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13,500
['eng']
['Ashtekar, Abhay', 'Lewandowski, J R', 'Marolf, D M', 'Mourao, J', 'Thiemann, T']
['Closed formula for Wilson loops for SU(N) quantum Yang-Mills theory in two dimensions']
['Particle Physics - Theory']
['Hamiltonian formalism', 'Wilson loop', 'axiomatic field theory', 'dimension, 2', 'field theory, Euclidean', 'gauge field theory, SU(N)', 'integrability', 'lattice field theory, continuum limit', 'lattice field theory', 'operator, algebra', 'path integral']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605128']
['A closed expression of the Euclidean Wilson-loop functionals is derived for pure Yang-Mills continuum theories with gauge groups SU(N) and U(1) and space-time topologies \\Rl^1\\times\\Rl^1 and \\Rl^1\\times S^1. (For the U(1) theory, we also consider the S^1\\times S^1 topology.) The treatment is rigorous, manifestl...
['1996-05-20']
13,501
['eng']
['Aspinwall, Paul S', 'Gross, M']
['The SO(32) heterotic string on a K3 surface']
['Particle Physics - Theory']
['string model, heterotic', 'gauge field theory, SO(32)', 'field theory, Kaehler', 'geometry, algebra', 'group theory, representation', 'particle, multiplet', 'multiplet, particle']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605131']
['The SO(32) heterotic string on a K3 surface is analyzed in terms of the dual theory of a type II string (or F-theory) on an elliptically fibred Calabi-Yau manifold. The results are in beautiful agreement with earlier work by Witten using very different methods. In particular, we find gauge groups of SO(32) x Sp(k) ap...
['1996-05-20']
13,502
['eng']
['Palacios, L']
['Boosting some type-d metrics']
['Particle Physics - Theory']
['relativity theory, general', 'gauge field theory, U(1)', 'field theory, dilaton', 'field theory, axion', 'field equations, solution', 'string model']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605117']
["We are presenting a general solution to the classical Einstein--Maxwell--dilaton--axion equations starting from a metric of type--D. Namely, this stringy solution is the result of a transformation on a general vacuum type--D solution to the Einstein's equations which was studied in detail some years ago."]
['1996-05-20']
13,503
['eng']
['Marchetti, P A', 'Su, Z B', 'Yu, L']
['Dimensional reduction of U(1) x SU(2) Chern-Simons bosonization']
['Particle Physics - Theory']
['gauge field theory, SU(2) x U(1)', 'Chern-Simons term', 'dimension, 2', 'bosonization', 'dimensional reduction', 'superconducting, model', 'model, superconducting', 'mean field approximation', 'correlation function', 'partition function', 'braid group']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605115']
['We perform a dimensional reduction of the U(1)\\times SU(2) Chern--Simons bosonization and apply it to the t-J model, relevant for high T_c superconductors. This procedure yields a decomposition of the electron field into a product of two ``semionic" fields, i.e. fields obeying abelian braid statistics with statistic...
['1996-05-20']
13,504
['eng']
['Cornwall, J M']
['The baryon Wilson loop area law in QCD']
['Particle Physics - Theory']
['gauge field theory, SU(N)', 'Wilson loop', 'perturbation theory', 'lattice field theory']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605116']
["There is still confusion about the correct form of the area law for the baryonic Wilson loop (BWL) of QCD. Strong-coupling (i.e., finite lattice spacing in lattice gauge theory) approximations suggest the form \\exp[-KA_Y] where K is the q\\bar{q} string tension and A_Y is the global minimum area, generically a three...
['1996-05-20']
13,505
['eng']
['Giveon, Amit', 'Porrati, Massimo']
['Aspects of space-time dualities']
['Particle Physics - Theory']
['gauge field theory, SU(2)', 'gauge field theory, Yang-Mills', 'supersymmetry', 'space-time', 'duality, transformation', 'string model', 'any-dimensional', 'spontaneous compactification']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605118']
['Duality groups of Abelian gauge theories on four manifolds and their reduction to two dimensions are considered. The duality groups include elements that relate different space-times in addition to relating different gauge-coupling matrices. We interpret (some of) such dualities as the geometrical symmetries of compa...
['1996-05-20']
13,506
['eng']
['Chou, C L']
['Models of dynamical supersymmetry breaking from a SU(2k+3) gauge model']
['Particle Physics - Theory']
['gauge field theory, SU(N)', 'supersymmetry, dynamically broken', 'effective potential']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605119']
['We investigate three classes of supersymmetric models which can be obtained by breaking the chiral SU(2k+3) gauge theories with one antisymmetric tensor and 2k-1 antifundamentals, down to SU(2k+3-N)\\timesSU(N), N\\leq3. For N=3, the chiral SU(2k)\\time sSU(3) theories break supersymmetry by the quantum deformations ...
['1996-05-20']
13,507
['eng']
['Ubriaco, M R']
['High and low temperature behavior of a quantum group fermion gas']
['Particle Physics - Theory']
['quantum group, SU(2)', 'fermion, gas', 'entropy', 'temperature, high', 'temperature, low', 'statistics, fractional', 'numerical calculations']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9607173']
['We consider the simplest $SU_{q}(2)$ invariant fermionic hamiltonian and calculate the low and high temperature behavior for the two distinct cases $q>1$ and $q<1$. For low temperatures we find that entropy values for the Fermi case are an upper bound for those corresponding to $q\\neq 1$. At high temperatures we fin...
['1996-07-23']
13,508
['eng']
['Guhr, T', 'Wettig, T']
['An Itzykson-Zuber-like integral and diffusion for complex ordinary and supermatrices']
['Particle Physics - Theory']
['group theory, U(N)', 'group theory, representation', 'operator, determinant', 'boundary condition']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605110']
['We compute an analogue of the Itzykson-Zuber integral for the case of arbitrary complex matrices. The calculation is done for both ordinary and supermatrices by transferring the Itzykson-Zuber diffusion equation method to the space of arbitrary complex matrices. The integral is of interest for applications in Quantum...
['1996-05-16']
13,509
['eng']
['Alexeyev, S O', 'Pomazanov, M V']
['Black hole solutions with dilatonic hair in higher curvature gravity']
['Particle Physics - Theory']
['black hole, hair', 'dilaton', 'string model', 'Gauss-Bonnet term', 'symmetry, rotational', 'thermodynamics', 'asymptotic behavior', 'numerical calculations']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605106']
['A new numerical integration method for examining a black hole structure was realized. Black hole solutions with dilatonic hair of 4D low energy effective SuperString Theory action with Gauss-Bonnet quadratic curvature contribution were studied, using this method, inside and outside the event horizon. Thermodynamical ...
['1996-05-16']
13,510
['eng']
['Requardt, M']
['Discrete mathematics and physics on the Planck-scale exemplified by means of a class of "cellular network models" and their dynamics']
['Particle Physics - Theory']
['space-time', 'approximation, lattice', 'operator, algebra']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605103']
["Starting from the hypothesis that both physics, in particular space-time and the physical vacuum, and the corresponding mathematics are discrete on the Planck scale we develop a certain framework in form of a class of '{\\it cellular networks}' consisting of cells (nodes) interacting with each other via bonds accordi...
['1996-05-16']
13,511
['eng']
['Kausch, H G', 'Takács, G', 'Watts, G M T']
['On the relation between $\\Phi$(1,2) and $\\Phi$(1,5) perturbed minimal models']
['Particle Physics - Theory']
['field theory, conformal', 'dimension, 2', 'perturbation theory', 'S-matrix', 'Bethe ansatz', 'numerical calculations']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605104']
['We consider the Phi(1,5) perturbations of Virasoro minimal models; they are described by the same ZMS Lagrangian theory as related Phi(1,2) perturbations. This relation falls into one of three classes, according to the relative magnitudes of the effective central charges of the two theories. We show how the different...
