2011/06/29 by I. Santamarı́a-Holek, I Santamaría-Holek, Santamaría-Holek, I +2
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #FOS: Physical sciences #Quantum Mechanics and Applications #Spectroscopy and Quantum Chemical Studies #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.stat-mech
paper · pdf · doi:10.48550/arxiv.1106.5896
15pgs/2figs. Accepted for publication in The Journal of Physical Chemistry B, june 28, 2011
arxiv created 2011/06/29 · openalex publication_date 2011/06/29 · arxiv updated 2011/06/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We calculate the nonequilibrium mean-field 'temperature' of a Brownian system in contact with a heat bath. We consider two different cases: an equilibrium bath in the presence of strong external forces and a nonequilibrium bath. By proving the existence of a generalized fluctuation-dissipation relation this mean-field 'temperature' can be used to describe a nonequilibrium system as is if it were in thermal equilibrium with a thermal bath at the mean-field 'temperature' mentioned above. We apply our results to chemical reactions in the presence of external forces showing how chemical equilibrium and Kramers rate constants are modified by the presence of these forces.