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 |
|---|---|---|---|---|---|---|---|---|
2,000 | ['eng'] | ['Schmidhuber, C'] | ['Strings from Logic'] | ['Particle Physics - Theory'] | ['talk, Geneva 2000/11/07', 'model, composite', 'string model', 'group theory', 'logic'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011065'] | ["What are strings made of? The possibility is discussed that strings are purely mathematical objects, made of logical axioms. More precisely, proofs in simple logical calculi are represented by graphs that can be interpreted as the Feynman diagrams of certain large-N field theories. Each vertex represents an axiom. St... | ['2000-11-10'] |
2,001 | ['eng'] | ['Motavali, H', 'Golshani, M'] | ['Geometrization of the Quantum Effects'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'vacuum state', 'condensation', 'gravitation', 'invariance, conformal', 'particle, relativistic'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011064'] | ['A variant of the divergence theory for vacuum-structure developed previously is analyzed from the viewpoint of a conformally invariant gravitational model. Invariance breaking is introduced by choosing a preferred configuration of dynamical variables. In this way a particle interpretation is presented which leads to ... | ['2000-11-10'] |
2,002 | ['eng'] | ['Doikou, A'] | ['"New" boundary conditions in integrable lattice models'] | ['Particle Physics - Theory'] | ['talk, Paris 2000/09/07', 'model, spin', 'integrability', 'boundary condition', 'transfer matrix', 'Bethe ansatz', 'R-matrix', 'symmetry, SU(3)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0104083'] | ["We consider the case of an integrable quantum spin chain with ``soliton non-preserving'' boundary conditions. This is the first time that such boundary conditions have been considered in the spin chain framework. We construct the transfer matrix of the model, we study its symmetry and we find explicit expressions for... | ['2001-04-10'] |
2,003 | ['eng'] | ['Salehi, H', 'Motavali, H', 'Golshani, M'] | ['Vacuum-Structure and a Relativistic Pilot Wave'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'vacuum state', 'symmetry breaking, Lorentz', 'field equations, solution'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011063'] | ['We study a model for analyzing the effect of a principal violation of the Lorentz-invariance on the structure of vacuum. The model is based on the divergence theory developed by Salehi (1997). It is shown that the divergence theory can be used to model an ensemble of particles. The ensemble is characterized by the co... | ['2000-11-09'] |
2,004 | ['eng'] | ['Billó, M', 'Craps, B', 'Roose, F'] | ["Orbifold boundary states from Cardy's condition"] | ['Particle Physics - Theory'] | ['field theory, conformal', 'field theory, rational', 'dimension, 2', 'phase space, boundary condition', 'membrane model, D-brane', 'orbifold', 'membrane, fractional', 'differential forms', 'transformation, modular', 'torsion, discrete', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011060'] | ["Boundary states for D-branes at orbifold fixed points are constructed in close analogy with Cardy's derivation of consistent boundary states in RCFT. Comments are made on the interpretation of the various coefficients in the explicit expressions, and the relation between fractional branes and wrapped branes is invest... | ['2000-11-09'] |
2,005 | ['eng'] | ['Greene, Brian R'] | ['Aspects of Collapsing Cycles'] | ['Particle Physics - Theory'] | ['talk, Ann Arbor 2000/07/10', 'string model', 'membrane model', 'supersymmetry', 'homology', 'duality', 'soliton, BPS', 'moduli space', 'field equations, solution', 'topology', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011059'] | ['Much has been learned about string theory over the last few years by studying properties of cycles and branes in a given background geometry. Here we discuss three situations (quantum volume, attractor flows/D-brane stability, and dynamical topology change) in which cycles in a Calabi-Yau background evolve and/or deg... | ['2000-11-09'] |
2,006 | ['eng'] | ['Sakamoto, M', 'Tachibana, M', 'Takenaga, K'] | ['SUSY Breaking through Compactification'] | ['Particle Physics - Theory'] | ['talk, Osaka 2000/07/27', 'supersymmetry, symmetry breaking', 'symmetry, spontaneously broken', 'higher-dimensional', 'dimension, 4', 'spontaneous compactification', 'boundary condition', 'effective potential', 'vacuum state'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011058'] | ['We propose a new mechanism of spontaneous supersymmetry breaking. The existence of extra dimensions with nontrivial topology plays an important role. We investigate new features resulting from this mechanism. One noteworthy feature is that there exists a phase in which the translational invariance for the compactifie... | ['2000-11-09'] |
2,007 | ['eng'] | ['Tatar, R'] | ['T-duality and Actions for Non-Commutative D-Branes'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 9', 'field theory, action', 'Born-Infeld model', 'Chern-Simons term', 'T-duality', 'differential geometry, noncommutative', 'dimensional reduction'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011057'] | ['We show how the T-duality is realized for D-branes with noncommutative world-volume coordinates. We discuss D-branes wrapped on tori and the result is that the recently found noncommutative actions form a consistent collection due to the T-duality mapping between noncommutative D-branes and rotated commutative D-bran... | ['2000-11-09'] |
2,008 | ['eng'] | ['Sanjay, S'] | ['Logarithmic operators in SL(2, R) WZNW model, Singletons and $AdS_{3}/(L)CFT_{2}$ correspondence'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'field theory, anti-de Sitter', 'dimension, 3', 'current algebra', 'two-point function', 'operator product expansion', 'singleton', 'symmetry, SL(2,R)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011056'] | ['We discuss the role of singletons in SL(2, R) WZNW model and AdS_3/LCFT_2 correspondence.'] | ['2000-11-09'] |
2,009 | ['eng'] | ['Jellal, A', 'Kinani, E H E'] | ['Graded q-pseudo-differential Operators and Supersymmetric Algebras'] | ['Particle Physics - Theory'] | ['supersymmetry, algebra', 'quantum algebra, SL(2)', 'operator, differential', 'algebra, Hopf', 'algebra, Lie', 'commutation relations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011055'] | ['We give a supersymmetric generalization of the sine algebra and the quantum algebra $U_{t}(sl(2))$. Making use of the q-pseudo-differential operators graded with a fermionic algebra, we obtain a supersymmetric extension of sine algebra. With this scheme we get also a quantum superalgebra $U_{t}(sl(2/1)$.'] | ['2000-11-09'] |
2,010 | ['eng'] | ['Kristiansson, F', 'Rajan, P'] | ['Wound String Scattering in NCOS Theory'] | ['Particle Physics - Theory'] | ['string model, closed', 'string model, D-string', 'scattering amplitude', 'propagator', 'differential geometry, noncommutative'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011054'] | ['We calculate the amplitude for a non-excited closed string with nonzero winding number to scatter from a D-string with a near critical E field. We go to the NCOS limit and observe that we get the same result if we adopt another approach put forward by Gomis and Ooguri.'] | ['2000-11-09'] |
2,011 | ['eng'] | ['Kosinski, P', 'Lukierski, J', 'Maslanka, P'] | ['Quantum Deformations of Space-Time SUSY and Noncommutative Superfield Theory'] | ['Particle Physics - Theory'] | ['talk, Kiev 2000/09/24', 'algebra, Poincare', 'algebra, conformal', 'supersymmetry, algebra', 'superfield', 'space-time, deformation', 'differential geometry, noncommutative'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011053'] | ["We review shortly present status of quantum deformations of Poincar\\'{e} and conformal supersymmetries. After recalling the $\\kappa$-deformation of $\\hbox{D=4}$ Poincar\\'{e} supersymmetries we describe the corresponding star product multiplication for chiral superfields. In order to describe the deformation of ch... | ['2000-11-09'] |
2,012 | ['eng'] | ['Nutku, Y'] | ['New symplectic structure for KdV'] | ['Particle Physics - Theory'] | ['talk, Chicago 2000/07/22', 'differential equations, nonlinear', 'integrability', 'Korteweg-de Vries equation', 'Hamiltonian formalism', 'differential forms, symplectic'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011052'] | ["Starting with Lagrangians, which turn out to be degenerate, the Hamiltonian operators for integrable systems can be constructed using Dirac's theory of constraints. We illustrate this by giving a systematic discussion of the first Hamiltonian structure of KdV. The first symplectic 2-form obtained from Dirac's theory ... | ['2000-11-09'] |
