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 |
|---|---|---|---|---|---|---|---|---|
18,000 | ['eng'] | ['Bonora, L', 'Xiong, C S'] | ['Matrix models without scaling limit'] | ['Particle Physics - Theory'] | ['matrix model', 'Korteweg-de Vries equation, hierarchy', 'lattice field theory, continuum limit', 'scaling', 'field theory, topological'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209041'] | ['In the context of hermitean one--matrix models we show that the emergence of the NLS hierarchy and of its reduction, the KdV hierarchy, is an exact result of the lattice characterizing the matrix model. Said otherwise, we are not obliged to take a continuum limit to find these hierarchies. We interpret this result as... | ['2002-07-01'] |
18,001 | ['eng'] | ['Govindarajan, S'] | ['On Physical States in c<1 String Theory'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'central charge, <1', 'cohomology, Becchi-Rouet-Stora', 'phase space', 'correlation function', 'gravitation', 'field theory, Liouville'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209051'] | ['The BRST cohomology analysis of Lian and Zuckerman leads to physical states at all ghost number for $c<1$ matter coupled to Liouville gravity. We show how these states are related to states at ghost numbers zero(pure vertex operator states -- DK states) and ghost number one(ring elements) by means of descent equation... | ['2002-07-01'] |
18,002 | ['eng'] | ['Gasperini, M', 'Maharana, J', 'Veneziano, Gabriele'] | ['Boosting Away Singularities from Conformal String Backgrounds'] | ['Particle Physics - Theory'] | ['astrophysics, string', 'field theory, conformal', 'black hole', 'any-dimensional', 'symmetry, O(N,N)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209052'] | ['Generalizing our previous work, we show how $O(d,d)$ transformations can be used to "boost away" in new dimensions the physical singularities that occur generically in cosmological and/or black-hole string backgrounds. As an example, we show how a recent model by Nappi and Witten can be made singularity-free via $O(3... | ['2002-07-01'] |
18,003 | ['eng'] | ['Perry, M J', 'Teo, E'] | ['BRS and Anti-BRS Symmetry in Topological Yang--Mills Theory'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'field theory, topological', 'invariance, Becchi-Rouet-Stora', 'supersymmetry, superspace', 'symmetry, SU(3)', 'differential forms'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209072'] | ['We incorporate both BRS symmetry and anti-BRS symmetry into the quantisation of topological Yang--Mills theory. This refines previous treatments which consider only the BRS symmetry. Our formalism brings out very clearly the geometrical meaning of topological Yang--Mills theory in terms of connections and curvatures ... | ['2002-07-01'] |
18,004 | ['eng'] | ['Bergshoeff, E A', 'Boonstra, H J', 'De Roo, M'] | ['Realisations of $W_3$ Symmetry'] | ['Particle Physics - Theory'] | ['algebra, W(3)', 'algebra, representation', 'field theory, scalar', 'operator product expansion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209065'] | ['We perform a systematic investigation of free-scalar realisations of the Za\\-mo\\-lod\\-chi\\-kov $W_3$ algebra in which the operator product of two spin-three generators contains a non-zero operator of spin four which has vanishing norm. This generalises earlier work where such an operator was required to be absent... | ['2002-07-01'] |
18,005 | ['eng'] | ['Preskill, J'] | ['Do Black Holes Destroy Information?'] | ['Particle Physics - Theory'] | ['talk', 'black hole, hair', 'entropy', 'radiation, Hawking', 'conservation law', 'information theory'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209058'] | ['I review the information loss paradox that was first formulated by Hawking, and discuss possible ways of resolving it. All proposed solutions have serious drawbacks. I conclude that the information loss paradox may well presage a revolution in fundamental physics. (To appear in the proceedings of the International Sy... | ['2002-07-01'] |
18,006 | ['eng'] | ['Jevicki, A', 'Rodrigues, J P', 'Van Tonder, A J'] | ['Scattering States and Symmetries in the Matrix Model and Two Dimensional String Theory'] | ['Particle Physics - Theory'] | ['matrix model, linear', 'string model', 'dimension, 2', 'scattering amplitude', 'phase space', 'Hamiltonian formalism', 'field theory, collective', 'symmetry, W(infinity)', 'Ward identity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209057'] | ['We study the correspondence between the linear matrix model and the interacting nonlinear string theory. Starting from the simple matrix harmonic oscillator states, we derive in a direct way scattering amplitudes of 2-dimensional strings, exhibiting the nonlinear equation generating arbitrary N-point tree amplitudes.... | ['2002-07-01'] |
18,007 | ['eng'] | ['Kleppe, G'] | ['Regularization Dependence of Quadratic Divergence Cancellations, VPI-IHEP-92/10'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'fermion', 'coupling, Yukawa', 'Yukawa, coupling', 'Salam-Weinberg model', 'perturbation theory, higher-order', 'regularization, nonlocal', 'quark, truth'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209124'] | ['Certain results related to the cancellation of quadratic divergences, which had been obtained using dimensional reduction, are reconsidered using a nonlocal regulator. The results obtained are shown to depend strongly on the regulator. Specifically, it is shown that a certain result of Al-sarhi, Jack, and Jones no lo... | ['2002-07-01'] |
18,008 | ['eng'] | ['Wang, Z H', 'Guo, H Y'] | ['Intrinsic Vertex Regularization and Renormalization in $\\phi^4$ Field Theory'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'n-point function', 'perturbation theory, higher-order', 'regularization', 'renormalization'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209126'] | ['Based upon the intrinsic relation between the divergent lower point functions and the convergent higher point ones in the renormalizable quantum field theories, we propose a new method for regularization and renormalization in QFT. As an example, we renormalize the $\\phi^{4}$ theory at the one loop order by means of... | ['2002-07-01'] |
18,009 | ['eng'] | ['Kleppe, G'] | ['Transformation Properties of Linearized de Sitter Gravity Solutions'] | ['Particle Physics - Theory'] | ['quantum gravity', 'space-time, de Sitter', 'dependence, gauge', 'transformation, gauge'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209121'] | ["The effect of de Sitter transformations on Tsamis and Woodard's solutions to the linearized gauge fixed equations of motion of quantum gravity in a de Sitter space background is worked out explicitly. It is shown that these solutions are closed under the transformations of the de Sitter group. To do this it is necess... | ['2002-07-01'] |
18,010 | ['eng'] | ['Brustein, Ram', 'Ovrut, B'] | ['Stringy Instantons'] | ['Particle Physics - Theory'] | ['matrix model', 'dimension, 1', 'field theory, collective', 'invariance, Lorentz', 'field theory, instanton', 'effective action', 'string model', 'analytic properties'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209045'] | ['A canonical Lorentz invariant field theory extension of collective field theory of d=1 matrix models is presented. We show that the low density, discrete, sector of collective field theory includes single eigenvalue Euclidean instantons which tunnel between different vacua of the extended theory. These "stringy" inst... | ['2002-07-01'] |
18,011 | ['eng'] | ['Eholzer, W', 'Honecker, A', 'Hübel, R'] | ['Representations of $N=1$ Extended Superconformal Algebras with Two Generators'] | ['Particle Physics - Theory'] | ['algebra, W(N)', 'supersymmetry', 'algebra, representation', 'field theory, conformal', 'partition function', 'invariance, modular'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209030'] | ["In this paper we consider the representation theory of N=1 Super-W-algebras with two generators for conformal dimension of the additional superprimary field between two and six. In the superminimal case our results coincide with the expectation from the ADE-classification. For the parabolic algebras we find a finite ... | ['2002-07-01'] |
18,012 | ['eng'] | ['Tseytlin, Arkady A'] | ['String vacuum backgrounds with covariantly constant null Killing vector and 2d quantum gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'space-time', 'dimension, 2', 'string model', 'vacuum state', 'invariance, conformal'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209023'] | ['We consider a $2d$ sigma model with a $2+N$ - dimensional Minkowski signature target space metric having a covariantly constant null Killing vector. We study solutions of the conformal invariance conditions in $2+N$ dimensions and find that generic solutions can be represented in terms of the RG flow in $N$ - dimensi... | ['2002-07-01'] |
