Instantons and Surface Tension at a First-Order Transition

Preprint

1 October 1993

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-lat/9310001

Abstract

We study the dynamics of the first order phase transition in the two dimensional 15-state Potts model, both at and off equilibrium. We find that phase changes take place through nucleation in both cases, and finite volume effects are described well through an instanton computation. Thus a dynamical measurement of the surface tension is possible. We find that the order-disorder surface tension is compatible with perfect wetting. An accurate treatment of fluctuations about the instanton solution is seen to be of great importance.

Keywords

INSTANTON SOLUTION
PHASE TRANSITION
SURFACE TENSION
FINITE VOLUME
STATE POTTS
POTTS MODEL
TRANSITION
NUCLEATION
TENSION

All Related Versions

Version 1, 1993-10-01, ArXiv
Published version: Physics Letters B, 325 (3-4), 418.

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