2,013 | ['eng'] | ['Papantonopoulos, E'] | ['Brane Inflation from Mirage Cosmology'] | ['Particle Physics - Theory'] | ['talk, Rome 2000/07/02', 'membrane model', 'inflationary universe', 'energy, density', 'string model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011051'] | ['We study the cosmological evolution of a D3-brane universe in a type 0 string background. We follow the brane-universe along the radial coordinate of the background and we calculate the energy density which is induced on the brane because of its motion in the bulk. We find that for some typical values of the paramete... | ['2000-11-09'] |
2,014 | ['eng'] | ['Saaidi, K', 'Sadjadi, H M'] | ["Generating Functional and Large N-Limit of Nonlocal 2D Generalized Yang-Mills Theories ($nlgYM_{2}$'s)"] | ['Particle Physics - Theory'] | ['gauge field theory, U(N)', 'partition function', 'dimension, 2', 'field theory, scalar', 'field theory, nonlocal', 'path integral', 'expansion 1/N', 'critical phenomena', 'phi**n model, 4'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011050'] | ["Using the path integral method, we calculate the partition function and generating functional (of the field strengths) on the nonlocal generalized 2D Yang - Mills theories ($nlgYM_2$'s), which is nonlocal in auxiliary field [14]. Our calculations is done for general surfaces. We find a general expression for free ene... | ['2000-11-09'] |
2,015 | ['eng'] | ['Guendelman, E I'] | ['The volume element of space-time and scale invariance'] | ['Particle Physics - Theory'] | ['talk, Ramat Gan 2000/06/26', 'gravitation, action', 'gravitation, induced', 'field theory, scalar', 'field equations', 'inflationary universe', 'invariance, conformal', 'string model', 'membrane model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011049'] | ['Scale invariance is considered in the context of gravitational theories where the action, in the first order formalism, is of the form $S = \\int L_{1} \\Phi d^4x$ + $\\int L_{2}\\sqrt{-g}d^4x$ where the volume element $\\Phi d^4x$ is independent of the metric. For global scale invariance, a "dilaton" $\\phi$ has to ... | ['2000-11-09'] |
2,016 | ['eng'] | ['Uranga, A M'] | ['D-brane probes, RR tadpole cancellation and K-theory charge'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'string model', 'supersymmetry', 'spontaneous compactification, Calabi-Yau', 'space, orientifold', 'K-theory', 'group theory, representation', 'particle, multiplet', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011048'] | ['We study RR charge cancellation consistency conditions in string compactifications with open string sectors, by introducing D-brane probes in the configuration. We show that uncancelled charges manifest as chiral gauge anomalies in the world-volume of suitable probes. RR tadpole cancellation can therefore be describe... | ['2000-11-09'] |
2,017 | ['eng'] | ['Mukhopadhyay, P'] | ['Unstable Non-BPS D-Branes of Type-II String Theories in Light-Cone Green-Schwarz Formalism'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'light cone gauge', 'membrane model, D-brane', 'algebra, Kac-Moody', 'algebra, representation', 'phase space, boundary condition'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011047'] | ['The problem of describing the boundary states of unstable non-BPS D-branes of type-II string theories in light-cone Green-Schwarz (GS) formalism is addressed. Regarding the type II theories in light-cone gauge as different realizations of the $\\hat{SO}(8)_{k=1}$ Kac-Moody algebra, the non-BPS D-brane boundary states... | ['2000-11-09'] |
2,018 | ['eng'] | ['Argurio, R', 'Giveon, Amit', 'Shomer, A'] | ['The Spectrum of N=3 String Theory on $AdS_{3} \\times G/H$'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'field theory, anti-de Sitter', 'coset space, SU(3)/U(1)', 'coset space, SO(5)/SO(3)', 'particle, multiplet'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011046'] | ['We continue the study of string theory on AdS_3 x SU(3)/U(1) and AdS_3 x SO(5)/SO(3). We compute the spacetime spectrum of the N=3 supersymmetric dual CFT using worldsheet techniques. The spectrum of chiral primaries coincides for the two models. Unlike N=4 theories, the building block of the symmetric product in spa... | ['2000-11-09'] |
2,019 | ['eng'] | ['Brax, P', 'Davis, A C'] | ['Cosmological Solutions of Supergravity in Singular Spaces'] | ['Particle Physics - Theory'] | ['supergravity', 'dimension, 5', 'membrane model', 'astrophysics, fundamental constant', 'quintessence', 'astrophysics, model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011045'] | ['We study brane-world solutions of five-dimensional supergravity in singular spaces. We exhibit a self-tuned four-dimensional cosmological constant when five-dimensional supergravity is broken by an arbitrary tension on the brane-world. The brane-world metric is of the FRW type corresponding to a cosmological constant... | ['2000-11-09'] |
2,020 | ['eng'] | ['Rastelli, L', 'Van Raamsdonk, M'] | ['A note on dilaton absorption and near-infrared D3 brane holography'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 3', 'dilaton, absorption', 'holography', 'supergravity', 'cross section', 'partial wave', 'gauge field theory, Yang-Mills'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011044'] | ['We consider the first subleading terms in the low-energy cross section for the absorption of dilaton partial waves by D3-branes. We demonstrate that these corrections, computed previously via supergravity, can be reproduced exactly in a worldvolume calculation using a deformation of N=4 SYM theory by a dimension eigh... | ['2000-11-09'] |
2,021 | ['eng'] | ['Armoni, Adi', 'Frishman, Yitzhak', 'Sonnenschein, J'] | ['Massless $QCD_{2}$ From Current Constituents'] | ['Particle Physics - Theory'] | ['field theory, SU(N)', 'fermion, flavor', 'dimension, 2', 'field theory, massless', 'bosonization', 'current, field equations', 'mass spectrum', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011043'] | ["We discuss the spectra of multi-flavor massless QCD_2. An approximation in which the Hilbert space is truncated to two currents states is used. We write down a 't Hooft like equation for the wave function of the two currents states. We solve this equation for the lowest massive state and find an excellent agreement w... | ['2000-11-08'] |
2,022 | ['eng'] | ['Ketov, S V'] | ['Why do we need supersymmetry?'] | ['Particle Physics - Theory'] | ['talk', 'particle physics, history', 'supersymmetry', 'Feynman graph', 'Wilson loop', 'gauge field theory, SU(N)', 'string model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011042'] | ['These short (personal) notes appeared as the result of my attempt to address the question raised in the title.'] | ['2000-11-08'] |
2,023 | ['eng'] | ['Bigazzi, F', 'Girardello, L', 'Zaffaroni, A'] | ['A note on regular type 0 solutions and confining gauge theories'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'supergravity', 'field equations, solution', 'membrane model, fractional', 'gauge field theory, SU(N) x SU(M)', 'space, conifold', 'transformation, conformal'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011041'] | ['We discuss some features of the regular supergravity solution for fractional branes on a deformed conifold, recently found by Klebanov-Strassler, mostly adapting it to a type 0 non-sypersymmetric context. The non-supersymmetric gauge theory is SU(M)*SU(M) with two bi-fundamental Weyl fermions. The tachyon is now stab... | ['2000-11-08'] |
2,024 | ['eng'] | ['Dolan, F A', 'Osborn, H'] | ['Conformal Four Point Functions and the Operator Product Expansion'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'dimension, 4', 'n-point function, 4', 'operator product expansion', 'tensor, energy-momentum', 'space-time, anti-de Sitter', 'partial wave', 'operator, derivative'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011040'] | ['Various aspects of the four point function for scalar fields in conformally invariant theories are analysed. This depends on an arbitrary function of two conformal invariants u,v. A recurrence relation for the function corresponding to the contribution of an arbitrary spin field in the operator product expansion to t... | ['2000-11-08'] |
2,025 | ['eng'] | ['Suyama, T'] | ['A Note on Singular Black Holes'] | ['Particle Physics - Theory'] | ['black hole, entropy', 'dimension, 5', 'dimension, 4', 'membrane model', 'singularity', 'string model', 'field theory, conformal', 'supersymmetry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011039'] | ['We reconsider entropy of black holes which do not have finite area horizon. It is suggested that some of them should have nonzero entropy from both supergravity and string theory point of view. We also refine our arguments in our previous papers for the existence of the microstates of the black hole.'] | ['2000-11-08'] |
