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Phase transitions induced by thermal fluctuations

Author

Listed:
  • D. O. Kharchenko
  • A. V. Dvornichenko

Abstract

The present study generalizes the model of extended stochastic systems with a field-dependent kinetic coefficient [M. Ibanes, J. Garcia-Ojalvo, R. Toral, J.M. Sancho, Phys. Rev. Lett. 87, 020601 (2001)] to systems with symmetric and asymmetric bistable potentials. It is found that in systems with a relaxational flow and a symmetric local potential, reentrant phase transitions can be observed. In the case of an asymmetric local potential, a hysteresis-like behaviour in the order parameter appears. It is shown that such phase transitions can be controlled by the constant that governs relaxation flow, noise intensity and spatial coupling intensity. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Suggested Citation

  • D. O. Kharchenko & A. V. Dvornichenko, 2008. "Phase transitions induced by thermal fluctuations," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 61(1), pages 95-103, January.
    • Handle: RePEc:spr:eurphb:v:61:y:2008:i:1:p:95-103
    DOI: 10.1140/epjb/e2008-00035-y
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