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 |
|---|---|---|---|---|---|---|---|---|
800 | ['eng'] | ['Lantsman, L D'] | ['The one example of Lorentz group'] | ['Particle Physics - Theory'] | ['group theory, Lorentz', 'charged particle, spinless', 'electric field, external field', 'particle, velocity', 'quantization, 2', 'gauge fixing', 'Hilbert space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104182'] | ['The aim of this work is to show, on the example of the behaviour of the spinless charged particle in the homogeneous electric field, that one can quantized the velocity of particle by the special gauge fixation. The work gives also the some information about the theory of second quantisation in the space of Hilbert- ... | ['2001-04-24'] |
801 | ['eng'] | ['Fischler, Willy', 'Kashani-Poor, A K', 'McNees, R', 'Paban, S'] | ['The Acceleration of the Universe, a Challenge for String Theory'] | ['Particle Physics - Theory'] | ['astrophysics, acceleration', 'string model', 'quintessence', 'astrophysics, fundamental constant', 'potential', 'asymptotic behavior', 'space-time', 'horizon'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104181'] | ['Recent astronomical observations indicate that the universe is accelerating. We argue that generic quintessence models that accomodate the present day acceleration tend to accelerate eternally. As a consequence the resulting spacetimes exhibit event horizons. Hence, quintessence poses the same problems for string the... | ['2001-04-24'] |
802 | ['eng'] | ['Hellerman, S', 'Kaloper, N', 'Susskind, Leonard'] | ['String Theory and Quintessence'] | ['Particle Physics - Theory'] | ['string model', 'quintessence', 'supersymmetry', 'vacuum state', 'S-matrix', 'space-time, de Sitter', 'space-time, Robertson-Walker', 'space-time, Schwarzschild', 'causality', 'astrophysics, acceleration', 'horizon'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104180'] | ['We discuss the obstacles for defining a set of observable quantities analogous to an S-matrix which are needed to formulate string theory in an accelerating universe. We show that the quintessence models with the equations of state $-1 < w <-1/3$ have future horizons and may be no better suited to an S-matrix or S-ve... | ['2001-04-24'] |
803 | ['eng'] | ['Cheng, H C', 'Hill, Christopher T', 'Pokorski, S', 'Wang, J'] | ['The Standard Model in the Latticized Bulk'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(3) x SU(2) x U(1)', 'dimension, 5', 'dimension, 4', 'effective Lagrangian', 'membrane model', 'electroweak interaction, symmetry breaking', 'Higgs particle', 'fermion, chiral'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104179'] | ['We construct the manifestly gauge invariant effective Lagrangian in 3+1 dimensions describing the Standard Model in 4+1 dimensions, following the transverse lattice technique. We incorporate split generation fermions and we explore naturalness for two Higgs configurations: a universal Higgs VEV, common to each transv... | ['2001-04-23'] |
804 | ['eng'] | ['Fedoruk, S O', 'Zima, V G'] | ['Uniform Twistor-Like Formulation of Massive and Massless Superparticles with Tensorial Central Charges'] | ['Particle Physics - Theory'] | ['talk, Kharkov 2000/07/25', 'superparticle', 'central charge, tensor', 'twistor', 'supersymmetry', 'kappa symmetry', 'constraint'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104178'] | ['We construct the manifestly Lorentz-invariant twistorial formulation of N=1 D=4 superparticle with tensorial central charges which describes massive and massless cases in a uniform manner. The tensorial central charges are realized in terms of even spinor variables and central charge coordinates. The full analysis of... | ['2001-04-23'] |
805 | ['eng'] | ['Kanti, P', 'Madden, R', 'Olive, K A'] | ['A 6-D Brane World Model'] | ['Particle Physics - Theory'] | ['space-time', 'dimension, 6', 'membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 4', 'Randall-Sundrum model', 'field equations, solution', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104177'] | ['We consider a 6D space-time which is periodic in one of the extra dimensions and compact in the other. The periodic direction is defined by two 4-brane boundaries. Both static and non-static exact solutions, in which the internal spacetime has constant radius of curvature, are derived. In the case of static solutions... | ['2001-04-23'] |
806 | ['eng'] | ['Terashima, S', 'Uesugi, T'] | ['On the Supersymmetry of Non-BPS D-brane'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'boundary condition', 'field theory, string', 'supersymmetry, nonlinear', 'supersymmetry, transformation', 'field theory, action', 'effective action'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104176'] | ['In this paper we extend the boundary string field theory action for a non-BPS D-brane to the one including the target space fermions and the nonlinear supersymmetry with 32 supercharges up to some order. This is based on the idea that the vacuum with a non-BPS D-brane belongs to the spontaneously broken phase of the ... | ['2001-04-23'] |
807 | ['eng'] | ['Mignemi, S'] | ['Black holes and conformal mechanics'] | ['Particle Physics - Theory'] | ['black hole, Reissner-Nordstroem', 'mechanics, conformal', 'charged particle', 'space-time, anti-de Sitter'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104175'] | ['We show how the motion of a charged particle near the horizon of an extreme Reissner-Nordstrom black hole can lead to different forms of conformal mechanics, depending on the choice of the time coordinate.'] | ['2001-04-23'] |
808 | ['eng'] | ['Singh, P', 'Dadhich, N K'] | ['Non-conformally flat bulk spacetime and the 3-brane world'] | ['Particle Physics - Theory'] | ['space-time', 'membrane model', 'graviton, bound state'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104174'] | ['We show that for non-conformally flat bulk spacetime, there exist no bound modes for zero mass graviton on the 3-brane. The brane world model is therefore unstable for the bulk spacetime being different from the conformally flat anti - de Sitter space.'] | ['2001-04-23'] |
809 | ['eng'] | ['Loaiza-Brito, O', 'Uranga, A M'] | ['The fate of the type I non-BPS D7-brane'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 7', 'p-brane, 9', 'fibre bundle', 'K-theory', 'stability', 'cohomology', 'M-theory', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104173'] | ['We describe the fate of the Type I non-BPS D7-brane, which is tachyonic but carries a non-trivial K-theory $\\IZ_2$ charge. It decays to topologically non-trivial gauge field configurations on the background D9-branes. In the uncompactified theory the decay proceeds to infinity, while with a transverse torus the deca... | ['2001-04-23'] |
810 | ['eng'] | ['Gustavsson, A', 'Henningson, M'] | ['A short representation of the six-dimensional (2, 0) algebra'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'algebra, representation', 'central charge', 'dimension, 6', 'dimension, 5', 'supersymmetry', 'string model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104172'] | ["We construct a BPS-saturated representation of the six-dimensional (2, 0) algebra with a certain non-zero value of the `central' charge. This representation is naturally carried by strings with internal degrees of freedom rather than by point particles. Upon compactification on a circle, it reduces to a massive vecto... | ['2001-04-23'] |
811 | ['eng'] | ['Goldberger, W D', 'Wise, M B'] | ['Renormalization Group Flows for Brane Couplings'] | ['Particle Physics - Theory'] | ['space-time', 'dimension, 6', 'field theory, scalar', 'membrane model', 'renormalization group, transformation', 'perturbation theory, higher-order'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104170'] | ['Field theories in the presence of branes encounter localized divergences that renormalize brane couplings. The sources of these brane-localized divergences are understood as arising either from broken translation invariance, or from short distance singularities as the brane thickness vanishes. While the former are ge... | ['2001-04-20'] |
812 | ['eng'] | ['Barbón, José L F', 'Rabinovici, E'] | ['On the Nature of the Hagedorn Transition in NCOS Systems'] | ['Particle Physics - Theory'] | ['string model', 'thermodynamics', 'transition, Hagedorn', 'bound state, ionization', 'critical phenomena', 'supergravity', 'membrane model', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104169'] | ['We extend the study of the nature of the Hagedorn transition in NCOS systems in various dimensions. The canonical analysis results in a microscopic ionization picture of a bound state system in which the Hagedorn transition is postponed till irrelevancy. A microcanonical analysis leads to a limiting Hagedorn behaviou... | ['2001-04-20'] |
