Kink-Antikink Pair Production in the Presence of a Stochastic and Oscillating Background

Details Kink-Antikink Pair Production in the Presence of a Stochastic and Oscillating Background Kink-Antikink Pair Production in the Presence of a Stochastic and Oscillating Background

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003fuin.conf..342s&link_type=abstract

FUNDAMENTAL INTERACTIONS. Proceedings of the Seventeenth Lake Louise Winter Institute. Held 17-23 February 2002 in Lake Louise,

Computer Science

Scientific paper

The production of kink-antikink pairs in a (1 + 1) dimensional ϕ4 field theory subject to white noise and periodic driving is investigated numerically. The twin effects of noise and periodic driving leads to an enhancement in the kink density, when compared to the thermal equilibrium values. Moreover, kink-antikink pair production is observed even though the system remains in the broken symmetry phase for all times. The dependence of the kink-density on the temperature of the heat bath, the amplitude of the oscillating background and value of the dissipation coefficient is also investigated.

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