Free Energy Functional for Nonequilibrium Systems: An Exactly Solvable Case

Details Free Energy Functional for Nonequilibrium Systems: An Exactly Solvable Case Free Energy Functional for Nonequilibrium Systems: An Exactly Solvable Case

2001-05-04

arxiv.org/abs/cond-mat/0105110v2

Phys. Rev. Lett. 87, Issue 15, 150601 (2001)

Physics

Condensed Matter

Statistical Mechanics

4 pages, RevTeX. Changes: correct minor errors, add reference, minor rewriting requested by editors and referee

Scientific paper

10.1103/PhysRevLett.87.150601

We consider the steady state of an open system in which there is a flux of matter between two reservoirs at different chemical potentials. For a large system of size $N$, the probability of any macroscopic density profile $\rho(x)$ is $\exp[-N{\cal F}(\{\rho\})]$; ${\cal F}$ thus generalizes to nonequilibrium systems the notion of free energy density for equilibrium systems. Our exact expression for $\cal F$ is a nonlocal functional of $\rho$, which yields the macroscopically long range correlations in the nonequilibrium steady state previously predicted by fluctuating hydrodynamics and observed experimentally.

Affiliated with

Also associated with

No associations

Rating

Free Energy Functional for Nonequilibrium Systems: An Exactly Solvable Case does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Free Energy Functional for Nonequilibrium Systems: An Exactly Solvable Case, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Free Energy Functional for Nonequilibrium Systems: An Exactly Solvable Case will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-249953