Energy flux distribution in a two-temperature Ising model

Details Energy flux distribution in a two-temperature Ising model Energy flux distribution in a two-temperature Ising model

2004-12-20

arxiv.org/abs/cond-mat/0412547v1

J. Stat. Mech. (2005) P02008

Physics

Condensed Matter

Statistical Mechanics

19 pages, 4 figures

Scientific paper

10.1088/1742-5468/2005/02/P02008

The nonequilibrium steady state of an infinite-range Ising model is studied. The steady state is obtained by dividing the spins into two groups and attaching them to two heat baths generating spin flips at different temperatures. In the thermodynamic limit, the resulting dynamics can be solved exactly, and the probability flow in the phase space can be visualized. We can calculate the steady state fluctuations far from equilibrium and, in particular, we find the exact probability distribution of the energy current in both the high- and low-temperature phase.

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