Julian Lee
Published 2015-06-25Version 1
Microcanonical analysis is a powerful method for studying phase transition of finite-size systems. This method has been used so far only for studying the phase transition of an equilibrium system, which can be described by a microcanonical entropy. I show that it is possible to perform microcanonical analysis of a nonequilibrium phase transition, by generalizing the concept of microcanonical entropy. One-dimensional asymmetric diffusion process is studied as an example where such a generalized entropy can be explicitly found, and the microcanonical method is used to analyze the phase transition of the steady state.
Comments: 5 pages, 4 figures
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