['1996-05-16']
13,512
['eng']
['Gervais, Jean-Loup']
['Solving the strongly coupled 2D gravity; 3, string susceptibility and topological n-point functions']
['Particle Physics - Theory']
['gravitation', 'dimension, 2', 'approximation, strong coupling', 'strong coupling, approximation', 'string model', 'n-point function, topological']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605105']
['We spell out the derivation of novel features, put forward earlier in a letter, of two dimensional gravity in the strong coupling regime, at C_L=7, 13, 19. Within the operator approach previously developed, they neatly follow from the appearence of a new cosmological term/marginal operator, different from the standar...
['1996-05-16']
13,513
['eng']
['Delbourgo, Robert', 'Kalloniatis, A C', 'Thompson, G']
['Dimensional renormalization']
['Particle Physics - Theory']
['field theory, scalar', 'fermion', 'coupling, Yukawa', 'Yukawa, coupling', 'perturbation theory, higher-order', 'renormalization, dimensional']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605107']
['Renormalization factors are most easily extracted by going to the massless limit of the quantum field theory and retaining only a single momentum scale. We derive factors and renormalized Green functions to all orders in perturbation theory for rainbow graphs and vertex (or scattering diagrams) at zero momentum trans...
['1996-05-16']
13,514
['eng']
['Csáki, C', 'Randall, L', 'Skiba, W']
['More dynamical supersymmetry breaking']
['Particle Physics - Theory']
['gauge field theory, SU(N) x SU(3) x U(1)', 'supersymmetry, dynamically broken', 'potential, flat direction']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605108']
['In this paper we introduce a new class of theories which dynamically break supersymmetry based on the gauge group SU(n)xSU(3)xU(1) for even n. These theories are interesting in that no dynamical superpotential is generated in the absence of perturbations. For the example SU(4)xSU(3)xU(1) we explicitly demonstrate tha...
['1996-05-16']
13,515
['eng']
['Kleihaus, B', 'Kunz, J', 'Sood, A K']
['Sequences of Einstein-Yang-Mills-dilaton black holes']
['Particle Physics - Theory']
['relativity theory, general', 'gauge field theory, Yang-Mills', 'field theory, dilaton', 'field equations, solution', 'boundary condition', 'black hole', 'numerical calculations']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605109']
['Einstein-Yang-Mills-dilaton theory possesses sequences of neutral static spherically symmetric black hole solutions. The solutions depend on the dilaton coupling constant \\gamma and on the horizon. The SU(2) solutions are labelled by the number of nodes n of the single gauge field function, whereas the SO(3) solutio...
['1996-05-16']
13,516
['eng']
["Figueroa-O'Farrill, J M", 'Stanciu, S']
['Nonreductive WZW models and their CFTs; 2, N=1 and N=2 cosets']
['Particle Physics - Theory']
['field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'supersymmetry', 'coset space', 'partition function', 'tensor, energy-momentum', 'operator product expansion']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605111']
['In hep-th/9506151 we started a programme devoted to the systematic study of the conformal field theories derived from WZW models based on nonreductive Lie groups. In this, the second part, we continue this programme with a look at the N=1 and N=2 superconformal field theories which arise from both gauged and ungauged...
['1996-05-16']
13,517
['eng']
['Halyo, E', 'Rajaraman, A', 'Susskind, Leonard']
['Braneless Black Holes']
['Particle Physics - Theory']
['black hole, entropy', 'membrane hole, p-brane', 'string tension', 'dimension, 5', 'black hole, Schwarzschild', 'string, length']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605112']
['It is known that the naive version of D-brane theory is inadequate to explain the black hole entropy in the limit in which the Schwarzschild radius becomes larger than all compactification radii. We present evidence that a more consistent description can be given in terms of strings with rescaled tensions. We show th...
['1996-05-16']
13,518
['eng']
['Poppitz, E R', 'Shadmi, Y', 'Trivedi, S P']
['Duality and exact results in product group theories']
['Particle Physics - Theory']
['gauge field theory, SU(2) x SU(2)', 'gauge field theory, SU(N) x SU(M)', 'supersymmetry, symmetry breaking', 'duality', 'renormalization group, transformation', 'critical phenomena']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605113']
['We study the non-perturbative behavior of some N=1 supersymmetric product-group gauge theories with the help of duality. As a test case we investigate an SU(2)xSU(2) theory in detail. Various dual theories are constructed using known simple-group duality for one group or both groups in succession. Several stringent t...
['1996-05-16']
13,519
['eng']
['Kamata, M', 'Koikawa, T']
['2+1 dimensional charged black hole with (anti-)self dual Maxwell fields']
['Particle Physics - Theory']
['relativity theory, general', 'gauge field theory, U(1)', 'dimension, 3', 'duality', 'field equations, solution', 'black hole', 'energy', 'angular momentum', 'mass']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605114']
['We discuss the exact electrically charged BTZ black hole solutions to the Einstein-Maxwell equations with a negative cosmological constant in 2+1 spacetime dimensions assuming a (anti-)self dual condition between the electromagnetic fields. In a coordinate condition there appears a logarithmic divergence in the angul...
['1996-05-16']
13,520
['eng']
['Chubykalo, A E', 'Evans, M W', 'Smirnov-Rueda, R']
['The phase free, longitudinal, magnetic component of vacuum electromagnetism']
['Particle Physics - Theory']
['charge, velocity', 'magnetic field, longitudinal', 'vacuum state', 'Maxwell equation']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605093']
['A charge q moving in a reference laboratory system with constant velocity {\\bf V} in the X-axis produces in the Z-axis a longitudinal, phase free, vacuum magnetic field which is identified as the radiated {\\bf B}^{(3)} field of Evans, Vigier and others.']
['1996-05-15']
13,521
['eng']
['Abdesselam, A', 'Rivasseau, V']
['An explicit large versus small field multiscale cluster expansion']
['Particle Physics - Theory']
['expansion, cluster', 'model, polymer', 'phase space', 'renormalization group', 'n-point function', 'phi**n model, 4', 'functional analysis']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605094']
['We introduce a new type of cluster expansion which generalizes a previous formula of Brydges and Kennedy. The method is especially suited for performing a phase-space multiscale expansion in a just renormalizable theory, and allows the writing of explicit non-perturbative formulas for the Schwinger functions. The pro...
['1996-05-15']
13,522
['eng']
['Yung, A V']
['Instanton-induced effective lagrangian in the Seiberg-Witten model']
['Particle Physics - Theory']
['gauge field theory, SU(2)', 'supersymmetry', 'field theory, instanton', 'effective Lagrangian', 'vertex function']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605096']
['The N=2 supersymmetric gauge theory with gauge group SU(2) is considered. The instanton field is calculated explicitly using the superfield formalism. The instanton-induced effects are encoded in the effective vertex in the Lagrangian. This vertex produces the large distance expansion of the low energy effective Lagr...
['1996-05-15']
13,523
['eng']
['Blau, Matthias', 'Jermyn, I', 'Thompson, G']
['Solving topological field theories on mapping tori']
['Particle Physics - Theory']
['field theory, tensor', 'field theory, BF', 'field theory, topological', 'dimension, 3', 'partition function', 'dependence, gauge']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605095']
['Using gauge theory and functional integral methods, we derive concrete expressions for the partition functions of BF theory and the U(1|1) model of Rozansky and Saleur on \\Sigma x S^{1}, both directly and using equivalent two-dimensional theories. We also derive the partition function of a certain non-abelian genera...
