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 |
|---|---|---|---|---|---|---|---|---|
14,900 | ['eng'] | ['Becchi, C', 'Imbimbo, C'] | ['Gribov problem, contact terms and Cech-de Rham cohomology in 2D topological gravity'] | ['Particle Physics - Theory'] | ['gravitation', 'dimension, 2', 'field theory, topological', 'transformation, Becchi-Rouet-Stora', 'anomaly', 'cohomology', 'gauge field theory, Gribov problem', 'Ward identity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9510003'] | ["We point out that averages of equivariant observables of 2D topological gravity are not globally defined forms on moduli space, when one uses the functional measure corresponding to the formulation of the theory as a 2D superconformal model. This is shown to be a consequence of the existence of the Gribov horizon {\\... | ['1995-10-03'] |
14,901 | ['eng'] | ['Ketov, S V'] | ['N=2 string loops and spectral flow'] | ['Particle Physics - Theory'] | ['talk, Trieste 1995/06/29', 'string model', 'supersymmetry', 'scattering amplitude, higher-order', 'higher-order, scattering amplitude', 'Riemann surfaces', 'loop space', 'partition function', 'cohomology, Becchi-Rouet-Stora'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9510005'] | ["Based on our previous studies of the BRST cohomology of the critical N=2 strings, we construct the loop measure and make explicit the role of the spectral flow at arbitrary genus and Chern class, in a holomorphic field basis. The spectral flow operator attributes to the existence of the hidden `small' N=4 superconfor... | ['1995-10-03'] |
14,902 | ['eng'] | ['Rídky, J'] | ['Stochastic coupling of fermions'] | ['Particle Physics - Theory'] | ['fermion', 'quantization, stochastic', 'propagator', 'Langevin equation', 'field equations, Liouville'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509172'] | ['The stochastic quantization of the fermion field is performed starting from Dirac equations. The statistical properties of stochastic terms in Langevin equations are described by explicit formulae of a Markov process. The interaction of the field is introduced as correlation of the stochastic terms. In the long time ... | ['1995-10-02'] |
14,903 | ['eng'] | ['Hindawi, A A', 'Ovrut, B A', 'Waldram, D'] | ['Two-dimensional higher-derivative supergravity and a new mechanism for supersymmetry breaking'] | ['Particle Physics - Theory'] | ['supergravity', 'dimension, 2', 'field theory, action', 'derivative, high', 'supersymmetry, superfield', 'supersymmetry, spontaneously broken', 'vacuum state'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509174'] | ['We discuss the general form of quadratic (1,1) supergravity in two dimensions, and show that this theory is equivalent to two scalar supermultiplets coupled to non-trivial supergravity. It is demonstrated that the theory possesses stable vacua with vanishing cosmological constant which spontaneously break supersymmet... | ['1995-10-02'] |
14,904 | ['eng'] | ['Ikegami, K', 'Nakamura, A'] | ['Bosonization of Thirring model in arbitrary dimension'] | ['Particle Physics - Theory'] | ['Thirring model', 'any-dimensional', 'bosonization', 'path integral', 'Hamiltonian formalism', 'constraint'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509173'] | ['We propose to use a novel master Lagrangian for performing the bosonization of the D-dimensional massive Thirring model in D=d+1 \\ge 2 dimensions. It is shown that our master Lagrangian is able to relate the previous interpolating Lagrangians each other which have been recently used to show the equivalence of the ma... | ['1995-10-02'] |
14,905 | ['eng'] | ['Argyres, Philip C', 'Shapere, A D'] | ['The vacuum structure of N=2 super-QCD with classical gauge groups'] | ['Particle Physics - Theory'] | ['gauge field theory, SO(N)', 'gauge field theory, Sp(N)', 'supersymmetry', 'vacuum state', 'group theory, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509175'] | ['We determine the vacuum structure of N=2 supersymmetric QCD with fundamental quarks for gauge groups SO(n) and Sp(2n), extending prior results for SU(n). The solutions are all given in terms of families of hyperelliptic Riemann surfaces of genus equal to the rank of the gauge group. In the scale invariant cases, the ... | ['1995-10-02'] |
14,906 | ['eng'] | ['Hanany, A'] | ['On the quantum moduli space of N=2 supersymmetric gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, SO(N)', 'supersymmetry', 'fermion, flavor', 'vacuum state', 'moduli space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509176'] | ['Families of hyper-elliptic curves which describe the quantum moduli spaces of vacua of N=2 supersymmetric SO(N_c) gauge theories coupled to N_f flavors of quarks in the vector representation are constructed. The quantum moduli spaces for 2N_f < N_c-1 are determined completely by imposing R-symmetry, instanton correct... | ['1995-10-02'] |
14,907 | ['eng'] | ['Chen, Y H', 'He, M T', 'Nyeo, S L'] | ['Differential renormalization of scalar field theory in the background-field method'] | ['Particle Physics - Theory'] | ['phi**n model, 4', 'field theory, Euclidean', 'path integral', 'background field', 'effective action', 'perturbation theory, higher-order', 'regularization, differential', 'renormalization group', 'short-distance behavior'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509164'] | ['We introduce an approach for calculating the quantum loop corrections in the \\phi^4 theory. Differential regularization and background-field method are essential tools and are used to calculate the effective action of the theory to two-loop order. Our approach is considerably simpler than other known methods and can... | ['1995-09-29'] |
14,908 | ['eng'] | ['Asquith, B'] | ['Non-commutative geometry and the strong force'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'geometry, noncommutative', 'strong interaction', 'forces, vector', 'electroweak interaction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509163'] | ["The restrictions imposed on the strong force in the `non-commutative standard model' are examined. It is concluded that given the framework of non-commutative geometry and assuming the electroweak sector of the standard model many details of the strong force can be explained including it's vectorial nature."] | ['1995-09-29'] |
14,909 | ['eng'] | ['Flohr, M'] | ['On modular invariant partition functions of conformal field theories with logarithmic operators'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'partition function', 'correlation function', 'algebra, W(N,M)', 'moduli space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509166'] | ["We extend the definitions of characters and partition functions to the case of conformal field theories which contain operators with logarithmic correlation functions. As an example we consider the theories with central charge c = c(p,1) = 13-6(p+1/p), the ``border'' of the discrete minimal series. We show that there... | ['1995-09-29'] |
14,910 | ['eng'] | ['Antoniadis, Ignatios', 'Mazur, P O', 'Mottola, E'] | ['Physical states of the quantum conformal factor'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'field theory, scalar', 'transformation, conformal', 'quantization, constraint', 'Hamiltonian formalism', 'phase space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509169'] | ['The conformal factor of the spacetime metric becomes dynamical due to the trace anomaly of matter fields. Its dynamics is described by an effective action which we quantize by canonical methods on the Einstein universe R\\times S^3. We find an infinite tower of discrete states which satisfy the constraints of quantum... | ['1995-09-29'] |
14,911 | ['eng'] | ['Antoniadis, Ignatios', 'Mazur, P O', 'Mottola, E'] | ['Quantum diffeomorphisms and conformal symmetry'] | ['Particle Physics - Theory'] | ['field theory, quantization', 'space-time', 'transformation, conformal', 'transformation, diffeomorphism', 'algebra, SO(4,2)', 'Hamiltonian formalism', 'constraint', 'Wheeler-DeWitt equation', 'tensor, energy-momentum'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509168'] | ['We analyze the constraints of general coordinate invariance for quantum theories possessing conformal symmetry in four dimensions. The character of these constraints simplifies enormously on the Einstein universe R \\times S^3. The SO(4,2) global conformal symmetry algebra of this space determines uniquely a finite s... | ['1995-09-29'] |
