Document Type

Article

Publication Date

3-11-1998

Publication Title

Physics Letters, B

Abstract

We investigate the matching between (1+1)-dimensional nonlinear field theories coupled to an external stochastic environment and their lattice simulations. In particular, we focus on how to obtain numerical results which are lattice-spacing independent, and on how to extract the correct effective potential which emerges from the simulations. As an application, we study the thermal production of kink-antikink pairs, obtaining a number density of pairs which is lattice-spacing independent and the

DOI

10.1016/S0370-2693(97)01595-5

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