['1996-05-15']
13,524
['eng']
['Mansfield, P', 'Neves, R']
['Boundary conformal field theories on random surfaces and the non-critical open string']
['Particle Physics - Theory']
['string model', 'field theory, conformal', 'dimension, 2', 'random surface', 'boundary condition', 'partition function', 'anomaly, Weyl', 'critical phenomena', 'bibliography']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605097']
['We analyse boundary conformal field theories on random surfaces using the conformal gauge approach of David, Distler and Kawai. The crucial point is the choice of boundary conditions on the Liouville field. We discuss the Weyl anomaly cancellation for Polyakov`s non-critical open bosonic string with Neumann, Dirichle...
['1996-05-15']
13,525
['eng']
['Caneschi, L', 'Lysiansky, M']
['Chiral quantization of the WZW SU(n) model']
['Particle Physics - Theory']
['field theory, conformal', 'dimension, 2', 'Wess-Zumino-Witten model', 'symmetry, SU(N)', 'quantization, chiral', 'Hamiltonian formalism', 'operator, vertex', 'operator, algebra', 'Knizhnik-Zamolodchikov equation']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605099']
['We quantize the SU(n) Wess-Zumino-Witten model in terms of left and right chiral variables choosing an appropriate gauge and we compare our results with the results that have been previously obtained in the algebraic treatment of the problem. The algebra of the chiral vertex operators in the fundamental representatio...
['1996-05-15']
13,526
['eng']
['Kazakov, V A']
['R$^{2}$ 2D quantum gravity and dually weighted graphs']
['Particle Physics - Theory']
['talk, Osaka 1995/12/14', 'gravitation, action', 'quantum gravity', 'dimension, 2', 'matrix model, solution', 'partition function']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605098']
['A recently introduced model of dually weighted planar graphs is solved in terms of an elliptic parametrization for some particular collection of planar graphs describing the 2D R^2 quantum gravity. Along with the cosmological constant \\lambda one has a coupling \\beta in the model corresponding to the R^2-coupling c...
['1996-05-15']
13,527
['eng']
['Keister, B D', 'Polyzou, W N']
['Causality in dense matter']
['Particle Physics - Theory']
['matter, density', 'quantum mechanics', 'causality', 'space-time', 'potential', 'many-body problem']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605100']
['The possibility of non-causal signal propagation is examined for various theories of dense matter. This investigation requires a discussion of definitions of causality, together with interpretations of spacetime position. Specific examples are used to illustrate the satisfaction or violation of causality in realistic...
['1996-05-15']
13,528
['eng']
['Bilal, Adel', 'Ferrari, F']
['Curves of marginal stability and weak and strong-coupling BPS spectra in N=2 supersymmetric QCD']
['Particle Physics - Theory']
['gauge field theory, SU(2)', 'supersymmetry', 'asymptotic freedom', 'field theory, monopole', 'moduli space', 'stability', 'approximation, weak coupling', 'weak coupling, approximation', 'approximation, strong coupling', 'strong coupling, approximation']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605101']
['We explicitly determine the global structure of the SL(2,Z) bundle over the Coulomb branch of the moduli space of asymptotically free N=2 supersymmetric Yang-Mills theories with gauge group SU(2) when massless hypermultiplets are present. For each relevant number of flavours, we show that there is a curve of marginal...
['1996-05-15']
13,529
['eng']
['De Boer, J', 'Fehér, L']
['An explicit construction of Wakimoto realizations of current algebras']
['Particle Physics - Theory']
['current algebra, representation', 'operator product expansion', 'Hamiltonian formalism', 'group theory, finite', 'quantization']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605102']
['It is known from a work of Feigin and Frenkel that a Wakimoto type, generalized free field realization of the current algebra \\widehat{\\cal G}_k can be associated with each parabolic subalgebra {\\cal P}=({\\cal G}_0+{\\cal G}_+) of the Lie algebra {\\cal G}, where in the standard case {\\cal G}_0 is the Cartan and...
['1996-05-15']
13,530
['eng']
['Duff, Michael J', 'Rahmfeld, J']
['Bound states of black holes and other p-branes']
['Particle Physics - Theory']
['string model, heterotic', 'black hole', 'bound state', 'membrane model, p-brane', 'field theory, soliton', 'temperature', 'entropy', 'field theory, M-theory', 'bibliography']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605085']
['In the process of identifying heterotic and Type II BPS string states with extremal dilaton black holes, it has been suggested that solutions with scalar/Maxwell parameters a=\\sqrt{3}, 1, 1/\\sqrt{3} and 0 correspond to 1-, 2-, 3- and 4-particle bound states at threshold. (For example, the Reissner-Nordstrom black h...
['1996-05-14']
13,531
['eng']
['Antonov, D V', 'Ebert, D', 'Simonov, Yu A']
['Curvature expansion for the background-induced gluodynamics string']
['Particle Physics - Theory']
['Wilson loop', 'cumulant expansion', 'string model', 'effective action', 'gauge field theory']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605086']
['Using cumulant expansion for an averaged Wilson loop we derive an action of the gluodynamics string in the form of a series in powers of the correlation length of the vacuum. In the lowest orders it contains the Nambu-Goto term and the rigidity term with the coupling constants computed from the bilocal correlator of ...
['1996-05-14']
13,532
['eng']
['Bergshoeff, E A', 'Sezgin, E', 'Sokatchev, Emery S']
['Couplings of self-dual tensor multiplet in six dimensions']
['Particle Physics - Theory']
['supergravity', 'gauge field theory, Yang-Mills', 'field theory, tensor', 'dimension, 6', 'duality']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605087']
['The (1,0) supersymmetry in six dimensions admits a tensor multiplet which contains a second-rank antisymmetric tensor field with a self-dual field strength and a dilaton. We describe the fully supersymmetric coupling of this multiplet to Yang-Mills multiplet, in the absence of supergravity. The self-duality equation ...
['1996-05-14']
13,533
['eng']
['Kostelecky, V A', 'Potting, R']
['Expectation values, Lorentz invariance, and CPT in the open bosonic string']
['Particle Physics - Theory']
['string model, open', 'boson, string', 'invariance, Lorentz', 'invariance, CPT', 'field equations, solution', 'symmetry, spontaneously broken', 'numerical calculations']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605088']
['The issue of spontaneous breaking of Lorentz and CPT invariance is studied in the open bosonic string using a truncation scheme to saturate the string-field action at successively higher levels. We find strong evidence for the existence of extrema of the action with nonzero expectation values for certain fields. The ...
['1996-05-14']
13,534
['eng']
['Volkov, M S', 'Straumann, N', 'Lavrelashvili, G', 'Heusler, M', 'Brodbeck, O']
['Cosmological analogues of the Bartnik-McKinnon solutions']
['Particle Physics - Theory']
['relativity theory, general', 'gauge field theory, Yang-Mills', 'astrophysics, fundamental constant', 'field equations, solution', 'symmetry, rotational', 'asymptotic behavior', 'numerical calculations']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605089']
["We present a numerical classification of the spherically symmetric, static solutions to the Einstein--Yang--Mills equations with cosmological constant \\Lambda. We find three qualitatively different classes of configurations, where the solutions in each class are characterized by the value of \\Lambda and the number ...
['1996-05-14']
13,535
['eng']
['Bonelli, G', 'Matone, M']
['Nonperturbative relations in N=2 SUSY Yang-Mills and WDVV equation']
['Particle Physics - Theory']
['gauge field theory, SU(3)', 'renormalization group, beta function', 'nonperturbative', 'supersymmetry']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605090']
['We obtain the nonperturbative relation v=\\pm {2\\over 3\\sqrt 3}u^{3/2}+c\\Lambda^3{\\cal F}_{12}+d\\Lambda^3. This relation gives \\langle {\\rm tr}\\, \\phi^3\\rangle in terms of the prepotential {\\cal F} and the vevs \\langle \\phi_i\\rangle in N=2 SYM with gauge group SU(3). We also obtain the nonlinear differe...