14,912 | ['eng'] | ['Mourad, M F', 'Sasaki, R'] | ['Non-linear sigma models on a half plane'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 2', 'boundary condition', 'charge, nonlocal', 'charge, conservation law'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509153'] | ['In the context of integrable field theory with boundary, the integrable non-linear sigma models in two dimensions, for example, the O(N), the principal chiral, the {\\rm CP}^{N-1} and the complex Grassmannian sigma models are discussed on a half plane. In contrast to the well known cases of sine-Gordon, non-linear Sc... | ['1995-09-28'] |
14,913 | ['eng'] | ['Kuckert, B'] | ["Borchers' commutation relations and modular symmetries"] | ['Particle Physics - Theory'] | ['axiomatic field theory', 'operator, algebra', 'invariance, CPT', 'symmetry, modular'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509155'] | ['Recently Borchers has shown that in a theory of local observables, certain unitary and antiunitary operators, which are obtained from an elementary construction suggested by Bisognano and Wichmann, commute with the translation operators like Lorentz boosts and \\pct-operators, respectively. We conclude from this that... | ['1995-09-28'] |
14,914 | ['eng'] | ['Shaisultanov, R Z'] | ['Backreaction in scalar QED, Langevin equation and decoherence functional'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'field theory, scalar', 'path integral', 'Hamiltonian formalism', 'effective action', 'approximation, quasiclassical', 'Langevin equation', 'coherence, decoherence'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509154'] | ["Using the Schwinger-Keldysh (closed time path or CTP) and Feynman-Vernon influence functional formalisms we obtain a Langevin equation for the description of the charged particle creation in electric field and of backreaction of charged quantum fields and their fluctuations on time evolution of this electric field. W... | ['1995-09-29'] |
14,915 | ['eng'] | ['Cova, R J'] | ['Skyrmions scattering in (2+1)-dimensions'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'Skyrmion, interaction', 'interaction, Skyrmion', 'dimension, 3', 'symmetry, O(3)', 'energy, density', 'field equations, soliton', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509156'] | ["The scattering properties of the non-linear O(3) model in (2+1)-D, modified by the addition of both a potential-like term and a Skyrme-like term, are considered. Most of the work is numerical. The skyrmion-scattering is found to be quasi-elastic, the skyrmions' energy density profiles remaining unscathed after collis... | ['1995-09-28'] |
14,916 | ['eng'] | ['De Boer, J', 'Peeters, B', 'Skenderis, K', 'van Nieuwenhuizen, P'] | ['Loop calculations in quantum-mechanical non-linear sigma models with fermions and applications to anomalies'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 1', 'path integral', 'Hamiltonian formalism', 'propagator', 'Feynman graph', 'anomaly', 'fermion, Majorana', 'gauge field theory, Yang-Mills', 'supersymmetry', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509158'] | ["We construct the path integral for one-dimensional non-linear sigma models, starting from a given Hamiltonian operator and states in a Hilbert space. By explicit evaluation of the discretized propagators and vertices we find the correct Feynman rules which differ from those often assumed. These rules, which we previo... | ['1995-09-28'] |
14,917 | ['eng'] | ['Ceresole, Anna T', "D'Auria, R", 'Ferrara, Sergio'] | ['The symplectic structure of N=2 supergravity and its central extension'] | ['Particle Physics - Theory'] | ['talk', 'supergravity', 'coupling, matter', 'matter, coupling', 'electric field', 'magnetic field', 'duality, transformation', 'central charge', 'differential geometry, symplectic'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509160'] | ['We report on the formulation of N=2 D=4 supergravity coupled to n_V abelian vector multiplets in presence of electric and magnetic charges. General formulae for the (moduli dependent) electric and magnetic charges for the n_V+1 gauge fields are given which reflect the symplectic structure of the underlying special ge... | ['1995-09-28'] |
14,918 | ['eng'] | ['Nakatsu, T', 'Takasaki, K'] | ['Whitham-Toda hierarchy and N = 2 supersymmetric Yang-Mills theory'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'supersymmetry', 'field equations, solution', 'differential forms', 'differential equations, hierarchy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509162'] | ['The exact solution of N=2 supersymmetric SU(N) Yang-Mills theory is studied in the framework of the Whitham hierarchies. The solution is identified with a homogeneous solution of a Whitham hierarchy. This integrable hierarchy (Whitham-Toda hierarchy) describes modulation of a quasi-periodic solution of the (generaliz... | ['1995-09-28'] |
14,919 | ['eng'] | ['Martinec, Emil J', 'Warner, N'] | ['Integrable systems and supersymmetric gauge theory'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry', 'integrability', 'lattice, Toda', 'dimension, 2', 'Riemann surfaces', 'algebra, Kac-Moody', 'algebra, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509161'] | ['After the work of Seiberg and Witten, it has been seen that the dynamics of N=2 Yang-Mills theory is governed by a Riemann surface \\Sigma. In particular, the integral of a special differential \\lambda_{SW} over (a subset of) the periods of \\Sigma gives the mass formula for BPS-saturated states. We show that, for e... | ['1995-09-28'] |
14,920 | ['eng'] | ['Schwarz, J H'] | ['Superstring dualities'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'supersymmetry', 'spontaneous compactification', 'supergravity', 'Kaluza-Klein model', 'particle, multiplet', 'multiplet, particle', 'duality, transformation', 'symmetry, SL(2,Z)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509148'] | ['This talk is divided into two parts. The first part reviews some of the duality relationships between superstring theories. These relationships are interpreted as providing evidence for the existence of a unique underlying fundamental theory. The second part describes my recent work on the SL(2,Z) duality group of th... | ['1995-09-27'] |
14,921 | ['eng'] | ['Sakai, N', 'Sakai, T'] | ['Vacuum energies and effective potential in light-cone field theories'] | ['Particle Physics - Theory'] | ['Gross-Neveu model', 'Thirring model', 'symmetry, SU(N)', 'field theory, vector', 'symmetry, O(N)', 'any-dimensional', 'energy, vacuum state', 'effective potential', 'light cone gauge'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509143'] | ['Vacuum energies are computed in light-cone field theories to obtain effective potentials which determine vacuum condensate. Quantization surfaces interpolating between the light-like surface and the usual spatial one are useful to define the vacuum energies unambiguously. The Gross-Neveu, SU(N) Thirring, and O(N) vec... | ['1995-09-27'] |
14,922 | ['eng'] | ['Lawrence, A', 'Martinec, Emil J'] | ['String field theory in curved spacetime and the resolution of spacelike singularities'] | ['Particle Physics - Theory'] | ['space-time, singularity', 'string model', 'boundary condition', 'field equations', 'astrophysics, model', 'black hole', 'approximation, quasiclassical', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509149'] | ['We attempt to understand the fate of spacelike gravitational singularities in string theory via the quantum stress tensor for string matter in a fixed background. We first approximate the singularity with a homogeneous anisotropic background and review the minisuperspace equations describing the evolution of the scal... | ['1995-09-27'] |
14,923 | ['eng'] | ['Losev, A S', 'Moore, G', 'Nekrasov, N A', 'Shatashvili, S L'] | ['Four-dimensional avatars of two-dimensional RCFT'] | ['Particle Physics - Theory'] | ['talk, Los Angeles 1995/03/13', 'field theory, conformal', 'field theory, rational', 'dimension, 2', 'dimension, 4', 'Wess-Zumino-Witten model', 'twistor', 'torsion', 'fibre bundle', 'moduli space', 'vacuum state', 'perturbation theory, higher-order', 'operator, algebra', 'operator, vertex', 'correlation function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509151'] | ["We investigate a 4D analog of 2D WZW theory. The theory turns out to have surprising finiteness properties and an infinite-dimensional current algebra symmetry. Some correlation functions are determined by this symmetry. One way to define the theory systematically proceeds by the quantization of moduli spaces of holo... | ['1995-09-27'] |