18,013 | ['eng'] | ['Brustein, Ram', 'Ovrut, B'] | ['Non-perturbative interactions in string theory'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'effect, nonperturbative', 'effective action', 'matrix model', 'dimension, 1', 'symmetry breaking'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209033'] | ['New non-perturbative interactions in the effective action of two dimensional string theory are described. These interactions are due to ``stringy" instantons'] | ['2002-07-01'] |
18,014 | ['eng'] | ['Honecker, A'] | ['A Note on the Algebraic Evaluation of Correlators in Local Chiral Conformal Field Theory'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'algebra, Virasoro', 'correlation function', 'supersymmetry', 'programming'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209029'] | ['We comment on a program designed for the study of local chiral algebras and their representations in 2D conformal field theory. Based on the algebraic approach described by W. Nahm, this program efficiently calculates arbitrary n-point functions of these algebras. The program is designed such that calculations involv... | ['2002-07-01'] |
18,015 | ['eng'] | ['Tanimura, S'] | ["Relativistic Generalization and Extension to the Non-Abelian Gauge Theory of Feynman's Proof of the Maxwell Equations"] | ['Particle Physics - Theory'] | ['quantum mechanics', 'operator, algebra', 'commutation relations', 'Maxwell equation', 'gauge field theory, Yang-Mills', 'relativistic', 'approximation, nonrelativistic', 'field theory, scalar', 'gravitation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9306066'] | ["R.P. Feynman showed F.J. Dyson a proof of the Lorentz force law and the homogeneous Maxwell equations, which he obtained starting from Newton's law of motion and the commutation relations between position and velocity for a single nonrelativistic particle. We formulate both a special relativistic and a general relati... | ['2002-07-08'] |
18,016 | ['eng'] | ['Leznov, A N'] | ['Bäcklund transformation for integrable systems'] | ['General Theoretical Physics'] | ['differential equations, nonlinear', 'differential equations, soliton', 'integrability', 'Baecklund transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9404032'] | ['We establish an explicit form of the Bäcklund transformation for the most known integrable systems.'] | ['1994-04-07'] |
18,017 | ['eng'] | ['Abada, A', 'Bougourzi, A H', 'El-Gradechi, A M'] | ['Deformation of the Wakimoto construction'] | ['Particle Physics - Theory'] | ['quantum group, SU(2)', 'current algebra', 'fermion, parastatistics', 'algebra, deformation', 'operator, vertex', 'spin'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209009'] | ['We present the extension of the Wakimoto construction to the $su(2)_k$ quantum current algebra and its associated $Z_k$ quantum parafermion algebra. This construction is achieved in terms of various deformations of three classical free boson fields. We also give the vertex operators corresponding to the quantum spin-... | ['2002-07-01'] |
18,018 | ['eng'] | ['Chen, W', 'Semenoff, Gordon W', 'Wu, Y S'] | ['Two-Loop Analysis of Non-abelian Chern-Simons Theory'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'Chern-Simons term', 'dimension, 3', 'n-point function', 'perturbation theory, higher-order', 'regularization, dimensional', 'renormalization', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209005'] | ['Perturbative renormalization of a non-Abelian Chern-Simons gauge theory is examined. It is demonstrated by explicit calculation that, in the pure Chern-Simons theory, the beta-function for the coefficient of the Chern-Simons term vanishes to three loop order. Both dimensional regularization and regularization by intr... | ['2002-07-01'] |
18,019 | ['eng'] | ['Lowe, D A'] | ['Semiclassical Approach to Black Hole Evaporation'] | ['Particle Physics - Theory'] | ['black hole', 'approximation, quasiclassical', 'dimension, 2', 'gravitation, dilaton', 'shock waves', 'dimension, 4', 'dimensional reduction', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209008'] | ['Black hole evaporation may lead to massive or massless remnants, or naked singularities. This paper investigates this process in the context of two quite different two dimensional black hole models. The first is the original CGHS model, the second is another two dimensional dilaton-gravity model, but with properties ... | ['2002-07-01'] |
18,020 | ['eng'] | ['Bytsenko, A A', 'Elizalde, E', 'Zerbini, S'] | ['Laurent Series Representation for the Open Superstring Free Energy'] | ['Particle Physics - Theory'] | ['string model, open', 'supersymmetry', 'finite temperature', 'energy', 'perturbation theory, higher-order', 'analytic properties'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209021'] | ['Open superstrings at non-zero temperature are considered. A novel representation for the free energy (Laurent series representation) is constructed. It is shown that the Hagedorn temperature arises in this formalism as the convergence condition (specifically, the radius of convergence) of the Laurent series.'] | ['2002-07-01'] |
18,021 | ['eng'] | ['Antoniadis, Ignatios', 'Benakli, Karim'] | ['Fractionally Charged Particles and Supersymmetry Breaking in 4D Strings'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 4', 'charge, fractional', 'supersymmetry, dynamically broken', 'sparticle, mass spectrum', 'mass spectrum, sparticle', 'sparticle, condensation', 'gauge field theory', 'unified field theory', 'model, composite', 'postulated particle, crypton', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209020'] | ['Four-dimensional string theories predict in general the existence of light exotic particles with fractional electric charges. Such particles could escape present observations if they are confined by a gauge group of the "hidden" sector into integrally charged states. It is conceivable that the same gauge group is als... | ['2002-07-01'] |
18,022 | ['eng'] | ['Ellis, Jonathan Richard', 'Mavromatos, Nikolaos E', 'Nanopoulos, Dimitri V'] | ['The String Universe'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'fermion', 'dimension, 3', 'supersymmetry', 'renormalization group', 'black hole', 'Hall effect', 'superconducting', 'temperature, high', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209013'] | ['Our answer is the latter. Space-time singularities, including the initial one, are described by world-sheet topological Abelian gauge theories with a Chern-Simons term. Their effective $N=2$ supersymmetry provides an initial fixed point where the Bogomolny bound is saturated on the world-sheet, corresponding to an ex... | ['2002-07-01'] |
18,023 | ['eng'] | ['Wu, Y S', 'Zhu, C J'] | ['The Complete Structure of the Cohomology Ring and Associated Symmetries in $D=2$ String Theory'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 2', 'cohomology, Becchi-Rouet-Stora', 'algebra, chiral'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209011'] | ['We determine explicitly all structure constants of the whole chiral BRST cohomology ring in $D=2$ string theory including both the discrete states and tachyon states. This is made possible by establishing several identities for Schur polynomials with operator argument and exploring associativity. Furthermore we find ... | ['2002-07-01'] |
18,024 | ['eng'] | ['Aldazabal, G', 'Bonini, M', 'Maldacena, J M'] | ['Factorization and Discrete States in C=1 Superliouville Theory'] | ['Particle Physics - Theory'] | ['field theory, Liouville', 'scattering amplitude, factorization', 'factorization, scattering amplitude', 'supergravity', 'dimension, 2', 'operator, vertex', 'transformation, gauge', 'multiplet, SU(2)', 'SU(2), multiplet', 'operator product expansion'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209010'] | ['We study the discrete state structure of $\\hat c=1$ superconformal matter coupled to 2-D supergravity. Factorization properties of scattering amplitudes are used to identify these states and to construct the corresponding vertex operators. For both Neveu-Schwarz and Ramond sectors these states are shown to be organi... | ['2002-07-01'] |
18,025 | ['eng'] | ['Iso, S', 'Karabali, Dimitra', 'Sakita, Bunji'] | ['Fermions in the Lowest Landau Level'] | ['Particle Physics - Theory'] | ['fermion, nonrelativistic', 'fermion, massless', 'massless, fermion', 'dimension, 3', 'magnetic field, external field', 'bosonization', 'algebra, W(infinity)', 'boson, chiral', 'approximation, droplet', 'energy levels', 'string model', 'central charge, <1'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209003'] | ['We present field theoretical descriptions of massless (2+1) dimensional nonrelativistic fermions in an external magnetic field, in terms of a fermionic and bosonic second quantized language. An infinite dimensional algebra, $W_{\\infty}$, appears as the algebra of unitary transformations which preserve the lowest Lan... | ['2002-07-01'] |