813 | ['eng'] | ['Mateos, T', 'Moreno, A J D'] | ['A Note on Unitarity of Non-Relativistic Non-Commutative Theories'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'field theory, noncommutative', 'nonrelativistic', 'unitarity', 'background, electric', 'background, magnetic', 'n-point function', 'two-point function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104167'] | ['We analyze the unitarity of a non-relativistic non-commutative scalar field theory. We show that electric backgrounds spoil unitarity while magnetic ones do not. Furthermore, unlike its relativistic counterparts, unitarity can not be restored (at least at the level of one-to-one scattering amplitude) by adding new st... | ['2001-04-20'] |
814 | ['eng'] | ['Kao, W F'] | ['Bianchi type I space and the stability of inflationary Friedmann-Robertson-Walker space'] | ['Particle Physics - Theory'] | ['space-time, Bianchi', 'space-time, Robertson-Walker', 'inflationary universe', 'stability', 'Friedman model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104166'] | ['Stability analysis of the Bianchi type I universe in pure gravity theory is studied in details.We first derive the non-redundant field equation of the system by introducing the generalized Bianchi type I metric. This non-redundant equation reduces to the Friedmann equation in the isotropic limit. It is shown further ... | ['2001-04-20'] |
815 | ['eng'] | ['Osipov, A A', 'Hiller, B'] | ['Generalized Proper-Time Expansion of the Effective Action'] | ['Particle Physics - Theory'] | ['effective action, expansion', 'fermion, determinant', 'heat kernel', 'symmetry, SU(2) x SU(2)', 'asymptotic expansion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104165'] | ['A method is described for the development of the effective-action expansion to one loop. The method is based on the nontrivial generalization of the Schwinger-DeWitt proper-time technique to the case in which the one loop diagrams involve particles with different masses. The new expansion can be cast in a form which ... | ['2001-04-20'] |
816 | ['eng'] | ['Alishahiha, M'] | ['One-loop Correction of the Tachyon Action in Boundary Superstring Field Theory'] | ['Particle Physics - Theory'] | ['field theory, string', 'supersymmetry', 'tachyon', 'correction, higher-order', 'higher-order, 1', 'partition function', 'propagator', 'boundary condition'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104164'] | ['We compute one-loop correction to the string field theory action of the tachyon for unstable D-branes in the framework of the boundary superstring field theory. We would expect that the one-loop correction comes from the partition function of the two-dimensional world-sheet theory on the annulus. Although in this lev... | ['2001-04-20'] |
817 | ['eng'] | ['Iofa, M Z'] | ['N=2 Supersymmetry and String-Loop Corrected Magnetic Black Holes'] | ['Particle Physics - Theory'] | ['supersymmetry', 'black hole, magnetic', 'string model', 'dimension, 6', 'dimension, 4', 'field equations, solution', 'prepotential', 'potential, Kaehler', 'spinor, Killing', 'Maxwell equation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104163'] | ['We study string-loop corrections to magnetic black hole. 4D effective action is obtained by compactification of the heterotic string on the manifold K3\\times T^2 or on a suitable orbifold yielding N=1 supersymmetry in 6D. The resulting 4D theory has N=2 local supersymmetry. Prepotential of the resulting theory (in s... | ['2001-04-20'] |
818 | ['eng'] | ['Iorio, A', 'Lambiase, G', 'Vitiello, G'] | ['Quantization of Scalar Fields in Curved Background and Quantum Algebras'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'quantization', 'space-time, Minkowski', 'space-time, Schwarzschild', 'space-time, Rindler', 'algebra, deformation', 'quantum algebra', 'Hamiltonian formalism', 'Hilbert space', 'algebra, Poincare', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104162'] | ['We show that a suitable deformation of the algebra $h_k(1)$ of the creation and annihilation operators for a complex scalar field, initially quantized in Minkowski space--time, induces the canonical quantization of the same field in a generic gravitational background. This discloses the physical meaning of the deform... | ['2001-04-20'] |
819 | ['eng'] | ['Brihaye, Y', 'Piette, B M A G'] | ['Gravitating monopoles in SU(3) gauge theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(3)', 'gauge field theory, SU(2)', 'Einstein equation', 'Higgs model', 'symmetry, rotational', 'magnetic monopole'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104161'] | ['We consider the Einstein-Yang-Mills-Higgs equations for an SU(3) gauge group in a spherically symmetric ansatz. Several properties of the gravitating monopole solutions are obtained an compared with their SU(2) counterpart.'] | ['2001-04-20'] |
820 | ['eng'] | ['Setare, M R', 'Mansouri, R'] | ['Casimir stress on parallel plates in de Sitter space'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'massless', 'boundary condition', 'effect, Casimir', 'space-time, de Sitter', 'domain wall', 'tensor, energy-momentum'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104160'] | ['The Casimir stress on two parallel plates in de Sitter background for massless scalar field satisfying Robin boundary conditions on the plates is calculated. The metric is written in conformally flat form to make maximum use of the Minkowski space calculations. Different cosmological constants are assumed for the spa... | ['2001-04-20'] |
821 | ['eng'] | ['Kim, N J', 'Lee, H W', 'Myung, Y S', 'Kang, G'] | ['Holographic principle in the BDL brane cosmology'] | ['Particle Physics - Theory'] | ['membrane model', 'holography', 'black hole, Schwarzschild', 'space-time, anti-de Sitter', 'field theory, conformal', 'domain wall', 'energy, density', 'dimension, 5'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104159'] | ['We study the holographic principle in the brane cosmology. Especially we describe how to accommodate the 5D anti de Sitter Schwarzschild (AdSS$_5$) black hole in the Binetruy-Deffayet-Langlois (BDL) approach of brane cosmology. It is easy to make a connection between a mass $M$ of the AdSS$_5$ black hole and a confor... | ['2001-04-20'] |
822 | ['eng'] | ['Teschner, J'] | ['Liouville theory revisited'] | ['Particle Physics - Theory'] | ['field theory, Liouville', 'field theory, conformal', 'algebra, Virasoro', 'algebra, representation', 'quantization', 'zero mode', 'vertex function', 'path integral', 'symmetry, crossing', 'analytic properties', 'operator', 'bootstrap, chiral', 'operator, vertex', 'algebra, fusion', 'braid group', 'quantum group', 'bi... | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104158'] | ['We try to develop a coherent picture on Liouville theory as a two-dimensional conformal field theory that takes into account the perspectives of path-integral approach, bootstrap, canonical quantization and operator approach. To do this, we need to develop further some of these approaches. This includes in particular... | ['2001-04-19'] |
823 | ['eng'] | ['Lópes-Cardoso, G', "Dall'Agata, G", 'Lüst, Dieter'] | ['de Sitter BPS domain wall solutions in four- and five-dimensional gauged supergravity'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'supergravity', 'multiplet, vector', 'dimension, 4', 'dimension, 5', 'domain wall, BPS', 'attractor', 'field theory, scalar', 'astrophysics, fundamental constant', 'space-time, de Sitter'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104156'] | ['We construct supersymmetric de Sitter domain wall solutions in four- and five-dimensional N=2 gauged supergravity coupled to vector multiplets, where the gauge group is a U(1) subgroup of the R-symmetry. We show that this is achieved by a modification of the so-called attractor equations, which govern the behaviour o... | ['2001-04-19'] |
824 | ['eng'] | ['Andrianopoli, Laura', "D'Auria, R", 'Vaulà, S'] | ['Matter Coupled F(4) Gauged Supergravity Lagrangian'] | ['Particle Physics - Theory'] | ['supergravity', 'dimension, 6', 'group theory, F(4)', 'supersymmetry, algebra', 'supersymmetry, multiplet', 'gauge field theory', 'field theory, action', 'matter, coupling', 'Bianchi identity', 'potential, scalar', 'field theory, conformal', 'space-time, anti-de Sitter'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104155'] | ['We construct the so far unknown Lagrangian of D=6, N=2 F(4) Supergravity coupled to an arbitrary number of vector multiplets whose scalars span the coset manifold SO(4,n)/{SO(4) x SO(n)}. This is done first in the ungauged case and then extended to the compact gauging of SU(2) x G, where SU(2) is the R-symmetry diago... | ['2001-04-19'] |