14,924 | ['eng'] | ['Oh, P'] | ['Classical and quantum mechanics of non-abelian Chern-Simons particles'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'Chern-Simons term', 'dimension, 3', 'mechanics, classical', 'quantum mechanics', 'quantization', 'Hamiltonian formalism', 'phase space', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509135'] | ["We investigate the classical and quantum properties of a system of SU(N) non-Abelian Chern-Simons (NACS) particles. After a brief introduction to the subject of NACS particles, we first discuss about the most general phase space of SU(N) internal degrees of freedom or isospins which can be identified as one of the co... | ['1995-09-26'] |
14,925 | ['eng'] | ['Okazaki, A'] | ['Mesons in the massive Schwinger model on the light-cone'] | ['Particle Physics - Theory'] | ['Schwinger model, massive', 'massive, Schwinger model', 'dimension, 2', 'quantization, light front', 'Hamiltonian formalism', 'approximation, strong coupling', 'strong coupling, approximation', 'bound state', 'wave function', 'meson, model', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509136'] | ['We investigate mesons in the bosonized massive Schwinger model in the light-front Tamm-Dancoff approximation in the strong coupling region. We confirm that the three-meson bound state has a few percent fermion six-body component in the strong coupling region when expressed in terms of fermion variables, consistent wi... | ['1995-09-26'] |
14,926 | ['eng'] | ['Chen, W'] | ['Thermodynamics of an anyon system'] | ['Particle Physics - Theory'] | ['postulated particle, anyon', 'relativistic', 'gauge field theory, U(1)', 'Chern-Simons term', 'thermodynamics', 'partition function', 'correlation function', 'energy', 'particle, density', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509138'] | ['We examine the thermal behavior of a relativistic anyon system, dynamically realized by coupling a charged massive spin-1 field to a Chern-Simons gauge field. We calculate the free energy (to the next leading order), from which all thermodynamic quantities can be determined. As examples, the dependence of particle de... | ['1995-09-26'] |
14,927 | ['eng'] | ['Bernard, D'] | ['(Perturbed) conformal field theory applied to 2D disordered systems'] | ['Particle Physics - Theory'] | ['lectures, Cargese 1995/07/11', 'field theory, conformal', 'dimension, 2', 'correlation function', 'perturbation theory', 'supersymmetry', 'mathematical methods, variational', 'correlation function', 'potential, random', 'scaling', 'bibliography', 'algebra, OSp(N/N)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509137'] | ['We describe applications of (perturbed) conformal field theories to two-dimensional disordered systems. We present various methods of study~: (i) {\\it A direct method} in which we compute the explicit disorder dependence of the correlation functions for any sample of the disorder. This method seems to be specific to... | ['1995-09-26'] |
14,928 | ['eng'] | ['Howe, Paul S', 'West, Peter C'] | ["Non-perturbative Green's functions in theories with extended superconformal symmetry"] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'supersymmetry, superfield', 'supersymmetry, multiplet', 'multiplet, supersymmetry', 'invariance, conformal', 'constraint', 'Wilson loop', 'n-point function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509140'] | ["It is argued that the superconformal Ward Identities in extended supersymmetric Yang-Mills theories are powerful enough to determine the Green's functions of certain types of gauge invariant operators."] | ['1995-09-26'] |
14,929 | ['eng'] | ['Gibbons, G W', 'Rasheed, D A'] | ['SL(2,R) invariance of non-linear electrodynamics coupled to an axion and a dilaton'] | ['Particle Physics - Theory'] | ['quantum electrodynamics, nonlinear', 'field theory, dilaton', 'field theory, axion', 'field equations', 'invariance, SL(2,R)', 'tensor, energy-momentum'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509141'] | ['The most general Lagrangian for non-linear electrodynamics coupled to an axion a and a dilaton \\phi with SL(2,\\mbox{\\elevenmsb R}) invariant equations of motion is -\\half\\left(\\nabla\\phi\\right)^2 - \\half e^{2\\phi}\\left(\\nabla a\\right)^2 + \\fraction{1}{4}aF_{\\mu\\nu}\\star F^{\\mu\\nu} + L_{\\rm inv}(g_... | ['1995-09-26'] |
14,930 | ['eng'] | ['Castro, C'] | ['String theory, scale relativity and the generalized uncertainty principle'] | ['Particle Physics - Theory'] | ['string model', 'quantization', 'uncertainty relations', 'relativity theory, general', 'astrophysics'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9512044'] | ['An extension/ modification of the Stringy Heisenberg Uncertainty principle is derived within the framework of the theory of Special Scale-Relativity proposed by Nottale. Based on the fractal structure of two dimensional Quantum Gravity which has attracted considerable interest recently we conjecture that the underlyi... | ['1995-12-08'] |
14,931 | ['eng'] | ['Alekseev, A Yu', 'Klimcík, C', 'Tseytlin, Arkady A'] | ['Quantum Poisson-Lie T-duality and WZNW model'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'path integral', 'duality', 'symmetry, O(2,2)', 'symmetry, SL(2,R)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509123'] | ['A pair of conformal sigma models related by Poisson-Lie T-duality is constructed by starting with the O(2,2) Drinfeld double. The duality relates the standard SL(2,R) WZNW model to a constrained sigma model defined on SL(2,R) group space. The quantum equivalence of the models is established by using a path integral a... | ['1995-09-25'] |
14,932 | ['eng'] | ['Ford, C', "O'Raifeartaigh, Lochlainn"] | ['Canonical quantization of interacting WZW theories'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'quantization', 'Hamiltonian formalism', 'field theory, Toda', 'transformation, Becchi-Rouet-Stora'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509125'] | ['Using canonical quantization we find the Virasoro centre for a class of conformally-invariant interacting Wess-Zumino-Witten theories. The theories have a group structure similar to that of Toda theories (both abelian and non-abelian) but the usual Toda constraints on the coupling constants are relaxed and the theori... | ['1995-09-25'] |
14,933 | ['eng'] | ['Bouwknegt, P G', 'Pilch, K'] | ['The BV-algebra structure of W$_{3}$ cohomology'] | ['Particle Physics - Theory'] | ['talk, Istanbul 1994/06/06', 'gravitation, W(3)', 'cohomology', 'field theory, scalar', 'central charge, 2', 'algebra, Batalin-Vilkovisky', 'Fock space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509126'] | ['We summarize some recent results obtained in collaboration with J. McCarthy on the spectrum of physical states in W_3 gravity coupled to c=2 matter. We show that the space of physical states, defined as a semi-infinite (or BRST) cohomology of the W_3 algebra, carries the structure of a BV-algebra. This BV-algebra has... | ['1995-09-25'] |
14,934 | ['eng'] | ['Fujikawa, K'] | ['Phase operator for the photon, an index theorem, and quantum anomaly'] | ['Particle Physics - Theory'] | ['talk, Tokyo 1995/08/21', 'model, oscillator', 'photon, model', 'anomaly', 'index theorem'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509128'] | ['An index relation dim\\ ker\\ a - dim\\ ker\\ a^{\\dagger} = 1 is satisfied by the creation and annihilation operators a^{\\dagger} and a of a harmonic oscillator. Implications of this analytic index on the possible form of the phase operator are discussed. A close analogy between the present phase operator problem a... | ['1995-09-25'] |
14,935 | ['eng'] | ['Gasperini, M'] | ['Status of string cosmology'] | ['Particle Physics - Theory'] | ['lectures', 'astrophysics, string', 'perturbation, tensor', 'photon', 'spectra, graviton', 'graviton, spectra', 'background, stochastic', 'cosmic radiation, background', 'cosmic radiation, anisotropy', 'inflationary universe', 'dilaton', 'spectra, electromagnetic', 'electromagnetic, spectra', 'gravitational radiation'... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509127'] | ['I report recent studies on the evolution of perturbations in the context of the ``pre-big-bang" scenario typical of string cosmology, with emphasis on the formation of a stochastic background of relic photons and gravitons, and its possible direct/indirect observable consequences. I also discuss the possible generati... | ['1995-09-25'] |
14,936 | ['eng'] | ['Majumdar, P'] | ['Induced on-shell supersymmetry in eikonal scattering'] | ['Particle Physics - Theory'] | ['scalar particle', 'fermion, chiral', 'scattering, eikonal', 'eikonal, scattering', 'supersymmetry, on-shell', 'spinor', 'scattering amplitude', 'model, shock waves'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509129'] | ['Generically coupled neutral scalar bosons and chiral fermions are shown, in the eikonal kinematical limit, to be described by a reduced (free field) theory with N=1 {\\it on-shell} supersymmetry. {\\it Charged} scalars and spinors turn out to be described in the eikonal limit by a reduced interacting theory with a mo... | ['1995-10-02'] |
