Abstract
In a real system the heating is nonuniform, and a second-order phase transition to a broken-symmetry phase occurs by propagation of a temperature front. Two parameters, the cooling rate τ Q and the transition front velocity ν T determine the nucleation of topological defects. Depending on the relation of these parameters, two regimes are found: in the regime of fast propagation defects are created according to the Zurek scenario for the homogeneous case, while in the slow-propagation regime vortex formation is suppressed.
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Pis’ma Zh. Éksp. Teor. Fiz. 65, No. 1, 96–101 (10 January 1997)
Published in English in the original Russian journal. Edited by Steve Torstveit.