825 | ['eng'] | ['Jurco, B', 'Möller, L', 'Schraml, S', 'Schupp, P', 'Wess, J'] | ['Construction of non-Abelian gauge theories on noncommutative spaces'] | ['Particle Physics - Theory'] | ['gauge field theory, nonabelian', 'space, noncommutative', 'gauge field theory, action', 'expansion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104153'] | ['We present a formalism to explicitly construct non-Abelian gauge theories on noncommutative spaces (induced via a star product with aconstant Poisson tensor) from a consistency relation. This results in an expansion of the gauge parameter, the noncommutative gauge potential and fields in the fundamental representatio... | ['2001-04-19'] |
826 | ['eng'] | ['Anacleto, M A', 'Ilha, A', 'Nascimento, J R S', 'Ribeiro, R F', 'Wotzasek, C'] | ['Dual equivalence between Self-Dual and Maxwell-Chern-Simons models coupled to dynamical U(1) charged matter'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Chern-Simons term', 'charged particle, coupling', 'duality', 'current, interaction', 'invariance, gauge', 'interaction, magnetic'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104152'] | ['We study the equivalence between the self-dual and the Maxwell-Chern-Simons (MCS) models coupled to dynamical, U(1) charged matter, both fermionic and bosonic. This is done through an iterative procedure of gauge embedding that produces the dual mapping of the self-dual vector field theory into a Maxwell-Chern-Simons... | ['2001-04-19'] |
827 | ['eng'] | ['Kim, J E', 'Kyae, B', 'Lee, H M'] | ['Localized gravity and mass hierarchy in D=6 with Gauss-Bonnet term'] | ['Particle Physics - Theory'] | ['membrane model, p-brane', 'dimension, 6', 'p-brane, 4', 'p-brane, 3', 'gravitation', 'mass spectrum, hierarchy', 'orbifold', 'Kaluza-Klein model', 'perturbation theory', 'Gauss-Bonnet term'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104150'] | ['We obtain the localized gravity on the intersection of two orthogonal non-solitonic or solitonic 4-branes in D=6 in the presence of the Gauss-Bonnet term. The tension of the intersection is allowed to exist unlike the case without the Gauss-Bonnet term. We show that gravity could be confined to the solitonic 4-branes... | ['2001-04-19'] |
828 | ['eng'] | ['Naón, C M', 'Salvay, M J'] | ['On a CFT prediction in the sine-Gordon model'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'sine-Gordon model', 'dimension, 2', 'propagator', 'bosonization', 'Thirring model, massive'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104148'] | ['A quantitative prediction of Conformal Field Theory (CFT), which relates the second moment of the energy-density correlator away from criticality to the value of the central charge, is verified in the sine-Gordon model. By exploiting the boson-fermion duality of two-dimensional field theories, this result also allows... | ['2001-04-18'] |
829 | ['eng'] | ['Aspinwall, Paul S', 'Lawrence, A'] | ['Derived Categories and Zero-Brane Stability'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'field theory, topological', 'fibre bundle', 'cohomology, Becchi-Rouet-Stora', 'field theory, deformation', 'tachyon, condensation', 'stability', 'category', 'monodromy', 'sigma model, linear', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104147'] | ['We define a particular class of topological field theories associated to open strings and prove the resulting D-branes and open strings form the bounded derived category of coherent sheaves. This derivation is a variant of some ideas proposed recently by Douglas. We then argue that any 0-brane on any Calabi-Yau three... | ['2001-04-18'] |
830 | ['eng'] | ['Fotopoulos, A'] | ["On $(\\alpha')^2$ corrections to the D-brane action for non-geodesic world-volume embeddings"] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'field theory, action', 'correction, derivative', 'effective action', 'Born-Infeld model', 'graviton, scattering amplitude', 'perturbation theory, higher-order'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104146'] | ["In hep-th/9903210 (curvature)$^2$ terms of the effective D-brane action were derived to lowest order in the string coupling. The results of hep-th/9903210 are correct up to ambiguous terms which involve the second fundamental form of the D-brane. We compute five point string amplitudes on the disk. We compare the sub... | ['2001-04-18'] |
831 | ['eng'] | ['Sandoval, L A'] | ['Sewing string tree vertices using canonical forms'] | ['Particle Physics - Theory'] | ['string model, boson', 'quantization, 1', 'oscillator', 'coherent state', 'ghost', 'vertex, composite'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104145'] | ['We effectively sew two vertices with ghosts in order to obtain a third, composite vertex in the most general case of cycling transformations. In order to do this, we separate the vertices into two parts: a bosonic oscillator part and a ghost oscillator part and write them as canonical forms.'] | ['2001-04-18'] |
832 | ['eng'] | ['Kajiura, H', 'Matsuo, Y', 'Takayanagi, T'] | ['Exact Tachyon Condensation on Nocommutative Torus'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'bound state', 'soliton, BPS', 'differential geometry, noncommutative', 'tachyon, condensation', 'torus', 'Morita equivalence', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104143'] | ['We construct exact noncommutative solutions on tori. This gives an exact description of tachyon condensation on bosonic D-branes, non-BPS D-branes and brane-antibrane systems. We obtain various bound states of D-branes after the tachyon condensation. Our results show that these solutions can be generated by applying ... | ['2001-04-18'] |
833 | ['eng'] | ['Klemm, D', 'Petkou, Anastasios C', 'Siopsis, G', 'Zanon, D'] | ['Universality and a generalized C-function in CFTs with AdS Duals'] | ['Particle Physics - Theory'] | ['supergravity', 'gauge field theory', 'entropy', 'soliton, BPS', 'fluctuation', 'energy levels', 'space-time, anti-de Sitter', 'field theory, conformal', 'duality', 'renormalization group, c-function', 'mass spectrum', 'universality', 'asymptotic behavior', 'finite temperature', 'black hole'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104141'] | ['We argue that the thermodynamics of conformal field theories with AdS duals exhibits a remarkable universality. At strong coupling, a Cardy-Verlinde entropy formula holds even when R-charges or bulk supergravity scalars are turned on. In such a setting, the Casimir entropy can be identified with a generalized C-funct... | ['2001-04-18'] |
834 | ['eng'] | ['Guo, H Y', 'Li, Y Q', 'Wu, K', 'Wang, S K'] | ['Symplectic, Multisymplectic Structures and Euler-Lagrange Cohomology'] | ['Particle Physics - Theory'] | ['field theory, classical', 'Lagrangian formalism', 'Hamiltonian formalism', 'differential forms, symplectic', 'cohomology'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104140'] | ['We study the Euler-Lagrange cohomology and explore the symplectic or multisymplectic geometry and their preserving properties in classical mechanism and classical field theory in Lagrangian and Hamiltonian formalism in each case respectively. By virtue of the Euler-Lagrange cohomology that is nontrivial in the config... | ['2001-04-18'] |
835 | ['eng'] | ['Liu, H', 'Michelson, J'] | ['Ramond-Ramond Couplings of Noncommutative D-branes'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'field theory, action', 'Wess-Zumino term', 'potential', 'charge, topological', 'Wilson loop', 'Seiberg-Witten model', 'differential geometry, noncommutative', 'effect, dielectric'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104139'] | ["We propose the leading couplings, in an alpha' expansion, of noncommutative D-branes to RR potentials in a constant NSNS B-field for an arbitrary choice of noncommutative parameter. The proposal is motivated by some string amplitude computations. The zero momentum couplings are topological in nature and include Ellio... | ['2001-04-18'] |
836 | ['eng'] | ['Alfaro, J', 'Labraña, P'] | ['Semiclassical Gauge Theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'approximation, quasiclassical', 'renormalization group, beta function', 'perturbation theory, higher-order'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104137'] | ['We study the properties of a non-abelian gauge theory subject to a gauge invariant constraint given by the classical equations of motion. The constraint is not impossed by hand, but appears naturally when we study a particular type of local gauge transformations. In this way, all standard techniques to treat gauge th... | ['2001-04-17'] |