18,026 | ['eng'] | ["Figueroa-O'Farrill, J M", 'Ramos, E', 'Stanciu, S'] | ['A geometrical interpretation of classical W-transformations'] | ['Particle Physics - Theory'] | ['algebra, W(N)', 'geometry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209002'] | ['We give a simple geometrical interpretation of classical $\\W$-transformations as deformations of constant energy surfaces by canonical transformations on a two-dimensional phase space.'] | ['2002-07-01'] |
18,027 | ['eng'] | ['Barnich, G', 'Constantinescu, R', 'Grégoire, P'] | ['BRST-anti-BRST Antifield formalism'] | ['Particle Physics - Theory'] | ['invariance, Becchi-Rouet-Stora', 'Lagrangian formalism', 'gauge field theory, antifield', 'Freedman-Townsend model', 'gauge fixing'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209007'] | ['The general BRST-anti-BRST construction in the framework of the antifield-antibracket formalism is illustrated in the case of the Freedmann-Townsend model.'] | ['2002-07-01'] |
18,028 | ['eng'] | ['Inami, T', 'Odake, S'] | ['Continuum Limit of Spin-1 Chain (the only change is added references)'] | ['Particle Physics - Theory'] | ['statistical mechanics', 'model, spin', 'spin, model', 'Hamiltonian formalism', 'bosonization', 'continuum limit', 'sine-Gordon model', 'supersymmetry', 'quantum group'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209019'] | ['We study the continuum limit of the spin-1 chain in the non-Abelian bosonization approach of Affleck and show that the Hamiltonian of integrable spin-1 chain yields the Lagrangian of supersymmetric sine-Gordon model in the zero lattice spacing limit. We also show that the quantum group generators of the spin-1 chain ... | ['2002-07-01'] |
18,029 | ['eng'] | ['Kato, A', 'Quano, Y H', 'Shiraishi, J'] | ['Free Boson Representation of $q$-Vertex Operators and their Correlation Functions'] | ['Particle Physics - Theory'] | ['quantum group, SL(2)', 'quantum group, representation', 'operator, vertex', 'bosonization', 'field theory, conformal', 'n-point function', 'analytic properties'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209015'] | ['A bosonization scheme of the $q$-vertex operators of $\\uqa$ for arbitrary level is obtained. They act as intertwiners among the highest weight modules constructed in a bosonic Fock space. An integral formula is proposed for $N$-point functions and explicit calculation for two-point function is presented.'] | ['2002-07-01'] |
18,030 | ['eng'] | ['Mizoguchi, S'] | ['Rational Conformal Field Theory and Multi-Wormhole Partition Function in 3-dimensional Gravity'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'field theory, rational', 'gravitation', 'dimension, 3', 'Wess-Zumino-Witten model', 'symmetry, SU(2)', 'field theory, Euclidean', 'partition function', 'Chern-Simons term', 'astrophysics, fundamental constant', 'wormhole'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209061'] | ["We study the Turaev-Viro invariant as the Euclidean Chern-Simons-Witten gravity partition function with positive cosmological constant. After explaining why it can be identified as the partition function of 3-dimensional gravity, we show that the initial data of the TV invariant can be constructed from the duality da... | ['2002-07-01'] |
18,031 | ['eng'] | ['Majid, S'] | ['Infinite Braided Tensor Products and 2-D quantum Gravity'] | ['Particle Physics - Theory'] | ['talk', 'quantum gravity', 'dimension, 2', 'braid group, representation', 'operator, algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9210023'] | ['Braided tensor products have been introduced by the author as a systematic way of making two quantum-group-covariant systems interact in a covariant way, and used in the theory of braided groups. Here we study infinite braided tensor products of the quantum plane (or other constant Zamolodchikov algebra). It turns ou... | ['2002-07-01'] |
18,032 | ['eng'] | ['Polchinski, Joseph'] | ['Strings and QCD?'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'quantum chromodynamics', 'Regge poles', 'Wilson loop', 'expansion, strong coupling', 'strong coupling, expansion', 'lattice field theory', 'gauge field theory', 'dimension, 2', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9210045'] | ['Is large-$N$ QCD equivalent to a string theory? Maybe, maybe not. I review various attempts to answer the question.'] | ['2002-07-01'] |
18,033 | ['eng'] | ['Curtright, T L', 'Ghandour, G I'] | ['Using functional methods to compute quantum effects in the Liouville model'] | ['Particle Physics - Theory'] | ['talk', 'field theory, Liouville', 'path integral', 'Schroedinger equation', 'wave function', 'space-time', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9503080'] | ['We use time-independent canonical transformation methods to discuss the energy eigenfunctions for the simple linear potential, pedagogically setting the stage for some field theory calculations to follow. We then discuss the Schr\\"odinger wave-functional method of calculating correlation functions for Liouville fiel... | ['1995-03-13'] |
18,034 | ['eng'] | ['Mohaupt, T'] | ['Critical Wilson Lines in Toroidal Compactifications of Heteroric Strings'] | ['Particle Physics - Theory'] | ['thesis', 'string model, heterotic', 'spontaneous compactification, torus', 'background field', 'symmetry breaking, Wilson loop', 'algebra, Lie', 'algebra, representation'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209101'] | ['Critical values of Wilson lines and general background fields for toroidal compactifications of heterotic string theories are constructed systematically using Dynkin diagrams.'] | ['2002-07-01'] |
18,035 | ['eng'] | ['Menotti, P', 'Modanese, G', 'Seminara, D'] | ['The radial gauge propagators in quantum gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'gauge field theory, any-dimensional', 'radial gauge', 'propagator', 'Lagrangian formalism', 'path integral', 'Wilson loop'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9209028'] | ['We give a general procedure for extracting the propagators in gauge theories in presence of a sharp gauge fixing and we apply it to derive the propagators in quantum gravity in the radial gauge, both in the first and in the second order formalism in any space-time dimension. In the three dimensional case such propaga... | ['2002-07-01'] |
18,036 | ['eng'] | ['Sitarz, A'] | ['Noncommutative Geometry and Gauge Theories on Discrete Groups'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'group theory, discrete', 'differential geometry, noncommutative', 'field theory, action'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9210098'] | ['We build and investigate a pure gauge theory on arbitrary discrete groups. A systematic approach to the construction of the differential calculus is presented. We discuss the metric properties of the models and introduce the action functionals for unitary gauge theories. A detailed analysis of two simple models based... | ['2002-07-01'] |
18,037 | ['eng'] | ['Kleinert, H', 'Neu, J', 'Schulte-Frohlinde, V'] | ['Five-loop renormalization group functions of O(n)-symmetric $\\phi^{4}$-theory and $\\varepsilon$-expansions of critical exponents up to $\\varepsilon^{5}$'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'symmetry, O(N)', 'renormalization group', 'epsilon expansion', 'critical phenomena'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9503230'] | ['Motivated by the discovery of errors in six of the 135 diagrams in the published five-loop expansions of the \\beta-function and the anomalous dimensions of the { O}(n)-symmetric \\phi^4-theory in D=4-\\ep dimensions we present the results of a full analytic reevaluation of all diagrams. The divergences are removed b... | ['1995-04-03'] |
18,038 | ['eng'] | ['Fiore, G'] | ['The $SO_q(N,{\\bf R})$-Symmetric Harmonic Oscillator on the Quantum Euclidean Space ${\\bf R}_q^N$ and its Hilbert Space Structure'] | ['Particle Physics - Theory'] | ['model, oscillator', 'quantum group, SO(N)', 'quantum space, Euclidean', 'quantum mechanics', 'linear spaces, Hilbert space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9306030'] | ['We show that the isotropic harmonic oscillator in the ordinary euclidean space ${\\bf R}^N$ ($N\\ge 3$) admits a natural q-deformation into a new quantum mechanical model having a q-deformed symmetry (in the sense of quantum groups), $SO_q(N,{\\bf R})$. The q-deformation is the consequence of replacing $ R^N$ by ${\\... | ['2002-07-08'] |
