2,254
['eng']
['Cho, Y M', 'Pak, D G']
['Renormalization of QED Effective Action']
['Particle Physics - Theory']
['quantum electrodynamics', 'effective action', 'perturbation theory, higher-order', 'renormalization', 'analytic properties', 'fundamental constant, fine structure', 'numerical calculations']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010073']
['In the preceeding letter we have obtained a non-perturbative but convergent series of the one loop effective action of QED. In this paper we discuss the renormalization of the effective action. In particular we show that our effective action provides a new method to estimate the fine structure constant at an arbitrar...
['2000-10-12']
2,255
['eng']
['Das-Gupta, K', 'Ganor, O J', 'Rajesh, G']
['Vector Deformations of N=4 Super-Yang-Mills Theory, Pinned Branes, and Arched Strings']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'supersymmetry', 'deformation, vector', 'membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 3', 'flux, magnetic', 'string model', 'field theory, dipole']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010072']
['We study a deformation of N=4 Super-Yang-Mills theory by a dimension-5 vector operator. There is a simple nonlocal "dipole" field-theory that realizes this deformation. We present evidence that this theory is realized in the setting of "pinned-branes". The dipoles correspond to open strings that arch out of the brane...
['2000-10-12']
2,256
['eng']
['Dvali, G', 'Gabadadze, Gregory T', 'Shifman, M']
['(Quasi)Localized Gauge Field on a Brane']
['Particle Physics - Theory']
['membrane model', 'gauge field theory, induced', 'field theory, massless', 'dimension, >4', 'cosmic radiation, dissipation', 'fermion', 'domain wall', 'propagator']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010071']
["We propose a mechanism ensuring (quasi)localization of massless gauge fields on a brane. The mechanism does not rely on BPS properties of the brane and can be realized in any theory where charged particles are confined to the world-volume. The localized matter fluctuations induce a gauge kinetic term on the brane. At...
['2000-10-12']
2,257
['eng']
['Janik, R A']
['String Fluctuations, AdS/CFT and the Soft Pomeron Intercept']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'strong coupling', 'field theory, conformal', 'field theory, anti-de Sitter', 'approximation, strong coupling', 'scattering amplitude', 'Wilson loop', 'correlation function', 'string model', 'fluctuation', 'analytic properties', 'pomeron']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010069']
['We study high energy scattering amplitudes in a strongly coupled (confining) gauge theory using the AdS/CFT correspondence. The scattering described by a Wilson line/loop correlation function was shown earlier to correspond to minimal surfaces of the helicoid type, and gave amplitudes with unit intercept and linear t...
['2000-10-11']
2,258
['eng']
['Gorsky, A S']
['RG flows on the phase spaces and $\\tau$ functions for the generic Hamiltonian systems']
['Particle Physics - Theory']
['quantization', 'Hamiltonian formalism', 'renormalization group, transformation', 'lattice, Toda', 'integrability', 'analytic properties', 'mathematical methods, tau-function']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010068']
['We discuss the generic definition of the $\\tau$ function for the arbitrary Hamiltonian system. The different approaches concerning the deformations of the curves and surfaces are compared. It is shown that the Baker-Akhiezer function for the secondary integrable system of the Toda lattice type can be identified with...
['2000-10-11']
2,259
['eng']
['Chen, B', 'Itoyama, H', 'Matsuo, T', 'Murakami, K']
['Correspondence between Noncommutative Soliton and Open String/D-brane System via Gaussian Damping Factor']
['Particle Physics - Theory']
['string model, open', 'membrane model, D-brane', 'membrane model, p-brane', 'scattering amplitude, higher-order', 'field theory, scalar', 'differential geometry, noncommutative', 'soliton']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010066']
["The gaussian damping factor (g.d.f.) and the new interaction vertex with the symplectic tensor are the characteristic properties of the N-point scalar-vector scattering amplitudes of the p-p' (p < p') open string system which realizes noncommutative geometry. The g.d.f. is here interpreted as a form factor of the Dp-...