2,026 | ['eng'] | ['Kimura, Y', 'Kitazawa, Y'] | ['Supercurrent Interactions in Noncommutative Yang-Mills and IIB Matrix Model'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'matrix model', 'differential geometry, noncommutative', 'background field', 'supersymmetry, current', 'supergravity', 'gravitino, exchange', 'interaction, long-range', 'dimension, 10'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011038'] | ['It is known that noncommutative Yang-Mills is equivalent to IIB matrix model with a noncommutative background, which is interpreted as a twisted reduced model. In noncommutative Yang-Mills, long range interactions can be seen in nonplanar diagrams after integrating high momentum modes. These interactions can be under... | ['2000-11-08'] |
2,027 | ['eng'] | ['Huang, W H'] | ['Finite-Temperature Casimir Effect on the Radius Stabilization of Noncommutative Torus'] | ['Particle Physics - Theory'] | ['phi**n model, 3', 'dimension, >4', 'field theory, torus', 'differential geometry, noncommutative', 'Kaluza-Klein model', 'finite temperature', 'perturbation theory, higher-order', 'effect, Casimir', 'partition function', 'regularization, zeta function', 'mass formula, correction'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011037'] | ['The one-loop correction to the spectrum of Kaluza-Klein system for the $\\phi^3$ model on $R^{1,d}\\times (T_\\theta^2)^L$ is evaluated in the high temperature limit, where the $1+d$ dimensions are the ordinary flat Minkowski spacetimes and the $L$ extra two-dimensional tori are chosen to be the noncommutative torus ... | ['2000-11-08'] |
2,028 | ['eng'] | ['Dunne, G V'] | ['QED Effective Actions in Inhomogeneous Backgrounds'] | ['Particle Physics - Theory'] | ['talk, Trieste 2000/10/05', 'quantum electrodynamics', 'fermion', 'effective action', 'background field', 'perturbation theory, higher-order', 'expansion, derivative'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011036'] | ['The QED effective action encodes nonlinear interactions due to quantum vacuum polarization effects. While much is known for the special case of electrons in a constant electromagnetic field (the Euler-Heisenberg case), much less is known for inhomogeneous backgrounds. Such backgrounds are more relevant to experimenta... | ['2000-11-08'] |
2,029 | ['eng'] | ['Moffat, J W'] | ['Non-Anticommutative Quantum Field Theory'] | ['Particle Physics - Theory'] | ['talk, Trieste 2000/10/05', 'differential geometry, noncommutative', 'space, Grassmann', 'quantum space', 'quantization', 'operator, algebra', 'field theory, scalar', 'propagator', 'perturbation theory, higher-order'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011035'] | ['Non-anticommutative field theory is studied in which the spacetime coordinates satisfy a non-anticommuting relation. A supervector space is introduced as the underlying mathematical formalism for the quantized spacetime. Perturbative scalar field theory is investigated and one loop diagrams are calculated and found t... | ['2000-11-08'] |
2,030 | ['eng'] | ['Das-Gupta, K', 'Yin, Z'] | ['Non-Abelian Geometry'] | ['Particle Physics - Theory'] | ['differential geometry, noncommutative', 'membrane model, D-brane', 'string model', 'field theory, deformation', 'field theory, tensor', 'field equations, solution', 'duality', 'supergravity', 'geometry, nonabelian', 'symmetry, SU(2)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011034'] | ['Spatial noncommutativity is similar and can even be related to the non-Abelian nature of multiple D-branes. But they have so far seemed independent of each other. Reflecting this decoupling, the algebra of matrix valued fields in noncommutative space is thought to be the simple tensor product of constant matrix algeb... | ['2000-11-08'] |
2,031 | ['eng'] | ['Tseytlin, Arkady A'] | ['Sigma model approach to string theory effective actions with tachyons'] | ['Particle Physics - Theory'] | ['string model, open', 'string model, closed', 'boson, string', 'effective action', 'sigma model, nonlinear', 'tachyon', 'field theory, action', 'Born-Infeld model', 'path integral', 'beta function', 'renormalization', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011033'] | ['Motivated by recent discussions of actions for tachyon and vector fields related to tachyon condensation in open string theory we review and clarify some aspects of their derivation within sigma model approach. In particular, we demonstrate that the renormalized partition function $Z(T,A)$ of boundary sigma model giv... | ['2000-11-07'] |
2,032 | ['eng'] | ['Bozhilov, P'] | ['Null p-Branes'] | ['Particle Physics - Theory'] | ['thesis', 'string model', 'supersymmetry', 'dimension, >4', 'spontaneous compactification, torus', 'field theory, Calabi-Yau', 'soliton', 'membrane model, D-brane', 'tension, 0', 'M-theory', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011032'] | ['The dissertation is devoted to the description and further investigation of the properties of null p-branes.'] | ['2000-11-07'] |
2,033 | ['eng'] | ['Faux, M', 'Lüst, Dieter', 'Ovrut, B A'] | ['Twisted Sectors and Chern-Simons Terms in M-Theory Orbifolds'] | ['Particle Physics - Theory'] | ['M-theory', 'orbifold', 'Chern-Simons term', 'anomaly', 'perturbation theory, higher-order', 'group theory, representation', 'dimension, 11'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011031'] | ['It is shown that the twisted sector spectrum, as well as the associated Chern-Simons interactions, can be determined on M-theory orbifold fixed planes that do not admit gravitational anomalies. This is demonstrated for the seven-planes arising within the context of an explicit $R^6 \\times S^1/Z_2 \\times T^4/Z_2$ or... | ['2000-11-07'] |
2,034 | ['eng'] | ['Fabris, J C', 'Pelinson, A M', 'Shapiro, I L'] | ['Anomaly-Induced Effective Action and Inflation'] | ['Particle Physics - Theory'] | ['talk, San Feliu de Guixols 2000/09/30', 'inflationary universe', 'effective action', 'anomaly', 'gravitational radiation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011030'] | ['In the early Universe matter can be described as a conformal invariant ultra-relativistic perfect fluid, which does not contribute, on classical level, to the evolution of the isotropic and homogeneous metric. If we suppose that there is some desert in the particle spectrum just below the Planck mass, then the effect... | ['2000-11-07'] |
2,035 | ['eng'] | ['Kluson, J'] | ['Matrix Model and String Field Theory'] | ['Particle Physics - Theory'] | ['matrix model', 'field theory, string', 'membrane model, D-brane', 'differential geometry, noncommutative', 'background field', 'tachyon, condensation', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011029'] | ['In this short note we would like to show the relation between the cubic string field theory for N D-instantons and the string field theory in the presence of the background B field.'] | ['2000-11-07'] |
2,036 | ['eng'] | ['Itoyama, H'] | ['Note on Open String/D-brane System and Noncommutative Soliton'] | ['Particle Physics - Theory'] | ['talk, Yamanashi 2000/08/07', 'string model, open', 'membrane model, D-brane', 'membrane model, p-brane', 'differential geometry, noncommutative', 'two-point function', 'soliton', 'scattering amplitude', 'field theory, scalar'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011028'] | ["This is a summary of a series of papers hep-th/9910263,0005283,0010066 written with B. Chen, T. Matsuo and K. Murakami on a p-p', (p<p^{\\prime}) open string with B_{ij} field, which has led us to the explicit identification of the Dp-brane with the noncommutative projector soliton via the gaussian damping factor. A ... | ['2000-11-07'] |
2,037 | ['eng'] | ['Losev, A S', 'Shifman, M', 'Vainshtein, A I'] | ['Single State Supermultiplet in 1+1 Dimensions'] | ['Particle Physics - Theory'] | ['dimension, 2', 'supersymmetry, superfield', 'supersymmetry, multiplet', 'supersymmetry, algebra', 'algebra, representation', 'soliton, BPS', 'Landau-Ginzburg model', 'fermion, zero mode', 'central charge, anomaly'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011027'] | ['We discuss the issue of multiplicity of the BPS states in (1+1)-dimensional models with minimal N=1 supersymmetry. The previous argument that the irreducible representation of supersymmetry algebra is one-dimensional in this case is elaborated. Algebraic treatment is illustrated by explicit quasiclassical quantizatio... | ['2000-11-07'] |
