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arXiv:0805.1025 [cond-mat.stat-mech]AbstractReferencesReviewsResources

Winding up by a quench: Insulator to superfluid phase transition in a ring of BECs

J. Dziarmaga, J. Meisner, W. H. Zurek

Published 2008-05-07, updated 2008-08-22Version 2

We study phase transition from the Mott insulator to superfluid in a periodic optical lattice. Kibble-Zurek mechanism predicts buildup of winding number through random walk of BEC phases, with the step size scaling as a the third root of transition rate. We confirm this and demonstrate that this scaling accounts for the net winding number after the transition.

Comments: minor typo corrections; version to appear in Phys.Rev.Lett
Journal: Phys. Rev. Lett. 101, 115701 (2008)
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