837 | ['eng'] | ['Bars, I', 'Rey, S J'] | ['Noncommutative Sp(2,R) Gauge Theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Sp(2,R)', 'space-time, signature', 'differential geometry, noncommutative', 'phase space', 'field theory, action', 'field equations', 'time, 2'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104135'] | ["Phase-space and its relativistic extension is a natural space for realizing Sp(2,R) symmetry through canonical transformations. On a Dx2 dimensional covariant phase-space, we formulate noncommutative field theories, where Sp(2,R) plays a role as either a global or a gauge symmetry group. In both cases these field the... | ['2001-04-17'] |
838 | ['eng'] | ['Li, T'] | ['Spontaneous Physical Compactification of the Extra Dimensions'] | ['Particle Physics - Theory'] | ['space-time', 'membrane model', 'dimension, >4', 'spontaneous compactification', 'finite temperature, high', 'symmetry breaking'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104134'] | ['We conjecture that the extra dimensions are physical non-compact at high energy scale or high temperature; after the symmetry breaking or cosmological phase transition, the bulk cosmological constant may become negative, and then, the extra dimensions may become physical compact at low energy scale. We show this in a... | ['2001-04-17'] |
839 | ['eng'] | ['Landsteiner, K', 'López, E', 'Tytgat, M H G'] | ['Instability of Non-Commutative SYM Theories at Finite Temperature'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'supersymmetry', 'finite temperature', 'differential geometry, noncommutative', 'stability', 'fermion, dispersion relations', 'propagator', 'perturbation theory, higher-order', 'tachyon', 'critical phenomena', 'quasiparticle, velocity', 'hard thermal loop approximation', 'numerical calculat... | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104133'] | ['We extend our previous work on the quasi-particle excitations in N=4 non-commutative U(1) Yang-Mills theory at finite temperature. We show that above some critical temperature there is a tachyon in the spectrum of excitations. It is a collective transverse photon mode polarized in the non-commutative plane. Thus the ... | ['2001-04-17'] |
840 | ['eng'] | ['Chalmers, G'] | ['M-theory and automorphic scattering'] | ['Particle Physics - Theory'] | ['M-theory', 'graviton, scattering', 'S-matrix', 'approximation, strong coupling', 'duality', 'dimension, 11', 'analytic properties'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104132'] | ['The strongly coupled limit of string scattering and the automorphic construction of the graviton S-matrix is compared with the eleven dimensional formulation of M-theory. In a particular scaling limit at strong string coupling, M-theory is described by eleven-dimensional supergravity which does not possess a dilaton,... | ['2001-04-17'] |
841 | ['eng'] | ['Schmidhuber, C'] | ['Brane Supersymmetry Breaking and the Cosmological Constant'] | ['Particle Physics - Theory'] | ['membrane model', 'supersymmetry, symmetry breaking', 'astrophysics, fundamental constant', 'gravitation, fundamental constant', 'supergravity', 'space-time, higher-dimensional', 'Kaluza-Klein model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104131'] | ["It has recently been argued that non--BPS brane world scenarios can reproduce the small value of the cosmological constant that seems to have been measured. Objections against this proposal are discussed and necessary (but not sufficient) conditions are stated under which it may work. At least n=2 extra dimensions ar... | ['2001-04-17'] |
842 | ['eng'] | ['Fujita, T', 'Ohashi, K'] | ['Superconformal Tensor Calculus in Five Dimensions'] | ['Particle Physics - Theory'] | ['tensor', 'transformation, conformal', 'supersymmetry', 'multiplet, Weyl', 'dimension, 6', 'dimension, 5', 'supergravity', 'multiplet, embedding'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104130'] | ['We present a full superconformal tensor calculus in five spacetime dimensions in which the Weyl multiplet has 32 Bose plus 32 Fermi degrees of freedom. It is derived by the dimensional reduction from the 6D superconformal tensor calculus. We present two types of 32+32 Weyl multiplets, vector multiplet, linear multipl... | ['2001-04-17'] |
843 | ['eng'] | ['Evans, T S'] | ['Vacuum Energy Densities and Multiplicative Anomalies in a Free Bose Gas'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'boson, gas', 'path integral', 'density, finite', 'vacuum state, energy', 'finite temperature', 'anomaly', 'regularization, zeta function', 'regularization, dimensional'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104128'] | ['The vacuum energy density or free energy of a free charged Bose gas at non-zero densities is studied in the context of the debate about Multiplicative Anomalies. Some zeta-function regularised calculations of the free energy in the literature are reexamined, clarified and extended. A range of apparently distinct answ... | ['2001-04-17'] |
844 | ['eng'] | ['Govindarajan, S', 'Jayaraman, T'] | ['Boundary Fermions, Coherent Sheaves and D-branes on Calabi-Yau manifolds'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'sigma model, nonlinear', 'gauge field theory', 'supersymmetry', 'boundary condition', 'space, Calabi-Yau', 'fibre bundle', 'moduli space', 'monodromy', 'bound state'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104126'] | ['We construct boundary conditions in the gauged linear sigma model for B-type D-branes on Calabi-Yau manifolds that correspond to coherent sheaves given by the cohomology of a monad. This necessarily involves the introduction of boundary fields, and in particular, boundary fermions. The large-volume monodromy for thes... | ['2001-04-17'] |
845 | ['eng'] | ['Rangamani, M'] | ['Little String Thermodynamics'] | ['Particle Physics - Theory'] | ['string model', 'membrane model, p-brane', 'p-brane, 5', 'finite temperature', 'duality', 'stability', 'supergravity', 'thermodynamics', 'holography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104125'] | ['We argue that the holographic dual to little string theories at finite temperature suffers from a Gregory-Laflamme like instability, providing an alternative explanation to the results of hep-th/0012258.'] | ['2001-04-16'] |
846 | ['eng'] | ['Kaste, P', 'Kehagias, A A', 'Partouche, H'] | ['Phases of supersymmetric gauge theories from M-theory on G_2 manifolds'] | ['Particle Physics - Theory'] | ['M-theory', 'group theory, G(2)', 'group theory, geometrical', 'group theory, representation', 'supersymmetry', 'gauge field theory, SU(2) x SU(2)', 'orbifold', 'holonomy', 'moduli space', 'particle, multiplet', 'geometry, algebra', 'critical phenomena'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104124'] | ['We consider M-theory on compact spaces of G_2 holonomy constructed as orbifolds of the form (CY x S^1)/Z_2 with fixed point set \\Sigma on the CY. This describes N=1 SU(2) x SU(2) gauge theories with b_1(\\Sigma) chiral multiplets in the adjoint. For b_1=0, it generalizes to compact manifolds the study of the phase t... | ['2001-04-16'] |
847 | ['eng'] | ['Kummer, Wolfgang'] | ['On the Gauge-Independence of the S-Matrix'] | ['Particle Physics - Theory'] | ['path integral', 'n-point function', 'dependence, gauge', 'ghost', 'S-matrix'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104123'] | ["The S-matrix is invariant with respect to the variation of any (global) parameter involved in the gauge fixing conditions, if that variation is accompanied by a certain redefinition of the basis of polarization vectors. Renormalizability of the underlying gauge theory is not required. The proof is nonperturbative and... | ['2001-04-16'] |
848 | ['eng'] | ['Singh-Modgil, M', 'Panda, S', 'Sen-Gupta, G'] | ['Rotating Brane World Black Holes'] | ['Particle Physics - Theory'] | ['membrane model', 'black hole, Kerr', 'black hole, rotator', 'dimension, 5', 'dimension, 4', 'Randall-Sundrum model', 'space-time, anti-de Sitter'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104122'] | ['A five dimensional rotating black string in a Randall-Sundrum brane world is considered. The black string intercepts the three brane in a four dimensional rotating black hole. The geodesic equations and the asymptotics in this background are discussed.'] | ['2001-04-13'] |
849 | ['eng'] | ['Dorey, P', 'Dunning, C', 'Tateo, R'] | ['Supersymmetry and the spontaneous breakdown of PT symmetry'] | ['Particle Physics - Theory'] | ['supersymmetry, symmetry breaking', 'parity', 'time reversal', 'symmetry, spontaneously broken', 'quantum mechanics', 'energy levels, crossing', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104119'] | ['The appearances of complex eigenvalues in the spectra of PT-symmetric quantum-mechanical systems are usually associated with a spontaneous breaking of PT. In this letter we discuss a family of models for which this phenomenon is also linked with an explicit breaking of supersymmetry. Exact level-crossings are located... | ['2001-04-13'] |