2,038 | ['eng'] | ['Youm, D'] | ['Brane Inflation in the Background of D-Brane with NS B Field'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 3', 'field theory, tensor', 'background field', 'inflationary universe'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011024'] | ['We study the cosmological evolution of the four-dimensional universe on the probe D3-brane in geodesic motion in the curved background of the source Dp-brane with non-zero NS B field. The Friedman equations describing the expansion of the brane universe are obtained and analyzed for various limits. We elaborate on co... | ['2000-11-07'] |
2,039 | ['eng'] | ['Cvetic, M', 'Lu, H', 'Pope, C N'] | ['Brane Resolution Through Transgression'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'membrane model, p-brane', 'membrane, fractional', 'supergravity', 'field theory, Kaehler', 'dimension, >4', 'instanton', 'field equations, solution', 'string model', 'dyon', 'differential forms, harmonic'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011023'] | ["Modifications to the singularity structure of D3-branes that result from turning on a flux for the R-R and NS-NS 3-forms (fractional D3-branes) provide important gravity duals of four-dimensional N=1 super-Yang-Mills theories. We construct generalisations of these modified p-brane solutions in a variety of other case... | ['2000-11-07'] |
2,040 | ['eng'] | ['Bashir, A'] | ['Non-perturbative Fermion Propagator for the Massless Quenched QED3'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'dimension, 3', 'fermion, propagator', 'vertex function', 'nonperturbative', 'invariance, gauge', 'field theory, massless', 'approximation, quenching', 'Dyson-Schwinger equation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011022'] | ['For massless quenched QED in three dimensions, we evaluate a non-perturbative expression for the fermion propagator which agrees with its two loop perturbative expansion in the weak coupling regime. This calculation is carried out by making use of the Landau-Khalatnikov-Fradkin transformations. Any improved construct... | ['2000-11-06'] |
2,041 | ['eng'] | ['Petkova, V B', 'Zuber, J B'] | ['Generalised twisted partition functions'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'field theory, rational', 'dimension, 2', 'boundary condition', 'partition function', 'operator product expansion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011021'] | ["We consider the set of partition functions that result from the insertion of twist operators compatible with conformal invariance in a given 2D Conformal Field Theory (CFT). A consistency equation, which gives a classification of twists, is written and solved in particular cases. This generalises old results on twist... | ['2000-11-06'] |
2,042 | ['eng'] | ['Pasti, P', 'Sorokin, D', 'Tonin, M'] | ['Geometrical aspects of superbrane dynamics'] | ['Particle Physics - Theory'] | ['talk, Moscow 2000/06/05', 'membrane model', 'supersymmetry, symmetry breaking', 'dependence, gauge', 'Goldstone particle, superfield'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011020'] | ['The geometrical (superembedding) approach is used as a tool for deriving from the worldvolume dynamics of superbranes field theoretical models exhibiting partial supersymmetry breaking. In this way we obtain nonlinear actions for Goldstone superfields associated with physical degrees of freedom of the superbranes.'] | ['2000-11-06'] |
2,043 | ['eng'] | ['Kiem, Y H', 'Park, D H', 'Sato, H T'] | ['Stretched strings and worldsheets with a handle'] | ['Particle Physics - Theory'] | ['gauge field theory, tensor', 'phi**n model, 3', 'partition function', 'background field', 'propagator', 'perturbation theory, higher-order', 'string model', 'scattering amplitude'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011019'] | ['In the presence of the constant background NS two-form gauge field, we construct the worldsheet partition functions, bulk propagators and boundary propagators for the worldsheets with a handle and a boundary. We analyze the noncommutative $\\phi^3$ field theory amplitudes that correspond to the general two-point inse... | ['2000-11-06'] |
2,044 | ['eng'] | ['Bergshoeff, E A', 'De Roo, M', 'Sevrin, A'] | ['Non-abelian Born-Infeld and kappa-symmetry'] | ['Particle Physics - Theory'] | ['Born-Infeld model, nonabelian', 'supersymmetry', 'transformation, gauge', 'field theory, action', 'Wess-Zumino term', 'membrane model, D-brane', 'kappa symmetry', 'gauge fixing'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011018'] | ['We define an iterative procedure to obtain a non-abelian generalization of the Born-Infeld action. This construction is made possible by the use of the severe restrictions imposed by kappa-symmetry. In this paper we will present all bosonic terms in the action up to terms quartic in the Yang-Mills field strength and ... | ['2000-11-06'] |
2,045 | ['eng'] | ['Douglas, M R'] | ['D-branes, Categories and N=1 Supersymmetry'] | ['Particle Physics - Theory'] | ['membrane model, D-brane', 'supersymmetry', 'string model, open', 'string, topological', 'boundary condition', 'field theory, conformal', 'field theory, Calabi-Yau', 'soliton, BPS', 'moduli space', 'membrane, fractional', 'symmetry, mirror', 'category', 'stability', 'numerical calculations', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011017'] | ['We show that boundary conditions in topological open string theory on Calabi-Yau manifolds are objects in the derived category of coherent sheaves, as foreseen in the homological mirror symmetry proposal of Kontsevich. Together with conformal field theory considerations, this leads to a precise criterion determining ... | ['2000-11-03'] |
2,046 | ['eng'] | ['Klemm, D', 'Sabra, W A'] | ['General (Anti-)de Sitter Black Holes in Five Dimensions'] | ['Particle Physics - Theory'] | ['black hole, rotator', 'supergravity', 'dimension, 5', 'multiplet, vector', 'black hole, mass', 'angular momentum', 'gauge field theory, Yang-Mills', 'dimension, 4', 'supersymmetry', 'duality', 'approximation, strong coupling', 'tensor, energy-momentum', 'field theory, conformal', 'space-time, de Sitter', 'spinor, Kil... | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011016'] | ['We find a general class of rotating charged black hole solutions to N=2, D=5 gauged supergravity coupled to vector supermultiplets. The supersymmetry properties of these solutions are studied, and their mass and angular momenta are obtained. We also compute the stress tensor of the dual D=4, N=4 super Yang-Mills theo... | ['2000-11-03'] |
2,047 | ['eng'] | ['Buchholz, D', 'Doplicher, S', 'Morchio, G', 'Roberts, J E', 'Strocchi, F'] | ['Quantum delocalization of the electric charge'] | ['Particle Physics - Theory'] | ['axiomatic field theory', 'gauge field theory, U(1)', 'field theory, scalar', 'fermion', 'charge, electric', 'field theory, local', 'operator, algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011015'] | ['The classical Maxwell-Dirac and Maxwell-Klein-Gordon theories admit solutions of the field equations where the corresponding electric current vanishes in the causal complement of some bounded region of Minkowski space. This poses the interesting question of whether states with a similarly well localized charge densit... | ['2000-11-03'] |
2,048 | ['eng'] | ['Ansoldi, S', 'Castro, C', 'Spallucci, E'] | ['Chern-Simons Hadronic Bag from Quenched Large-N QCD'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'bag model', 'expansion 1/N', 'Chern-Simons term', 'approximation, quenching', 'string model', 'charge, topological', 'membrane model, p-brane'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011013'] | ['SU(N) reduced, quenched, gauge theories have been shown to be related to string theories. We extend this result and show how a 4-dimensional, reduced, quenched, Yang-Mills theory, supplemented by the topological term, can be related through the Wigner-Weyl-Moyal correspondence to an open 3-brane model. The boundary o... | ['2000-12-20'] |
2,049 | ['eng'] | ['Zupnik, B M'] | ['Short harmonic superfields and light-cone gauge in super-Yang-Mills equations'] | ['Particle Physics - Theory'] | ['talk, Moscow 2000/06/05', 'gauge field theory, Yang-Mills', 'supersymmetry, superfield', 'superspace, harmonic', 'light cone gauge', 'field equations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011012'] | ['We analyze the superfield equations of the 4-dimensional N=2 and N=4 SYM-theories 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 ha... | ['2000-11-03'] |
2,050 | ['eng'] | ['Banerjee, R', 'Chakraborty, B', 'Scaria, T'] | ["Polarization Vectors, Doublet Structure and Wigner's Little Group in Planar Field Theory"] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Chern-Simons term', 'dimension, 3', 'polarization', 'Hamiltonian formalism', 'group theory, Poincare', 'group theory, representation', 'field theory, Proca'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011011'] | ["We establish the equivalence of the Maxwell-Chern-Simons-Proca model to a doublet of Maxwell-Chern-Simons models at the level of polarization vectors of the basic fields using both Lagrangian and Hamiltonian formalisms. The analysis reveals a U(1) invariance of the polarization vectors in the momentum space. Its impl... | ['2000-11-03'] |