['1996-05-14']
13,536
['eng']
['Tseytlin, Arkady A']
['Extremal black hole entropy from conformal string $\\sigma$ model']
['Particle Physics - Theory']
['string model', 'field theory, conformal', 'dimension, 2', 'black hole', 'dimension, 5', 'dimension, 6', 'field theory, dyon', 'field theory, deformation', 'perturbation theory', 'entropy']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605091']
["We present string-theory derivation of the semiclassical entropy of extremal dyonic black holes in the approach based on conformal sigma model (NS-NS embedding of the classical solution). We demonstrate (resolving some puzzles existed in previous related discussions) that the degeneracy responsible for the entropy is...
['1996-05-14']
13,537
['eng']
['Khviengia, N L', 'Khviengia, Z', 'Lü, H', 'Pope, C N']
['Intersecting M-branes and bound states']
['Particle Physics - Theory']
['membrane model, p-brane', 'membrane model, interaction', 'interaction, membrane model', 'bound state', 'supersymmetry', 'field theory, soliton', 'field theory, M-theory']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605077']
['In this paper, we construct multi-scalar, multi-center p-brane solutions in toriodally compactified M-theory. We use these solutions to show that all supersymmetric p-branes can be viewed as bound states of certain basic building blocks, namely p-branes that preserve 1/2 of the supersymmetry. We also explore the M-th...
['1996-05-13']
13,538
['eng']
['Ghosh, S']
['On the vortex-point charge composite']
['Particle Physics - Theory']
['model, composite', 'vortex, potential', 'dimension, 3', 'orbit, classical', 'bound state', 'quantum mechanics', 'Higgs model, abelian']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605078']
['The possibility of composite systems arising out of a point charge interacting with a Nielsen-Olesen vortex in 2+1-dimensions is investigated. It is shown that classical bounded orbits are possible for certain ranges of parameters. Long lived metastable states are shown to exist, in a semi-classical approach, from th...
['1996-05-13']
13,539
['eng']
['Rodrigues, J P']
['Systematic 1/N corrections for bosonic and fermionic vector models without auxiliary fields']
['Particle Physics - Theory']
['phi**n model, 4', 'symmetry, U(N)', 'field theory, collective', 'effective action', 'n-point function', 'perturbation theory, higher-order', 'Dyson-Schwinger equation, solution', 'Bethe-Salpeter equation, solution', 'expansion 1/N', 'model, vector', 'Gross-Neveu model', 'Jona-Lasinio-Nambu model']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605079']
['In this paper, colorless bilocal fields are employed to study the large N limit of both fermionic and bosonic vector models. The Jacobian associated with the change of variables from the original fields to the bilocals is computed exactly, thereby providing an exact effective action. This effective action is shown to...
['1996-05-13']
13,540
['eng']
['Khoudeir, A']
['Non-abelian antisymmetric-vector coupling from self-interaction']
['Particle Physics - Theory']
['gauge field theory, vector', 'gauge field theory, tensor', 'field theory, action']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605080']
['A non-abelian coupling between antisymmetric fields and Yang-Mills fields proposed by Freedman and Townsend several years ago is derived using the self-interaction mechanism.']
['1996-05-13']
13,541
['eng']
['Lü, H', 'Pope, C N', 'Stelle, Kellogg S']
['Vertical versus diagonal dimensional reduction for p-branes']
['Particle Physics - Theory']
['membrane model, p-brane', 'any-dimensional', 'dimensional reduction', 'duality']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605082']
["In addition to the double-dimensional reduction procedure that employs world-volume Killing symmetries of p-brane supergravity solutions and acts diagonally on a plot of p versus spacetime dimension D, there exists a second procedure of ``vertical'' reduction. This reduces the transverse-space dimension via an integr...
['1996-05-13']
13,542
['eng']
['Ohta, N']
['More on the exact solutions of generalized Calogero-Sutherland models']
['Particle Physics - Theory']
['statistical mechanics', 'field theory, collective', 'effective Hamiltonian', 'algebra, W(N)', 'integrability']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605083']
['A collective field method was used to obtain explicit solutions of the generalized Calogero-Sutherland models that are characterized by the roots of all the classical groups. However the solutions corresponding to spinor representations for B_N and D_N cases were not obtained previously. In this paper, the same metho...
['1996-05-13']
13,543
['eng']
['Hamamoto, S']
['Massless limits of massive tensor fields']
['Particle Physics - Theory']
['field theory, tensor', 'field theory, massive', 'massive, field theory', 'approximation, massless', 'massless, approximation', 'dependence, gauge', 'path integral', 'transformation, Becchi-Rouet-Stora']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605084']
["In order to construct a massive tensor theory with a smooth massless limit, we apply two kinds of gauge-fixing procedures, Nakanishi's one and the BRS one, to two models of massive tensor field. The first is of the Fierz-Pauli (FP) type, which describes a pure massive tensor field; the other is of the additional-scal...
['1996-05-13']
13,544
['eng']
['Mohammedi, N']
['A novel symmetry in $\\sigma$ models']
['Particle Physics - Theory']
['sigma model, nonlinear', 'dimension, 2', 'Wess-Zumino-Witten model', 'gauge field theory, Chern-Simons term']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605070']
['A class of non-linear sigma models possessing a new symmetry is identified. The same symmetry is also present in Chern-Simons theories. This hints at a possible topological origin for this class of sigma models. The non-linear sigma models obtained by non-Abelian duality are a particular case in this class.']
['1996-05-10']
13,545
['eng']
['Bosselmann, H M', 'Papadopoulos, N A']
['TG-equivariance of connections and gauge transformations']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'fibre bundle', 'transformation, gauge']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605071']
['We consider the notion of a connection on a principal bundle P(M,G) from the point of view of the action of the tangential group TG. This leads to a new definition of a connection and allows to interpret gauge transformations as effect of the TG action.']
['1996-05-10']
13,546
['eng']
['Bilge, A H', 'Dereli, T']
['The geometry of self-dual 2-forms']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'differential forms', 'duality', 'any-dimensional']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605060']
['We show that self-dual 2-forms in 2n dimensional spaces determine a n^2-n+1 dimensional manifold {\\cal S}_{2n} and the dimension of the maximal linear subspaces of {\\cal S}_{2n} is equal to the (Radon-Hurwitz) number of linearly independent vector fields on the sphere S^{2n-1}. We provide a direct proof that for n ...
['1996-05-10']
13,547
['eng']
['Delfino, G', 'Simonetti, P']
['Correlation functions in the two-dimensional Ising model in a magnetic field at T = T$_{c}$']
['Particle Physics - Theory']
['Ising model', 'dimension, 2', 'correlation function', 'magnetic field', 'form factor', 'bootstrap', 'field theory, conformal', 'numerical calculations']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605065']
['The one and two-particle form factors of the energy operator in the two-dimensional Ising model in a magnetic field at T=T_c are exactly computed within the form factor bootstrap approach. Together with the matrix elements of the magnetisation operator already computed in ref.\\,\\cite{immf}, they are used to write d...
['1996-05-10']
13,548
['eng']
['Kim, J D', 'Koh, I G']
['Square root singularity in boundary reflection matrix']
['Particle Physics - Theory']
['field theory, Toda', 'field theory, affine', 'dimension, 2', 'scattering amplitude, analytic properties', 'boundary condition']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605061']
['Two-particle scattering amplitudes for integrable relativistic quantum field theory in 1+1 dimensions can normally have at most singularities of poles and zeros along the imaginary axis in the complex rapidity plane. It has been supposed that single particle amplitudes of the exact boundary reflection matrix exhibit ...