850 | ['eng'] | ['Giovannini, M', 'Meyer, H', 'Shaposhnikov, M E'] | ['Warped compactification on Abelian vortex in six dimensions'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Higgs model, abelian', 'gravitation', 'vortex', 'dimension, 6', 'space-time', 'field equations, solution', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104118'] | ['We consider the possibility of localizing gravity on a Nielsen-Olesen vortex in the context of the Abelian Higgs model. The vortex lives in a six-dimensional space-time with negative bulk cosmological constant. In this model we find a region of the parameter space leading, simultaneously, to warped compactification a... | ['2001-04-13'] |
851 | ['eng'] | ['Belich, H', 'Monteiro del Cima, O', 'Helayël-Neto, José A'] | ['Electron-electron attractive interaction in Maxwell-Chern-Simons QED3 at zero temperature'] | ['Particle Physics - Theory'] | ['quantum electrodynamics, planar', 'dimension, 3', 'Chern-Simons term', 'Maxwell equation', 'bound state, (2electron)', 'symmetry breaking, U(1)', 'symmetry, spontaneously broken', 'electron electron, elastic scattering', 'electron electron, scattering amplitude', 'potential', 'Born approximation', 'Higgs particle, ex... | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104116'] | ['One discusses the issue of low-energy electron-electron bound states in the Maxwell-Chern-Simons model coupled to QED3 with spontaneous breaking of a local U(1)-symmetry. The scattering potential, in the non-relativistic limit, steaming from the electron-electron Moller scattering, mediated by the Maxwell-Chern-Simon... | ['2001-04-13'] |
852 | ['eng'] | ['Ilha, A', 'Wotzasek, C'] | ['Duality Equivalence Between Self-Dual And Topologically Massive Non-Abelian Models'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'field theory, vector', 'duality', 'nonabelian', 'field theory, action', 'fermion', 'path integral', 'bosonization', 'mass, topological', 'Chern-Simons term'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104115'] | ['The non-abelian version of the self-dual model proposed by Townsend, Pilch and van Nieuwenhuizen presents some well known difficulties not found in the abelian case, such as well defined duality operation leading to self-duality and dual equivalence with the Yang-Mills-Chern-Simons theory, for the full range of the c... | ['2001-04-13'] |
853 | ['eng'] | ['Zupnik, B M'] | ['N=4 Super-Yang-Mills Equations In Harmonic Superspace'] | ['Particle Physics - Theory'] | ['talk, Kharkov 2000/07/25', 'gauge field theory, Yang-Mills', 'supersymmetry', 'superspace, harmonic', 'group theory, SL(2,C)', 'group theory, SU(4)', 'coset space', 'light cone gauge'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104114'] | ['We analyze the superfield equations of the 4-dimensional N=4 SYM-theory using light-cone gauge conditions and the harmonic-superspace approach. The harmonic superfield equations of motion are drastically simplified in this gauge, in particular, the basic harmonic-superfield matrices and the corresponding harmonic ana... | ['2001-04-13'] |
854 | ['eng'] | ['Bergshoeff, E A', 'Cucu, S', 'Derix, M', 'De Wit, T', 'Halbersma, R', 'Van Proeyen, A'] | ['Weyl multiplets of N=2 conformal supergravity in five Dimensions'] | ['Particle Physics - Theory'] | ['supergravity, conformal', 'multiplet, Weyl', 'dimension, 5', 'transformation, nonlinear', 'dilaton'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104113'] | ['We construct the Weyl multiplets of N=2 conformal supergravity in five dimensions. We show that there exist two different versions of the Weyl multiplet, which contain the same gauge fields but differ in the matter field content: the Standard Weyl multiplet and the Dilaton Weyl multiplet. At the linearized level we o... | ['2001-04-13'] |
855 | ['eng'] | ['Grignani, G', 'Orselli, M', 'Semenoff, Gordon W'] | ['Matrix strings in a B-field'] | ['Particle Physics - Theory'] | ['matrix model', 'string model', 'quantization, light cone', 'discrete', 'temperature, Hagedorn', 'partition function', 'path integral', 'supersymmetry', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104112'] | ['We study the discrete light-cone quantization (DLCQ) of closed strings in the background of Minkowski space-time and a constant Neveu-Schwarz $B$-field. For the Bosonic string, we identify the $B$-dependent part of the thermodynamic free energy to all orders in string perturbation theory. For every genus, $B$ appears... | ['2001-04-13'] |
856 | ['eng'] | ['Fabinger, M'] | ['Virtual Reality in the World of Holograms'] | ['Particle Physics - Theory'] | ['astrophysics, model', 'inflationary universe', 'entropy', 'radiation, Hawking', 'chaos', 'quantum gravity', 'holography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104111'] | ["If we assume that the initial conditions for the universe were such that there was no volume-extensive entropy `at the beginning of time' (which is true in Linde's chaotic inflation), we can formulate a covariant holographic bound on the entanglement entropy inside or outside closed space-like surfaces. This bound sh... | ['2001-04-12'] |
857 | ['eng'] | ['Brandt, F', 'Kling, A', 'Kreuzer, M'] | ['Superstring BRST cohomology'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'space-time', 'field theory, action', 'Born-Infeld model', 'cohomology, Becchi-Rouet-Stora', 'transformation, conformal', 'antifield'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104110'] | ['We first derive all world-sheet action functionals for NSR superstring models with local (1,1) supersymmetry and any number of abelian gauge fields. The result includes the well-known superstring action in a general background, as well as locally supersymmetric D-string actions of Born-Infeld type. Then we prove for ... | ['2001-04-12'] |
858 | ['eng'] | ['Martinetti, P', 'Wulkenhaar, R'] | ['Discrete Kaluza-Klein from scalar fluctuations in noncommutative geometry'] | ['Particle Physics - Theory'] | ['field theory, space-time', 'geometry, noncommutative', 'Kaluza-Klein model, discrete', 'fluctuation, scalar', 'Higgs model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104108'] | ['We compute the metric associated to noncommutative spaces described by a tensor product of spectral triples. Well known results of the two-sheets model (distance on a sheet, distance between the sheets) are extended to any product of two spectral triples. The distance between different points on different fibres is i... | ['2001-04-12'] |
859 | ['eng'] | ['Harikumar, E', 'Sivakumar, M'] | ['Hamiltonian vs Lagrangian Embedding of a Massive Spin-one Theory Involving 2-form Field'] | ['Particle Physics - Theory'] | ['field theory, tensor', 'field theory, vector', 'spin, 1', 'field theory, action', 'field theory, massive', 'Hamiltonian formalism', 'Lagrangian formalism', 'transformation, Becchi-Rouet-Stora', 'partition function', 'phase space', 'differential forms'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104107'] | ['We consider the Hamiltonian and Lagrangian embedding of a first-order, massive spin-one, gauge non-invariant theory involving anti-symmetric tensor field. We apply the BFV-BRST generalised canonical approach to convert the model to a first class system and construct nil-potent BFV-BRST charge and an unitarising Hamil... | ['2001-04-12'] |
860 | ['eng'] | ['Sarkar, S', 'Sathiapalan, B'] | ['Comments on the renormalizability of the Broken Phase in Noncommutative Scalar Field Theory'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'differential geometry, noncommutative', 'symmetry, O(2)', 'path integral', 'Ward identity', 'symmetry, spontaneously broken', 'perturbation theory, higher-order', 'pi pi, scattering amplitude'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104106'] | ['We study the noncommutative $\\phi^4$ theory with spontaneously broken global O(2) symmetry in 4 dimensions. We demonstrate the renormalizability at one loop. This does not require any choice of ordering of the fields in the interaction terms. It involves regulating the ultraviolet and infrared divergences in a manne... | ['2001-04-12'] |
861 | ['eng'] | ['Gutowski, J B', 'Papadopoulos, G'] | ['Moduli Spaces and Brane Solitons for M-Theory Compactifications on Holonomy $G_2$ Manifolds'] | ['Particle Physics - Theory'] | ['M-theory', 'supersymmetry', 'spontaneous compactification', 'holonomy, G(2)', 'supergravity', 'dimension, 11', 'dimension, 4', 'membrane model, soliton', 'black hole', 'domain wall', 'moduli space', 'differential geometry, symplectic'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104105'] | ['We investigate the local geometry on the moduli space of $G_2$ structures that arises in compactifications of M-theory on holonomy $G_2$ manifolds. In particular, we determine the homogeneity properties of couplings of the associated N=1, D=4 supergravity under the scaling of moduli space coordinates. We then find so... | ['2001-04-12'] |