['2000-10-11']
2,260
['eng']
['Casadio, R', 'Gruppuso, A', 'Venturi, G']
['Electromagnetic Contributions to Lepton g-2 in a Thick Brane-World']
['Particle Physics - Theory']
['membrane model', 'lepton, magnetic moment', 'radiative correction, higher-order', 'excited state', 'mass, lower limit', 'effective Lagrangian', 'dimension, 4', 'space-time', 'dimension, 5', 'numerical calculations, interpretation of experiments']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010065']
["We consider Standard Model fields living inside a thick four dimensional flat brane embedded in a (possibly warped) five dimensional space-time and estimate the electromagnetic corrections to the anomalous magnetic moment (g-2) of the electron and muon by including virtual massive fermion and gauge boson states. Cons...
['2000-10-11']
2,261
['eng']
['Fosco, C D', 'Kovner, A']
['Vortices and bags in 2+1 dimension']
['Particle Physics - Theory']
['gauge field theory, SU(N)', 'dimension, 3', 'effective Lagrangian', 'symmetry, Z(N)', 'vortex', 'bag model', 'Wilson loop', 'baryon, model', 'quark, heavy']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010064']
['We consider the effect of the (heavy) fundamental quarks on the low energy effective Lagrangian description of nonabelian gauge theories in 2+1 dimensions. We show that in the presence of the fundamental charges, the magnetic $Z_N$ symmetry becomes local. We construct the effective Lagrangian representing this local ...
['2000-10-11']
2,262
['eng']
['Langlois, D']
['Evolution of cosmological perturbations in a brane-universe']
['Particle Physics - Theory']
['membrane model', 'space-time, anti-de Sitter', 'dimension, 5', 'space-time, perturbation']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010063']
['The present article analyses the impact on cosmology, in particular on the evolution of cosmological perturbations, of the existence of extra-dimensions. The model considered here is that of a five-dimensional Anti-de Sitter spacetime where ordinary matter is confined to a brane-universe. The homogeneous cosmology is...
['2000-10-11']
2,263
['eng']
['Sarkar, S', 'Patra, B K', 'Menon, V J', 'Mallik, S']
['Spectral Representation at Finite Temperature']
['Particle Physics - Theory']
['field theory, scalar', 'finite temperature', 'propagator, spectral representation', 'Dyson equation, solution', 'perturbation theory, higher-order']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010062']
['We present a derivation of the spectral representation for the complete propagator of a scalar field in the real-time formulation of the quantum field theory at finite temperature. The properties of the spectral function are discussed. We also review the solution of the Dyson equation for this propagator.']
['2000-10-11']
2,264
['eng']
['Edelstein, J D', 'Gómez-Reino, M']
['Integrable hierarchies in Donaldson-Witten and Seiberg-Witten theories']
['Particle Physics - Theory']
['talk, Chicago 2000/07/22', 'gauge field theory, SU(2)', 'supersymmetry', 'geometry, algebra', 'Seiberg-Witten model', 'Donaldson theory', 'partition function', 'Korteweg-de Vries equation, hierarchy', 'bibliography']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010061']
['We review various aspects of integrable hierarchies appearing in N=2 supersymmetric gauge theories. In particular, we show that the blowup function in Donaldson-Witten theory, up to a redefinition of the fast times, is a tau function for a g-gap solution of the KdV hierarchy. In the case of four-manifolds of simple t...
['2000-10-10']
2,265
['eng']
['Harvey, J A', 'Kraus, P', 'Larsen, F']
['Exact Noncommutative Solitons']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'Higgs model', 'dimension, 3', 'differential geometry, noncommutative', 'soliton', 'field theory, string', 'membrane model, D-brane', 'vacuum state', 'vortex', 'tachyon', 'bibliography']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010060']
['We find exact solitons in a large class of noncommutative gauge theories using a simple solution generating technique. The solitons in the effective field theory description of open string field theory are interpreted as D-branes for any value of the noncommutativity. We discuss the vacuum structure of open string fi...
['2000-10-10']
2,266
['eng']
['Kreimer, D']
['Combinatorics of (perturbative) quantum field theory']
['Particle Physics - Theory']
['review', 'Feynman graph, higher-order', 'algebra, Lie', 'algebra, Hopf', 'regularization', 'renormalization group', 'graph theory', 'bibliography']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010059', 'http://www.slac.stanford.edu/econf/C000911/proceedings.html']
['We review the structures imposed on perturbative QFT by the fact that its Feynman diagrams provide Hopf and Lie algebras. We emphasize the role which the Hopf algebra plays in renormalization by providing the forest formulas. We exhibit how the associated Lie algebra originates from an operadic operation of graph ins...