['1996-05-10']
13,549
['eng']
['Meljanac, S', 'Stojic, M', 'Svrtan, D']
['Partition function for general multi-level systems']
['Particle Physics - Theory']
['statistics, parastatistics', 'partition function', 'quantization, 2', 'postulated particle, anyon', 'group theory, representation']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605064']
['We describe a unified approach to calculating the partition functions of a general multi-level system with a free Hamiltonian. Particularly, we present new results for parastatistical systems of any order in the second quantized approach. Anyonic- like systems are briefly discussed.']
['1996-05-10']
13,550
['eng']
['Maassarani, Z', 'Serban, D']
['Non-unitary conformal field theory and logarithmic operators for disordered systems']
['Particle Physics - Theory']
['field theory, conformal', 'dimension, 2', 'lattice field theory', 'supersymmetry', 'Ising model', 'unitarity', 'n-point function', 'Knizhnik-Zamolodchikov equation, solution']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605062']
['We consider the supersymmetric approach to gaussian disordered systems like the random bond Ising model and Dirac model with random mass and random potential. These models appeared in particular in the study of the integer quantum Hall transition. The supersymmetric approach reveals an osp(2/2)_1 affine symmetry at t...
['1996-05-10']
13,551
['eng']
['Tuning, N', 'Verlinde, Herman L']
['Backreaction on moving mirrors and black hole radiation']
['Particle Physics - Theory']
['space-time', 'boundary condition', 'acceleration', 'radiation', 'temperature', 'approximation, quasiclassical', 'gravitation, dilaton']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605063']
['We compute the effect of quantum mechanical backreaction on the spectrum of radiation in a dynamical moving mirror model, mimicking the effect of a gravitational collapse geometry. Our method is based on the use of a combined WKB and saddle-point approximation to implement energy conservation in the calculation of th...
['1996-05-10']
13,552
['eng']
['de Azcárraga, J A', 'Perelomov, A M', 'Pérez-Bueno, J C']
['The Schouten-Nijenhuis bracket, cohomology and generalized Poisson structures']
['Particle Physics - Theory']
['quantization', 'Hamiltonian formalism', 'operator, algebra', 'cohomology']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605067']
["Newly introduced generalized Poisson structures based on suitable skew--sym\\-metric contravariant tensors of even order are discussed in terms of the Schouten-Nijenhuis bracket. The associated `Jacobi identities' are expressed as conditions on these tensors, the cohomological contents of which is given. In particula...
['1996-05-10']
13,553
['eng']
['Edelstein, J D', 'Núñez, C']
['Supersymmetric electroweak cosmic strings']
['Particle Physics - Theory']
['gauge field theory, SU(2) x U(1) x U(1)', 'supersymmetry', 'dimension, 3', 'Higgs particle, multiplet', 'multiplet, Higgs particle', 'doublet, 2', 'astrophysics, string', 'symmetry breaking', 'algebra, charge', 'Bogomolnyi equation']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605066']
["We study the connection between N=2 supersymmetry and a topological bound in a two-Higgs-doublet system with an SU(2)\\times U(1)_Y\\times U(1)_{Y^{\\prime}} gauge group. We derive the Bogomol'nyi equations from supersymmetry considerations showing that they hold provided certain conditions on the coupling constants,...
['1996-05-10']
13,554
['eng']
['Aroca, J M', 'Fort, H', 'Gambini, R']
['The path integral for the loop representation of lattice gauge theories']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'path integral', 'loop space', 'lattice field theory', 'Hamiltonian formalism']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605068']
['We show how the Hamiltonian lattice loop representation can be cast straightforwardly in the path integral formalism. The procedure is general for any gauge theory. Here we present in detail the simplest case: pure compact QED. We also analyze the non-Abelian Yang-Mills theory. The lattice loop path integral approach...
['1996-05-10']
13,555
['eng']
['Dorey, N', 'Fraser, C', 'Hollowood, Timothy J', 'Kneipp, M A C']
['S-duality in N=4 supersymmetric gauge theories']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'gauge field theory, Theta parameter', 'duality, transformation', 'supersymmetry']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605069']
['The Goddard, Nuyts and Olive conjecture for electric-magnetic duality in Yang-Mills theory with an arbitrary gauge group G is extended by including a non-vanishing vacuum angle \\theta. This extended S-duality conjecture includes the case when the unbroken gauge group is non-abelian and a definite prediction for the ...
['1996-05-10']
13,556
['eng']
['Papadopoulos, N A', 'Plass, J']
['Natural extensions of the Connes-Lott model and comparison with the Marseille-Mainz model']
['Particle Physics - Theory']
['Salam-Weinberg model', 'unified field theory', 'differential geometry, noncommutative', 'operator, Dirac', 'linear spaces, Hilbert space']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605072']
['An extension of the Connes--Lott model is proposed. It is also within the framework of the A.Connes construction based on a generalized Dirac--Yukawa operator and the K--cycle (H,D), with H a fermionic Hilbert space. The basic algebra A which may be considered as representing the non--commutative extension, plays a l...
['1996-05-10']
13,557
['eng']
['Stephany, J']
['Topological field theories and duality']
['Particle Physics - Theory']
['field theory, topological', 'duality, transformation', 'partition function']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605074']
['Topologically non trivial effects appearing in the discussion of duality transformations in higher genus manifolds are discussed in a simple example, and their relation with the properties of Topological Field Theories is established.']
['1996-05-10']
13,558
['eng']
['Das, A', 'Roy, S']
['On M-theory and the symmetries of type II string effective actions']
['Particle Physics - Theory']
['string model', 'effective action', 'dimension, 10', 'dimension, 9', 'field theory, M-theory', 'duality, transformation']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605073']
["We study the ``ordinary'' Scherk-Schwarz dimensional reduction of the bosonic sector of the low energy effective action of a hypothetical M-theory on S^1 \\times S^1 \\cong T^2. We thus obtain the low energy effective actions of type IIA string theory in both ten and nine space-time dimensions. We point out how to ob...
['1996-05-10']
13,559
['eng']
['Grigore, D R']
['On a order reduction theorem in the lagrangian formalism']
['Particle Physics - Theory']
['field theory', 'Lagrangian formalism', 'fibre bundle']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605076']
['We provide a new proof of a important theorem in the Lagrangian formalism about necessary and sufficient conditions for a second-order variational system of equations to follow from a first-order Lagrangian.']
['1996-05-10']
13,560
['eng']
['Zwiebach, B']
['New moduli spaces from string background independence consistency conditions']
['Particle Physics - Theory']
['string model', 'background field', 'field theory, conformal', 'dimension, 2', 'moduli space', 'Hamiltonian formalism', 'Riemann surfaces', 'cohomology']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605075']
['In string field theory an infinitesimal background deformation is implemented as a canonical transformation whose hamiltonian function is defined by moduli spaces of punctured Riemann surfaces having one special puncture. We show that the consistency conditions associated to the commutator of two deformations are imp...
['1996-05-10']
13,561
['eng']
['Mukaigawa, S', 'Takata, H']
['One loop renormalization of the 4-D quantum dilaton gravity in spherical symmetric background']
['Particle Physics - Theory']
['quantum gravity', 'field theory, dilaton', 'background field', 'symmetry, rotational', 'perturbation theory, higher-order', 'renormalization']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605057']
['We study the one loop renormalization in the most general metric-dilaton theory with second derivative only. In constant background dilaton theory, there are two types of gravity background which enable the theory renormalizable at one-loop level. We show this concretely to discuss on the spherical symmetric backgrou...
['1996-05-09']
13,562
['eng']
['Murray, M K']
['A note on the (1, 1,..., 1) monopole metric']
['Particle Physics - Theory']
['field theory, monopole', 'symmetry, SU(2)', 'moduli space']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605054']
['Recently K. Lee, E.J. Weinberg and P. Yi in CU-TP-739, hep-th/9602167, calculated the asymptotic metric on the moduli space of (1, 1, ..., 1) BPS monopoles and conjectured that it was globally exact. I lend support to this conjecture by showing that the metric on the corresponding space of Nahm data is the same as th...