18,039 | ['eng'] | ['Girotti, H O', 'Gomes, M', 'De Lyra, J L', 'Mendes, R S', 'Nascimento, J R S', 'Silva, A J'] | ['Attractive Forces Between Electrons in QED$_{3}$'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'dimension, 3', 'vacuum polarization, effect', 'effect, vacuum polarization', 'photon, propagator', 'vector meson, massive', 'massive, vector meson', 'bound state, (2electron)', 'infrared problem', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9210158'] | ['Vacuum polarization effects are non-perturbatively incorporated into the photon propagator to eliminate the severe infrared problems characteristic of QED$_3$. The theory is thus rephrased in terms of a massive vector boson whose mass is $e^2/(8\\pi)$. Subsequently, it is shown that electron-electron bound states are... | ['2002-07-01'] |
18,040 | ['eng'] | ['Nieto, Michael Martin'] | ['Coherent States and Squeezed States, Supercoherent States and Supersqueezed States'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'uncertainty relations', 'coherent state', 'potential', 'model, oscillator', 'supersymmetry'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212116'] | ['This article reports on a program to obtain and understand coherent states for general systems. Most recently this has included supersymmetric systems. A byproduct of this work has been studies of squeezed and supersqueezed states. To obtain a physical understanding of these systems has always been a primary goal. In... | ['2002-07-04'] |
18,041 | ['eng'] | ['Girotti, H O', 'Gomes, M', 'Rivelles, V O'] | ['Chiral Bosons Through Linear Constraints'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'dimension, 2', 'boson, chiral', 'quantization', 'Hamiltonian formalism', 'constraint, linear'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202043'] | ['We study in detail the quantization of a model which apparently describes chiral bosons. The model is based on the idea that the chiral condition could be implemented through a linear constraint. We show that the space of states is of indefinite metric. We cure this disease by introducing ghost fields in such a way t... | ['2002-06-24'] |
18,042 | ['eng'] | ['Alford, M', 'Strominger, A'] | ['S-Wave Scattering of Charged Fermions by a Magnetic Black Hole'] | ['Particle Physics - Theory'] | ['black hole, magnetic', 'electron, backscatter', 'backscatter, electron', 'radiation, Hawking', 'S-matrix', 'Rubakov effect', 'field theory, dilaton', 'partial wave', 'electron, left-handed', 'quantum mechanics', 'effective action', 'electron, flavor'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202075'] | ['We argue that, classically, $s$-wave electrons incident on a magnetically charged black hole are swallowed with probability one: the reflection coefficient vanishes. However, quantum effects can lead to both electromagnetic and gravitational backscattering. We show that, for the case of extremal, magnetically charged... | ['2002-06-24'] |
18,043 | ['eng'] | ['Shen, X'] | ['W-Infinity and String Theory'] | ['Particle Physics - Theory'] | ['review', 'string model', 'algebra, W(infinity)', 'algebra, representation', 'operator product expansion', 'algebra, deformation', 'gauge field theory', 'effective action', 'transformation, Becchi-Rouet-Stora', 'gravitation', 'regularization', 'algebra, SL(2,R)', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202072'] | ['We review some recent developments in the theory of $W_\\infty$. We comment on its relevance to lower-dimensional string theory.'] | ['2002-06-24'] |
18,044 | ['eng'] | ['Greene, Brian R'] | ['Classical {\\it vs.}\\ Landau-Ginzburg Geometry of Compactification'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'spontaneous compactification', 'field theory, Calabi-Yau', 'field theory, orbifold', 'Landau-Ginzburg model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202051'] | ['We consider superstring compactifications where both the classical description, in terms of a Calabi-Yau manifold, and also the quantum theory is known in terms of a Landau-Ginzburg orbifold model. In particular, we study (smooth) Calabi-Yau examples in which there are obstructions to parametrizing all of the complex... | ['2002-06-24'] |
18,045 | ['eng'] | ['Kovner, A', 'Rosenstein, B'] | ['Quarks as topological defects or what is confined inside a hadron?'] | ['Particle Physics - Theory'] | ['quark, model', 'quark, confinement', 'defect, topological', 'field equations, soliton', 'charge, topological', 'dimension, 3', 'field theory, scalar', 'quark antiquark, string', 'Georgi-Glashow model', 'gauge field theory, SU(N)', 'field equations, monopole', 'baryon, model'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9212024'] | ['We present a picture of confinement based on representation of quarks as pointlike topological defects. The topological charge carried by quarks and confined in hadrons is explicitly constructed in terms of Yang - Mills variables. In 2+1 dimensions we are able to construct a local complex scalar field $V(x)$, in term... | ['2002-07-04'] |
18,046 | ['eng'] | ['Sakamoto, M', 'Tabuse, M'] | ['The General Class of String Theories on Orbifolds'] | ['Particle Physics - Theory'] | ['boson, string model', 'field theory, orbifold', 'tensor, energy-momentum', 'scattering amplitude, duality', 'duality, scattering amplitude', 'partition function', 'invariance, modular', 'perturbation theory, higher-order'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202083'] | ['We investigate the following three consistency conditions for constructing string theories on orbifolds: i) the invariance of the energy-momentum tensors under twist operators, ii) the duality of amplitudes and iii) modular invariance of partition functions. It is shown that this investigation makes it possible to ob... | ['2002-06-24'] |
18,047 | ['eng'] | ['Brill, D R'] | ['Splitting of an Extremal Reissner-Nordstr\\"om Throat via Quantum Tunneling'] | ['Particle Physics - Theory'] | ['space-time', 'Einstein-Maxwell equation, instanton', 'black hole', 'approximation, quasiclassical', 'tunneling', 'topology'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202037'] | ['The interior near the horizon of an extremal Reissner-Nordstr\\"om black hole is taken as an initial state for quantum mechanical tunneling. An instanton is presented that connects this state with a final state describing the presence of several horizons. This is interpreted as a WKB description of fluctuations due t... | ['2002-06-24'] |
18,048 | ['eng'] | ['Balachandran, A P', 'McGlinn, W D', "O'Raifeartaigh, Lochlainn", 'Sen, S', 'Sorkin, R D', 'Srivastava, A M'] | ['Topological Spin-Statistics Theorem for Strings'] | ['Particle Physics - Theory'] | ['string model', 'spin, statistics', 'statistics, spin', 'dimension, 3', 'topology'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202052'] | ['Recently, a topological proof of the spin-statistics Theorem has been proposed for a system of point particles which does not require relativity or field theory, but assumes the existence of antiparticles. We extend this proof to a system of string loops in three space dimensions and show that by assuming the existen... | ['2002-06-24'] |
18,049 | ['eng'] | ["Figueroa-O'Farrill, J M", 'Ramos, E'] | ['The Classical Limit of W-Algebras'] | ['Particle Physics - Theory'] | ['algebra, W(N)', 'approximation, classical', 'Korteweg-de Vries equation, hierarchy', 'Hamiltonian formalism', 'operator, Lax'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202040'] | ['We define and compute explicitly the classical limit of the realizations of $W_n$ appearing as hamiltonian structures of generalized KdV hierarchies. The classical limit is obtained by taking the commutative limit of the ring of pseudodifferential operators. These algebras---denoted $w_n$---have free field realizatio... | ['2002-06-24'] |
18,050 | ['eng'] | ['Avan, J', 'Jevicki, A'] | ['Algebraic Structures and Eigenstates for Integrable Collective Field Theories'] | ['Particle Physics - Theory'] | ['field theory, string', 'field theory, collective phenomena', 'Hamiltonian formalism', 'matrix model', 'potential', 'operator, algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202065'] | ['Conditions for the construction of polynomial eigen--operators for the Hamiltonian of collective string field theories are explored. Such eigen--operators arise for only one monomial potential $v(x) = \\mu x^2$ in the collective field theory. They form a $w_{\\infty}$--algebra isomorphic to the algebra of vertex oper... | ['2002-06-24'] |