['2000-10-10']
2,267
['eng']
['Li, M']
['Note on Noncommutative Tachyon in Matrix Models']
['Particle Physics - Theory']
['matrix model', 'membrane model', 'field equations, solution', 'supersymmetry, symmetry breaking', 'gauge field theory', 'tachyon, condensation', 'symmetry, rotational', 'differential geometry, noncommutative']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010058']
['The solution representing a brane-anti-brane system in matrix models breaks the usual matrix spacetime symmetry. We show that the spacetime symmetry on the branes is not breaking, rather appears as a combination of the matrix spacetime transformation and a gauge transformation. As a result, the tachyon field, itself ...
['2000-10-10']
2,268
['eng']
['Saller, H']
['Residual Representations of Spacetime']
['Particle Physics - Theory']
['space-time', 'quantization', 'operator, algebra', 'group theory, Lie', 'group theory, representation']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010057']
['Spacetime is modelled by binary relations - by the classes of the automorphisms $\\GL(\\C^2)$ of a complex 2-dimensional vector space with respect to the definite unitary subgroup $\\U(2)$. In extension of Feynman propagators for particle quantum fields representing only the tangent spacetime structure, global spacet...
['2000-10-10']
2,269
['eng']
['Devchand, C', 'Nuyts, J']
['Democratic N-extended Supersymmetry']
['Particle Physics - Theory']
['space-time', 'supersymmetry, algebra', 'commutation relations', 'operator, differential', 'invariance, Lorentz']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010056']
['We present generalisations of N-extended supersymmetry algebras in four dimensions, using Lorentz covariance and invariance under permutation of the N supercharges as selection criteria.']
['2000-10-10']
2,270
['eng']
['Hambli, N']
['On the Holographic RG-flow and the Low-energy, Strong Coupling, Large N Limit']
['Particle Physics - Theory']
['field theory, conformal', 'field theory, anti-de Sitter', 'any-dimensional', 'renormalization group', 'holography', 'Hamiltonian formalism', 'constraint', 'expansion 1/N', 'approximation, quasiclassical', 'strong coupling', 'Schroedinger equation', 'effective action', 'boundary condition', 'bibliography']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010054']
["From the AdS/CFT correspondence, we learn that the classical evolution of supergravity in the bulk can be reduced to a RG-flow equation for the dual low-energy, strongly coupled and large N gauge theory on the boundary. This result has been used to obtain interesting relations between the various terms in the gravita...
['2000-10-10']
2,271
['eng']
['Piguet, O']
['Diffeomorphism Invariant Theories and Vector Supersymmetry']
['Particle Physics - Theory']
['talk, Moscow 2000/06/05', 'gravitation', 'differential forms', 'field equations', 'field theory, tensor', 'field theory, BF', 'transformation, Becchi-Rouet-Stora', 'dependence, gauge', 'supersymmetry, vector', 'diffeomorphism, invariance', 'ghost', 'field theory, topological']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010053']
['Einstein gravity in the Palatini first order formalism is shown to possess a vector supersymmetry of the type encountered in the topological gauge theories. A peculiar feature of the gravitationel theory is the link of this vector supersymmetry with the field equation of motion of the Faddeev-Popov ghost associated t...
['2000-10-10']
2,272
['eng']
['Grassi, P A', 'Policastro, G', 'Porrati, Massimo']
['Notes on the Quantization of the Complex Linear Superfield']
['Particle Physics - Theory']
['supersymmetry, superfield', 'quantization, Batalin-Vilkovisky', 'operator, algebra', 'ghost', 'transformation, Becchi-Rouet-Stora', 'bibliography']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010052']
['The quantization of the complex linear superfield requires an infinite tower of ghosts. Using the Batalin-Vilkovisky technique, Grisaru, Van Proeyen, and Zanon have been able to define a correct procedure to construct a gauge-fixed action. We generalize their technique by introducing the Lagrange multipliers into the...
