skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Thermal nucleation of kink-antikink pairs

Abstract

We numerically study the thermal nucleaton of kink-antikink pairs in (1+1)-dimensional classical field theory coupled to a heat bath. We study the dependence of the kink lifetime and number density on temperature {ital and} on the coupling to the heat bath (viscosity). We qualitatively confirm Kramers's prediction of the viscosity dependence, and find a slight reduction in the effective kink mass compared with its zero-temperature value. We find no suppression of kink production beyond the Boltzmann factor, and we confirm a recent prediction of the renormalization of the barrier at high viscosity.

Authors:
; ;  [1]
  1. Institute for Theoretical Physics, University of California, Santa Barbara, California 93106 (United States) Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755 (United States)
Publication Date:
OSTI Identifier:
7044569
Resource Type:
Journal Article
Journal Name:
Physical Review Letters; (United States)
Additional Journal Information:
Journal Volume: 68:11; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; LANGEVIN EQUATION; SOLITONS; QUANTUM FIELD THEORY; STOCHASTIC PROCESSES; BARYONS; NONLINEAR PROBLEMS; NUMERICAL ANALYSIS; RENORMALIZATION; VISCOSITY; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FIELD THEORIES; HADRONS; MATHEMATICS; QUASI PARTICLES; 662110* - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)

Citation Formats

Alford, M, Feldman, H, and Gleiser, M. Thermal nucleation of kink-antikink pairs. United States: N. p., 1992. Web. doi:10.1103/PhysRevLett.68.1645.
Alford, M, Feldman, H, & Gleiser, M. Thermal nucleation of kink-antikink pairs. United States. https://doi.org/10.1103/PhysRevLett.68.1645
Alford, M, Feldman, H, and Gleiser, M. Mon . "Thermal nucleation of kink-antikink pairs". United States. https://doi.org/10.1103/PhysRevLett.68.1645.
@article{osti_7044569,
title = {Thermal nucleation of kink-antikink pairs},
author = {Alford, M and Feldman, H and Gleiser, M},
abstractNote = {We numerically study the thermal nucleaton of kink-antikink pairs in (1+1)-dimensional classical field theory coupled to a heat bath. We study the dependence of the kink lifetime and number density on temperature {ital and} on the coupling to the heat bath (viscosity). We qualitatively confirm Kramers's prediction of the viscosity dependence, and find a slight reduction in the effective kink mass compared with its zero-temperature value. We find no suppression of kink production beyond the Boltzmann factor, and we confirm a recent prediction of the renormalization of the barrier at high viscosity.},
doi = {10.1103/PhysRevLett.68.1645},
url = {https://www.osti.gov/biblio/7044569}, journal = {Physical Review Letters; (United States)},
issn = {0031-9007},
number = ,
volume = 68:11,
place = {United States},
year = {1992},
month = {3}
}