14,937 | ['eng'] | ['Shenker, S H'] | ['Another length scale in string theory?'] | ['Particle Physics - Theory'] | ['string model', 'approximation, weak coupling', 'weak coupling, approximation', 'string tension', 'coupling constant, string', 'string, coupling constant', 'black hole', 'field theory, conformal', 'dimension, 3', 'dimension, 4', 'duality', 'momentum, finite', 'spontaneous compactification', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509132'] | ['We suggest that some of the remarkable results on stringy dynamics which have been found recently indicate the existence of another dynamical length scale in string theory that, at weak coupling, is much shorter than the string scale. This additional scale corresponds to a mass \\sim m_{\\rm s}/g_{\\rm s} where m_{\\... | ['1995-09-25'] |
14,938 | ['eng'] | ['Elitzur, Shmuel', 'Forge, A', 'Giveon, Amit', 'Rabinovici, E'] | ['Effective potentials and vacuum structure in N=1 supersymmetric gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'supersymmetry, superfield', 'multiplet', 'effective potential', 'flavor, 1-4', 'vacuum state', 'critical phenomena', 'coupling, gauge', 'gauge, coupling', 'coupling, Yukawa', 'Yukawa, coupling', 'moduli space', 'gauge field theory, SU(N)'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509130'] | ['We derive the exact effective superpotential in 4d, N=1 supersymmetric SU(2) gauge theories with N_A triplets and 2N_f doublets of matter superfields. We find the quantum vacua of these theories; the equations of motion (for N_A=1) can be reorganized into the singularity conditions of an elliptic curve. From the phas... | ['1995-09-25'] |
14,939 | ['eng'] | ['Federbush, P G'] | ['A gauge-invariant regularization of the Weyl determinant using wavelets'] | ['Particle Physics - Theory'] | ['fermion, chiral', 'gauge field theory', 'operator, determinant', 'regularization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509131'] | ['In line with a previous paper, a gauge-invariant regularization is developed for the Weyl determinant of a Euclidean gauged chiral fermion. We restrict ourselves to gauge configurations with the A field going to zero at infinity in Euclidean space; and thus restrict gauge transformations to those with U the identity ... | ['1995-09-25'] |
14,940 | ['eng'] | ['Banerjee, R'] | ['Duality and bosonisation in arbitrary dimensions'] | ['Particle Physics - Theory'] | ['Thirring model, massive', 'massive, Thirring model', 'Schwinger model, massive', 'massive, Schwinger model', 'any-dimensional', 'duality, transformation', 'bosonization'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509133'] | ['A functional integral approach is developed to discuss the bosonisation of the massive Thirring and the massive Schwinger models in arbitrary D-dimensions. It is found that these models, to {\\it all} orders in the inverse fermi mass, bosonise to a theory involving a usual gauge field and a (D-2) rank antisymmetric (... | ['1995-09-25'] |
14,941 | ['eng'] | ['McCarthy, J'] | ['Chiral ring in the 4D W$_{3}$ string'] | ['Particle Physics - Theory'] | ['string model', 'gravitation', 'gauge field theory, W(3)', 'transformation, diffeomorphism', 'operator, algebra', 'cohomology, Becchi-Rouet-Stora'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509134'] | ["I summarize some recent results obtained in collaboration with P.~Bouwknegt and K.~Pilch on the spectrum of physical states in \\cW_3 gravity coupled to c=2 matter. In particular, it is shown that the algebra of operators corresponding to physical states -- defined as a semi-infinite (or BRST) cohomology of the \\cW_... | ['1995-09-25'] |
14,942 | ['eng'] | ['Bouwknegt, P G', 'McCarthy, J', 'Pilch, K'] | ['The W$_{3}$ algebra'] | ['Particle Physics - Theory'] | ['book', 'algebra, W(3)', 'cohomology, Becchi-Rouet-Stora', 'algebra, Batalin-Vilkovisky', 'Verma module', 'string model', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509119'] | ['The noncritical D=4 W_3 string is a model of W_3 gravity coupled to two free scalar fields. In this paper we discuss its BRST quantization in direct analogy with that of the D=2 (Virasoro) string. In particular, we calculate the physical spectrum as a problem in BRST cohomology. The corresponding operator cohomology ... | ['1995-09-22'] |
14,943 | ['eng'] | ['Dick, R'] | ['Self-trapping of the dilaton'] | ['Particle Physics - Theory'] | ['field theory, dilaton', 'dimension, 3', 'dimension, 4', 'duality', 'astrophysics, fundamental constant', 'Kaluza-Klein model', 'string model'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509118'] | ["The dilaton in three dimensions does not roll. Witten's conjecture that duality between theories in three and four dimensions solves the cosmological constant problem thus may also solve the dilaton problem in string theory."] | ['1995-09-22'] |
14,944 | ['eng'] | ['Fort, H', 'Gambini, R'] | ['Fractional statistics in three dimensions'] | ['Particle Physics - Theory'] | ['vortex, magnetic', 'charge, electric', 'fermion boson, transformation', 'statistics, fractional', 'quantum electrodynamics, scalar', 'dimension, 3', 'string model', 'magnetic monopole', 'Higgs model', 'lattice field theory, compact', 'partition function'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509114'] | ['We show that a (3+1)-dimensional system composed of an open magnetic vortex and an electrical point charge exhibits the phenomenon of Fermi-Bose transmutation. In order to provide the physical realization of this system we focus on the lattice compact scalar electrodynamics SQED_c whose topological excitations are op... | ['1995-09-22'] |
14,945 | ['eng'] | ['Fülöp, G'] | ['Gauge fixing, co-BRST and time evolution in QED'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'dependence, gauge', 'transformation, Becchi-Rouet-Stora', 'time dependence', 'constraint', 'phase space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509111'] | ['From trivial BRST-invariant (non-inner product) states in free electrodynamics well defined inner product singlets are obtained by acting on them by a gauge-fixing regulator. The co-BRST operator and some further gauge-fixing regulators are found. The relation between gauge fixing and time evolution of both the trivi... | ['1995-09-22'] |
14,946 | ['eng'] | ['Visnjic, V'] | ['Strong coupling regime in two-dimensional large-N scalar quantum chromodynamics'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N)', 'dimension, 2', 'quark, scalar', 'bound state, wave function', 'mass, ground state', 'ground state, mass', 'expansion 1/N'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509117'] | ['Two-dimensional large-N quantum chromodynamics with scalar quarks is considered with particular emphasis on its strong coupling regime which has not been studied so far. Techniques necessary to deal with the infinitely oscillatory bound state wave functions in the strong coupling regime are developed. I derive an est... | ['1995-09-22'] |
14,947 | ['eng'] | ['Duff, Michael J'] | ['Electric/magnetic duality and its stringy origins'] | ['Particle Physics - Theory'] | ['talk, Moscow 1995/06/12', 'gauge field theory, Yang-Mills', 'supersymmetry', 'higher-dimensional', 'duality', 'string model', 'field equations, monopole', 'black hole', 'symmetry, gauge', 'membrane model', 'bibliography', 'talk, Baltimore 1995/03/22', 'talk, Blois 1995\\06\\20', 'gauge field theory, Yang-Mills', 'sup... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509106'] | ['We review electric/magnetic duality in N=4 (and certain N=2) globally supersymmetric gauge theories and show how this duality, which relates strong to weak coupling, follows as a consequence of a string/string duality. Black holes, eleven dimensions and supermembranes also have a part to play in the big picture.'] | ['1995-09-21'] |
14,948 | ['eng'] | ['Schellekens, B', 'Schweigert, C'] | ['The resolution of field identification fixed points in diagonal coset theories'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'coset space', 'algebra, Kac-Moody', 'algebra, representation', 'S-matrix'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509105'] | ["The fixed point resolution problem is solved for diagonal coset theories. The primary fields into which the fixed points are resolved are described by submodules of the branching spaces, obtained as eigenspaces of the automorphisms that implement field identification. To compute the characters and the modular S-matri... | ['1995-09-21'] |