18,051 | ['eng'] | ['Cugliandolo, L F', 'Schaposnik, F A', 'Vucetich, H'] | ['A Topological Model for Two Dimensional Gravity Coupled to Matter'] | ['Particle Physics - Theory'] | ['gravitation', 'dimension, 2', 'field theory, topological', 'matter, coupling', 'coupling, matter', 'gauge field theory, nonabelian', 'gauge field theory, ISO(1,1)', 'gauge field theory, SO(2,1)', 'gauge field theory, SO(1,2)', 'gauge field theory, action', 'field equations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202038'] | ['Starting from a topological gauge theory in two dimensions with symmetry groups $ISO(2,1)$, $SO(2,1)$ and $SO(1,2)$ we construct a model for gravity with non-trivial coupling to matter. We discuss the equations of motion which are connected to those of previous related models but incorporate matter content. We also d... | ['2002-06-24'] |
18,052 | ['eng'] | ['Ginsparg, Paul H', 'Quevedo, F'] | ['Strings on Curved Spacetimes'] | ['Particle Physics - Theory'] | ['string model', 'coset space', 'dimension, 2-10', 'Wess-Zumino-Witten model', 'gauge field theory', 'duality', 'torsion', 'black hole', 'anomaly', 'approximation, quasiclassical', 'field theory, conformal'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202092'] | ['We present a general discussion of strings propagating on noncompact coset spaces $G/H$ in terms of gauged WZW models, emphasizing the role played by isometries in the existence of target space duality. Fixed points of the gauged transformations induce metric singularities and, in the case of abelian subgroups $H$, b... | ['2002-06-24'] |
18,053 | ['eng'] | ['Freund, Peter George Oliver', 'Zabrodin, A V'] | ['$Z_n$ Baxter Models and Quantum Symmetric Spaces'] | ['Particle Physics - Theory'] | ['quantum space', 'quantum group, SU(2)', 'number theory', 'statistical mechanics, Baxter model', 'symmetry, Z(N)', 'S-matrix'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202073'] | ["The scattering of two excitations (both of the simplest kind) in the magnetic model related to the $Z_n$\\--Baxter model is naturally described for $n \\rightarrow \\infty$ in terms of the Macdonald polynomials for root system $A_1$. These polynomials play the role of zonal spherical functions for a two parameter fam... | ['2002-06-24'] |
18,054 | ['eng'] | ['Smolin, L'] | ['The G_Newton --> 0 Limit of Euclidean Quantum Gravity'] | ['Particle Physics - Theory'] | ['quantum gravity, Euclidean', 'relativity theory, general', 'duality', 'field theory, constraint', 'path integral, measure', 'Hamiltonian formalism', 'perturbation theory', 'background field', 'diffeomorphism'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202076'] | ['Using the Ashtekar formulation, it is shown that the G_{Newton} --> 0 limit of Euclidean or complexified general relativity is not a free field theory, but is a theory that describes a linearized self-dual connection propagating on an arbitrary anti-self-dual background. This theory is quantized in the loop represent... | ['2002-06-24'] |
18,055 | ['eng'] | ['Sezgin, E'] | ['Area-Preserving Diffeomorphisms, w_\\infty Algebras and w_\\infty Gravity'] | ['Particle Physics - Theory'] | ['lectures', 'quantum gravity', 'gauge field theory, W(infinity)', 'transformation, diffeomorphism', 'supersymmetry', 'algebra, representation', 'nonlinear'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202086'] | ['The w_\\infty algebra is a particular generalization of the Virasoro algebra with generators of higher spin 2,3,...,\\infty. It can be viewed as the algebra of a class of functions, relative to a Poisson bracket, on a suitably chosen surface. Thus, w_\\infty is a special case of area-preserving diffeomorphisms of an ... | ['2002-06-24'] |
18,056 | ['eng'] | ['Callan, C', 'Felce, A', 'Freed, D'] | ['Critical Theories of the Dissipative Hofstadter Model'] | ['Particle Physics - Theory'] | ['quantum mechanics, Hofstadter model', 'electron', 'magnetic field', 'dimension, 3', 'critical phenomena', 'renormalization group', 'gas, Coulomb', 'invariance, reparametrization', 'partition function', 'string model', 'n-point function', 'invariance, SL(2,R)', 'regularization', 'energy', 'Ward identity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202085'] | ['It has recently been shown that the dissipative Hofstadter model (dissipative quantum mechanics of an electron subject to uniform magnetic field and periodic potential in two dimensions) exhibits critical behavior on a network of lines in the dissipation/magnetic field plane. Apart from their obvious condensed matter... | ['2002-06-24'] |
18,057 | ['eng'] | ['Itoh, Y', 'Tanii, Y'] | ['Schwinger-Dyson Equations of Matrix Models for Open and Closed Strings'] | ['Particle Physics - Theory'] | ['string model', 'matrix model', 'Dyson-Schwinger equation', 'correlation function', 'scaling, operator'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202080'] | ['We study the Schwinger-Dyson equations of a matrix model for an open-closed string theory. The free energy with source terms for scaling operators satisfies the same Virasoro conditions as those of the pure closed string and is obtained from that of the pure closed string by giving appropriate nonvanishing background... | ['2002-06-24'] |
18,058 | ['eng'] | ['Balakrishna, B S', 'Wali, K C'] | ['Non-Abelian Monopoles Coupled to Gravity'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'gauge field theory, SU(2)', 'Higgs model', 'field equations, monopole'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202077'] | ["A static configuration of point charges held together by the gravitational attraction is known to be given by the Majumdar-Papapetrou solution in the Einstein-Maxwell theory. We consider a generalization of this solution to non-Abelian monopoles of the Yang-Mills Higgs system coupled to gravity. The solution is gover... | ['2002-06-24'] |
18,059 | ['eng'] | ['Yang, Z'] | ['A Possible Black Hole Background in c=1 Matrix Model'] | ['Particle Physics - Theory'] | ['matrix model', 'central charge, 1', 'black hole, background', 'potential', 'space-time'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202078'] | ['We propose a new space-time interpretation for c=1 matrix model with potential $V(x)=-x^{2}/2-\\m^{2}/2x^{2}$. It is argued that this particular potential corresponds to a black hole background. Some related issues are discussed.'] | ['2002-06-24'] |
18,060 | ['eng'] | ['Boulatov, D V'] | ['A Model of Three-Dimensional Lattice Gravity'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'dimension, 3', 'gravitation, simplex', 'lattice field theory, topological', 'partition function', 'symmetry, SU(2)', 'group theory, deformation', 'partial wave analysis', 'Clebsch-Gordan coefficients', 'gauge field theory, Z(N)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202074'] | ['A model is proposed which generates all oriented $3d$ simplicial complexes weighted with an invariant associated with a topological lattice gauge theory. When the gauge group is $SU_q(2)$, $q^n=1,$ it is the Turaev-Viro invariant and the model may be regarded as a non-perturbative definition of $3d$ simplicial quantu... | ['2002-06-24'] |
18,061 | ['eng'] | ['Horiguchi, T', 'Sakamoto, M', 'Tabuse, M'] | ['Cocycle Properties of String Theories on Orbifolds'] | ['Particle Physics - Theory'] | ['talk, Kyoto 1991/09/09', 'string model, boson', 'field theory, orbifold', 'Hamiltonian formalism', 'operator, vertex', 'partition function', 'invariance, modular', 'perturbation theory, higher-order', 'field theory, conformal', 'algebra, Virasoro', 'linear spaces, Hilbert space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202084'] | ['We study cocycle properties of vertex operators and present an operator representation of cocycle operators, which are attached to vertex operators to ensure the duality of amplitudes. It is shown that this analysis makes it possible to obtain the general class of consistent string theories on orbifolds.'] | ['2002-06-24'] |
18,062 | ['eng'] | ['Hinrichsen, H', 'Rittenberg, Vladimir'] | ['The Pokrovski-Talapov Phase Transitions and Quantum Groups'] | ['Particle Physics - Theory'] | ['talk, Goslar 1991/07/16', 'quantum group', 'statistical mechanics', 'supersymmetry', 'algebra, Hecke', 'braid group', 'algebra, deformation', 'algebra, SU(1/1)'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202082'] | ['We show that the XY quantum chain in a magnetic field is invariant under a two parameter deformation of the $SU(1/1)$ superalgebra. One is led to an extension of the braid group and the Hecke algebras which reduce to the known ones when the two parameter coincide. The physical significance of the two parameters is di... | ['2002-06-24'] |
18,063 | ['eng'] | ['Kausch, H G', 'Watts, G M T'] | ['Duality in Quantum Toda theory and W-algebras'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'field theory, Toda', 'dimension, 2', 'algebra, Lie', 'algebra, W(N)', 'algebra, chiral', 'algebra, representation', 'duality'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202070'] | ['We consider Quantum Toda theory associated to a general Lie algebra. We prove that the conserved quantities in both conformal and affine Toda theories exhibit duality interchanging the Dynkin diagram and its dual, and inverting the coupling constant. As an example we discuss the conformal Toda theories based on $B_2,... | ['2002-06-24'] |