['1996-05-09']
13,563
['eng']
['Park, Q H', 'Shin, H J']
['Effective field theory for coherent optical pulse propagation']
['Particle Physics - Theory']
['radiation', 'matter', 'hidden symmetry, nonabelian', 'optics', 'effective action', 'integrability', 'stability']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605052']
['Hidden nonabelian symmetries in nonlinear interactions of radiation with matter are clarified. In terms of a nonabelian potential variable, we construct an effective field theory of self-induced transparency, a phenomenon of lossless coherent pulse propagation, in association with Hermitian symmetric spaces G/H. Vari...
['1996-05-09']
13,564
['eng']
['Becker, K', 'Becker, M']
['M-theory on eight-manifolds']
['Particle Physics - Theory']
['supergravity', 'dimension, 11', 'spontaneous compactification', 'field theory, tensor', 'supersymmetry, symmetry breaking', 'field theory, M-theory', 'dimension, 8', 'differential geometry']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605053']
['We show that in certain compactifications of {\\cal M}-theory on eight-manifolds to three-dimensional Minkowski space-time the four-form field strength can have a non-vanishing expectation value, while an N=2 supersymmetry is preserved. For these compactifications a warp factor for the metric has to be taken into acc...
['1996-05-09']
13,565
['eng']
['Llatas, P M']
['Electrically charged black-holes for the heterotic string compactified on a (10-D)-torus']
['Particle Physics - Theory']
['string model, heterotic', 'spontaneous compactification, torus', 'any-dimensional', 'black hole', 'charge, electric']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605058']
['We work out the most general stationary electrically charged black-hole solutions of the heterotic string compactified on a (10-D)-torus, where D>3. This is done by using the solution generating transformations of Sen acting on the Myers and Perry metric. The conserved charges labeling these black-hole solutions are ...
['1996-05-09']
13,566
['eng']
['Bergshoeff, E A', 'Kallosh, R', 'Ortín, Tomas']
['Stationary axion/dilaton solutions and supersymmetry']
['Particle Physics - Theory']
['supergravity', 'field equations, solution', 'field theory, dilaton', 'field theory, axion', 'duality', 'bibliography']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605059']
["We present a new set of supersymmetric stationary solutions of pure N=4,d=4 supergravity that generalize (and include) the Israel-Wilson- Perj\\'es solutions of Einstein-Maxwell theory. All solutions have 1/4 of the supersymmetries unbroken and some have 1/2. The full solution is determined by two arbitrary complex h...
['1996-05-09']
13,567
['eng']
['Manton, N S', 'Merabet, H']
['$\\phi^{4}$ kinks']
['Particle Physics - Theory']
['phi**n model, 4', 'dimension, 2', 'field theory, kink', 'perturbation theory', 'radiation', 'scattering', 'energy', 'numerical calculations']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605038']
['The symmetric dynamics of two kinks and one antikink in classical (1+1)-dimensional \\phi^4 theory is investigated. Gradient flow is used to construct a collective coordinate model of the system. The relationship between the discrete vibrational mode of a single kink, and the process of kink-antikink pair production ...
['1996-05-08']
13,568
['eng']
['Antonov, D V']
['A new approach to perturbative theory in the nonperturbative QCD vacuum']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'quantization, stochastic', 'perturbation theory', 'nonperturbative', 'propagator', 'regularization', 'background field']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605044']
['Using stochastic quantization method we derive gauge-invariant equations, connecting multilocal vacuum correlators of nonperturbative field configurations immersed into the quantum background. Three alternative methods of stochastic regularization of these equations are suggested, and the corresponding regularized pr...
['1996-05-08']
13,569
['eng']
['Antonov, D V']
['New equations for vacuum correlators in gauge theories']
['Particle Physics - Theory']
['gauge field theory, U(1)', 'gauge field theory, Yang-Mills', 'Higgs model', 'finite temperature', 'partition function', 'quantization, stochastic', 'correlation function']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605045']
['Stochastic quantization is applied to derivation of equations connecting multilocal gauge-invariant correlators in different field theories. They include Abelian Higgs Model, QCD with spinless quarks at T=0 and T>0 and QED, where spin effects are taken into account exactly.']
['1996-05-08']
13,570
['eng']
['Sagnotti, A', 'Stanev, Ya S']
['Open descendants in conformal field theory']
['Particle Physics - Theory']
['talk, Geneva 1995/11/27', 'talk, Rome 1996/03', 'field theory, conformal', 'dimension, 2', 'Riemann surfaces', 'algebra, fusion', 'bibliography']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605042']
["Open descendants extend Conformal Field Theory to unoriented surfaces with boundaries. The construction rests on two types of generalizations of the fusion algebra. The first is needed even in the relatively simple case of diagonal models. It leads to a new tensor that satisfies the fusion algebra, but whose entries ...
['1996-05-08']
13,571
['eng']
['Acharya, B S']
['M-theory compactification and two-brane/five-brane duality']
['Particle Physics - Theory']
['membrane model, p-brane', 'p-brane, 2', 'p-brane, 5', 'string model', 'field theory, M-theory', 'spontaneous compactification', 'duality, transformation']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605047']
['We discuss various dual {\\it pairs} of M-theory compactifications. Each pair consists of a compactification in which the two-brane plays the crucial role in relation to a string theory and a compactification in which the five-brane takes center stage. We show that in many examples such dual pairs are interchanged by...
['1996-05-08']
13,572
['eng']
['Bakas, Ioannis']
['Solitons of axion-dilaton gravity']
['Particle Physics - Theory']
['gravitation', 'field theory, axion', 'field theory, dilaton', 'field theory, soliton', 'perturbation theory', 'analytic properties', 'field theory, conformal']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605043']
['We use soliton techniques of the two-dimensional reduced beta-function equations to obtain non-trivial string backgrounds from flat space. These solutions are characterized by two integers (n, m) referring to the soliton numbers of the metric and axion-dilaton sectors respectively. We show that the Nappi-Witten unive...
['1996-05-08']
13,573
['eng']
['Ellis, Jonathan Richard', 'Mavromatos, Nikolaos E', 'Nanopoulos, Dimitri V']
['D-branes from Liouville strings']
['Particle Physics - Theory']
['string model, Liouville', 'path integral', 'quantization, 2', 'membrane model, p-brane', 'effective action', 'field theory, soliton', 'black hole', 'bibliography']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605046']
['We develop quantization aspects of our Liouville approach to non-critical strings, proposing a path-integral formulation of a second quantization of string theory, that incorporates naturally the couplings of string sources to background fields. Such couplings are characteristic of macroscopic string solutions and/or...
['1996-05-08']
13,574
['eng']
['Greiner, C', 'Müller, B']
['Classical fields near thermal equilibrium']
['Particle Physics - Theory']
['field theory, classical', 'finite temperature', 'path integral', 'field equations, solution', 'quantization', 'fluctuation', 'bibliography']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605048']
["We discuss the classical limit for the long-distance (``soft'') modes of a quantum field when the hard modes of the field are in thermal equilibrium. We address the question of the correct semiclassical dynamics when a momentum cut-off is introduced. Higher order contributions leads to a stochastic interpretation for...
['1996-05-08']
13,575
['eng']
['Berkooz, M', 'Leigh, Robert G']
['A D=4 N=1 orbifold of type I strings']
['Particle Physics - Theory']
['string model', 'supersymmetry', 'spontaneous compactification', 'field theory, orbifold', 'phase space', 'particle, multiplet', 'multiplet, particle', 'Higgs model']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605049']
['We consider the propagation of Type I open superstrings on orbifolds with four non-compact dimensions and N=1 supersymmetry. In this paper, we concentrate on a non-trivial Z_2xZ_2 example. We show that consistency conditions, arising from tadpole cancellation and algebraic sources, require the existence of three sets...