14,949 | ['eng'] | ['Nogueira, F S', 'Svaiter, N F'] | ['Dimensional transmutation and symmetry breaking in Maxwell-Chern-Simons scalar QED'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'Chern-Simons term', 'field theory, scalar', 'effective action, Euclidean', 'symmetry breaking', 'perturbation theory, higher-order', 'transmutation, dimensional', 'dimension, 3', 'dimension, 4'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509109'] | ['The mechanism of dimensional transmutation is discussed in the context of Maxwell-Chern-Simons scalar QED. The method used is non-perturbative. The effective potential describes a broken symmetry state. It is found that the symmetry breaking vacuum is more stable when the Chern-Simons mass is different from zero. Pac... | ['1995-09-21'] |
14,950 | ['eng'] | ['Belvedere, L V', 'Filho, H B', 'Gonçalves-Carvalhaes, C', 'Natividade, C P'] | ['Isomorphic operator representations of chiral Schwinger model'] | ['Particle Physics - Theory'] | ['Schwinger model, chiral', 'dimension, 2', 'effective Lagrangian', 'anomaly', 'operator, algebra', 'current algebra', 'linear spaces, Hilbert space'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509107'] | ['The isomorphism between gauge noninvariant and gauge invariant descriptions of the anomalous chiral Schwinger model is implemented at the operator level. A treatment of the model which carefully controls the Hilbert space associated with the Wightman functions that define the model shows that: (i) the claimed equival... | ['1995-09-21'] |
14,951 | ['eng'] | ['Zyablyuk, K N'] | ['Universal scheme of minimal reduction of usual and dual N=1, D=10 supergravity to the Minkowsky space'] | ['Particle Physics - Theory'] | ['supergravity', 'dimension, 10', 'constraint', 'duality', 'dimensional reduction'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9603171'] | ['The reduction from N=1, D=10 to N=4, D=4 supergravity with the Yang-Mills matter is considered. For this purpose a set of constraints is imposed in order to exclude six additional abelian matter multiplets and conserve the supersymmetry. We consider both the cases of usual and dual N=1, D=10 supergravity using the su... | ['1996-03-27'] |
14,952 | ['eng'] | ['Nill, Florian', 'Szlachányi, K'] | ['Quantum chains of Hopf algebras with quantum double cosymmetry'] | ['Particle Physics - Theory'] | ['quantum group', 'algebra, C*', 'algebra, Hopf', 'algebra, representation', 'superselection rule'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509100'] | ['Given a finite dimensional C^*-Hopf algebra H and its dual H^ we construct the infinite crossed product A=... x H x H^ x H ... and study its superselection sectors in the framework of algebraic quantum field theory. A is the observable algebra of a generalized quantum spin chain with H-order and H^-disorder symmetrie... | ['1995-09-19'] |
14,953 | ['eng'] | ['Sokatchev, Emery S'] | ['An action for N=4 supersymmetric self-dual Yang-Mills theory'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'supersymmetry, superspace', 'superspace, harmonic', 'field theory, action', 'constraint', 'Chern-Simons term', 'symmetry, SO(2,2)', 'duality'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509099'] | ['The N=4 supersymmetric self-dual Yang-Mills theory in a four- dimensional space with signature (2,2) is formulated in harmonic superspace. The on-shell constraints of the theory are reformulated in the equivalent form of vanishing curvature conditions for three gauge connections (one harmonic and two space-time). The... | ['1995-09-19'] |
14,954 | ['eng'] | ['Athanasiu, G G', 'Floratos, Emmanuel G', 'Nicolis, S'] | ['Holomorphic quantization on the torus and finite quantum mechanics'] | ['Particle Physics - Theory'] | ['quantum group, SL(2,R)', 'quantum mechanics, finite', 'phase space', 'space-time, torus', 'group theory, Heisenberg'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509098'] | ["We construct explicitly the quantization of classical linear maps of SL(2,{\\Bbb R}) on toroidal phase space, of arbitrary modulus, using the holomorphic (chiral) version of the metaplectic representation. We show that Finite Quantum Mechanics (FQM) on tori of arbitrary integer discretization, is a consistent restric... | ['1995-09-19'] |
14,955 | ['eng'] | ['Ghosh, A', 'Mitra, P'] | ['Entropy of extremal black hole solutions of string theory'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'spontaneous compactification, torus', 'effective action', 'field equations, soliton', 'black hole', 'entropy', 'thermodynamics'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509090'] | ['For extremal black holes, the thermodynamic entropy is not proportional to the area. The general form allowed by thermodynamics is worked out for three classes of extremal black hole solutions of string theory and shown to be consistent with the entropy calculated from the density of elementary string states. On the ... | ['1995-09-19'] |
14,956 | ['eng'] | ['Nakazawa, N'] | ['Stochastic quantization of matrix models and field theory of non-orientable strings'] | ['Particle Physics - Theory'] | ['talk, Moscow 1995/06/12', 'quantization, stochastic', 'matrix model', 'loop space', 'continuum limit', 'string model', 'quantum gravity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509087'] | ["In quantizing gravity based on stochastic quantization method, the stochastic time plays a role of the proper time. We study 2D and 4D Euclidean quantum gravity in this context. By applying stochastic quantization method to real symmetric matrix models, it is shown that the stochastic process defined by the Langevin ... | ['1995-09-19'] |
14,957 | ['eng'] | ['Klimcík, C'] | ['Poisson-Lie T-duality'] | ['Particle Physics - Theory'] | ['talk', 'string model', 'duality, transformation', 'duality, nonabelian', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509095'] | ['A description of dual non-Abelian duality is given, based on the notion of the Drinfeld double. The presentation basically follows the original paper \\cite{KS2}, written in collaboration with P. \\v Severa, but with the emphasis put rather on algebraic than geometric aspect of the construction and with a concrete ex... | ['1995-09-19'] |
14,958 | ['eng'] | ['Gràcia, X', 'Pons, J M'] | ['Gauge transformations for higher-order lagrangians'] | ['Particle Physics - Theory'] | ['field theory, action', 'derivative, high', 'symmetry, transformation', 'conservation law', 'transformation, gauge'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509094'] | ["Noether's symmetry transformations for higher-order lagrangians are studied. A characterization of these transformations is presented, which is useful to find gauge transformations for higher-order singular lagrangians. The case of second-order lagrangians is studied in detail. Some examples that illustrate our resul... | ['1995-09-19'] |
14,959 | ['eng'] | ['Liberati, S', 'Pollifrone, G'] | ['Entropy and topology for manifolds with boundaries'] | ['Particle Physics - Theory'] | ['space-time', 'topology', 'boundary condition', 'thermodynamics', 'partition function', 'black hole'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509093'] | ['In this work a deep relation between topology and thermodynamical features of manifolds with boundaries is shown. The expression for the Euler characteristic, through the Gauss- Bonnet integral, and the one for the entropy of gravitational instantons are proposed in a form which makes the relation between them self-e... | ['1995-09-19'] |
14,960 | ['eng'] | ['Sathiapalan, B'] | ['The proper time equation and the Zamolodchikov metric'] | ['Particle Physics - Theory'] | ['field theory, conformal', 'dimension, 2', 'two-point function', 'renormalization group, beta function', 'operator, vertex', 'string model, open', 'electromagnetic field'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509097'] | ['The connection between the proper time equation and the Zamolodchikov metric is discussed. The connection is two-fold: First, as already known, the proper time equation is the product of the Zamolodchikov metric and the renormalization group beta function. Second, the condition that the two-point function is the Zamo... | ['1995-09-19'] |
14,961 | ['eng'] | ['Periwal, V'] | ['Infrared regularization of non-abelian gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'infrared problem', 'regularization', 'invariance, Becchi-Rouet-Stora'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509084'] | ['It is shown that there is a unique BRS-invariant action for non-Abelian gauge theories which includes a mass term for the gauge bosons. While the BRS operator is not nilpotent, the Zinn-Justin equation generalizes in a simple way so that the renormalization of the theory is consistent with the infrared regularization... | ['1995-09-15'] |
