Studies of non-equilibrium fluctuations have held a center stage during the past few decades of the development of non-equilibrium statistical mechanics. Indeed, macroscopic fluctuations are supposed to display some universal behaviour, regardless of the precise microscopic dynamics of the process under study. In this talk, we shall consider a few examples of non-equilibrium fluctuations: the particle current in an interacting particle system, the diffusion of a tracer in a one-dimensional gas of particles with excluded mutual passage and the melting of an Ising quadrant. These different problems will be analyzed quantitatively with the help of the macroscopic fluctuation theory.

Kirone Mallick (CEA)Fri, Feb 26

Studies of non-equilibrium fluctuations have held a center stage during the past few decades of the development of non-equilibrium statistical mechanics. Indeed, macroscopic fluctuations are supposed to display some universal behaviour, regardless of the precise microscopic dynamics of the process under study. In this talk, we shall consider a few examples of non-equilibrium fluctuations: the particle current in an interacting particle system, the diffusion of a tracer in a one-dimensional gas of particles with excluded mutual passage and the melting of an Ising quadrant. These different problems will be analyzed quantitatively with the help of the macroscopic fluctuation theory.