18,064 | ['eng'] | ['Delius, G W', 'Grisaru, Marc T', 'Zanon, D'] | ['Quantum Conserved Currents in Affine Toda Theories'] | ['Particle Physics - Theory'] | ['field theory, Toda', 'field theory, affine', 'dimension, 2', 'current, conservation law', 'spin, high', 'high, spin', 'S-matrix, factorization', 'perturbation theory, higher-order', 'renormalization', 'bootstrap'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202069'] | ['We study the renormalization and conservation at the quantum level of higher-spin currents in affine Toda theories with particular emphasis on the nonsimply-laced cases. For specific examples, namely the spin-3 current for the $a_3^{(2)}$ and $c_2^{(1)}$ theories, we prove conservation to all-loop order, thus establi... | ['2002-06-24'] |
18,065 | ['eng'] | ['Ibáñez, L E', 'Lüst, Dieter'] | ['Duality Anomaly Cancellation, Minimal String Unification and the Effective Low-Energy Lagrangian of 4-D Strings'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'effective action', 'duality, space-time', 'anomaly', 'field theory, orbifold', 'symmetry breaking', 'grand unified theory', 'supergravity', 'threshold, effect', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202046'] | ['We present a systematic study of the constraints coming from target-space duality and the associated duality anomaly cancellations on orbifold-like 4-D strings. A prominent role is played by the modular weights of the massless fields. We present a general classification of all possible modular weights of massless fie... | ['2002-06-24'] |
18,066 | ['eng'] | ['Ting, C', 'Lai, C H'] | ['Spinning Braid Group Representation and the Fractional Quantum Hall Effect'] | ['Particle Physics - Theory'] | ['Hall effect, fractional', 'braid group', 'path integral', 'spin', 'postulated particle, anyon', 'anyon, nonabelian', 'quantum mechanics', 'Wess-Zumino-Witten model', 'magnetic field, external field'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202024'] | ['The path integral approach to representing braid group is generalized for particles with spin. Introducing the notion of {\\em charged} winding number in the super-plane, we represent the braid group generators as homotopically constrained Feynman kernels. In this framework, super Knizhnik-Zamolodchikov operators app... | ['2002-06-24'] |
18,067 | ['eng'] | ['Ito, K', 'Madsen, J O'] | ['Hamiltonian Reduction and Classical Extended Superconformal Algebras'] | ['Particle Physics - Theory'] | ['algebra, conformal', 'supersymmetry', 'Miura transformation', 'algebra, W(N)', 'algebra, Lie'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202058'] | ['We present a systematic construction of classical extended superconformal algebras from the hamiltonian reduction of a class of affine Lie superalgebras, which include an even subalgebra $sl(2)$. In particular, we obtain the doubly extended $N=4$ superconformal algebra $\\tilde{A}_{\\gamma}$ from the hamiltonian redu... | ['2002-06-24'] |
18,068 | ['eng'] | ['Lu, H', 'Pope, C N', 'Schrans, S', 'Wang, X J'] | ['On Sibling and Exceptional W Strings'] | ['Particle Physics - Theory'] | ['string model', 'algebra, W(N)', 'algebra, exceptional', 'particle, spectra', 'spectra, particle'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202060'] | ['We discuss the physical spectrum for $W$ strings based on the algebras $B_n$, $D_n$, $E_6$, $E_7$ and $E_8$. For a simply-laced $W$ string, we find a connection with the $(h,h+1)$ unitary Virasoro minimal model, where $h$ is the dual Coxeter number of the underlying Lie algebra. For the $W$ string based on $B_n$, we ... | ['2002-06-24'] |
18,069 | ['eng'] | ['Bowcock, P'] | ['Exceptional Superconformal Algebras'] | ['Particle Physics - Theory'] | ['algebra, W(N)', 'algebra, conformal', 'spin, 1', '1, spin', 'spin, 2', '2, spin', 'supersymmetry', 'algebra, exceptional', 'commutation relations', 'algebra, octonion', 'algebra, symplectic', 'spin, 3/2', '3/2, spin'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202061'] | ["Reductive W-algebras which are generated by bosonic fields of spin-1, a single spin-2 field and fermionic fields of spin-3/2 are classified. Three new cases are found: a `symplectic' family of superconformal algebras which are extended by $su(2)\\oplus sp(n)$, an $N=7$ and an $N=8$ superconformal algebra. The excepti... | ['2002-06-24'] |
18,070 | ['eng'] | ['Kreuzer, M', 'Skarke, H'] | ['On the Classification of Quasihomogeneous Functions'] | ['Particle Physics - Theory'] | ['string model', 'analytic properties', 'algebra'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202039'] | ["We give a criterion for the existence of a non-degenerate quasihomogeneous polynomial in a configuration, i.e. in the space of polynomials with a fixed set of weights, and clarify the relation of this criterion to the necessary condition derived from the formula for the Poincar\\'e polynomial. We further prove finite... | ['2002-06-24'] |
18,071 | ['eng'] | ['Altschuler, D', 'Costé, A'] | ['Quasi-Quantum Groups, Knots, Three-Manifolds, and Topological Field Theory'] | ['Particle Physics - Theory'] | ['field theory, topological', 'dimension, 3', 'partition function', 'algebra, Hopf', 'quantum group', 'knot theory', 'braid group'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202047'] | ['We show how to construct, starting from a quasi-Hopf algebra, or quasi-quantum group, invariants of knots and links. In some cases, these invariants give rise to invariants of the three-manifolds obtained by surgery along these links. This happens for a finite-dimensional quasi-quantum group, whose definition involve... | ['2002-06-24'] |
18,072 | ['eng'] | ['Polychronakos, A P'] | ['Exchange Operator Formalism for Integrable Systems of Particles'] | ['Particle Physics - Theory'] | ['many-body problem, wave function', 'matrix model', 'dimension, 1', 'Hamiltonian formalism', 'integrability', 'potential', 'operator, exchange', 'exchange, operator'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202057'] | ['We formulate one dimensional many-body integrable systems in terms of a new set of phase space variables involving exchange operators. The hamiltonian in these variables assumes a decoupled form. This greatly simplifies the derivation of the conserved charges and the proof of their commutativity at the quantum level.... | ['2002-06-24'] |
18,073 | ['eng'] | ['Lahiri, A'] | ['An Alternative Scenario for Non-Abelian Quantum Hair'] | ['Particle Physics - Theory'] | ['gauge field theory, tensor', 'gauge field theory, Yang-Mills', 'black hole, hair', 'charge, topological', 'ground state'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202045'] | ['Topologically charged black holes in a theory with a 2-form coupled to a non-abelian gauge field are investigated. It is found that the classification of the ground states is similar to that in the theory of non-abelian discrete quantum hair.'] | ['2002-06-24'] |
18,074 | ['eng'] | ['Smolin, L'] | ['Recent Developments in Non-Perturbative Quantum Gravity'] | ['Particle Physics - Theory'] | ['lectures', 'quantum gravity, nonperturbative', 'loop space', 'diffeomorphism', 'Chern-Simons term', 'geometry', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202022'] | ['New results from the new variables/loop representation program of nonperturbative quantum gravity are presented, with a focus on results of Ashtekar, Rovelli and the author which greatly clarify the physical interpretation of the quantum states in the loop representation. These include: 1) The construction of a class... | ['2002-06-24'] |
18,075 | ['eng'] | ['Klassen, T R', 'Melzer, E'] | ['Kinks in Finite Volume'] | ['Particle Physics - Theory'] | ['field theory, kink', 'dimension, 2', 'S-matrix, factorization', 'Yang-Baxter equation', 'transfer matrix, Bethe ansatz', 'finite size', 'field theory, conformal', 'perturbation theory', 'Ising model', 'symmetry, spontaneously broken', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202034'] | ['A (1+1)-dimensional quantum field theory with a degenerate vacuum (in infinite volume) can contain particles, known as kinks, which interpolate between different vacua and have nontrivial restrictions on their multi-particle Hilbert space. Assuming such a theory to be integrable, we show how to calculate the multi-ki... | ['2002-06-24'] |