862 | ['eng'] | ['Nyawelo, T S', 'Van Holten, J W', 'Nibbelink, S G'] | ['Superhydrodynamics'] | ['Particle Physics - Theory'] | ['mechanics, fluid', 'relativistic', 'supersymmetry', 'effective Lagrangian', 'Hamiltonian formalism', 'field equations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104104'] | ['We present a covariant and supersymmetric theory of relativistic hydrodynamics in four-dimensional Minkowski space.'] | ['2001-04-12'] |
863 | ['eng'] | ['Easther, R', 'Greene, Brian R', 'Kinney, W H', 'Shiu, G'] | ['Inflation as a Probe of Short Distance Physics'] | ['Particle Physics - Theory'] | ['inflationary universe', 'relativity theory, general', 'string model', 'spectra, perturbation', 'space-time, de Sitter', 'particle, production', 'fundamental constant, length'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104102'] | ['We show that a string-inspired Planck scale modification of general relativity can have observable cosmological effects. Specifically, we present a complete analysis of the inflationary perturbation spectrum produced by a phenomenological Lagrangian that has a standard form on large scales but incorporates a string-i... | ['2001-04-12'] |
864 | ['eng'] | ['Chen, C M', 'Kao, W F'] | ['Stability Analysis of Anisotropic Inflationary Cosmology'] | ['Particle Physics - Theory'] | ['inflationary universe', 'space-time, de Sitter', 'anisotropy', 'stability', 'dilaton', 'axion', 'space-time, Bianchi', 'space-time, Robertson-Walker', 'string model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104101'] | ['The stability analysis of an anisotropic inflationary de Sitter universe of the four dimensional Neveu-Schwarz--Neveu-Schwarz string model is discussed in this paper. The accelerating expansion solution found earlier is shown to be stable against the perturbations with respect to the dilaton and axion fields once the... | ['2001-04-12'] |
865 | ['eng'] | ['Hellerman, S', 'McGreevy, J'] | ['Linear sigma model toolshed for D-brane physics'] | ['Particle Physics - Theory'] | ['sigma model, linear', 'membrane model, D-brane', 'supersymmetry', 'fibre bundle', 'space, Calabi-Yau', 'geometry, algebra', 'string model, heterotic'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104100'] | ['Building on earlier work, we construct linear sigma models for strings on curved spaces in the presence of branes. Our models include an extremely general class of brane-worldvolume gauge field configurations. We explain in an accessible manner the mathematical ideas which suggest appropriate worldsheet interactions ... | ['2001-04-11'] |
866 | ['eng'] | ['Viswanathan, K S', 'Yang, Y'] | ['Tachyon Condensation and Background Independent Superstring Field Theory'] | ['Particle Physics - Theory'] | ['field theory, string', 'supersymmetry', 'background field', 'tachyon, condensation', 'partition function', '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=0104099'] | ["We study quantum corrections at the one loop level in open superstring tachyon condensation using the boundary string field theory (BSFT) method. We find that the tachyon field action has the same form as at the disc level, but with a renormalized effective coupling $\\lambda' =g_s^{ren}e^{-T^2/4}$ ($g_s^{ren}$ is th... | ['2001-04-11'] |
867 | ['eng'] | ['Bazeia, D', 'Ilha, A', 'Nascimento, J R S', 'Ribeiro, R F', 'Wotzasek, C'] | ['On the dual equivalence of the Born-Infeld-Chern-Simons model coupled to dynamical U(1) charged matter'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Born-Infeld model', 'duality', 'effective Lagrangian', 'Chern-Simons term'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104098'] | ['We study the equivalence between a nonlinear self-dual model (NSD) with the Born-Infeld-Chern-Simons (BICS) models using an iterative gauge embedding procedure that produces the duality mapping, including the case where the NSD model is minimally coupled to dynamical, U(1) charged fermionic matter. The duality mappin... | ['2001-04-11'] |
868 | ['eng'] | ['Bichl, Andreas A', 'Grimstrup, J', 'Grosse, Harald', 'Popp, L', 'Schweda, Manfred', 'Wulkenhaar, R'] | ['Renormalization of QED on noncommutative R^4 to all orders via Seiberg-Witten map'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'differential geometry, noncommutative', 'field theory, deformation', 'fermion', 'Seiberg-Witten model', 'propagator', 'perturbation theory, higher-order', 'renormalization'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104097'] | ['We show that quantum electrodynamics on noncommutative R^4 is renormalizable to all orders (both in \\theta and \\hbar) when using the Seiberg-Witten map. This is due to the enormous freedom in the Seiberg-Witten map which generates all those gauge invariant terms in the \\theta-deformed classical action which are ne... | ['2001-04-11'] |
869 | ['eng'] | ['Klinkhamer, F R', 'Lee, Y J'] | ['Spectral flow of chiral fermions in nondissipative gauge field backgrounds'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'fermion, chiral', 'background field', 'Hamiltonian formalism', 'fermion, zero mode', 'spectral representation', 'energy', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104096'] | ["Real-time anomalous fermion number violation is investigated for massless chiral fermions in spherically symmetric SU(2) gauge field backgrounds which can be weakly dissipative or even nondissipative. Restricting to spherically symmetric fermion fields, the zero-eigenvalue equation of the time-dependent effective Dir... | ['2001-04-11'] |
870 | ['eng'] | ['Rangamani, M'] | ['Reverse Engineering ADHM Construction from Non-Commutative Instantons'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'field theory, scalar', 'dimension, 5', 'differential geometry, noncommutative', 'instanton', 'fluctuation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104095'] | ['We study the non-commutative instanton solution proposed in hep-th/0009142 and obtain the spectrum of small oscillations. The spectrum thus obtained is in exact agreement with the spectrum of stringy excitations in a configuration of point like D0 branes sitting on top of D4-branes with a uniform magnetic field turne... | ['2001-04-11'] |
871 | ['eng'] | ['Alexandrov, S Yu', 'Kazakov, V'] | ['Correlators in 2D string theory with vortex condensation'] | ['Particle Physics - Theory'] | ['matrix model', 'string model', 'partition function', 'dimension, 2', 'spontaneous compactification', 'vortex, condensation', 'correlation function', 'field equations, Toda', 'field equations, solution', 'differential equations, hierarchy'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104094'] | ['We calculate one- and two-point correlators of winding operators in the matrix model of 2D string theory compactified on a circle, recently proposed for the description of string dynamics on the 2D black hole background.'] | ['2001-04-11'] |
872 | ['eng'] | ['Alexander, S H S', 'Magueijo, J'] | ['Non-commutative geometry as a realization of varying speed of light cosmology'] | ['Particle Physics - Theory'] | ['photon, velocity', 'energy dependence', 'geometry, noncommutative', 'astrophysics, model', 'radiation', 'thermodynamics', 'dispersion relations, deformation', 'phonon, crystal', 'horizon', 'entropy', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104093'] | ['We examine the cosmological implications of space-time non-commutativity, discovering yet another realization of the varying speed of light model. Our starting point is the well-known fact that non-commutativity leads to deformed dispersion relations, relating energy and momentum, implying a frequency dependent speed... | ['2001-04-11'] |
873 | ['eng'] | ['Aratyn, H', 'De van Leur, J W'] | ['Solutions of the WDVV Equations and Integrable Hierarchies of KP type'] | ['Particle Physics - Theory'] | ['field theory, topological', 'differential equations, hierarchy', 'differential geometry', 'algebra, SL(N)', 'loop space', 'integrability', 'WDVV equation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104092'] | ["We show that reductions of KP hierarchies related to the loop algebra of $SL_n$ with homogeneous gradation give solutions of the Darboux-Egoroff system of PDE's. Using explicit dressing matrices of the Riemann-Hilbert problem generalized to include a set of commuting additional symmetries, we construct solutions of t... | ['2001-04-11'] |