['2000-10-10']
2,273
['eng']
['Landim, R R', 'Almeida, C A S']
['Topologically massive nonabelian BF models in arbitrary space-time dimensions']
['Particle Physics - Theory']
['field theory, tensor', 'field theory, BF', 'nonabelian', 'mass, topological', 'any-dimensional', 'transformation, Becchi-Rouet-Stora']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010050']
['This work extends to the D-dimensional space-time the topological mass generation mechanism of the nonabelian BF model in four dimensions. In order to construct the gauge invariant nonabelian kinetic terms for a (D-2)-form B and a 1-form A, we introduce an auxiliary (D-3)-form V. Furthermore, we obtain a complete set...
['2000-10-10']
2,274
['eng']
['Zanelli, J']
['Chern-Simons Gravity']
['Particle Physics - Theory']
['talk, Sao Lourenco 1999/10/25', 'talk, Merida 1999/11/01', 'gravitation', 'gauge field theory, Yang-Mills', 'Chern-Simons term', 'any-dimensional', 'supersymmetry, algebra', 'supergravity']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010049']
['These lectures provide an elementary introduction to Chern Simons Gravity and Supergravity in $d=2n+1$ dimensions.']
['2000-10-09']
2,275
['eng']
['Brandhuber, A', 'Sfetsos, K']
['Current correlators in the Coulomb branch of N=4 SYM']
['Particle Physics - Theory']
['supergravity', 'dimension, 5', 'gauge field theory, SU(6)', 'field theory, anti-de Sitter', 'field theory, conformal', 'expansion 1/N', 'current, two-point function', 'universality', 'symmetry breaking', 'membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 3']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010048']
['We study correlators of R-symmetry currents in the Coulomb branch of N = 4 supersymmetric gauge theory in the large-N limit, using the AdS/CFT correspondence. In particular, we consider gauge fields in the presence of gravity and scalar fields parameterizing the coset SL(6,R)/SO(6) in the context of five-dimensional ...
['2000-10-09']
2,276
['eng']
['Colatto, L P', 'Penna, A L A', 'Polito, C M M']
['On Finite Matricial Bidimensional Aspects of a D=4n+2 Simple Field Models']
['Particle Physics - Theory']
['field theory, classical', 'field theory, scalar', 'spinor', 'tensor, energy-momentum', 'field equations', 'operator, differential']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010047']
['We present a finite matricial bi-dimensional structure of the ordinary coordinate frame based on the contraction of the Dirac $\\Gamma $ matrices in Weyl representation to the derivatives in a D=4n+2 spinorial models. Particularly we treat space-times with signatures (2n+1,2n+1) and show two sets of independent matri...
['2000-10-09']
2,277
['eng']
['García-Compéan, H', 'Loaiza-Brito, O']
['Topics on Strings, Branes and Calabi-Yau Compactifications']
['Particle Physics - Theory']
['review', 'gauge field theory, SU(3) x SU(2) x U(1)', 'grand unified theory', 'string model', 'supersymmetry', 'spontaneous compactification, Calabi-Yau', 'duality, transformation', 'M-theory', 'F-theory', 'effective action']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010046']
['Basics of some topics on perturbative and non-perturbative string theory are reviewed. After a mathematical survey of the Standard Model of particle physics and GUTs, the bosonic string kinematics for the free case and with interaction is described. The effective action of the bosonic string and the spectrum is also ...
['2000-10-09']
2,278
['eng']
['Lambert, N D', 'Sachs, I']
['String Loop Corrections to Stable Non-BPS Branes']
['Particle Physics - Theory']
['string model', 'supersymmetry', 'loop space', 'membrane model, D-brane', 'membrane model, p-brane', 'orbifold, T(4)/Z(2)', 'soliton', 'stability', 'scattering amplitude', 'phase space', 'boundary condition', 'tachyon']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010045']
['We calculate the string loop corrections to the tachyon potential for stable non-BPS Dp-branes on the orbifold T^4/Z_2. We find a non-trivial phase structure and we show that, after tachyon condensation, the non-BPS Dp-branes are attracted to each other for p=0,1,2. We then identify the corresponding closed string bo...
['2000-10-09']
2,279
['eng']
['Bandos, I A', 'Bandos, T']
['Lorentz harmonics and superfield action']
['Particle Physics - Theory']
['string model', 'supersymmetry, superfield', 'dimension, 10', 'field theory, action', 'coset space', 'differential forms', 'constraint', 'hidden symmetry', 'field equations', 'bibliography']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010044']
["We propose a new version of the superfield action for a closed D=10, N=1 superstring where the Lorentz harmonics are used as auxiliary superfields. The incorporation of Lorentz harmonics into the superfield action makes possible to obtain superfield constraints of the induced worldsheet supergravity as equations of m...