['1996-05-08']
13,576
['eng']
['Barbón, J L F', 'Vázquez-Mozo, Miguel A']
['Complex world-sheets from N=2 strings']
['Particle Physics - Theory']
['string model, heterotic', 'space-time, torus', 'partition function', 'field theory, conformal', 'dimension, 2', 'duality', 'analytic properties']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605050']
['We study some properties of target space strings constructed from (2,1) heterotic strings. We argue that world-sheet complexification is a general property of the bosonic sector of such target world-sheets. We give a target space interpretation of this fact and relate it to the non-gaussian nature of free String Fiel...
['1996-05-08']
13,577
['eng']
['Cvetic, M', 'Youm, D']
['Near-BPS-saturated rotating electrically charged black holes as string states']
['Particle Physics - Theory']
['string model, heterotic', 'spontaneous compactification, torus', 'effective action', 'dimension, < =9', 'dimension, >=4', 'field equations, soliton', 'black hole', 'charge']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605051']
['We construct generating solutions for general D-dimensional (4 \\le D \\le 9) rotating, electrically charged, black holes in the effective action of toroidally compactified heterotic (or Type IIA) string. The generating solution is parameterized by the ADM mass, two electric charges and [{D-1}\\over 2] angular moment...
['1996-05-08']
13,578
['eng']
['Green, M', 'Harvey, J A', 'Moore, G']
['I-brane inflow and anomalous couplings on d-branes']
['Particle Physics - Theory']
['membrane model, p-brane', 'gauge field theory, Yang-Mills', 'gauge field theory, tensor', 'gravitation', 'anomaly']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605033']
['We show that the anomalous couplings of D-brane gauge and gravitational fields to Ramond-Ramond tensor potentials can be deduced by a simple anomaly inflow argument applied to intersecting D-branes and use this to determine the eight-form gravitational coupling.']
['1996-05-07']
13,579
['eng']
['Antonov, D V']
['A new method of quantization of classical solutions']
['Particle Physics - Theory']
['phi**n model, 4', 'quantization, stochastic', 'correlation, fluctuation', 'propagator', 'perturbation theory']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605031']
['Using stochastic quantization method we derive equations for correlators of quantum fluctuations around the classical solution in the massless phi^4 theory. The obtained equations are then solved in the lowest orders of perturbation theory, and the first correction to the free propagator of a quantum fluctuation is c...
['1996-05-07']
13,580
['eng']
['Andrianopoli, Laura', 'Bertolini, M', 'Ceresole, Anna T', "D'Auria, R", 'Ferrara, Sergio', 'Fré, P', 'Magri, T']
['N=2 supergravity and N=2 super Yang-Mills theory on general scalar manifolds']
['Particle Physics - Theory']
['gauge field theory, Yang-Mills', 'supersymmetry, transformation', 'supergravity', 'differential geometry, symplectic', 'space-time, Kaehler', 'field theory, action', 'bibliography']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605032']
['The general form of N=2 supergravity coupled to an arbitrary number of vector multiplets and hypermultiplets, with a generic gauging of the scalar manifold isometries is given. This extends the results already available in the literature in that we use a coordinate independent and manifestly symplectic covariant form...
['1996-05-07']
13,581
['eng']
['Mac, A', 'Camacho, A', 'Mielke, E W', 'Matos, T']
['Effective Weinberg-Salam model from higher dimensions']
['Particle Physics - Theory']
['talk', 'gravitation', 'dimension, 8', 'fermion', 'dimensional reduction', 'effective action', 'Salam-Weinberg model']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605034']
['We consider an 8--dimensional gravitational theory, which possesses a principle fiber bundle structure, with Lorentz--scalar fields coupled to the metric. One of them plays the role of a Higgs field and the other one that of a dilaton field. The effective cosmological constant is interpreted as a Higgs potential. The...
['1996-05-07']
13,582
['eng']
['Adler, Stephen Louis', 'Schubert, C']
['Photon splitting in a strong magnetic field']
['Particle Physics - Theory']
['photon, mass difference', 'mass difference, photon', 'magnetic field, high', 'photon, scattering amplitude', 'scattering amplitude, photon', 'path integral']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605035']
['We recalculate the amplitude for photon splitting in a strong magnetic field below the pair production threshold, using the worldline path integral variant of the Bern--Kosower formalism. Numerical comparison (using programs that we have made available for public access on the Internet) shows that the results of the ...
['1996-05-07']
13,583
['eng']
['Kachru, S', 'Seiberg, N', 'Silverstein, E']
['SUSY gauge dynamics and singularities of 4d N=1 string vacua']
['Particle Physics - Theory']
['string model, heterotic', 'spontaneous compactification', 'vacuum state', 'moduli space', 'geometry, algebra', 'particle, multiplet', 'multiplet, particle', 'analytic properties']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605036']
['Many N=1 heterotic string compactifications exhibit physically mysterious singularities at codimension one in the moduli space of vacua. At these singularities, Yukawa couplings of charged fields develop poles as a function of the moduli. We explain these conformal field theory singularities, in a class of examples, ...
['1996-05-07']
13,584
['eng']
['Pawlowski, J M']
['Exact flow equations and the U(1)-problem']
['Particle Physics - Theory']
['gauge field theory, SU(N)', 'fermion', 'path integral', 'effective action', 'field theory, instanton', 'operator, Dirac', 'zero mode']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605037']
['The effective action of a SU(N)-gauge theory coupled to fermions is evaluated at a large infrared cut-off scale k within the path integral approach. The gauge field measure includes topological non-trivial configurations (instantons). Due to the explicit infrared regularization there are no gauge field zero modes. Th...
['1996-05-07']
13,585
['eng']
['Fucito, F', 'Martellini, M', 'Zeni, M']
['The BF formalism for QCD and quark confinement']
['Particle Physics - Theory']
['field theory, BF', 'gauge field theory, SU(N)', 'flux, magnetic', 'magnetic, flux', 'quark, confinement', 'Wilson loop', 'string tension', 'gauge, abelian', 'bibliography']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605018']
["Using the BF version of pure Yang-Mills, it is possible to find a covariant representation of the 't Hooft magnetic flux operator. In this framework, 't Hooft's pioneering work on confinement finds an explicit realization in the continuum. Employing the Abelian projection gauge we compute the expectation value of the...
['1996-05-06']
13,586
['eng']
['Ishikawa, H', 'Matsuo, Y', 'Sugawara, Y', 'Sugiyama, K']
['BPS mass spectrum from d-brane action']
['Particle Physics - Theory']
['membrane model, p-brane', 'field equations, soliton', 'string model, heterotic', 'duality, transformation', 'mass spectrum']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605023']
['We derive the BPS mass formulae of the Dirichlet branes from the Born-Infeld type action. BPS saturation is realized when the brane has the minimal volume while keeping the appropriate winding numbers. We apply the idea to two cases, type IIA superstring compactified on T^4 and K3. The result is consistent with the s...
['1996-05-06']
13,587
['eng']
['Leseduarte, S', 'Romeo, A']
['Complete $\\zeta$-function approach to the electromagnetic Casimir effect for spheres and circles']
['Particle Physics - Theory']
['electromagnetic interaction', 'effect, Casimir', 'space-time, sphere', 'space-time, circle', 'regularization, zeta function', 'analytic properties', 'bibliography']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605022']
['A technique for evaluating the electromagnetic Casimir energy in situations involving spherical or circular boundaries is presented. Zeta function regularization is unambiguously used from the start and the properties of Bessel and related zeta functions are central. Nontrivial results concerning these functions are ...