2,051 | ['eng'] | ['Terashima, H'] | ["The Brown-Henneaux's central charge from the path-integral boundary condition"] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'dimension, 3', 'gravitation', 'boundary condition', 'path integral', 'central charge', 'Ward identity', 'commutation relations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011010'] | ["We derive the Brown-Henneaux's commutation relation and central charge in the framework of the path integral. If we use the leading part of the asymptotic symmetry to derive the Ward-Takahashi identity, we can see the central charge arises from the fact that the boundary condition of the path integral is not invarian... | ['2000-11-03'] |
2,052 | ['eng'] | ['Gerasimov, A A', 'Shatashvili, S L'] | ['Stringy Higgs Mechanism and the Fate of Open Strings'] | ['Particle Physics - Theory'] | ['string model, open', 'boson, string', 'vacuum state', 'effect, Higgs', 'symmetry, spontaneously broken', 'quantization, Batalin-Vilkovisky', 'transformation, Becchi-Rouet-Stora', 'partition function', 'phase space', 'Bogolyubov transformation', 'tachyon, condensation', 'sigma model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011009'] | ["We propose a refinement of the physical picture describing different vacua in bosonic string theory. The vacua with closed strings and open strings are connected by the string field theory version of the Higgs mechanism, generalizing the Higgs mechanism of an abelian gauge field interacting with a complex scalar. In ... | ['2000-11-03'] |
2,053 | ['eng'] | ['Johnson, C V'] | ['The Enhancon, Multimonopoles and Fuzzy Geometry'] | ['Particle Physics - Theory'] | ['talk, Ann Arbor 2000/07/10', 'membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 6', 'supergravity', 'string model', 'supersymmetry', 'gauge field theory, SU(N)', 'monopole', 'postulated particle, enhancon', 'space, fuzzy'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011008'] | ["The presentation at Strings 2000 was intended to be in two main parts, but there was only time for part one. However both parts appeared on the online proceedings, and are also included in this document. The first part concerns an exploration of the connection between the physics of the `enhancon' geometry arising fr... | ['2000-11-02'] |
2,054 | ['eng'] | ['Acebal, J L', 'Franco, D H T'] | ['Asymptotic Scale Invariance in a Non-Abelian Chern-Simons-Matter Model'] | ['Particle Physics - Theory'] | ['Chern-Simons term', 'gauge field theory, SU(N)', 'matter', 'space-time', 'beta function', 'scaling, invariance'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011007'] | ['The general method of reduction in the number of coupling parameters is applied in a Chern-Simons-matter model with several independent couplings. We claim that considering the asymptotic region, and expressing all dimensionless coupling parameters as functions of the Chern-Simons coupling, it is possible to show tha... | ['2000-11-02'] |
2,055 | ['eng'] | ['Kehagias, A A', 'Tamvakis, Kyriakos'] | ['A Self-Tuning Solution of the Cosmological Constant Problem'] | ['Particle Physics - Theory'] | ['astrophysics, fundamental constant', 'dimension, 5', 'dimension, 4', 'field theory, scalar', 'membrane model', 'gravitation', 'invariance, Poincare'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011006'] | ["We discuss the four-dimensional cosmological constant problem in a five-dimensional setting. A scalar field coupled to the SM forms dynamically a smooth brane with four-dimensional Poincar\\'e invariance, independently of SM physics. In this respect, our solution may be regarded as a self-tuning solution, free of any... | ['2000-11-02'] |
2,056 | ['eng'] | ['Chiang, C M', 'Ho, C L'] | ['Charged particles in external fields as physical examples of quasi-exactly solvable models'] | ['Particle Physics - Theory'] | ['charged particle', 'electromagnetic field, external field', 'potential, oscillator', 'operator, factorization', 'Schroedinger equation', 'Klein-Gordon equation', 'algebra, SL(2)', 'Bethe ansatz'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011005'] | ['We present a unified treatment of three cases of quasi-exactly solvable problems, namely, charged particle moving in Coulomb and magnetic fields, for both the Schr\\"odinger and the Klein-Gordon case, and the relative motion of two charged particles in an external oscillator potential. We show that all these cases ar... | ['2000-11-02'] |
2,057 | ['eng'] | ['Bytsko, A G'] | ['Thermodynamic Bethe ansatz for generalized extensive statistics'] | ['Particle Physics - Theory'] | ['thermodynamics, Bethe ansatz', 'statistics', 'entropy, density', 'particle, relativistic', 'central charge', 'model, Toda', 'scaling, finite size', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011004'] | ['We investigate properties of the entropy density related to a generalized extensive statistics and derive the thermodynamic Bethe ansatz equation for a system of relativistic particles obeying such a statistics. We investigate the conformal limit of such a system. We also derive a generalized Y-system. The Gentile in... | ['2000-11-02'] |
2,058 | ['eng'] | ['Landsteiner, K'] | ['Quasi-Particles in Non-Commutative Field Theory'] | ['Particle Physics - Theory'] | ['talk, Kiev 2000/09/24', 'quantum mechanics', 'gauge field theory, Yang-Mills', 'supersymmetry', 'differential geometry, noncommutative', 'quasiparticle, scalar', 'finite temperature', 'dispersion relations', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011003'] | ['After a short introduction to the UV/IR mixing in non-commutative field theories we review the properties of scalar quasi-particles in non-commutative supersymmetric gauge theories at finite temperature. In particular we discuss the appearance of super-luminous wave propagation.'] | ['2000-11-02'] |
2,059 | ['eng'] | ['Moriyama, S', 'Nakamura, S'] | ['Descent Relation of Tachyon Condensation from Boundary String Field Theory'] | ['Particle Physics - Theory'] | ['field theory, string', 'boundary condition', 'membrane model, D-brane', 'membrane, decay', 'field theory, action', 'tachyon, condensation', 'effective potential', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011002'] | ['We analyze how lower-dimensional bosonic D-branes further decay, using the boundary string field theory. Especially we find that the effective tachyon potential of the lower-dimensional D-brane has the same profile as that of D25-brane.'] | ['2000-11-02'] |
2,060 | ['eng'] | ['Lemes, V E R', 'Sarandy, M S', 'Sorella, S P', 'Tanzini, A', 'Ventura, O S'] | ['The action of N=4 Super Yang-Mills from a chiral primary operator'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry, charge', 'field theory, action', 'symmetry, SU(4) x SU(2) x SU(2)', 'transformation, gauge', 'boundary condition', 'cohomology, Becchi-Rouet-Stora', 'operator, chiral'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0011001'] | ['Using the Vafa-Witten twisted version of N=4 Super Yang-Mills a subset of the supercharges actually relevant for the nonrenormalization properties of the theory is identified. In particular, a relationship between the gauge-fixed action and the chiral primary operator tr(\\phi)^2 is worked out. This result can be und... | ['2000-11-02'] |
2,061 | ['eng'] | ['Kapustin, A A', 'Orlov, D'] | ['Vertex Algebras, Mirror Symmetry, And D-Branes'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'operator, vertex', 'operator, algebra', 'operator product expansion', 'symmetry, mirror', 'membrane model, D-brane', 'field theory, torus', 'supersymmetry', 'homology', 'analytic properties', 'differential forms'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010293'] | ["A vertex algebra is an algebraic counterpart of a two-dimensional conformal field theory. We give a new definition of a vertex algebra which includes chiral algebras as a special case, but allows for fields which are neither meromorphic nor anti-meromorphic. To any complex torus equipped with a flat Kahler metric and... | ['2000-11-01'] |
2,062 | ['eng'] | ['de Wit, B'] | ['M-theory duality and BPS-extended supergravity'] | ['Particle Physics - Theory'] | ['talk, Ann Arbor 2000/07/10', 'M-theory', 'duality', 'supergravity', 'soliton, BPS', 'dimension, >4', 'Kaluza-Klein model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010292'] | ['We discuss toroidal compactifications of maximal supergravity coupled to an extended configuration of BPS states which transform consistently under the U-duality group. Under certain conditions this leads to theories that live in more than eleven spacetime dimensions, with maximal supersymmetry but only partial Loren... | ['2000-11-01'] |