['2000-10-09']
2,280
['eng']
['Levin, A', 'Olshanetsky, M A']
['Hamiltonian Algebroid Symmetries in W-gravity and Poisson sigma-model']
['Particle Physics - Theory']
['gravitation, W(N)', 'Hamiltonian formalism', 'group theory, geometrical', 'algebra, Lie', 'transformation, Becchi-Rouet-Stora', 'sigma model, nonlinear', 'field theory, action']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010043']
['Starting from a Lie algebroid ${\\cal A}$ over a space $V$ we lift its action to the canonical transformations on the principle affine bundle ${\\cal R}$ over the cotangent bundle $T^*V$. Such lifts are classified by the first cohomology $H^1({\\cal A})$. The resulting object is the Hamiltonian algebroid ${\\cal A}^H...
['2000-10-09']
2,281
['eng']
['Cederwall, Martin', 'Gran, U G', 'Nielsen, M', 'Nilsson, B E W']
['Generalised 11-dimensional supergravity']
['Particle Physics - Theory']
['talk, Copenhagen 2000/06/19', 'talk, Moscow 2000/06/05', 'M-theory', 'effective action', 'supergravity', 'dimension, 11', 'torsion, constraint', 'current, multiplet', 'supersymmetry, representation', 'Bianchi identity']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010042']
["The low-energy effective dynamics of M-theory, eleven-dimensional supergravity, is taken off-shell in a manifestly supersymmetric superspace formulation. We show that a previously proposed relaxation of the torsion constraints can indeed accomodate a current supermultiplet. We comment on the relation and application ...
['2000-10-09']
2,282
['eng']
['Hatanaka, H', 'Matsumoto, S', 'Ohnishi, K', 'Sakamoto, M']
['Symmetry Breaking/Restoration in a Non-Simply Connected Space-Time']
['Particle Physics - Theory']
['talk, Osaka 2000/07/27', 'phi**n model, 4', 'symmetry, O(N)', 'symmetry breaking', 'space-time', 'topology', 'critical phenomena']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010041']
['Field theories compactified on non-simply connected spaces, which in general allow to impose twisted boundary conditions, are found to unexpectedly have a rich phase structure. One of characteristic features of such theories is the appearance of critical radii, at which some of symmetries are broken/restored. A phase...
['2000-10-09']
2,283
['eng']
['Matsuo, Y', 'Shibusa, Y']
['Volume Preserving Diffeomorphism and Noncommutative Branes']
['Particle Physics - Theory']
['membrane model, p-brane', 'membrane model, noncommutative', 'differential geometry, symplectic', 'transformation, diffeomorphism', 'field theory, action', 'charge, topological', 'quantization', 'operator, algebra']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010040']
['We give a representation of the volume preserving diffeomorphism of $\\bR^p$ in terms of the noncommutative (p-2)-branes whose kinetic term is described by the Hopf term. In the static gauge, the (p-2)-brane can be described by the free fields and it suggests that the quantization of the algebra is possible.']
['2000-10-09']
2,284
['eng']
['Kitsunezaki, N', 'Uehara, S']
['Large N Structure of IIB Matrix Model']
['Particle Physics - Theory']
['string model', 'supersymmetry', 'matrix model', 'algebra, U(N)', 'expansion 1/N', 'partition function', 'lattice, noncommutative']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010038']
['We study large N behavior of the IIB matrix model using the equivalence between the IIB matrix model for finite N and a field theory on a non-commutative periodic lattice with N x N sites. We find that the large N dependences of correlation functions can be obtained by naively counting the number of fields in the fie...
['2000-10-09']
2,285
['eng']
['Ito, H']
['Statistics of the Composite System']
['Particle Physics - Theory']
['field theory, nonlocal', 'bound state, (nucleus electron)', 'operator, composite', 'commutation relations']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010037']
['The space-like asymptotic limit of the bilocal composite field of the state consisting of a nucleus and an electron is studied. It is shown that the resulting local field of an atom satisfies the proper commutation relations in the sub-Fock-space of the atom.']
