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
54 papers · 1 filter
Ground states of quantum kagome antiferromagnets in a magnetic field
D. C. Cabra, M. D. Grynberg, P. Pujol
We study the ground state properties of a quantum antiferromagnet in the kagome lattice in the presence of a magnetic field, paying particular attention to the stability of the pla…
Simulation of induction at low magnetic Prandtl number
Yannick Ponty, Helene Politano, Jean-Francois Pinton
We consider the induction of magnetic field in flows of electrically conducting fluid at low magnetic Prandtl number and large kinetic Reynolds number. Using the separation between…
Observation of near-critical reflection of internal waves in a stably stratified fluid
Thierry Dauxois, Anthony Didier, Eric Falcon
An experimental study is reported of the near-critical reflection of internal gravity waves over sloping topography in a stratified fluid. An overturning instability close to the s…
Investigating Rare Events by Transition Interface Sampling
Daniele Moroni, Titus S. van Erp, Peter G. Bolhuis
We briefly review simulation schemes for the investigation of rare transitions and we resume the recently introduced Transition Interface Sampling, a method in which the computatio…
Experimental test of the Gallavotti-Cohen fluctuation theorem in turbulent flows
S. Ciliberto, N. Garnier, S. Hernandez +2
We test the fluctuation theorem from measurements in turbulent flows. We study the time fluctuations of the force acting on an obstacle, and we consider two experimental situations…
Vibrated granular media as experimentally realizable Granular Gases
Sean McNamara, Eric Falcon
We report numerical simulations of strongly vibrated granular materials designed to mimic recent experiments performed both in presence [1] or absence [2] of gravity. We show that…
A Remark on the Kramers Problem
A. Samoletov
We present new point of view on the old problem, the Kramers problem. The passage from the Fokker-Planck equation to the Smoluchowski equation, including corrections to the Smoluch…
Density profiles in a quantum Coulomb fluid near a hard wall
Jean-Noel Aqua, Francoise Cornu
Equilibrium particle densities near a hard wall are studied for a quantum fluid made of point charges which interact via Coulomb potential without any regularization. In the framew…
Power and heat fluctuation theorems for electric circuits
R. van Zon, S. Ciliberto, E. G. D. Cohen
Using recent fluctuation theorems from nonequilibrium statistical mechanics, we extend the theory for voltage fluctuations in electric circuits to power and heat fluctuations. They…
Nonlinear electrical conductivity in a 1D granular medium
Eric Falcon, Bernard Castaing, Mathieu Creyssels
We report on observations of the electrical transport within a chain of metallic beads (slightly oxidised) under an applied stress. A transition from an insulating to a conductive…
On the Rapid Increase of Intermittency in the Near-Dissipation Range of Fully Developed Turbulence
Laurent Chevillard, Bernard Castaing, Emmanuel Leveque
Intermittency, measured as log(F(r)/3), where F(r) is the flatness of velocity increments at scale r, is found to rapidly increase as viscous effects intensify, and eventually satu…
Dynamical obstruction in a constrained system and its realization in lattices of superconducting devices
C. Castelnovo, P. Pujol, C. Chamon
Hard constraints imposed in statistical mechanics models can lead to interesting thermodynamical behaviors, but may at the same time raise obstructions in the thoroughfare to therm…
The linearization of the Kodama state
Laurent Freidel, Lee Smolin
We study the question of whether the linearization of the Kodama state around classical deSitter spacetime is normalizable in the inner product of the theory of linearized graviton…
Rate constants for diffusive processes by partial path sampling
Daniele Moroni, Peter G. Bolhuis, Titus S. van Erp
We introduce a path sampling method for the computation of rate constants for systems with a highly diffusive character. Based on the recently developed algorithm of transition int…
Soft modes in the easy plane pyrochlore antiferromagnet
J D M Champion, P C W Holdsworth
Thermal fluctuations lift the high ground state degeneracy of the classical nearest neighbour pyrochlore antiferromagnet, with easy plane anisotropy, giving a first order phase tra…
Thermal states of coldest and hottest neutron stars in soft X-ray transients
D. G. Yakovlev, K. P. Levenfish, A. Y. Potekhin +2
We calculate the thermal structure and quiescent thermal luminosity of accreting neutron stars (warmed by deep crustal heating in accreted matter) in soft X-ray transients (SXTs).…
Lagrangian Velocity Statistics in Turbulent Flows: Effects of Dissipation
L. Chevillard, S. G. Roux, E. Leveque +3
We use the multifractal formalism to describe the effects of dissipation on Lagrangian velocity statistics in turbulent flows. We analyze high Reynolds number experiments and direc…
On a small cancellation theorem of Gromov
Yann Ollivier
We give a combinatorial proof of a theorem of Gromov, which extends the scope of small cancellation theory to group presentations arising from labelled graphs.
Statistical theory of high-gain free-electron laser saturation
Julien Barre', Thierry Dauxois, Giovanni De Ninno +2
We propose a new approach, based on statistical mechanics, to predict the saturated state of a single-pass, high-gain free-electron laser (FEL). In analogy with the violent relaxat…
An integral equation approach to effective interactions between polymers in solution
V. Krakoviack, B. Rotenberg, J. -P. Hansen
We use the thread model for linear chains of interacting monomers, and the ``polymer reference interaction site model'' (PRISM) formalism to determine the monomer-monomer pair corr…
Autonomous Energy Transducer: Proposition, Example, Basic Characteristics
Naoko Nakagawa, Kunihiko Kaneko
We propose a concept of autonomous energy transducer at a molecular scale, where output is produced with small input energy, of the same order of the thermal energy, without restri…
Equation of state and opacities for hydrogen atmospheres of magnetars
A. Y. Potekhin, G. Chabrier
The equation of state and radiative opacities of partially ionized, strongly magnetized hydrogen plasmas, presented in a previous paper [ApJ 585, 955 (2003), astro-ph/0212062] for…
Atmospheres and Spectra of Strongly Magnetized Neutron Stars -- III. Partially Ionized Hydrogen Models
Wynn C. G. Ho, Dong Lai, Alexander Y. Potekhin +1
We construct partially ionized hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with surface fields B=10^12-5 \times 10^14 G and effective temperatu…
Sticky behavior of fluid particles in the compressible Kraichnan model
Krzysztof Gawedzki, Peter Horvai
We consider the compressible Kraichnan model of turbulent advection with small molecular diffusivity and velocity field regularized at short scales to mimic the effects of viscosit…