Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR3.4k papers
- Lyon 1 UniversitéFR2k papers
- Centre de Recherche Astrophysique de LyonFR1.3k papers
- Laboratoire de Physique de l'ENS de LyonFR1.3k papers
- Université de LyonFR537 papers
- Unité de Mathématiques Pures et AppliquéesFR399 papers
- European Southern ObservatoryCL328 papers
- Laboratoire de l'Informatique du ParallélismeFR328 papers
- Sorbonne UniversitéFR283 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR269 papers
- Université Grenoble AlpesFR236 papers
- Institut national de recherche en sciences et technologies du numériqueFR233 papers
38 papers · 1 filter
Correlators of the phase model
N. M. Bogoliubov, A. G. Izergin, N. A. Kitanine
We introduce the phase model on a lattice and solve it using the algebraic Bethe ansatz. Time-dependent temperature correlation functions of phase operators and the "darkness forma…
Aspects of N_{T}\geq 2 Topological Gauge Theories and D-Branes
Matthias Blau, George Thompson
We comment on various aspects of topological gauge theories possessing N_{T}\geq 2 topological symmetry: (1) We show that the construction of Vafa-Witten and Dijkgraaf-Moore of `ba…
Drinfel'd Twists and Algebraic Bethe Ansatz
J. M. Maillet, J. Sanchez de Santos
We study representation theory of Drinfel'd twists, in terms of what we call F matrices, associated to finite dimensional irreducible modules of quantum affine algebras, and which…
New super KdV system with the N=4 SCA as the hamiltonian structure
F. Delduc, L. Gallot, E. Ivanov
We present a new integrable extension of the a=-2, N=2 SKdV hierarchy, with the "small" N=4 superconformal algebra (SCA) as the second hamiltonian structure. As distinct from the p…
Kosterlitz--Thouless Phase Transitions on Discretized Random Surfaces
A. Matytsin, P. Zaugg
The large N limit of a one-dimensional infinite chain of random matrices is investigated. It is found that in addition to the expected Kosterlitz--Thouless phase transition this mo…
Aging and effective temperatures in the low temperature mode-coupling equations
Leticia F. Cugliandolo, Jorge Kurchan
The low-temperature generalization of the mode-coupling equations corresponds to the dynamics of mean-field disordered models in the glassy phase. The system never achieves equilib…
Energy flow, partial equilibration and effective temperatures in systems with slow dynamics
Leticia F. Cugliandolo, Jorge Kurchan, Luca Peliti
We show that, in nonequilibrium systems with small heat flows, there is a time-scale dependent effective temperature which plays the same role as the thermodynamical temperature, i…
The U.V. Price for Symmetry Non-Restoration
Jean Orloff
We study the non restoration of symmetries with a local order parameter in field theory at finite temperature. After giving an interpretation of the phenomenon, we show that hierar…
The structure and phase stability of CO adsorbates on Rh(110)
Dario Alfe', Stefano Baroni
The structure of CO adsorbates on the Rh(110) surface is studied at full coverage using first-principles techniques. The relative energies of different adsorbate geometries are det…
Non integrable representations of the restricted quantum analogue of sl(3) at roots of 1
Daniel Arnaudon
The structure of irreducible representations of (restricted) U_q(sl(3)) at roots of unity is understood within the Gelfand--Zetlin basis. The latter needs a weakened definition for…
Phonon Softening and Elastic Instabilities in the Cubic-to-Orthorhombic Structural Transition of CsH
A. M. Saitta, D. Alfe`, S. de Gironcoli +1
The cubic-to-orthorhombic structural transition occurring in CsH at a pressure of about 17 GPa is studied by ab initio calculations. The relative stability of the competing structu…
N=2 KP and KdV hierarchies in extended superspace
F. Delduc, L. Gallot
We give the formulation in extended superspace of an supersymmetric KP hierarchy using chirality preserving pseudo-differential operators. We obtain two quadratic hamiltonian…
d=2, N=2 Superconformal Symmetries and Models
Francois Delduc, Francois Gieres, Stephane Gourmelen
We discuss the following aspects of two-dimensional N=2 supersymmetric theories defined on compact super Riemann surfaces: parametrization of (2,0) and (2,2) superconformal structu…
Non Abelian Bosonization in Two and Three Dimensions
J. C. Le Guillou, E. Moreno, C. Nunez +1
We discuss non-Abelian bosonization of two and three dimensional fermions using a path-integral framework in which the bosonic action follows from the evaluation of the fermion det…
Enhanced photon production near the light-cone by a hot plasma
Francois Gelis
Strong collinear divergences, although regularized by a thermal mass, result in a breakdown of the standard hard thermal loop expansion in the calculation of the production rate of…
On pentagon, ten-term, and tetrahedron relations
R. M. Kashaev, S. M. Sergeev
The tetrahedron equation in a special substitution is reduced to a pair of pentagon and one ten-term equations. Various examples of solutions are found. -doubles of Novikov, whi…
Contribution of brown dwarfs and white dwarfs to recent microlensing observations and to the halo mass budget
Gilles Chabrier, Laurent Segretain, Dominique Méra
We examine the recent results of the MACHO collaboration towards the Large Magellanic Cloud (Alcock et al. 1996) in terms of a halo brown dwarf or white dwarf population. The possi…
Abelian Flavour Symmetries in Supersymmetric Models
E. Dudas, C. Grojean, S. Pokorski +1
We propose a theory of flavour based on abelian horizontal gauge symmetries and modular invariances. We construct explicit supergravity models where the scale of the horizontal $U(…
Microscopic Derivation of Non-Markovian Thermalization of a Brownian Particle
Lydéric Bocquet, Jarosław Piasecki
In this paper, the first microscopic approach to the Brownian motion is developed in the case where the mass density of the suspending bath is of the same order of magnitude as tha…
Note on Constrained Cohomology
Francois Delduc, Nicola Maggiore, Olivier Piguet +1
The cohomology of the BRS operator corresponding to a group of rigid symmetries is studied in a space of local field functionals subjected to a condition of gauge invariance. We pr…
Solutions of the elliptic qKZB equations and Bethe ansatz I
Giovanni Felder, Alexander Varchenko, Vitaly Tarasov
We give an integral representation for solutions of the elliptic quantum Knizhnik-Zamolodchikov-Bernard difference equations, in the case of sl(2). The result is based on a geometr…
W-realization of Lie algebras: application to so(4,2) and Poincare algebras
F. Barbarin, E. Ragoucy, P. Sorba
The property of some finite W-algebras to appear as the commutant of a particular subalgebra in a simple Lie algebra G is exploited for the obtention of new G-realizations from a "…
Binary friction tensor for Brownian particles : overcoming spurious finite-size effects
Lydéric Bocquet, Jean-Pierre Hansen, Jaroslaw Piasecki
Starting from a careful analysis of the coupled Langevin equations for two interacting Brownian particles, we derive a method for extracting the binary friction tensor from the cor…
High friction limit of the Kramers equation : the multiple time-scale approach
Lydéric Bocquet
The purpose of the paper is to give a pedagogical introduction to the multiple time-scale technique, on the example of the high friction limit of the Kramers equation. We begin wit…