18,076 | ['eng'] | ['Ben-Menahem, S'] | ['D=0 Matrix Model as Conjugate Field Theory'] | ['Particle Physics - Theory'] | ['matrix model', 'dimension, 0', 'field theory, nonlocal', 'partition function', 'field equations, solution', 'perturbation theory, higher-order', 'scaling'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202019'] | ['The D=0 matrix model is reformulated as a 2d nonlocal quantum field theory. The interactions occur on the one-dimensional line of hermitian matrix eigenvalues. The field is conjugate to the density of matrix eigenvalues which appears in the Jevicki-Sakita collective field theory. The classical solution of the field e... | ['2002-06-24'] |
18,077 | ['eng'] | ['Linden, N', 'Perry, M'] | ['Path Intergals and Perturbative Expansions for Non-Compact Symmetric Spaces'] | ['Particle Physics - Theory'] | ['path integral', 'perturbation theory', 'group theory, noncompact', 'coset space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202016'] | ['We show how to construct path integrals for quantum mechanical systems where the space of configurations is a general non-compact symmetric space. Associated with this path integral is a perturbation theory which respects the global structure of the system. This perturbation expansion is evaluated for a simple exampl... | ['2002-06-24'] |
18,078 | ['eng'] | ['Verlinde, Erik'] | ['The Master Equation of 2D String Theory'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 2', 'invariance, Becchi-Rouet-Stora', 'cohomology', 'ghost', 'particle, spectra', 'spectra, particle', 'charge, conservation law', 'Ward identity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202021'] | ['A general method is presented for deriving on-shell Ward-identities in (2D) string theory. It is shown that all tree-level Ward identities can be summarized in a quadratic differential equation for the generating function of tree-amplitudes. This result is extended to loop amplitudes and leads to a master equation {\... | ['2002-06-24'] |
18,079 | ['eng'] | ['Ferretti, G', 'Rajeev, S G'] | ['$CP^N$ Model With a Chern-Simons Term'] | ['Particle Physics - Theory'] | ['propagator', 'field theoretical model, CP(N-1)', 'field theory, Euclidean', 'dimension, 3', 'Chern-Simons term', 'renormalization group, beta function', 'propagator', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202026'] | ['The $CP^N$ model in three euclidean dimensions is studied in the presence of a Chern-Simons term using the $1/N$ expansion. The $\\beta$-function for the CS coefficient $\\theta$ is found to be zero to order $1/N$ in the unbroken phase by an explicit calculation. It is argued to be zero to all orders. Some remarks on... | ['2002-06-24'] |
18,080 | ['eng'] | ['Ravanini, F'] | ['Thermodynamic Bethe Ansatz for G_k x G_l / G_{k+l} Coset Models Perturbed by Their \\phi_{1,1,Adj} Operator'] | ['Particle Physics - Theory'] | ['thermodynamics, Bethe ansatz', 'coset space', 'field theory, conformal', 'perturbation', 'central charge', 'Wess-Zumino-Witten model', 'model, chiral', 'transfer matrix', 'S-matrix'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202020'] | ["We propose a Thermodynamic Bethe Ansatz (TBA) for G_k x G_l / G_{k+l} conformal coset models (G any simply-laced Lie algebra) perturbed by their operator \\phi_{1,1,Adj}. An interesting adjacency structure appears and can be depicted in a sort of ``product'' of Dynkin diagrams of G and A_{k+l-1}. UV and IR limits are... | ['2002-06-24'] |
18,081 | ['eng'] | ['Fendley, P R', 'Intriligator, K'] | ['Scattering and Thermodynamics of Integrable N=2 Theories'] | ['Particle Physics - Theory'] | ['supersymmetry', 'integrability', 'symmetry, Z(N)', 'symmetry, spontaneously broken', 'thermodynamics, Bethe ansatz', 'mass, soliton', 'soliton, mass', 'fermion number, fractional', 'S-matrix', 'Landau-Ginzburg model', 'energy, ground state', 'field theoretical model, CP(N-1)', 'sine-Gordon equation', 'field theory, T... | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202011'] | ['We study $N$=2 supersymmetric integrable theories with spontaneously-broken \\Zn\\ symmetry. They have exact soliton masses given by the affine $SU(n)$ Toda masses and fractional fermion numbers given by multiples of $1/n$. The basic such $N$=2 integrable theory is the $A_n$-type $N$=2 minimal model perturbed by the ... | ['2002-06-24'] |
18,082 | ['eng'] | ['Spiridonov, V P'] | ['Deformed Conformal and Supersymmetric Quantum Mechanics'] | ['Particle Physics - Theory'] | ['quantum mechanics', 'supersymmetry, algebra', 'algebra, conformal', 'algebra, deformation', 'Hamiltonian formalism'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202013'] | ['Within the standard quantum mechanics a q-deformation of the simplest N=2 supersymmetry algebra is suggested. Resulting physical systems do not have conserved charges and degeneracies in the spectra. Instead, superpartner Hamiltonians are q-isospectral, i.e. the spectrum of one can be obtained from another by the q^2... | ['2002-06-24'] |
18,083 | ['eng'] | ['Horava, P'] | ['Two Dimensional String Theory and the Topological Torus'] | ['Particle Physics - Theory'] | ['string model', 'dimension, 2', 'field theory, topological', 'field theory, torus', 'gravitation', 'coupling, matter', 'matter, coupling', 'transformation, Becchi-Rouet-Stora', 'ghost number', 'operator, algebra', 'bibliography'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202008'] | ['We analyze topological string theory on a two dimensional torus, focusing on symmetries in the matter sector. Even before coupling to gravity, the topological torus has an infinite number of point-like physical observables, which give rise via the BRST descent equations to an infinite symmetry algebra of the model. T... | ['2002-06-24'] |
18,084 | ['eng'] | ['Iso, S', 'Karabali, Dimitra', 'Sakita, Bunji'] | ['One-Dimensional Fermions as Two-Dimensional Droplets Via Chern-Simons Theory'] | ['Particle Physics - Theory'] | ['fermion, nonrelativistic', 'dimension, 1', 'droplet', 'dimension, 2', 'Chern-Simons term', 'dimension, 3', 'model, hydrodynamical', 'potential, oscillator', 'bosonization', 'field theory, collective', 'Hamiltonian formalism, constraint'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202012'] | ['Based on the observation that a particle motion in one dimension maps to a two-dimensional motion of a charged particle in a uniform magnetic field, constrained in the lowest Landau level, we formulate a system of one-dimen- sional nonrelativistic fermions by using a Chern-Simons field theory in 2+1 dimensions. Using... | ['2002-06-24'] |
18,085 | ['eng'] | ['Imamura, Y', 'Sakamoto, M', 'Sasada, T', 'Tabuse, M'] | ['String Theories on the Asymmetric Orbifolds with Twist-Untwist Intertwining Currents'] | ['Particle Physics - Theory'] | ['talk, Kyoto 1991/09/09', 'string model, supersymmetry', 'field theory, orbifold', 'lattice', 'symmetry, Z(N)', 'partition function', 'perturbation theory, higher-order', 'invariance, modular', 'linear spaces, Hilbert space'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202009'] | ['We give various examples of asymmetric orbifold models to possess intertwining currents which convert untwisted string states to twisted ones, and vice versa, and see that such asymmetric orbifold models are severely restricted. The existence of the intertwining currents leads to the enhancement of symmetries in asym... | ['2002-06-24'] |
18,086 | ['eng'] | ['Nagao, G'] | ['Toward a Conformal Field Theory for the Quantum Hall Effect'] | ['Particle Physics - Theory'] | ['Hall effect', 'field theory, conformal', 'effective Hamiltonian', 'charged particle, many-body problem', 'magnetic field, high', 'commutation relations', 'operator product expansion', 'expansion 1/N'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202010'] | ['An effective Hamiltonian for the study of the quantum Hall effect is proposed. This Hamiltonian, which includes a ``current-current" interaction has the form of a Hamiltonian for a conformal field theory in the large $N$ limit. An order parameter is constructed from which the Hamiltonian may be derived. This order pa... | ['2002-06-24'] |
18,087 | ['eng'] | ['Chekhov, L', 'Makeenko, Y M'] | ['A Hint on the External Field Problem for Matrix Models'] | ['Particle Physics - Theory'] | ['matrix model, external field', 'partition function', 'Dyson-Schwinger equation', 'constraint, Virasoro'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202006'] | ['We reexamine the external field problem for $N\\times N$ hermitian one-matrix models. We prove an equivalence of the models with the potentials $\\tr{({1/over2N}X^2 + \\log X - \\Lambda X)}$ and $\\sum_{k=1}^\\infty t_k\\tr{X^k}$ providing the matrix $\\Lambda$ is related to $\\{t_k\\}$ by $t_k=\\fr 1k \\tr{\\Lambda^... | ['2002-06-24'] |
18,088 | ['eng'] | ['Rodgers, V G J'] | ['QCD Instantons and 2D Surfaces'] | ['Particle Physics - Theory'] | ['quantum chromodynamics, instanton', 'vacuum state, Theta parameter', 'moduli space', 'string model', 'effective action', 'Wess-Zumino-Witten model', 'nonperturbative', 'group theory, Kac-Moody'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202066'] | ["Some time ago, Atiyah showed that there exists a natural identification between the k-instantons of a Yang-Mills theory with gauge group $G$ and the holomorphic maps from $CP_1$ to $\\Omega G$. Since then, Nair and Mazur, have associated the $\\Theta $ vacua structure in QCD with self-intersecting Riemann surfaces im... | ['2002-06-24'] |