['2000-10-09']
2,286
['eng']
['Boer, J', 'Halpern, M B', 'Park, C']
['Construction of All WZW Orbifold Actions']
['Particle Physics - Theory']
['field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'orbifold', 'group theory, geometrical', 'group theory, representation', 'current algebra', 'duality, transformation', 'sigma model, nonlinear']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010036']
['In terms of group orbifold elements with definite monodromy, we give a construction for the action functionals of the twisted sectors of all WZW orbifolds. Surprisingly, locality of the theory dictates a form of the general twisted current algebra in which the twisted right and left mover current algebras are not a p...
['2000-10-09']
2,287
['eng']
['Buchbinder, I L', 'Gitman, D M', 'Shelepin, A L']
['Discrete symmetries as automorphisms of the proper Poincaré group']
['Particle Physics - Theory']
['group theory, Poincare', 'group theory, representation', 'symmetry, discrete', 'bibliography']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010035']
["We present the consistent approach to finding the discrete transformations in the representation spaces of the proper Poincar\\'e group. To this end we use the possibility to establish a correspondence between involutory automorphisms of the proper Poincar\\'e group and the discrete transformations. As a result, we d...
['2000-10-06']
2,288
['eng']
['Schnabl, M']
['String field theory at large B-field and noncommutative geometry']
['Particle Physics - Theory']
['field theory, string', 'background field', 'differential geometry, noncommutative', 'field equations, solution', 'K-theory', 'tachyon, potential']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010034']
["In the search for the exact minimum of the tachyon potential in the Witten's cubic string field theory we try to learn as much as possible from the string field theory in the large B-field background. We offer a simple alternative proof of the Witten's factorization, carry out the analysis of string field equations a...
['2000-10-06']
2,289
['eng']
['Andric, I', 'Jonke, L']
['Duality and quasiparticles in the Calogero-Sutherland model']
['Particle Physics - Theory']
['Calogero-Sutherland model', 'quasiparticle, hierarchy', 'duality', 'many-body problem', 'coherent state, SU(1,1)']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010033']
['The quantum-mechanical many-body system with the potential proportional to the pairwise inverse-square distance possesses a strong-weak coupling duality. Based on this duality, particle and/or quasiparticle states are described as SU(1,1) coherent states. The constructed quasiparticle states are of hierarchical natur...
['2000-10-06']
2,290
['eng']
['Trodden, M']
['Diluting Gravity with Compact Hyperboloids']
['Particle Physics - Theory']
['talk, Cheju Island 2000/09/04', 'gravitation', 'dimension, >4', 'Randall-Sundrum model', 'space-time']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010032']
['I give a brief informal introduction to the idea and tests of large extra dimensions, focusing on the case in which the space-time manifold has a direct product structure. I then describe some attractive implementations in which the internal space comprises a compact hyperbolic manifold. This construction yields an e...
['2000-10-06']
2,291
['eng']
['Reinhardt, H', 'Engelhardt, M']
['Center Vortices in Continuum Yang-Mills Theory']
['Particle Physics - Theory']
['talk, Vienna 2000/07/03', 'gauge field theory, SU(2)', 'lattice field theory', 'continuum limit', 'vortex', 'magnetic monopole', 'topology']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010031']
['The properties of center vortices are discussed within continuum Yang-Mills theory. By starting from the lattice theory and carefully performing the continuum limit the gauge potential of center vortices is obtained and the continuum analog of the maximal center gauge fixing is extracted. It is shown, that the Pontry...
['2000-10-06']
2,292
['eng']
['Ilieva, N P', 'Thirring, Walter Eduard']
['Laughlin type wave function for two-dimensional anyon fields in a KMS-state']
['Particle Physics - Theory']
['anyon', 'dimension, 2', 'correlation function', 'wave function', 'finite temperature', 'Hall effect, fractional']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010030']
['The correlation functions of two-dimensional anyon fields in a KMS-state are studied. The $n$-particle wave functions of noncanonical fermions of level $\\nu$, $\\nu$ odd, are shown to be of Laughlin type of order $\\nu$. For the first noncanonical Fermi class ($\\nu=3$) this is simply the finite-temperature generali...