874 | ['eng'] | ['Martín, C P'] | ['Computing noncommutative Chern-Simons theory radiative corrections on the back of an envelope'] | ['Particle Physics - Theory'] | ['gauge field theory, U(N)', 'Chern-Simons term', 'dimension, 3', 'differential geometry, noncommutative', 'perturbation theory, higher-order', 'dependence, gauge', 'regularization', 'radiative correction', 'propagator'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104091'] | ['We show that the renormalized U(N) noncommutative Chern-Simons theory can be defined in perturbation theory so that there are no loop corrections to the 1PI functional of the theory in an arbitrary homogeneous axial (time-like, light-like or space-like) gauge. We define the free propagators of the fields of the theor... | ['2001-04-11'] |
875 | ['eng'] | ['Krajewski, T', 'Schnabl, M'] | ['Exact solitons on noncommutative tori'] | ['Particle Physics - Theory'] | ['field theory, string', 'string, open', 'soliton', 'field theory, torus', 'differential geometry, noncommutative', 'field equations, solution', 'topology', 'tachyon'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104090'] | ['We construct exact solitons on noncommutative tori for the type of actions arising from open string field theory. Given any projector that describes an extremum of the tachyon potential, we interpret the remaining gauge degrees of freedom as a gauge theory on the projective module determined by the tachyon. Whenever ... | ['2001-04-11'] |
876 | ['eng'] | ['Kamani, D'] | ['General Target Space Duality and Its Effects on D-branes'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'string model', 'supersymmetry', 'boundary condition', 'T-duality', 'operator, Virasoro', 'charge, Becchi-Rouet-Stora', 'operator, algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104089'] | ['We study a special combination of the compact directions of the spacetime (compactified on tori) and the worldsheet parity transformed of these directions. The transformations that change the compact part of the spacetime to this combination, are more general than the T-duality transformations. Many properties of thi... | ['2001-04-11'] |
877 | ['eng'] | ['Donev, S'] | ['Screw Photon-Like (3+1)-Solitons in Extended Electrodynamics'] | ['Particle Physics - Theory'] | ['soliton', 'electromagnetic field', 'photon', 'spin, momentum'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104088'] | ["This paper aims to present explicit photon-like (3+1) spatially finite soliton solutions of screw type to the vacuum field equations of Extended Electrodynamics (EED) in relativistic formulation. We begin with emphasizing the need for spatially finite soliton modelling of microobjects. Then we briefly comment the pro... | ['2001-04-11'] |
878 | ['eng'] | ['Harikumar, E', 'Khare, A', 'Sivakumar, M', 'Tripathy, P K'] | ['Born-Infeld Chern-Simons Theory'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Chern-Simons term', 'Born-Infeld model', 'duality', 'Hamiltonian formalism', 'current algebra', 'quantization, symplectic', 'bosonization', 'n-point function', 'Thirring model', 'constraint', 'dimension, 3'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104087'] | ["In this paper we study in detail the equivalence of the recently introduced Born-Infeld self dual model to the Abelian Born-Infeld-Chern-Simons model in 2+1 dimensions. We first apply the improved Batalin, Fradkin and Tyutin scheme, to embed the Born-Infeld Self dual model to a gauge system and show that the embedded... | ['2001-04-11'] |
879 | ['eng'] | ['Boulahoual, A', 'Sedra, M B'] | ['Note On The Extended Non Commutativity of Coordinates'] | ['Particle Physics - Theory'] | ['operator, algebra', 'differential geometry, noncommutative', 'operator, differential'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104086'] | ['We present in this short note an idea about a possible extension of the standard noncommutative algebra to the formal differential operators framework. In this sense, we develop an analysis and derive an extended noncommutative algebra given by $[x_{a}, x_{b}]_{\\star} = i(\\theta + \\chi)_{ab}$ where $\\theta_{ab}$ ... | ['2001-04-11'] |
880 | ['eng'] | ['Oda, I'] | ['Higgs Mechanism with a Topological Term'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'gauge field theory, Yang-Mills', 'effect, Higgs', 'Goldstone particle', 'charge, topological', 'mass, topological', 'gauge boson, mass generation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104085'] | ["In cases of both abelian and nonabelian gauge groups, we consider the Higgs mechanism in topologically massive gauge theories in an arbitrary space-time dimension. It is shown that the presence of a topological term makes it possible to shift mass of gauge fields in a nontrivial way compared to the conventional value... | ['2001-04-10'] |
881 | ['eng'] | ['MacKenzie, R', 'Paranjape, M B'] | ['From Q-walls to Q-balls'] | ['Particle Physics - Theory'] | ['soliton', 'Q-ball', 'any-dimensional', 'stability', 'quantum mechanics, supersymmetry', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104084'] | ['We study $Q$-ball type solitons in arbitrary spatial dimensions in the setting recently described by Kusenko, where the scalar field potential has a flat direction which rises much slower than $\\phi^2$. We find that the general formula for energy as a function of the charge is, $E_d\\sim Q_d^{(d/d+1)}$ in spatial di... | ['2001-04-10'] |
882 | ['eng'] | ['Camino, J M', 'Paredes, A', 'Ramallo, A V'] | ['Stable Wrapped Branes'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'dimension, 10', 'quantization', 'soliton, BPS', 'baryon, vertex function', 'stability', 'fluctuation', 'string model', 'boundary condition'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104082'] | ['We study some wrapped configurations of branes in the near-horizon geometry of a stack of other branes. The common feature of all the cases analyzed is a quantization rule and the appearance of a finite number of static configurations in which the branes are partially wrapped on spheres. The energy of these configura... | ['2001-04-10'] |
883 | ['eng'] | ['West, Peter C'] | ['E_11 and M Theory'] | ['Particle Physics - Theory'] | ['M-theory', 'supergravity', 'dimension, 11', 'group theory, E(11)', 'group theory, representation', 'nonlinear', 'coset space', 'algebra, Kac-Moody', 'duality'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104081'] | ['We argue that eleven dimensional supergravity can be described by a non-linear realisation based on the group E_{11}. This requires a formulation of eleven dimensional supergravity in which the gravitational degrees of freedom are described by two fields which are related by duality. We show the existence of such a d... | ['2001-04-10'] |
884 | ['eng'] | ['Hooft, G'] | ['Determinism in Free Bosons'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'field theory, transformation', 'model, oscillator', 'invariance, gauge'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104080'] | ['It is shown how to map the quantum states of a system of free Bose particles one-to-one onto the states of a completely deterministic model. It is a classical field theory with a large (global) gauge group.'] | ['2001-04-10'] |
885 | ['eng'] | ['Mintchev, M', 'Ragoucy, E', 'Sorba, Paul'] | ['Spontaneous symmetry breaking in the gl(N)-NLS hierarchy on the half line'] | ['Particle Physics - Theory'] | ['quantization', 'integrability', 'symmetry, spontaneously broken', 'boundary condition', 'group theory, GL(N)', 'Schroedinger equation, nonlinear', 'hierarchy'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104079'] | ['We describe an algebraic framework for studying the symmetry properties of integrable quantum systems on the half line. The approach is based on the introduction of boundary operators. It turns out that these operators both encode the boundary conditions and generate integrals of motion. We use this direct relationsh... | ['2001-04-10'] |
886 | ['eng'] | ['Casteill, P Y', 'Ivanov, E', 'Valent, G'] | ['Quaternionic Extension of the Double Taub-NUT Metric'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'supersymmetry, superspace', 'superspace, harmonic', 'potential, Kaehler', 'space, quaternion', 'constraint, solution', 'differential geometry', 'space-time, Taub-NUT'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104078'] | ['Starting from the generic harmonic superspace action of the quaternion-K\\"ahler sigma models and using the quotient approach we present, in an explicit form, a quaternion-K\\"ahler extension of the double Taub-NUT metric. It possesses $U(1)\\times U(1)$ isometry and supplies a new example of non-homogeneous Einstein... | ['2001-04-10'] |
887 | ['eng'] | ['Brax, P', 'Savoy, C A'] | ['Supersymmetric Flat Directions and Analytic Gauge Invariants'] | ['Particle Physics - Theory'] | ['supersymmetry', 'gauge field theory, Yang-Mills', 'potential, flat direction', 'moduli space', 'duality', 'confinement', 'invariance, gauge'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104077'] | ['We review some aspects of the correspondence between analytic gauge invariants and supersymmetric flat directions for vanishing D-terms and propose a criterion to include the F-term constraints.'] | ['2001-04-10'] |