2,063 | ['eng'] | ['Lechner, K', 'Marchetti, P A'] | ['Spin-statistics transmutation in relativistic quantum field theories of dyons'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'dyon, transmutation', 'spin, statistics', 'path integral', 'effective action', 'invariance, gauge', 'symmetry, SO(2)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010291'] | ["We analyse spin and statistics of quantum dyon fields, i.e. fields carrying both electric and magnetic charge, in 3+1 space-time dimensions. It has been shown long time ago that, at the quantum mechanical level, a composite dyon made out of a magnetic pole of charge g and a particle of electric charge e possesses hal... | ['2000-11-01'] |
2,064 | ['eng'] | ['Schrör, B'] | ['Space- and Time-Like Superselection Rules in Conformal Quantum Field Theory'] | ['Particle Physics - Theory'] | ['talk, Siena 2000/06/20', 'axiomatic field theory', 'invariance, conformal', 'superselection rule', 'duality', 'braid group', 'statistics', 'causality', 'n-point function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010290'] | ["In conformally invariant quantum field theories one encounters besides the standard DHR superselection theory based on spacelike (Einstein-causal) commutation relations and their Haag duality another timelike (''Huygens'') based superselection structure. Whereas the DHR theory based on spacelike causality of observab... | ['2000-11-01'] |
2,065 | ['eng'] | ['Kac, V G', 'Troost, J'] | ['The stability of vacua in two-dimensional gauge theory'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'dimension, 2', 'vacuum state, stability', 'Wilson loop', 'correlation function', 'group theory, representation', 'pair production'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010289'] | ['We discuss the stability of vacua in two-dimensional gauge theory for any simple, simply connected gauge group. Making use of the representation of a vacuum in terms of a Wilson line at infinity, we determine which vacua are stable against pair production of heavy matter in the adjoint of the gauge group. By calculat... | ['2000-11-01'] |
2,066 | ['eng'] | ['Esposito, G', 'Kamenshchik, A Yu'] | ['Boundary Effects in One-Loop Supergravity'] | ['Particle Physics - Theory'] | ['supergravity', 'perturbation theory, higher-order', 'boundary condition'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010288'] | ['A brief review is presented of motivations and results in one-loop supergravity on manifolds with boundary, whose consideration is suggested by quantum cosmology.'] | ['2000-11-01'] |
2,067 | ['eng'] | ['Korff, C'] | ['Colour valued scattering matrices from non simply-laced Lie algebras'] | ['Particle Physics - Theory'] | ['S-matrix', 'dimension, 2', 'algebra, Lie', 'analytic properties', 'bootstrap', 'field theory, Toda', 'field theory, affine'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010287'] | ['A new set of exact scattering matrices in 1+1 dimensions is proposed by solving the bootstrap equations. Extending earlier constructions of colour valued scattering matrices this new set has its colour structure associated to non simply-laced Lie algebras. This in particular leads to a coupling of different affine To... | ['2000-11-01'] |
2,068 | ['eng'] | ['Kashima, K'] | ['The M2-brane Solution of Heterotic M-theory with the Gauss-Bonnet $R^{2}$ terms'] | ['Particle Physics - Theory'] | ['M-theory, heterotic', 'gravitation, action', 'derivative, high', 'membrane model, p-brane', 'field equations, solution', 'fluctuation', 'Gauss-Bonnet term', 'effective action', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010286'] | ['We consider the effective action of M-theory compactified on a S^1/Z_2 orbifold with R^2 interaction in the Gauss-Bonnet combination. We derive equations of motion with source terms arising from the Gauss-Bonnet terms and find the M2-brane solution up to order \\kappa^{2/3}. It receives a correction which depends on ... | ['2000-11-01'] |
2,069 | ['eng'] | ['Scarpelli, A P B', 'Sampaio, M', 'Nemes, M C'] | ['Consistency Relations for an Implicit n-dimensional Regularization Scheme'] | ['Particle Physics - Theory'] | ['any-dimensional', 'perturbation theory, higher-order', 'regularization, dimensional', 'quantum electrodynamics', 'fermion', 'violation, CPT', 'symmetry breaking, Lorentz', 'mass generation, topological', 'Schwinger model, chiral', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010285'] | ['We extend an implicit regularization scheme to be applicable in the $n$-dimensional space-time. Within this scheme divergences involving parity violating objects can be consistently treated without recoursing to dimensional continuation. Special attention is paid to differences between integrals of the same degree of... | ['2000-11-01'] |
2,070 | ['eng'] | ['Hatanaka, H', 'Matsumoto, S', 'Ohnishi, K', 'Sakamoto, M'] | ['Vacuum Structure of Twisted Scalar Field Theories on $M^{D-1} \\otimes S^{1}$'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'space, circle', 'dimension, >4', 'boundary condition', 'vacuum state', 'dimensional reduction', 'Kaluza-Klein model', 'quantization', 'effective potential', 'critical phenomena', 'phi**n model, 4', 'symmetry, O(N)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010283'] | ['We study scalar field theories on M^{D-1} \\otimes S^1, which allow to impose twisted boundary conditions for the S^1 direction, in detail and report several interesting properties overlooked so far. One of characteristic features is the appearance of critical radii of the circle S^1. A phase transition can occur at ... | ['2000-11-01'] |
2,071 | ['eng'] | ['Becker, K', 'Becker, M'] | ['Compactifying M-Theory to Four Dimensions'] | ['Particle Physics - Theory'] | ['M-theory', 'supergravity', 'dimension, 11', 'spontaneous compactification', 'dimension, 4', 'field theory, tensor', 'field strength'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010282'] | ['We consider compactifications of ${\\cal M}$-theory to four-dimensional Minkowski space on seven-dimensional non-compact manifolds. These compactifications include a warp factor which is non-constant due to the presence of sources coming from fivebranes wrapping two-dimensional submanifolds of the internal seven-dime... | ['2000-10-31'] |
2,072 | ['eng'] | ['Wendland, K'] | ['Consistency of orbifold conformal field theories on K3'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'orbifold', 'moduli space', 'group theory, lattice', 'algebra, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010281'] | ['We explicitly determine the locations of G orbifold conformal field theories, G=Z_M, M=2,3,4,6, or G=\\hat D_n, n=4,5, within the moduli space M^{K3} of N=(4,4) superconformal field theories associated to K3. This is achieved purely from the known description of the moduli space [AM94] and the requirement of a consis... | ['2000-10-31'] |
2,073 | ['eng'] | ['Cavaglià, M', 'Moniz, P V'] | ['Canonical and quantum FRW cosmological solutions in M-theory'] | ['Particle Physics - Theory'] | ['M-theory', 'effective action', 'field equations, solution', 'Friedman model', 'space-time, Robertson-Walker', 'quantization', 'integrability', 'phase space, Hilbert space', 'quantum cosmology', 'wave function', 'supergravity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010280'] | ["We present the canonical and quantum cosmological investigation of a spatially flat, four-dimensional Friedmann-Robertson-Walker (FRW) model that is derived from the M-theory effective action obtained originally by Billyard, Coley, Lidsey and Nilsson (BCLN). The analysis makes use of two sets of canonical variables, ... | ['2000-10-31'] |
2,074 | ['eng'] | ['Angelantonj, Carlo', 'Sagnotti, A'] | ['Type-I vacua and brane transmutation'] | ['Particle Physics - Theory'] | ['talk, Moscow 2000/06/05', 'membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 9', 'orbifold, magnetic', 'effective action', 'field theory, tensor', 'vacuum state', 'deformation, discrete', 'membrane, transmutation', 'spectra', 'tadpole'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010279'] | ['In a classic paper, Fradkin and Tseytlin showed how magnetic deformations can be introduced in open strings. In this contribution we review some recent work on type-I vacua with magnetised branes and describe the role of additional discrete deformations, related to quantised values of the NS-NS antisymmetric tensor B... | ['2000-10-31'] |
