Novel stationary state in a two-temperature model with competing dynamics

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A two-dimensional half-filled lattice gas model with nearest-neighbour attractive interaction is studied where particles may be coupled to two thermal baths at different temperatures T1 and T2. The hopping of particles is governed by the heat bath at temperature T1 with probability p and the other heat bath at temperature T2 with probability 1-p independently of the hopping direction, In spite of the spatial isotropic dynamics, the stability of interface depends on its orientation: the vertical and horizontal interfaces become unstable and interfaces are stable in the diagonal directions. As a consequence, particles condense into a rifled square in the novel ordered state. The resulting non-equilibrium stationary state is studied as a function of competing parameter p and temperatures T1 and T2 by Monte Carlo simulation and analytical approximations as well.

Original languageEnglish
Number of pages1
JournalComputer Physics Communications
Publication statusPublished - Jan 1 1999
EventProceedings of the 1998 Europhysics Conference on Computational Physics (CCP 1998) - Granada, Spain
Duration: Sep 2 1998Sep 5 1998

ASJC Scopus subject areas

  • Hardware and Architecture
  • Physics and Astronomy(all)

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