Study of kink-antikink pair production at finite temperature by means of the Langevin equation
- 20 November 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 63 (21) , 2337-2340
- https://doi.org/10.1103/physrevlett.63.2337
Abstract
Creation of kink-antikink pairs within the (1+1) dimensional real scalar field theory at finite temperature is considered as a result of the real-time evolution of a Hamiltonian system which interacts with a thermal bath. The relevant Langevin equation is solved numerically on the lattice, and both the density of kinks and the pair-creation time are obtained as functions of the temperature. We find that the effective kink mass is reduced at high temperatures. This observation may be important for the evaluation of the cosmological production of monopoles.Keywords
This publication has 9 references indexed in Scilit:
- Can the observed baryon asymmetry be produced at the electroweak phase transition?Physical Review Letters, 1989
- Sphaleron transitions at finite temperatures. numerical study in (1+1) dimensionsPhysics Letters B, 1989
- Sphalerons on a circlePhysics Letters B, 1988
- Nonconservation of baryon number under extremal conditionsUspekhi Fizicheskih Nauk, 1988
- ANOMALOUS FERMION NUMBER NON-CONSERVATION AT HIGH TEMPERATURES: TWO DIMENSIONAL EXAMPLEModern Physics Letters A, 1987
- ELECTROWEAK PRODUCTION OF BARYON ASYMMETRY AND UPPER BOUNDS ON THE HIGGS AND TOP MASSESModern Physics Letters A, 1987
- Dynamical critical exponent of the 3D Ising modelJournal of Applied Physics, 1987
- Quantum-Statistical MetastabilityPhysical Review Letters, 1981
- Symmetry Breaking through Bell-Jackiw AnomaliesPhysical Review Letters, 1976