Phone: (33)4.72.72.84.79 Fax: (33)4.72.72.80.80 Office: R123 Laboratoire de Physique Ecole Normale Supérieure de Lyon 46 Allée d'Italie 69364 Lyon CEDEX 07 email: Nicolas.Garnier_(at)_ens-lyon.fr see also: my CNS webpage (Atlanta)

Fluctuations in systems out of (or even far from) equilibrium.

• An introduction to this topic (pdf slides) that I gave at the GDR Phenix meeting on November 30th 2006.
• Experimental measurements of the fluctuations of the work W given to and the heat Q dissipated by an harmonic oscillator in contact with a thermostat, together with an analytical derivation of the the probability density function of W and Q. Fluctuation Theorems for those two quantities are studied :
  • arXiv preprint for the work W (letter).
  • arXiv preprint for the heat Q (letter).
  • arXiv preprint of a full report on fluctuations of W and Q, with a formulation of the first principle, the study of transient evolutions and steady states (with a linear or sinusoidal time-prescription of the driving), and the definition of the distance from equilibrium.
• arXiv preprint Fluctuations in a resistor : Fluctuation Dissipation Theorem (FDT) and Fluctuation Theorems (FT) for work and heat have been tested on a model electrical system.
• arXiv preprint presenting a novel method (from Pierre Gaspard) to measure entropy production from time series, and how this has been exploited on our experimental data.
• arXiv preprint presenting experimental measurements of extreme fluctuations of large negative amplitude in two turbulent flows, and how those fluctuations verify the Fluctuation Theorem.

Turbulence

• arXiv preprint reporting a measure of effective temperature of Turbulence, with Antoine Naert.

See this separate page for a short description.

They are listed on a separate page. There is a french pdf version.

• present: CNRS member, Laboratoire de Physique, Ecole Normale Supérieure de Lyon
• 2001-2002: Joseph Ford fellow at the Center for Nonlinear Science, Georgia Institute of Technology.
• 2000-2001: Departement Analyse et Surveillance de l'Environnement, CEA DAM.
• 1997-2000: Service de Physique de l'Etat condensé, CEA Saclay.

Diplomas

• Ph.D. University of Paris 7, (2000).
• M.Sc. (Statistical Physics and Nonlinear Phenomena) E.N.S. Lyon and U. Lyon I, (1997).
• graduated from the Ecole Normale Supérieure de Lyon and University Claude Bernard Lyon 1 (1994-1997).

• my personal home page, containing my Ph.D. dissertation (there is also a copy on the CCSD server : html, pdf).
• XVin development.
• travel plans.