We compare results of the exact field theory of phase separation in two dimensions with Monte Carlo simulations for the q-state Potts model with boundary conditions producing an interfacial region separating two pure phases. We confirm in particular the theoretical predictions that below critical temperature the surplus of non-boundary colors appears in drops along a single interface, while for q > 4 at critical temperature there is formation of two interfaces enclosing a macroscopic disordered layer. These qualitatively different structures of the interfacial region can be discriminated through a measurement at a single point for different system sizes.

Structure of interfaces at phase coexistence. Theory and numerics / Delfino, Gesualdo; Selke, Walter; Squarcini, Alessio. - In: JOURNAL OF STATISTICAL MECHANICS: THEORY AND EXPERIMENT. - ISSN 1742-5468. - 2018:5(2018), pp. 1-10. [10.1088/1742-5468/aabbe2]

Structure of interfaces at phase coexistence. Theory and numerics

Delfino, Gesualdo;Squarcini, Alessio
2018

Abstract

We compare results of the exact field theory of phase separation in two dimensions with Monte Carlo simulations for the q-state Potts model with boundary conditions producing an interfacial region separating two pure phases. We confirm in particular the theoretical predictions that below critical temperature the surplus of non-boundary colors appears in drops along a single interface, while for q > 4 at critical temperature there is formation of two interfaces enclosing a macroscopic disordered layer. These qualitatively different structures of the interfacial region can be discriminated through a measurement at a single point for different system sizes.
2018
5
1
10
053203
http://iopscience.iop.org/article/10.1088/1742-5468/aabbe2/pdf
Delfino, Gesualdo; Selke, Walter; Squarcini, Alessio
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11767/85722
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