['2000-10-06']
2,293
['eng']
['Dolgushev, V A', 'Lyakhovich, S L', 'Sharapov, A A']
['Wick Type Symbol and Deformed Algebra of Exterior Forms']
['Particle Physics - Theory']
['talk, Moscow 2000/06/05', 'quantization, deformation', 'operator, algebra', 'supersymmetry', 'differential forms', 'differential geometry, noncommutative']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010029']
['The covariant description is constructed for the Wick-type symbols on symplectic manifolds by means of the Fedosov procedure. The geometry of the manifolds admitting this symbol is explored. The superextended version of the Wick-type star-product is introduced and a possible application of the construction to the non...
['2000-10-06']
2,294
['eng']
['Lee, T']
['String Field Theory and Perturbative Dynamics of Noncommutative Field Theory']
['Particle Physics - Theory']
['field theory, string', 'membrane model, D-brane', 'field theory, tensor', 'differential geometry, noncommutative']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010027']
['The perturbative dynamics of noncommutative field theory (NCFT) is discussed from a point view of string field theory. As in the commutative case it is inevitable to introduce a closed string, which may be described as a bound state of two open strings. We point out that the closed string, interacting nontrivially wi...
['2000-10-06']
2,295
['eng']
['Hashimoto, K', 'Hirayama, T', 'Moriyama, S']
['Symmetry Origin of Nonlinear Monopole']
['Particle Physics - Theory']
['Born-Infeld model', 'field theory, tensor', 'soliton', 'monopole, BPS', 'monopole, nonlinear', 'field theory, transformation', 'supersymmetry', 'duality']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010026']
['We revisit the non-linear BPS equation: the Dirac monopole of the Born-Infeld theory in the B-field background. The rotation used in our previous papers to discuss the scalar field by transforming the BPS equation into a linear one is extended to the case of gauge field. We also find that this transformation is a sym...
['2000-10-06']
2,296
['eng']
['Liu, J T', 'Sabra, W A']
['Multi-centered black holes in gauged D=5 supergravity']
['Particle Physics - Theory']
['supergravity', 'dimension, 5', 'gauge field theory', 'multiplet, vector', 'membrane model, D-brane', 'black hole', 'time dependence', 'space-time, anti-de Sitter', 'spinor, Killing']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010025']
['One of the important consequences of the no-force condition for BPS states is the existence of stable static multi-center solutions, at least in ungauged supergravities. This observation has been at the heart of many developments in brane physics, including the construction of intersecting branes and reduced symmetry...
['2000-10-05']
2,297
['eng']
['Herat, A', 'Rademacher, R', 'Suranyi, P']
['Curved, extended classical solutions; 1, The undulating kink']
['Particle Physics - Theory']
['field theory, scalar', 'dimension, 2', 'dimension, 3', 'field equations, kink', 'energy', 'geometry']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010024']
['The energy of extended classical objects, such as vortices, depends on their shape. In particular, we show that the curvature energy of a kink in two spatial dimensions, as a prototype of extended classical solutions, is always negative. We obtain a closed form for the curvature energy, assuming small deviations from...
['2000-10-05']
2,298
['eng']
['Feng, B', 'Hanany, A', 'He, Y H', 'Prezas, N']
['Discrete Torsion, Non-Abelian Orbifolds and the Schur Multiplier']
['Particle Physics - Theory']
['group theory, SU(N)', 'group theory, representation', 'orbifold, nonabelian', 'torsion, discrete', 'membrane model, D-brane']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010023']
['Armed with the explicit computation of Schur Multipliers, we offer a classification of SU(n) orbifolds for n = 2,3,4 which permit the turning on of discrete torsion. This is in response to the host of activity lately in vogue on the application of discrete torsion to D-brane orbifold theories. As a by-product, we fin...
['2000-10-05']
2,299
['eng']
['Scrucca, Claudio A', 'Serone, M']
['A note on the torsion dependence of D-brane RR couplings']
['Particle Physics - Theory']
['membrane model, D-brane', 'supersymmetry, superspace', 'sigma model, nonlinear', 'torsion, dependence', 'Wess-Zumino term', 'anomaly']
['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010022']
['The dependence on the torsion H=db of the Wess-Zumino couplings of D-branes that are trivially embedded in space-time is studied. We show that even in this simple set-up some torsion components can be turned on, with a non-trivial effect on the RR couplings. In the special cases in which either the tangent or the nor...
['2000-10-05']