Driven nonequilibrium lattice systems with shifted periodic boundary conditions |
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| Authors: | J. L. Vallés K. -t. Leung R. K. P. Zia |
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| Affiliation: | (1) Courant Institute of Mathematical Sciences, New York University, 10012 New York, New York;(2) Present address: School of Physics and Astronomy, University of Minnesota, 55455 Minneapolis, Minnesota;(3) Minnesota Supercomputer Institute, 55415 Minneapolis, Minnesota;(4) Center for Transport Theory and Mathematical Physics and Physics Department, Virginia Polytechnic Institute and State University, 24061 Blacksburg, Virginia |
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| Abstract: | ![]()
We present the first study of a driven nonequilibrium lattice system in the two-phase region, withshifted periodic boundary conditions, forcing steps into the interface. When the shift corresponds to small angles with respect to the driving field, we find nonanalytic behavior in the (internal) energy of the system, supporting numerical evidence that interface roughness is suppressed by the field. For larger shifts, the competition between the driving field and the boundary induces the breakup of a single strip with tilted interfaces into many narrower strips with aligned interfaces. The size and temperature dependences of the critical angles of such breakup transitions are studied. |
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| Keywords: | Nonequilibrium steady state system interfaces phase transitions |
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