18,089 | ['eng'] | ['Chung, S', 'Tye, S H Henry'] | ['Chiral Gauged WZW Theories and Coset Models in Conformal Field Theory'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'gauge field theory', 'field theory, coset space', 'path integral', 'effective action', 'anomaly', 'quantization, Becchi-Rouet-Stora', 'operator product expansion', 'algebra, Kac-Moody'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202002'] | ['The Wess-Zumino-Witten (WZW) theory has a global symmetry denoted by $G_L\\otimes G_R$. In the standard gauged WZW theory, vector gauge fields (\\ie\\ with vector gauge couplings) are in the adjoint representation of the subgroup $H \\subset G$. In this paper, we show that, in the conformal limit in two dimensions, t... | ['2002-06-24'] |
18,090 | ['eng'] | ['Kamionkowski, M P', 'March-Russell, John David'] | ['Planck-Scale Physics and the Peccei-Quinn Mechanism'] | ['Particle Physics - Theory'] | ['strong interaction, CP', 'CP, strong interaction', 'postulated particle, axion', 'operator, higher-dimensional', 'symmetry breaking', 'quantum gravity, effect', 'Goldstone particle, mass', 'mass, Goldstone particle', 'potential'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202003'] | ['Global-symmetry violating higher-dimension operators, expected to be induced by Planck-scale physics, in general drastically alter the properties of the axion field associated with the Peccei-Quinn solution to the strong-CP problem, and render this solution unnatural. The particle physics and cosmology associated wit... | ['2002-06-24'] |
18,091 | ['eng'] | ['Giddings, Steven B', 'Strominger, A'] | ['Dynamics of Extremal Black Holes'] | ['Particle Physics - Theory'] | ['quantum gravity', 'electromagnetic field', 'string model', 'effective action', 'spontaneous compactification', 'dimension, 5', 'black hole', 'perturbation theory', 'approximation, quasiclassical', 'fermion', 'S-matrix, unitarity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202004'] | ["Particle scattering and radiation by a magnetically charged, dilatonic black hole is investigated near the extremal limit at which the mass is a constant times the charge. Near this limit a neighborhood of the horizon of the black hole is closely approximated by a trivial product of a two-dimensional black hole with ... | ['2002-06-24'] |
18,092 | ['eng'] | ['Ashtekar, Abhay', 'Isham, Christopher J'] | ['Representations of the holonomy algebras of gravity and non-Abelian gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'relativity theory, general', 'fibre bundle', 'algebra, holonomy', 'algebra, C*', 'algebra, representation', 'group theory'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202053'] | ["Holonomy algebras arise naturally in the classical description of Yang-Mills fields and gravity, and it has been suggested, at a heuristic level, that they may also play an important role in a non-perturbative treatment of the quantum theory. The aim of this paper is to provide a mathematical basis for this proposal.... | ['2002-06-24'] |
18,093 | ['eng'] | ['Brügmann, B', 'Gambini, R', 'Pullin, J'] | ['Jones Polynomials for Intersecting Knots as Physical States of Quantum Gravity'] | ['Particle Physics - Theory'] | ['quantum gravity, representation', 'knot theory, Jones polynomial', 'Chern-Simons term', 'diffeomorphism, constraint', 'wave function', 'regularization', 'braid group'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202018'] | ['We find a consistent formulation of the constraints of Quantum Gravity with a cosmological constant in terms of the Ashtekar new variables in the connection representation, including the existence of a state that is a solution to all the constraints. This state is related to the Chern-Simons form constructed from the... | ['2002-06-24'] |
18,094 | ['eng'] | ['Cugliandolo, L F', 'Rossini, G L', 'Schaposnik, F A'] | ['Stochastic Quantization of the Chern-Simons Theory'] | ['Particle Physics - Theory'] | ['Chern-Simons term', 'gauge field theory, nonabelian', 'dimension, 3', 'quantization, stochastic', 'Langevin equation, regularization', 'gauge field theory, topological', 'dimension, 4', 'partition function', 'Feynman graph'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202030'] | ['We discuss Stochastic Quantization of $d$=3 dimensional non-Abelian Chern-Simons theory. We demonstrate that the introduction of an appropriate regulator in the Langevin equation yields a well-defined equilibrium limit, thus leading to the correct propagator. We also analyze the connection between $d$=3 Chern-Simons ... | ['2002-06-24'] |
18,095 | ['eng'] | ['Awata, H'] | ['Screening Currents Ward Identity and Integral Formulas for the WZNW Correlation Functions'] | ['Particle Physics - Theory'] | ['talk, Kyoto 1991/09/09', 'Wess-Zumino-Witten model', 'dimension, 2', 'algebra, Kac-Moody', 'operator product expansion', 'current, screening', 'Ward identity'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202032'] | ["We derive, based on the Wakimoto realization, the integral formulas for the WZNW correlation functions. The role of the ``screening currents Ward identity'' is demonstrated with explicit examples. We also give a more simple proof of a previous result."] | ['2002-06-24'] |
18,096 | ['eng'] | ['Holzhey, C F E', 'Wilczek, Frank'] | ['Black Holes as Elementary Particles'] | ['Particle Physics - Theory'] | ['black hole, model', 'quantum mechanics', 'field equations, dilaton', 'temperature', 'entropy', 'radiation, Hawking', 'thermodynamics', 'perturbation theory', 'Rubakov effect', 'effective potential', 'numerical calculations'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202014'] | ['It is argued that the qualitative features of black holes, regarded as quantum mechanical objects, depend both on the parameters of the hole and on the microscopic theory in which it is embedded. A thermal description is inadequate for extremal holes. In particular, extreme holes of the charged dilaton family can hav... | ['2002-06-24'] |
18,097 | ['eng'] | ['Gracía-Bondía, José M', 'Varilly, J C'] | ['QED in external fields from the spin representation'] | ['Particle Physics - Phenomenology'] | ['Dirac equation', 'Feynman graph', 'S-matrix, factorization', 'Schwinger terms', 'anomaly', 'electromagnetic field, external field', 'fermion', 'fibre bundle', 'group theory, O(infinity)', 'group theory, representation', 'linear spaces, Fock space', 'phase space', 'quantization', 'quantum electrodynamics, external fie... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9402098'] | ['Systematic use of the infinite-dimensional spin representation simplifies and rigorizes several questions in Quantum Field Theory. This representation permutes "Gaussian" elements in the fermion Fock space, and is necessarily projective: we compute its cocycle at the group level, and obtain Schwinger terms and anomal... | ['1994-02-17'] |
18,098 | ['eng'] | ['Harnad, J', 'Wisse, M'] | ['Matrix Nonlinear Schr\\"odinger Equations and Moment Maps into Loop Algebras${}^\\dag$'] | ['Particle Physics - Theory'] | ['Schroedinger equation, nonlinear', 'integrability', 'differential equations, Lax', 'algebra, loop space', 'Hamiltonian formalism'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9210071'] | ['It is shown how Darboux coordinates on a reduced symplectic vector space may be used to parametrize the phase space on which the finite gap solutions of matrix nonlinear Schr\\"odinger equations are realized as isospectral Hamiltonian flows. The parametrization follows from a moment map embedding of the symplectic ve... | ['2002-07-01'] |
18,099 | ['eng'] | ['Mann, R B', 'Morris, M S', 'Ross, S F'] | ['Properties of Asymptotically Flat Two-Dimensional Black Holes'] | ['Particle Physics - Theory'] | ['black hole, horizon', 'dimension, 2', 'thermodynamics', 'fundamental constant, length', 'field equations, Liouville', 'postulated particle, tachyon', 'tensor, energy-momentum', 'field theory, scalar', 'symmetry, dilation', 'effective Lagrangian'] | ['http://documents.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9202068'] | ["We investigate properties of two-dimensional asymptotically flat black holes which arise in both string theory and in scale invariant theories of gravity. By introducing matter sources in the field equations we show how such objects can arise as the endpoint of gravitational collapse. We examine the motion of test pa... | ['2002-06-24'] |
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