Zeitschrift für Physik B Condensed Matter

, Volume 82, Issue 1, pp 121–127

Effects of bulk diffusion on interfacial dynamics

  • R. Bausch
  • V. Dohm
  • H. K. Janssen
  • R. K. P. Zia
Article

Abstract

We study the influence of bulk diffusion on the dynamics of an interface in the two-phase region of two component systems. We establish a set of equations of motion describing capillary waves and their coupling to a slow diffusion mode in the bulk. Valid for the general case of density dependent bulk diffusion coefficients, these equations are both non-local and non-linear. The nonlinearity is a realization of the full Galilean symmetry associated with the system. Studying the dispersion relations for the linear regime, we find a significant difference between systems with Ising symmetry and those without.

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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • R. Bausch
    • 1
  • V. Dohm
    • 2
  • H. K. Janssen
    • 3
  • R. K. P. Zia
    • 4
  1. 1.Institut für Theoretische PhysikUniversität DüsseldorfDüsseldorfGermany
  2. 2.Institut für Theoretische PhysikTechnische Hochschule AachenAachenGermany
  3. 3.Institut für Theoretische PhysikUniversität DüsseldorfDüsseldorfGermany
  4. 4.Physics DepartmentVirginia Polytechnic Institute and State UniversityBlacksburgUSA

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