title: Quenched Kosterlitz-Thouless superfluid transitions.
abstract: Rapidly quenched Kosterlitz-Thouless (KT) superfluid transitions are studied by solving the Fokker-Planck equation for the vortex-pair dynamics in conjunction with the KT recursion relations. Power-law decays of the vortex density at long times are found, and the results are in agreement with a scaling proposal made by Minnhagen and co-workers for the dynamical critical exponent. The superfluid density is strongly depressed after a quench, with the subsequent recovery being logarithmically slow for starting temperatures near T(KT). No evidence is found of vortices being "created" in a rapid quench; there is only decay of the existing thermal vortex pairs.
authors: Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA.
authors: H C
authors: HC
authors: Chu
authors: G A
authors: GA
authors: Williams