14,962 | ['eng'] | ['Avramidi, I G'] | ['The heat kernel approach for calculating the effective action in quantum field theory and quantum gravity'] | ['Particle Physics - Theory'] | ['field theory, scalar', 'quantum gravity', 'path integral', 'effective action', 'regularization, heat kernel', 'perturbation theory, higher-order', 'asymptotic expansion', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509077'] | ['A short informal overview about recent progress in the calculation of the effective action in quantum gravity is given. I describe briefly the standard heat kernel approach to the calculation of the effective action and discuss the applicability of the Schwinger - De Witt asymptotic expansion in the case of strong ba... | ['1995-09-15'] |
14,963 | ['eng'] | ['Gürses, M', 'Sermutlu, E'] | ['Static spherically symmetric solutions to Einstein-Maxwell dilaton field equations in D dimensions'] | ['Particle Physics - Theory'] | ['relativity theory, general', 'string model, solution', 'gauge field theory, U(1)', 'field theory, dilaton', 'any-dimensional', 'symmetry, rotational', 'field equations, solution'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509076'] | ['We classify the spherically symmetric solutions of the Einstein-Maxwell Dilaton field equations in D dimensions and find some exact solutions of the string theory at all orders of the string tension parameter. We also show the uniqueness of the black hole solutions of this theory in static axially symmetric spacetime... | ['1995-09-15'] |
14,964 | ['eng'] | ['Bachas, C P'] | ['Magnetic supersymmetry breaking'] | ['Particle Physics - Theory'] | ['talk', 'field theory, monopole', 'supersymmetry, symmetry breaking'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509067'] | ['I discuss the breaking of space-time supersymmetry when magnetic monopole fields are switched on in compact dimensions.'] | ['1995-09-14'] |
14,965 | ['eng'] | ['Johnson, C V', 'Kaloper, N', 'Khuri, R R', 'Myers, R C'] | ['Is string theory a theory of strings?'] | ['Particle Physics - Theory'] | ['string model, heterotic', 'effective action', 'spontaneous compactification', 'field equations, soliton', 'membrane model, p-brane'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509070'] | ['Recently a great deal of evidence has been found indicating that type IIA string theory compactified on K3 is equivalent to heterotic string theory compactified on T^4. Under the transformation which relates the two theories, the roles of fundamental and solitonic string solutions are interchanged. In this letter we ... | ['1995-09-14'] |
14,966 | ['eng'] | ['Chatterjee, R'] | ['Exact partition function and boundary state of 2-D massive Ising field theory with boundary magnetic field'] | ['Particle Physics - Theory'] | ['Ising model, massive', 'massive, Ising model', 'dimension, 2', 'boundary condition', 'bound state', 'magnetic field', 'partition function', 'renormalization group', 'analytic properties'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509071'] | ["We compute the exact partition function, the universal ground state degeneracy and boundary state of the 2-D Ising model with boundary magnetic field at off-critical temperatures. The model has a domain that exhibits states localized near the boundaries. We study this domain of boundary bound state and derive exact e... | ['1995-09-14'] |
14,967 | ['eng'] | ['Ichinose, S', 'Ikeda, N'] | ['New formulation of anomaly, anomaly formula and graphical representation'] | ['Particle Physics - Theory'] | ['anomaly', 'propagator', 'regularization, heat kernel', 'dimension, 2', 'dimension, 4', 'tensor, representation', 'fermion', 'gravitation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509073'] | ["A general approach to anomaly in quantum field theory is newly formulated by use of the propagator theory in solving the heat-kernel equation. We regard the heat-kernel as a sort of the point-splitting regularization in the space(-time) manifold. Fujikawa's general standpoint that the anomalies come from the path-int... | ['1995-09-14'] |
14,968 | ['eng'] | ['Easther, R', 'Wands, D'] | ['Tree-level string cosmology'] | ['Particle Physics - Theory'] | ['string model', 'effective action', 'relativity theory, general', 'field theory, scalar', 'astrophysics, model', 'astrophysics, string', 'field equations, solution', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509074'] | ['In this paper we examine the classical evolution of a cosmological model derived from the low-energy tree-level limit of a generic string theory. The action contains the metric, dilaton, central charge and an antisymmetric tensor field. We show that with a homogeneous and isotropic metric, allowing spatial curvature,... | ['1995-09-14'] |
14,969 | ['eng'] | ['Intriligator, K', 'Seiberg, N'] | ['Lectures on supersymmetric gauge theories and electric-magnetic duality'] | ['Particle Physics - Theory'] | ['lectures, Erice 1996/07/03', 'supersymmetry', 'gauge field theory, Yang-Mills', 'duality', 'moduli space', 'vacuum state', 'matter', 'effective action', 'Wess-Zumino model', 'gauge field theory, SU(N)', 'instanton', 'confinement', 'fixed point', 'field theory, deformation', 'gauge field theory, SO(N)', 'monodromy', '... | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509066'] | ['We review some of the recent work on the dynamics of four dimensional, supersymmetric gauge theories. The kinematics are largely determined by holomorphy and the dynamics are governed by duality. The results shed light on the phases of gauge theories. Some results and interpretations which have not been published bef... | ['1995-09-13'] |
14,970 | ['eng'] | ['Shapiro, I L'] | ['Perturbative approach to the two-dimensional quantum gravity'] | ['Particle Physics - Theory'] | ['talk, Moscow 1995/06/11', 'quantum gravity', 'string model', 'dimension, 2', 'perturbation theory, higher-order', 'renormalization', 'invariance, Lorentz', 'effective potential', 'gravitation, induced', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509065'] | ['The main part of this presentation is a review of the previous original works on the perturbative covariant approach to the 2-dimensional quantum gravity. We discuss the renormalization of the two-dimensional dilaton gravity in a harmonic gauge, the form of the quantum corrections to the classical potential, and the ... | ['1995-09-13'] |
14,971 | ['eng'] | ['Naftulin, S', 'Odintsov, S D'] | ['On higher-derivative dilatonic gravity in two dimensions'] | ['Particle Physics - Theory'] | ['gravitation, higher-order', 'field theory, dilaton', 'dimension, 2', 'quantum gravity', 'field theory, scalar', 'field theory, tensor', 'effective action', 'renormalization group'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509064'] | ['We discuss lowering the order of the two-dimensional scalar-tensor Rb2 quantum gravity, by mapping the most general version of the model to a multi-dilaton gravity, which is essentially the sigma-model coupled with Jackiw-Teitelboim-like gravity. In the continuation of our previous research, we calculate the divergen... | ['1995-09-13'] |
14,972 | ['eng'] | ['Tomaras, T N'] | ['Search for solitons in two-Higgs extensions of the standard model'] | ['Particle Physics - Theory'] | ['talk, Maynooth 1995/05/24', 'soliton, topological', 'Higgs particle, multiplet', 'doublet, 2', 'field theory, scalar', 'gauge field theory, SU(2) x U(1)', 'sphaleron', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509063'] | ['We report on the status of our search for quasi-topological solitons of various dimensions in realistic field theoretical models of condensed matter and of elementary particle physics.'] | ['1995-09-13'] |
14,973 | ['eng'] | ['Kuzenko, S M', 'Lyakhovich, S L', 'Segal, A Yu', 'Sharapov, A A'] | ['Massive spinning particle on anti-de Sitter space'] | ['Particle Physics - Theory'] | ['space-time, anti-de Sitter', 'particle, massive', 'massive, particle', 'spin', 'Hamiltonian formalism', 'phase space', 'energy'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509062'] | ["To describe a massive particle with fixed, but arbitrary, spin on d=4 anti-de Sitter space M^4, we propose the point-particle model with configuration space {\\cal M}^6 = M^{4}\\times S^{2}, where the sphere S^2 corresponds to the spin degrees of freedom. The model possesses two gauge symmetries expressing strong con... | ['1995-09-13'] |
