Winding Up of the Wave-Function Phase by an Insulator-to-Superfluid Transition in a Ring of Coupled Bose-Einstein Condensates

Journal Article · Fri Sep 12 00:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.101.115701· OSTI ID:21179712

Dziarmaga, Jacek; Meisner, Jakub ^[1]; Zurek, Wojciech H ^[2]

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1. Institute of Physics and Centre for Complex Systems Research, Jagiellonian University, Reymonta 4, 30-059 Krakow (Poland)
2. Theory Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

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 third root of transition rate. We confirm this and demonstrate that this scaling accounts for the net winding number after the transition.

• OSTI ID: 21179712
• Journal Information: Physical Review Letters, Vol. 101, Issue 11; Other Information: DOI: 10.1103/PhysRevLett.101.115701; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN CONDENSATION
GRAPH THEORY
PERIODICITY
PHASE TRANSFORMATIONS
RANDOMNESS
SUPERFLUIDITY
WAVE FUNCTIONS