Abstract
The nucleation rate of interacting thermal kinks and antikinks in a sine-Gordon chain is evaluated within the dilute-gas approximation. Our novel result describes both the diffusive and nondiffusive limits. In comparison with the nondiffusive and noninteracting nucleation rate calculated previously by Büttiker and Landauer, interactions modify the temperature dependence of the prefactor and, in the diffusive limit, the Arrhenius factor as well.
- Received 21 January 1988
DOI:https://doi.org/10.1103/PhysRevLett.60.2563
©1988 American Physical Society