888 | ['eng'] | ['Sochichiu, C'] | ['Some Notes Concerning the Dynamics of Noncommutative Solitons in the M(atrix) Theory as well as in the Noncommutative Yang--Mills Model'] | ['Particle Physics - Theory'] | ['matrix model', 'gauge field theory, Yang-Mills', 'differential geometry, noncommutative', 'soliton', 'Hilbert space', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104076'] | ["We consider a pair of noncommutative solitons in the noncommutative Yang--Mills/M(atrix) model. In the case when the solitons are separated by a finite distance their ``polarisations'' do not belong to orthogonal subspaces of the Hilbert space. In this case the interaction between solitons is nontrivial. We analyse t... | ['2001-04-10'] |
889 | ['eng'] | ['Vacaru, S I', 'Tintareanu-Mircea, O'] | ['Anholonomic Frames, Generalized Killing Equations, and Anisotropic Taub NUT Spinning Spaces'] | ['Particle Physics - Theory'] | ['Kaluza-Klein model', 'dimension, 5', 'differential geometry', 'tensor, energy-momentum', 'wormhole', 'space-time, Taub-NUT', 'space-time, anisotropy'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104075'] | ['By using anholonomic frames in (pseudo) Riemannian spaces we define anisotropic extensions of the Euclidean Taub-NUT space. With respect to coordinate frames such spaces are described by off-diagonal metrics which could be diagonalized by corresponding anholonomic transforms. We define the conditions when the 5D vacu... | ['2001-04-10'] |
890 | ['eng'] | ['Wetterich, C'] | ['The origin of quantum mechanics and time from incomplete classical statistics'] | ['Particle Physics - Theory'] | ['spin, statistics', 'quantum mechanics', 'time dependence', 'operator, algebra', 'density matrix', 'phase space', 'analytic properties'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104074'] | ['The quantum mechanical concepts of states and operators arise naturally from the question how expectation values of observables can be computed in classical statistical systems where only incomplete local information about the probability distribution is available. The notions of evolution and time are related to the... | ['2001-04-10'] |
891 | ['eng'] | ['Kallosh, R', 'Kofman, L A', 'Linde, Andrei D'] | ['Pyrotechnic Universe'] | ['Particle Physics - Theory'] | ['astrophysics, model', 'membrane model', 'density, perturbation', 'inflationary universe', 'supersymmetry', 'membrane, tension', 'dimension, 4', 'dimension, 5'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104073'] | ['One of the central points of the recently proposed ekpyrotic cosmological scenario based on Horava-Witten theory is that we live on a negative tension brane. However, the tension of the visible brane in HW theory is positive. To improve the ekpyrotic scenario one should change the signs of the brane tensions as well ... | ['2001-04-10'] |
892 | ['eng'] | ['Moussa, K A'] | ['On the (im)possibility of a supersymmetric extension of NGT'] | ['Particle Physics - Theory'] | ['gravitation', 'field theory, action', 'group theory, Poincare', 'gravitino', 'supersymmetry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104072'] | ['We investigate the possibility of constructing a locally supersymmetric extension of NGT (Nonsymmetric Gravitation Theory), based on the graded extension of the Poincare group. In the framework of the simple model that we propose, we end up with a no-go result, namely the impossibility of cancelling some linear contr... | ['2001-04-10'] |
893 | ['eng'] | ['Reall, H S'] | ['Classical and Thermodynamic Stability of Black Branes'] | ['Particle Physics - Theory'] | ['membrane model, p-brane', 'stability, classical', 'stability, thermodynamical', 'quantum gravity', 'black hole'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104071'] | ['It is argued that a large class of black branes are classically stable if, and only if, they are locally thermodynamically stable. This implies that for many black branes the classical Gregory-Laflamme instability must disappear near extremality, even when the brane has a lower entropy per unit volume than an array o... | ['2001-04-10'] |
894 | ['eng'] | ['Herzog, C P', 'Ouyang, P'] | ['Fractional D1-Branes at Finite Temperature'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 1', 'membrane, fractional', 'finite temperature', 'duality', 'supergravity', 'field equations, solution', 'asymptotic behavior', 'perturbation theory', 'singularity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104069'] | ['The supergravity dual of $N$ regular and $M$ fractional D1-branes on the cone over the Einstein manifold $Q^{1,1,1}$ has a naked singularity in the infrared. The supergravity dual of $N$ regular and $M$ fractional D3-branes on the conifold also has such a singularity. Buchel suggested and Gubser et al. have shown tha... | ['2001-04-10'] |
895 | ['eng'] | ['Abdalla, Maria Christina B', 'Gadelha, A L', 'Vancea, I V'] | ['Bosonic D-branes at finite temperature with an external field'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'finite temperature', 'external field', 'phase space, boundary condition', 'phase space, Fock space', 'string model, closed', 'entropy', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104068'] | ['Bosonic boundary states at finite temperature are constructed as solutions of boundary conditions at $T\\neq 0$ for bosonic open strings with a constant gauge field coupled to the boundary. The construction is done in the framework of the thermo field dynamics where a thermal Bogoliubov transformation maps states and... | ['2001-04-10'] |
896 | ['eng'] | ['Benson, K', 'Cho, I'] | ['A universe in a global monopole'] | ['Particle Physics - Theory'] | ['membrane model', 'astrophysics, model', 'monopole', 'dimension, >=4', 'Einstein equation, solution', 'Kaluza-Klein model', 'spontaneous compactification', 'graviton', 'hierarchy', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104067'] | ['We investigate brane physics in a universe with an extra dimensional global monopole and negative bulk cosmological constant. The graviton zero mode is naturally divergent; we thus invoke a physical cut-off to induce four dimensional gravity on a brane at the monopole core. Independently, the massive Kaluza-Klein mod... | ['2001-04-10'] |
897 | ['eng'] | ['Policastro, G', 'Son, D T', 'Starinets, A O'] | ['The shear viscosity of strongly coupled N=4 supersymmetric Yang-Mills plasma'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'expansion 1/N', 'finite temperature', 'strong coupling', 'plasma, viscosity', 'graviton, absorption', 'membrane model', 'field theory, anti-de Sitter', 'field theory, conformal'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104066'] | ["Using the anti-de Sitter/conformal field theory correspondence, we relate the shear viscosity \\eta of the finite-temperature N=4 supersymmetric Yang-Mills theory in the large N, strong-coupling regime with the absorption cross section of low-energy gravitons by a near-extremal black three-brane. We show that in the ... | ['2001-04-09'] |
898 | ['eng'] | ['Policastro, G', 'Starinets, A O'] | ['On the Absorption by Near-Extremal Black Branes'] | ['Particle Physics - Theory'] | ['membrane model', 'scalar particle, absorption', 'asymptotic expansion', 'partial wave', 'gravitation', 'finite temperature'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104065'] | ["We study the absorption of a minimally coupled scalar in the gravitational background created by a stack of near-extremal black three-branes, and more generally by M2, M5 and Dp branes. The absorption probability has the form P(l) = P_0(l) f_l(\\lambda), where P_0(l) is the partial wave's absorption probability in th... | ['2001-04-09'] |
899 | ['eng'] | ['Carlino, G', 'Konishi, K I', 'Kumar, S P', 'Murayama, H'] | ['Vacuum Structure and Flavor Symmetry Breaking in Supersymmetric SO(n_c) Gauge Theories'] | ['Particle Physics - Theory'] | ['gauge field theory, SO(N)', 'supersymmetry, superfield', 'symmetry breaking, flavor', 'vacuum state', 'particle, multiplet', 'gaugino, condensation', 'instanton', 'monopole', 'approximation, quasiclassical', 'index theorem'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104064'] | ["We determine the vacuum structure and phases of N=1 theories obtained via a mass \\mu for the adjoint chiral superfield in N=2, SO(n_c) SQCD. For large number of flavors these theories have two groups of vacua. The first exhibits dynamical breaking of flavor symmetry \\USp(2n_f) \\to U(n_f) and arises as a relevant d... | ['2001-04-09'] |
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