14,974 | ['eng'] | ['Gattringer, C R'] | ['Discussing the U(1)-problem of QED$_{2}$ without instantons'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'dimension, 2', 'fermion', 'vacuum state', 'gauge field theory, U(1) problem', 'path integral', 'correlation function', 'bosonization', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9602027'] | ['We construct QED_2 with mass and flavor and an extra Thirring term. The vacuum expectation values are carefully decomposed into clustering states using the U(1)-axial symmetry of the considered operators and a limiting procedure. The properties of the emerging expectation functional are compared to the proposed theta... | ['1996-02-07'] |
14,975 | ['eng'] | ['Pietro, R'] | ['The quaternionic Dirac lagrangian'] | ['Particle Physics - Theory'] | ['field theory, Dirac', 'algebra, quaternion', 'mathematical methods, variational'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509059'] | ['We discuss the use of the variational principle within quaternionic quantum mechanics. This is non-trivial because of the non commutative nature of quaternions. We derive the Dirac Lagrangian density corresponding to the two-component Dirac equation. This Lagrangian is complex projected as anticipated in previous art... | ['1995-09-12'] |
14,976 | ['eng'] | ['Ahn, C', 'Koo, W M'] | ['Exact boundary S-matrices of the supersymmetric sine-Gordon theory on a half line'] | ['Particle Physics - Theory'] | ['sine-Gordon model', 'dimension, 2', 'S-matrix', 'integrability', 'Yang-Baxter equation', 'boundary condition', 'supersymmetry', 'field theory, conformal'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509056'] | ['Using the boundary Yang-Baxter equations and exact results on the bulk S-matrices, we compute exact boundary scattering amplitudes of the supersymmetric sine-Gordon model with integrable boundary potentials.'] | ['1995-09-12'] |
14,977 | ['eng'] | ['De Leo, S'] | ['Duffin-Kemmer-Petiau equation on the quaternion field'] | ['Particle Physics - Theory'] | ['Klein-Gordon equation', 'Duffin-Kemmer equation', 'quantization, 1', 'algebra, quaternion'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509058'] | ['We show that the Klein-Gordon equation on the quaternion field is equivalent to a pair of DKP equations. We shall also prove that this pair of DKP equations can be taken back to a pair of new KG equations. We shall emphasize the important difference between the standard and the new KG equations. We also present some ... | ['1995-09-14'] |
14,978 | ['eng'] | ['Bimonte, G', 'Lozano, G S'] | ['Can symmetry non-restoration solve the monopole problem?'] | ['Particle Physics - Theory'] | ['grand unified theory', 'symmetry breaking', 'inflationary universe', 'field theory, monopole', 'perturbation theory, higher-order', 'numerical calculations'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509060'] | ['We reexamine a recently proposed non-inflationary solution to the monopole problem, based on the possibility that spontaneously broken Grand-Unified symmetries do not get restored at high temperature. We go beyond leading order by studying the self-consistent one-loop equations of the model. We find large next-to-lea... | ['1995-09-12'] |
14,979 | ['eng'] | ['Ramallo, A V', 'Roy, S'] | ['Topological supergravity structure of non-critical superstring theories'] | ['Particle Physics - Theory'] | ['string model', 'supersymmetry', 'supergravity', 'field theory, topological', 'tensor, energy-momentum', 'operator product expansion', 'bosonization', 'transformation, Becchi-Rouet-Stora'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509061'] | ['We obtain a bosonization prescription that allows to represent the energy-momentum tensor and supersymmetry generators of non-critical superstring theories with minimal matter as those of topological supergravity. Superstrings with N=1 and N=2 world-sheet supersymmetry are considered. The topological symmetry associa... | ['1995-09-12'] |
14,980 | ['eng'] | ['Lee, C Y', 'Hwang, D S'] | ['BRST quantization of gauge theory in noncommutative geometry'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(N/M)', 'Hamiltonian formalism', 'quantization, Becchi-Rouet-Stora', 'differential geometry, noncommutative', 'symmetry, spontaneously broken'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9512215'] | ['The BRST quantization of a gauge theory in noncommutative geometry is carried out in the ``matrix derivative" approach. BRST/anti-BRST transformation rules are obtained by applying the horizontality condition, in the superconnection formalism. A BRST/anti-BRST invariant quantum action is then constructed, using an ad... | ['1996-01-09'] |
14,981 | ['eng'] | ['Saidi, E H'] | ['On the N=2 U(1) supercovariant Lax formalism and WA(n-1|n-1)$^{(1}$) symmetries'] | ['Particle Physics - Theory'] | ['algebra, W(N,M)', 'algebra, representation', 'algebra, Lie', 'supersymmetry, algebra', 'algebra, affine', 'Miura transformation', 'operator, Lax', 'algebra'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509040'] | ['We introduce the concept of conformal spin gradation of the untwisted affine Lie superalgebra \\hat A(n-1\\vert n-1)^{(1)} to study the W\\hat A (n-1\\vert n-1)^{(1)} Miura transformation. We show that the essential of \\hat A(n-1\\vert n-1)^{(1)} may be read from the conformal spin gradation of the canonical vector ... | ['1995-09-11'] |
14,982 | ['eng'] | ['Curio, G'] | ['Topological partition function and string-string duality'] | ['Particle Physics - Theory'] | ['string model', 'partition function, topological', 'duality, transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509042'] | ['The evidence for string/string-duality can be extended from the matching of the vector couplings to gravitational couplings. In this note this is shown in the rank three example, the closest stringy analog of the Seiberg/Witten-setup, which is related to the Calabi-Yau WP^4_{1,1,2,2,6}(12). I provide an exact analyti... | ['1995-09-11'] |
14,983 | ['eng'] | ['Kiritsis, Elias B', 'Kounnas, Costas'] | ['Instabilities in strong magnetic fields in string theory'] | ['Particle Physics - Theory'] | ['talk', 'string model, heterotic', 'magnetic field', 'ground state', 'effective action', 'sigma model, nonlinear', 'field equations, solution', 'perturbation theory', 'energy levels'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509043'] | ['We construct groundstates of the string with non-zero mass gap and non-trivial chromo-magnetic fields as well as curvature. The exact spectrum as function of the chromo-magnetic fields and curvature is derived. We examine the behavior of the spectrum, and find that there is a maximal value for the magnetic field H_{\... | ['1995-09-11'] |
14,984 | ['eng'] | ['Watts, P'] | ['Generalized Wess-Zumino consistency conditions for pure W$_{3}$ gravity anomalies'] | ['Particle Physics - Theory'] | ['gravitation', 'dimension, 2', 'gauge field theory, W(3)', 'Ward identity', 'anomaly'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509044'] | ['General expressions for the anomalies appearing in pure W_3 gravity are found by requiring that they satisfy a modified version of the Wess-Zumino consistency conditions in which the Ward identities are treated as nonvanishing quantities.'] | ['1995-09-11'] |
14,985 | ['eng'] | ['Brink, Lars', 'Vasilev, M A'] | ['Generalized Toda field theories'] | ['Particle Physics - Theory'] | ['field theory, Toda', 'dimension, 2', 'gauge field theory', 'current algebra', 'algebra, representation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509045'] | ['In this paper we introduce a unified approach to Toda field theories which allows us to formulate the classes of A_n, B_n and C_n models as unique models involving an arbitrary continuous parameter \\nu. For certain values of \\nu , the model describes the standard Toda theories. For other values of \\nu it defines a... | ['1995-09-11'] |
14,986 | ['eng'] | ['Carvalho, M', 'Vilar, L C Q', 'Sasaki, C A G', 'Sorella, S P'] | ['BRS cohomology of zero curvature systems; 2, the noncomplete ladder case'] | ['Particle Physics - Theory'] | ['gauge field theory, Yang-Mills', 'algebra, Becchi-Rouet-Stora', 'algebra, representation', 'cohomology'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509048'] | ['The Yang-Mills type theories and their BRS cohomology are analysed within the zero curvature formalism.'] | ['1995-09-11'] |
