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
50 papers · 1 filter
Non-perturbative summation over 3D discrete topologies
Laurent Freidel, David Louapre
We construct a group field theory which realizes the sum of gravity amplitudes over all three dimensional topologies trough a perturbative expansion. We prove this theory to be uni…
Atmospheres of Magnetized Neutron Stars: Vacuum Polarization and Partially Ionized Models
Wynn C. G. Ho, Dong Lai, Alexander Y. Potekhin +1
We construct hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with surface fields B=10^12-5x10^14 G and effective temperatures T_eff a few x 10^5-10…
Equation of state and opacities for hydrogen atmospheres of neutron stars with strong magnetic fields
A. Y. Potekhin, G. Chabrier
We present an equation of state and radiative opacities for a strongly magnetized hydrogen plasma at magnetic fields B, temperatures T, and densities ρtypical for atmospheres of is…
Dense astrophysical plasmas
G. Chabrier, F. Douchin, A. Y. Potekhin
We briefly examine the properties of dense plasmas characteristic of the atmospheres of neutron stars and of the interior of massive white dwarfs. These astrophysical bodies are na…
First order asymptotics of matrix integrals ; a rigorous approach towards the understanding of matrix models
Alice Guionnet
We investigate the limit behaviour of the spectral measures of matrices following the Gibbs measure for the Ising model on random graphs, Potts model on random graphs, matrices cou…
The dimension of the SLE curves
Vincent Beffara
Let be the curve generating a Schramm--Loewner Evolution (SLE) process, with parameter . We prove that, with probability one, the Hausdorff dimension of is equal to…
Competing interactions in the XYZ model
M. Arlego, D. C. Cabra, J. E. Drut +1
We study the interplay between a XY anisotropy , exchange modulations and an external magnetic field along the z direction in the XYZ chain using bosonization and Lanczos diagon…
Intermittency in aging
L. Buisson, L. Bellon, S. Ciliberto
The fluctuation-dissipation relation (FDR) is measured on the dielectric properties of a gel (Laponite) and of a polymer glass (polycarbonate). For the gel it is found that during…
Temperature inversion in granular fluids under gravity
Rosa Ramirez, Rodrigo Soto
We study, via hydrodynamic equations, the granular temperature profile of a granular fluid under gravity and subjected to energy injection from a base. It is found that there exist…
Cellular automata and communication complexity
Christoph Durr, Ivan Rapaport, Guillaume Theyssier
The model of cellular automata is fascinating because very simple local rules can generate complex global behaviors. The relationship between local and global function is subject o…
Nanorheology : an Investigation of the Boundary Condition at Hydrophobic and Hydrophilic Interfaces
C. Cottin-Bizonne, S. Jurine, J. Baudry +3
t has been shown that the flow of a simple liquid over a solid surface can violate the so-called no-slip boundary condition. We investigate the flow of polar liquids, water and gly…
Large distance asymptotic behavior of the emptiness formation probability of the XXZ spin-1/2 Heisenberg chain
N. Kitanine, J. M. Maillet, N. A. Slavnov +1
Using its multiple integral representation, we compute the large distance asymptotic behavior of the emptiness formation probability of the XXZ spin-1/2 Heisenberg chain in the mas…
Ensemble Inequivalence in Mean-field Models of Magnetism
Julien Barre', David Mukamel, Stefano Ruffo
Mean-field models, while they can be cast into an {\it extensive} thermodynamic formalism, are inherently {\it non additive}. This is the basic feature which leads to {\it ensemble…
Aging in humid granular media
F. Restagno, C. Ursini, H. Gayvallet +1
Aging behavior is an important effect in the friction properties of solid surfaces. In this paper we investigate the temporal evolution of the static properties of a granular mediu…
Asymptotics of 6j and 10j symbols
Laurent Freidel, David Louapre
It is well known that the building blocks for state sum models of quantum gravity are given by 6j and 10j symbols. In this work we study the asymptotics of these symbols by using t…
Numerical simulations of surface convection in a late M-dwarf
H. -G. Ludwig, F. Allard, P. H. Hauschildt
Based on detailed 2D and 3D numerical radiation-hydrodynamics (RHD) simulations of time-dependent compressible convection, we have studied the dynamics and thermal structure of the…
Shear localization in a model glass
F. Varnik, L. Bocquet, J. -L. Barrat +1
Using molecular dynamics simulations, we show that a simple model of a glassy material exhibits the shear localization phenomenon observed in many complex fluids. At low shear rate…
Out of equilibrium statistical ensembles for mesoscopic rings coupled to reservoirs
S. Peysson, P. Degiovanni, B. Douçot +1
We derive non equilibrium statistical ensembles for a ballistic Aharonov-Bohm loop connected to several electrodes connected to reservoirs with different chemical potentials. A str…
The Hamiltonian Mean Field Model: from Dynamics to Statistical Mechanics and back
Thierry Dauxois, Vito Latora, Andrea Rapisarda +2
The thermodynamics and the dynamics of particle systems with infinite-range coupling display several unusual and new features with respect to systems with short-range interactions.…
Dynamics and Thermodynamics of Systems with Long Range Interactions: an Introduction
Thierry Dauxois, Stefano Ruffo, Ennio Arimondo +1
We review theoretical results obtained recently in the framework of statistical mechanics to study systems with long range forces. This fundamental and methodological study leads u…
Aging phenomena in nonlinear dissipative chains: Application to polymer
F. Gobet, S. Ciliberto, T. Dauxois
We study energy relaxation in a phenomenological model for polymer built from rheological considerations: a one dimensional nonlinear lattice with dissipative couplings. These coup…
Statistical properties of one dimensional "turbulence"
Michel Peyrard, Isabelle Daumont
We study a one-dimensional discrete analog of the von Karman flow, widely investigated in turbulence. A lattice of anharmonic oscillators is excited by both ends in order to create…
Effective interactions and phase behaviour for a model clay suspension in an electrolyte
E. Trizac, L. Bocquet, R. Agra +2
Since the early observation of nematic phases of disc-like clay colloids by Langmuir in 1938, the phase behaviour of such systems has resisted theoretical understanding. The main r…
The Coupled Electronic-Ionic Monte Carlo Simulation Method
David Ceperley, Mark Dewing, Carlo Pierleoni
Quantum Monte Carlo (QMC) methods such as Variational Monte Carlo, Diffusion Monte Carlo or Path Integral Monte Carlo are the most accurate and general methods for computing total…