2,075 | ['eng'] | ['Romão, N M'] | ['Quantum Chern-Simons Vortices on a Sphere'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'field theory, scalar', 'nonrelativistic', 'vortex', 'field equations, solution', 'quantization, geometrical', 'moduli space', 'symmetry, SO(3)', 'angular momentum', 'conservation law', 'Hilbert space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010277'] | ['The quantisation of the reduced first-order dynamics of the nonrelativistic model for Chern-Simons vortices introduced by Manton is studied on a sphere of given radius. We perform geometric quantisation on the moduli space of static solutions, using a Kaehler polarisation, to construct the quantum Hilbert space. Its ... | ['2000-10-31'] |
2,076 | ['eng'] | ['Gherghetta, T'] | ['Localizing Gravity on a 3-brane in Higher Dimensions'] | ['Particle Physics - Theory'] | ['talk, Columbus 2000/08/09', 'membrane model, p-brane', 'p-brane, 3', 'dimension, >=6', 'Einstein equation, solution', 'gravitation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010276'] | ["We present metric solutions in six and higher dimensions with a bulk cosmological constant, where gravity is localized on a 3-brane. The corrections to four-dimensional gravity from the bulk continuum modes are power-law suppressed. Furthermore, the introduction of a bulk ``hedgehog'' magnetic field leads to a regula... | ['2000-10-31'] |
2,077 | ['eng'] | ['Santambrogio, A', 'Zanon, D'] | ['One-loop four-point function in noncommutative N=4 Yang-Mills theory'] | ['Particle Physics - Theory'] | ['gauge field theory, U(N)', 'supersymmetry, superspace', 'differential geometry, noncommutative', 'n-point function, 4', 'perturbation theory, higher-order', 'effective action', 'background field'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010275'] | ['We compute the one-loop four-point function in {\\cal N}=4 supersymmetric Yang-Mills theory with gauge group U(N). We perform the calculation in {\\cal N}=1 superspace using the background field method and obtain the complete off-shell contributions to the effective action from planar and non planar supergraphs. In t... | ['2000-10-31'] |
2,078 | ['eng'] | ['Drukker, N', 'Gross, David J'] | ['An Exact Prediction of N=4 SUSYM Theory for String Theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'supersymmetry', 'Wilson loop', 'expansion 1/N', 'soliton, BPS', 'perturbation theory, higher-order'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010274'] | ["We show that the expectation value of a circular BPS-Wilson loop in N=4 SUSYM can be calculated exactly, to all orders in a 1/N expansion and to all orders in g^2 N. Using the AdS/CFT duality, this result yields a prediction of the value of the string amplitude with a circular boundary to all orders in alpha' and to ... | ['2000-10-31'] |
2,079 | ['eng'] | ['Kallosh, R', 'Mohaupt, T', 'Shmakova, M'] | ['Excision of Singularities by Stringy Domain Walls'] | ['Particle Physics - Theory'] | ['orbifold, S(1)/Z(2)', 'domain wall', 'supersymmetry', 'supergravity', 'field equations, solution', 'potential, Kaehler', 'moduli space', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010271'] | ['We study supersymmetric domain walls on S_1/Z_2 orbifolds. The supergravity solutions in the bulk are given by the attractor equation associated with Calabi-Yau spaces and have a naked space-time singularity at some |y_s|. We are looking for possibilities to cut off this singularity with the second wall by a stringy ... | ['2000-10-31'] |
2,080 | ['eng'] | ['Lazaroiu, C I'] | ['On the structure of open-closed topological field theory in two dimensions'] | ['Particle Physics - Theory'] | ['field theory, topological', 'dimension, 2', 'string, open', 'string, closed', 'Riemann surfaces', 'invariance, modular', 'field theory, conformal', 'phase space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010269'] | ["I discuss the general formalism of two-dimensional topological field theories defined on open-closed oriented Riemann surfaces, starting from an extension of Segal's geometric axioms. Exploiting the topological sewing constraints allows for the identification of the algebraic structure governing such systems. I give ... | ['2000-10-31'] |
2,081 | ['eng'] | ['Chamseddine, A H'] | ['Complex Gravity and Noncommutative Geometry'] | ['Particle Physics - Theory'] | ['talk, Ann Arbor 2000/07/10', 'string model, open', 'membrane model, D-brane', 'field theory, tensor', 'background field', 'differential geometry, noncommutative', 'field theory, action', 'invariance, gauge', 'gravitation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010268'] | ['The presence of a constant background antisymmetric tensor for open strings or D-branes forces the space-time coordinates to be noncommutative. An immediate consequence of this is that all fields get complexified. By applying this idea to gravity one discovers that the metric becomes complex. Complex gravity is const... | ['2000-10-31'] |
2,082 | ['eng'] | ['Bekaert, X', 'Cucu, S'] | ['Antifield BRST quantization of duality-symmetric Maxwell theory'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'quantization', 'path integral', 'dependence, gauge', 'transformation, Becchi-Rouet-Stora'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010266'] | ['We perform the antifield BRST quantization of duality-symmetric Maxwell theory and show explicitly the quantum equivalence of the different formulations (covariant and non-covariant). The non-covariant gauge-fixed action is used in the computation of propagators for this model.'] | ['2000-10-31'] |
2,083 | ['eng'] | ['Chernodub, M N', 'Gubarev, F V', 'Polikarpov, M I', 'Zakharov, V I'] | ['Towards Abelian-like formulation of the dual gluodynamics'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'lattice field theory, continuum limit', 'magnetic monopole, condensation', 'path integral', 'duality', 'string model', 'symmetry, Z(2)', 'radiative correction', 'Higgs model, abelian'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010265'] | ['We consider gluodynamics in case when both color and magnetic charges are present. We discuss first short distance physics, where only the fundamental |Q|=1 monopoles introduced via the `t Hooft loop can be considered consistently. We show that at short distances the external monopoles interact as pure Abelian object... | ['2000-10-31'] |
2,084 | ['eng'] | ['Polychronakos, A P'] | ['Noncommutative Chern-Simons terms and the noncommutative vacuum'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'any-dimensional', 'differential geometry, noncommutative', 'Chern-Simons term', 'vacuum state'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010264'] | ['It is pointed out that the space noncommutativity parameters $theta^{\\mu \\nu}$ in noncommutative gauge theory can be considered as a set of superselection parameters, in analogy with the theta-angle in ordinary gauge theories. As such, they do not need to enter explicitly into the action. A simple generic formula i... | ['2000-10-30'] |
2,085 | ['eng'] | ['Cadoni, M', 'Carta, P'] | ['Open Strings, Holography and Stochastic Processes'] | ['Particle Physics - Theory'] | ['string model, open', 'operator, vortex', 'operator, algebra', 'holography', 'mass spectrum', 'mechanics', 'expansion 1/N', 'field theory, conformal', 'mathematical methods, stochastic'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010263'] | ['We use the correspondence between string states and local operators on the world-sheet boundary defined by vertex operators in open string theory to put in correspondence, holographically, the bosonic open string with the large N limit of a mechanical system living on the world-sheet boundary. We give a natural inter... | ['2000-10-30'] |
2,086 | ['eng'] | ['Castro-Alvaredo, O A', 'Fring, A'] | ['Decoupling the $SU(N)_{2}$-homogeneous Sine-Gordon model'] | ['Particle Physics - Theory'] | ['sine-Gordon model', 'dimension, 2', 'coset space, SU(N)/U(1)**M', 'integrability', 'correlation function', 'S-matrix', 'form factor', 'renormalization group, transformation', 'operator, vortex', 'operator, algebra', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010262'] | ['We provide a systematic construction for all n-particle form factors of the SU(N)_2/U(1)^{N-1}-homogeneous Sine-Gordon model in terms of general determinant formulae for a huge class of local operators. The ultraviolet limit is carried out and the corresponding Virasoro central charge together with the conformal dime... | ['2000-10-30'] |
2,087 | ['eng'] | ['Tsou, S T'] | ['Yang-Mills duality as origin of generations, quark mixing and neutrino oscillations'] | ['Particle Physics - Theory'] | ['talk, Hong Kong 2000/07/31', 'gauge field theory, SU(3)', 'duality', 'family', 'quark, interference', 'neutrino, oscillation', 'symmetry breaking', 'mass, hierarchy'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010261'] | ['The origin of fermion generations is one of the great mysteries in particle physics. We consider here a possible solution within the Standard Model framework based on a nonabelian generalization of electric-magnetic duality. First, nonabelian duality says that dual to the colour (electric) symmetry SU(3), there is a ... | ['2000-10-30'] |