14,987 | ['eng'] | ['Pasti, P', 'Sorokin, D P', 'Tonin, M'] | ['Space-time symmetries in duality symmetric models'] | ['Particle Physics - Theory'] | ['talk', 'duality, transformation', 'gauge field theory, abelian', 'invariance, Lorentz', 'field theory, action', 'boson, chiral', 'fermion', 'dimension, 2', 'dimension, 4', 'supersymmetry'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509052'] | ['A way of covariantizing duality symmetric actions is proposed. As examples considered are a manifestly space-time invariant duality--symmetric action for abelian gauge fields coupled to axion-dilaton fields and gravity in D=4, and a Lorentz-invariant action for chiral bosons in D=2. The latter is shown to admit a man... | ['1995-09-11'] |
14,988 | ['eng'] | ['Tseytlin, Arkady A'] | ['On singularities of spherically symmetric backgrounds in string theory'] | ['Particle Physics - Theory'] | ['string model', 'string, closed', 'effective action', 'space-time', 'symmetry, rotational', 'field equations, solution', 'duality, transformation'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509050'] | ["We suggest that for singular rotationally invariant closed string backgrounds which need sources for their support at the origin (in particular, for special plane waves and fundamental strings) certain `trivial' \\a'-corrections (which are usually ignored since in the absence of sources they can be eliminated by a fi... | ['1995-09-11'] |
14,989 | ['eng'] | ['Yoshida, A'] | ['Increasing potentials in non-abelian and abelian gauge theories'] | ['Particle Physics - Theory'] | ['gauge field theory, U(1)', 'gauge field theory, SU(2)', 'field equations, solution', 'energy', 'potential'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509053'] | ['An exact solution for an SU(2) Yang-Mills field coupled to a scalar field is given. This solution has potentials with a linear and Coulomb part. This may have some physical importance since many phenomenological QCD studies assume a linear plus Coulomb potential. Usually the linear potential is motivated with lattice... | ['1995-09-11'] |
14,990 | ['eng'] | ['Ghoroku, K', 'Kaneko, K'] | ['On the validity of ADM formulation in 2d quantum gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'dimension, 2', 'path integral, measure', 'loop space', 'field theory, scalar', 'effective action'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509055'] | ['We investigate 2d gravity quantized in the ADM formulation, where only the loop length l(z) is retained as a dynamical variable of the gravitation, in order to get an intuitive physical insight of the theory. The effective action of l(z) is calculated by adding scalar fields of conformal coupling, and the problems of... | ['1995-09-12'] |
14,991 | ['eng'] | ['Hindawi, A A', 'Ovrut, B A', 'Waldram, D'] | ['SUSY breaking in four-dimensional supergravity'] | ['Particle Physics - Theory'] | ['talk, Kyoto 1995/08/21', 'gravitation, action', 'derivative, high', 'supersymmetry, superspace', 'supergravity'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509054'] | ['A discussion of the number of degrees of freedom, and their dynamical properties, in higher derivative gravitational theories is presented. The complete non-linear sigma model for these degrees of freedom is exhibited using the method of auxiliary fields. As a by-product we present a consistent non-linear coupling of... | ['1995-09-11'] |
14,992 | ['eng'] | ['Sevostyanov, A V'] | ['The classical R-matrix method for nonlinear sigma-model'] | ['Particle Physics - Theory'] | ['sigma model, nonlinear', 'dimension, 2', 'Hamiltonian formalism', 'R-matrix', 'coset space', 'operator, Lax'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509030'] | ["The canonical Poisson structure of nonlinear sigma-model is presented as a Lie-Poisson r-matrix bracket on coadjoint orbits. It is shown that the Poisson structure of this model is determined by some `hidden singularities' of the Lax matrix."] | ['1995-09-08'] |
14,993 | ['eng'] | ['Castellani, L', 'Perotto, A'] | ['Free differential algebras'] | ['Particle Physics - Theory'] | ['talk, Prague 1995/06/22', 'differential geometry', 'transformation, gauge', 'space-time', 'group theory, Poincare', 'differential forms', 'algebra, Lie'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509031'] | ['The gauging of free differential algebras (FDA\'s) produces gauge field theories containing antisymmetric tensors. The FDA\'s extend the Cartan-Maurer equations of ordinary Lie algebras by incorporating p-form potentials (p > 1). We study here the algebra of FDA transformations. To every p-form in the FDA we associat... | ['1995-09-08'] |
14,994 | ['eng'] | ['Grigorian, G V', 'Grigorian, R P'] | ['Pseudoclassical neutrino in the external electromagnetic field'] | ['Particle Physics - Theory'] | ['neutrino, magnetic moment', 'magnetic moment, neutrino', 'electromagnetic field, external field', 'mechanics, classical', 'quantum mechanics', 'Foldy-Wouthuysen transformation', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509038'] | ['The problem of the passage of the neutral massless particle with anomalous magnetic moment through the external electromagnetic field is considered both in pseudoclassical and quantum mechanics. The quantum description uses the hamiltonian in the Foldy--Wouthuysen representation, obtained from the pseudoclassical ham... | ['1995-09-12'] |
14,995 | ['eng'] | ['Guo, S H', 'Chen, Q Z', 'Fang, X', 'Liu, J', 'Luo, X Q', 'Zheng, W'] | ['Truncated eigenvalue equation and long wavelength behavior of lattice gauge theory'] | ['Particle Physics - Theory'] | ['talk', 'lattice field theory', 'gauge field theory, SU(2)', 'field theory, U(1)', 'continuum limit', 'vacuum state, wave function', 'scaling', 'sigma model', 'dimension, 3', 'dimension, 2', 'mass, gap', 'gap, mass', 'numerical calculations', 'Hamiltonian formalism'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509032'] | ['We review our new method, which might be the most direct and efficient way for approaching the continuum physics from Hamiltonian lattice gauge theory. It consists of solving the eigenvalue equation with a truncation scheme preserving the continuum limit. The efficiency has been confirmed by the observations of the s... | ['1995-09-08'] |
14,996 | ['eng'] | ['Langmann, E', 'Mickelsson, J'] | ['Scattering matrix in external field problems'] | ['Particle Physics - Theory'] | ['fermion, field theory', 'background field', 'S-matrix', 'quantization', 'operator, algebra', 'gauge field theory, Yang-Mills'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509034'] | ['We discuss several aspects of second quantized scattering operators \\hat S for fermions in external time dependent fields. We derive our results on a general, abstract level having in mind as a main application potentials of the Yang--Mills type and in various dimensions. We present a new and powerful method for pro... | ['1995-09-08'] |
14,997 | ['eng'] | ['Brandt, F', 'Troost, W', 'Van Proeyen, A'] | ['The BRST-antibracket cohomology of 2d gravity'] | ['Particle Physics - Theory'] | ['quantum gravity', 'field theory, scalar', 'dimension, 2', 'invariance, conformal', 'transformation, Becchi-Rouet-Stora', 'anomaly', 'differential geometry', 'bibliography'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509035'] | ["We compute completely the BRST--antibracket cohomology on local functionals in two-dimensional Weyl invariant gravity for given classical field content (two dimensional metric and scalar matter fields) and gauge symmetries (two dimensional diffeomorphisms and local Weyl transformations). This covers the determination... | ['1995-09-08'] |
14,998 | ['eng'] | ['Pinsky, S S', 'Kalloniatis, A C'] | ['Light-front QCD(1+1) coupled to adjoint scalar matter'] | ['Particle Physics - Theory'] | ['gauge field theory, SU(2)', 'field theory, scalar', 'dimension, 2', 'quantization, light front', 'Hamiltonian formalism', 'current algebra', 'regularization, point splitting'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509036'] | ["We consider adjoint scalar matter coupled to QCD(1+1) in light-cone quantization on a finite `interval' with periodic boundary conditions. We work with the gauge group SU(2) which is modified to {\\rm{SU(2)/Z_2}} by the non-trivial topology. The model is interesting for various nonperturbative approaches because it i... | ['1995-09-08'] |
14,999 | ['eng'] | ['Rivelles, V O'] | ['Comment on "A new symmetry for QED" and "Relativistically covariant symmetry in QED"'] | ['Particle Physics - Theory'] | ['quantum electrodynamics', 'symmetry, Becchi-Rouet-Stora', 'ghost'] | ['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9509028'] | ['We show that recently found symmetries in QED are just non-local versions of standard BRST symmetry.'] | ['1995-09-07'] |
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