['1996-05-06']
13,588
['eng']
['Pietro, R']
['Quaternionic electroweak theory']
['Particle Physics - Theory']
['electroweak interaction', 'algebra, quaternion', 'mechanics, classical', 'quantum mechanics', 'Lagrangian formalism', 'Higgs model', 'algebra, Lie']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605019']
['We explicitly develop a quaternionic version of the electroweak theory, based on the local gauge group U(1, \\; q)_{L}\\mid U(1, \\; c)_{Y}. The need of a complex projection for our Lagrangian and the physical significance of the anomalous scalar solutions are also discussed.']
['1996-05-06']
13,589
['eng']
['Lucke, K']
["On Zhu's associative algebra as a tool in the representation theory of vertex operator algebras"]
['Particle Physics - Theory']
['field theory, conformal', 'dimension, 2', 'operator, vertex', 'operator, algebra', 'algebra, Heisenberg', 'algebra, representation']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605020']
["We describe an approach to classify (meromorphic) representations of a given vertex operator algebra by calculating Zhu's algebra explicitly. We demonstrate this for FKS lattice theories and subtheories corresponding to the Z_2 reflection twist and the Z_3 twist. Our work is mainly offering a novel uniqueness tool, b...
['1996-05-06']
13,590
['eng']
['Dalvit, D A R', 'Mazzitelli, F D']
['Exact CTP renormalization group equation for the coarse grained effective action']
['Particle Physics - Theory']
['phi**n model, 4', 'path integral', 'effective action', 'perturbation theory, higher-order', 'renormalization group', 'expansion, derivative', 'critical phenomena', 'numerical calculations']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605024']
['We consider a scalar field theory in Minkowski spacetime and define a coarse grained Closed Time Path (CTP) effective action by integrating quantum fluctuations of wavelengths shorter than a critical value. We derive an exact CTP renormalization group equation and solve it using a derivative expansion approach. Expli...
['1996-05-06']
13,591
['eng']
['Takata, H']
['D quantum n-dilaton gravity and one-loop divergence of effective action on constant dilaton']
['Particle Physics - Theory']
['quantum gravity', 'field theory, dilaton', 'effective action', 'perturbation theory, higher-order', 'renormalization']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605025']
['We consider 4D quantum gravity with N-dilatons with the most general couplings. Especially, on constant dilaton and arbitrary metric background, we show the structure of the divergent terms. We show the constraint between the couplings necessary to cancel the coefficient of the square of the Wyle tensor. Next we show...
['1996-05-06']
13,592
['eng']
['Elizalde, E', 'Lygren, M', 'Vasilevich, D V']
['$\\zeta$ function for the Laplace operator acting on forms in a ball with gauge boundary conditions']
['Particle Physics - Theory']
['space-time', 'operator, differential', 'regularization, zeta function', 'analytic properties']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605026']
["The Laplace operator acting on antisymmetric tensor fields in a D--dimensional Euclidean ball is studied. Gauge-invariant local boundary conditions (absolute and relative ones, in the language of Gilkey) are considered. The eigenfuctions of the operator are found explicitly for all values of D. Using in a row a numbe...
['1996-05-06']
13,593
['eng']
['Elias, V', 'McKeon, D G C', 'Miransky, V A', 'Shovkovy, I A']
['The Gross-Neveu model and the supersymmetric and non-supersymmetric Nambu - Jona-Lasinio model in a magnetic field']
['Particle Physics - Theory']
['Gross-Neveu model', 'Jona-Lasinio-Nambu model', 'supersymmetry', 'magnetic field', 'effective action', 'regularization, zeta function', 'analytic properties', 'symmetry breaking, chiral']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605027']
['The infrared dynamics in the (3+1)--dimensional supersymmetric and non--supersymmetric Nambu--Jona--Lasinio model in a constant magnetic field is studied. It is shown that while at strong coupling the dynamics in these two models is essentially different, the models become equivalent at weak coupling. In particular, ...
['1996-05-06']
13,594
['eng']
['Bachas, C P', 'Fabre, C']
['Threshold effects in open-string theory']
['Particle Physics - Theory']
['string model, heterotic', 'string, open', 'spontaneous compactification', 'field theory, orbifold', 'effective action', 'perturbation theory, higher-order', 'renormalization']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605028']
['We analyze the one-loop effective gauge-field action in Z_2-orbifold compactifications of type-I theory. We show how, for non-abelian group factors, the threshold effects are ultraviolet finite though given entirely by a six-dimensional field theory expression.']
['1996-05-06']
13,595
['eng']
['Castro, C']
['On the exact quantum integrability of the membrane']
['Particle Physics - Theory']
['membrane model', 'quantization', 'integrability', 'gauge field theory, SU(infinity)', 'field theory, Toda', 'algebra, W(infinity)', 'algebra, representation']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605029']
['The exact quantum integrability problem of the membrane is investigated. It is found that the spherical membrane moving in flat target spacetime backgrounds is an exact quantum integrable system for a particular class of solutions of the light-cone gauge equations of motion : a dimensionally-reduced SU(\\infty) Yang-...
['1996-05-06']
13,596
['eng']
['Viswanathan, K S', 'Parthasarathy, R']
['String theory in curved space-time']
['Particle Physics - Theory']
['space-time', 'string model', 'differential geometry', 'field equations', 'quantization', 'path integral', 'perturbation theory, higher-order']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605007']
['Intrinsic and extrinsic geometric properties of string world sheets in curved space-time background are explored. In our formulation, the only dynamical degrees of freedom of the string are its immersion coordinates. Classical equation of motion and the space-time energy-momentum tensor of the string are obtained. Th...
['1996-05-03']
13,597
['eng']
['Filippov, A T']
['Exact solutions of 1+1 dimensional dilaton gravity coupled to matter']
['Particle Physics - Theory']
['gravitation, dilaton', 'field theory, scalar', 'electromagnetic field', 'dimension, 2', 'integrability', 'field equations, solution', 'Hamiltonian formalism', 'quantization', 'black hole, Schwarzschild', 'hair']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605008']
["A class of integrable models of 1+1 dimensional dilaton gravity coupled to scalar and electromagnetic fields is obtained and explicitly solved. More general models are reduced to 0+1 dimensional Hamiltonian systems, for which two integrable classes (called s-integrable) are found and explicitly solved. As a special c...
['1996-05-03']
13,598
['eng']
['Lambert, N D']
['Heterotic p-branes from massive sigma models']
['Particle Physics - Theory']
['sigma model, nonlinear', 'supersymmetry', 'field equations, soliton', 'membrane model, p-brane']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605010']
['We explicitly construct massive (0,4) supersymmetric ADHM sigma models which have heterotic p-brane solitons as their conformal fixed points. These yield the familiar gauge 5-brane and a new 1-brane solution which preserve 1/2 and 1/4 of the spacetime supersymmetry respectively. We also discuss an analogous construct...
['1996-05-03']
13,599
['eng']
['Erdmenger, J', 'Osborn, H']
['Conserved currents and the energy momentum tensor in conformally invariant theories for general dimensions']
['Particle Physics - Theory']
['field theory, conformal', 'any-dimensional', 'tensor, energy-momentum', 'current, conservation law', 'n-point function', 'Ward identity', 'renormalization group', 'effective action', 'anomaly']
['http://preprints.cern.ch/cgi-bin/setlink?base=preprint&categ=hep-th&id=9605009']
['The implications of conformal invariance, as relevant in quantum field theories at a renormalisation group fixed point, are analysed with particular reference to results for correlation functions involving conserved currents and the energy momentum tensor. Ward identities resulting from conformal invariance are discu...
['1996-05-03']