2,088 | ['eng'] | ['Laperashvili, L V', 'Nielsen, Holger Bech'] | ['Phase Transition in the Higgs Model of Scalar Fields with Electric and Magnetic Charges'] | ['Particle Physics - Theory'] | ['Higgs model', 'effective potential', 'renormalization group', 'critical phenomena', 'monopole, condensation', 'gauge field theory, U(1)', 'duality', 'vortex'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010260'] | ['Using a one-loop renormalization group improvement for the effective potential in the Higgs model of electrodynamics with electrically and magnetically charged scalar fields, we argue for the existence of a triple (critical) point in the phase diagram ($\\lambda_{run}, g_{run}^4$), where $\\lambda_{run}$ is the renor... | ['2000-10-30'] |
2,089 | ['eng'] | ['Francesco, P D', 'Guitter, E', 'Kristjansen, C F'] | ['Generalized Lorentzian Gravity in 1+1D and the Calogero Hamiltonian'] | ['Particle Physics - Theory'] | ['gravitation', 'dimension, 2', 'lattice field theory', 'Hamiltonian formalism', 'space-time, triangulation', 'scaling', 'transfer matrix', 'path integral', 'integrability', 'renormalization group', 'n-point function'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010259'] | ['We introduce and solve a generalized 1+1D Lorentzian gravity model in which a certain subclass of baby-universes is allowed, the occurrence of these being governed by a coupling constant \\beta. Combining transfer matrix-, saddle point- and path integral techniques we show that for \\beta<1 it is possible to take a c... | ['2000-10-30'] |
2,090 | ['eng'] | ['Madden, R'] | ['Numerical Black Hole Interiors and String Cosmology Initial Conditions'] | ['Particle Physics - Theory'] | ['black hole', 'astrophysics, string', 'boundary condition', 'gravitation', 'dilaton', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010258'] | ["Recent work has proposed the principle of `asymptotic past triviality' to characterize the initial state in the pre-big bang scenario of string cosmology, that it is a generic perturbative solution of the low-energy effective action. Among the more generic sets of solutions which is simple enough to investigate thoro... | ['2000-10-30'] |
2,091 | ['eng'] | ['Gomes, J F', 'Gueuvoghlanian, E P', 'Sotkov, G M', 'Zimerman, A H'] | ['Classical Integrability of Non Abelian Affine Toda Models'] | ['Particle Physics - Theory'] | ['talk, Dubna 2000/07/31', 'field theory, Toda', 'field theory, affine', 'nonabelian', 'dimension, 2', 'Wess-Zumino-Witten model', 'gauge field theory', 'vacuum state', 'integrability', 'R-matrix', 'soliton', 'charge, electric', 'charge, topological'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010257'] | ['A class of non abelian affine Toda models is constructed in terms of the axial and vector gauged WZW model. It is shown that the multivacua structure of the potential together with non abelian nature of the zero grade subalgebra allows soliton solutions with non trivial electric and topological charges. Their zero cu... | ['2000-10-30'] |
2,092 | ['eng'] | ['Dhar, A', 'Kitazawa, Y'] | ['Wilson Loops in Strongly Coupled Noncommutative Gauge Theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'differential geometry, noncommutative', 'strong coupling', 'Wilson loop', 'duality', 'supergravity', 'string tension'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010256'] | ['We discuss Wilson loop averages in 4-dimensional non-commutative superYang-Mills theory using the dual supergravity description. We find that they exhibit a crossover from Coulomb type of behaviour for large loops, for which non-commutativity is unimportant, to area law for small loops, for which non-commutativity ef... | ['2000-10-30'] |
2,093 | ['eng'] | ['Ketov, S V'] | ['Gravitational dressing of D-instantons'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry, multiplet', 'spontaneous compactification, Calabi-Yau', 'space, Kaehler', 'space, quaternion', 'instanton', 'moduli space', 'correction, nonperturbative'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010255'] | ['The non-perturbative D-instanton corrections to the universal hypermultiplet moduli space metric in the type-IIA superstring compactification on a Calabi-Yau threefold of dim H^{2,1}=0 are investigated in the presence of gravity. These corrections come from multiple wrapping of the BPS (Euclidean) membranes around su... | ['2000-10-30'] |
2,094 | ['eng'] | ['Kawamoto, N', 'Tsukioka, T', 'Umetsu, H'] | ['Generalized Gauge Theories and Weinberg-Salam Model with Dirac-Kähler Fermions'] | ['Particle Physics - Theory'] | ['Salam-Weinberg model', 'gauge field theory, SU(2|1)', 'Chern-Simons term', 'fermion', 'differential forms, Kaehler', 'coupling, Yukawa', 'field theory, topological', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010254'] | ['We extend previously proposed generalized gauge theory formulation of Chern-Simons type and topological Yang-Mills type actions into Yang-Mills type actions. We formulate gauge fields and Dirac-K\\"ahler matter fermions by all degrees of differential forms. The simplest version of the model which includes only zero a... | ['2000-10-30'] |
2,095 | ['eng'] | ['Bousso, R'] | ['Positive vacuum energy and the N-bound'] | ['Particle Physics - Theory'] | ['entropy', 'astrophysics, fundamental constant', 'energy, vacuum state', 'space-time, de Sitter', 'causality'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010252'] | ["We argue that the total observable entropy is bounded by the inverse of the cosmological constant. This holds for all space-times with a positive cosmological constant, including cosmologies dominated by ordinary matter, and recollapsing universes. The argument involves intermediate steps which may be of interest in ... | ['2000-10-30'] |
2,096 | ['eng'] | ['Hashimoto, K'] | ['Fluxons and Exact BPS Solitons in Non-Commutative Gauge Theory'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'Higgs model', 'differential geometry, noncommutative', 'soliton, BPS', 'fluxon', 'membrane model, D-brane', 'membrane model, p-brane', 'p-brane, 3', 'string model', 'Seiberg-Witten model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010251'] | ['We show that the fluxon solution of the non-commutative gauge theory and its variations are obtained by the soliton generation method recently given by J. A. Harvey, P. Kraus and F. Larsen [hep-th/0010060]. Although this method generally produces non-BPS solutions of equations of motion, the solutions we obtained are... | ['2000-10-27'] |
2,097 | ['eng'] | ['Nussinov, S'] | ['QCD Inequalities, Large $N_{C}$ and $\\pi\\pi$ Scattering Lengths'] | ['Particle Physics - Theory'] | ['quantum chromodynamics', 'flavor, 4', 'pi pi, elastic scattering', 'pi pi, scattering length', 'flavor, 2', 'expansion 1/N, color', 'threshold', 'two-point function', 'exchange, multigluon'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010250'] | ["In this short note we show that (I) in a QCD-like theory with four (rather than two) degenerate flavors $ud u'd'$, the $\\pi\\pi'$ scattering length is positive (attractive); and (II) in QCD with only two (u,d) degenerate flavors the I=2 (say, $\\pi^+\\pi^+$ hadronic) scattering length is, in the large $N_C$ limit, r... | ['2000-10-27'] |
2,098 | ['eng'] | ['Nussinov, S'] | ['On Some Positivity Properties of the Interquark Potential in QCD'] | ['Particle Physics - Theory'] | ['quantum chromodynamics', 'quark, heavy', 'quark antiquark, potential', 'Wilson loop', 'path integral, Euclidean', 'baryon, mass'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010249'] | ['We prove that the Fourier transform of the exponential $e^{-\\b V(R)}$ of the {\\bf static} interquark potential in QCD is positive. It has been shown by Eliott Lieb some time ago that this property allows in the same limit of static spin independent potential proving certain mass relation between baryons with differ... | ['2000-10-27'] |
2,099 | ['eng'] | ['Metsaev, R R'] | ['Light-cone approach to eleven dimensional supergravity'] | ['Particle Physics - Theory'] | ['talk, Moscow 2000/06/05', 'supergravity', 'dimension, 11', 'supersymmetry, transformation', 'light cone gauge', 'algebra, Poincare'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=0010248'] | ['Manifestly supersymmetric formulation of eleven dimensional supergravity in the framework of light-cone approach is discussed.'] | ['2000-10-27'] |
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