Soliton creation during a Bose-Einstein condensation

We use the stochastic Gross-Pitaevskii equation to study dynamics of Bose-Einstein condensation. We show that cooling into a Bose-Einstein condensate (BEC) can create solitons with density given by the cooling rate and by the critical exponents of the transition. Thus, counting solitons left in its...

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Bibliographic Details
Published in:Physical review letters 2010-04, Vol.104 (16), p.160404-160404, Article 160404
Main Authors: Damski, Bogdan, Zurek, Wojciech H
Format: Article
Language:English
Subjects:
BOSE-EINSTEIN CONDENSATION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COOLING
CORRELATION FUNCTIONS
DENSITY
FUNCTIONS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
QUASI PARTICLES
SOLITONS
STOCHASTIC PROCESSES
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Summary:We use the stochastic Gross-Pitaevskii equation to study dynamics of Bose-Einstein condensation. We show that cooling into a Bose-Einstein condensate (BEC) can create solitons with density given by the cooling rate and by the critical exponents of the transition. Thus, counting solitons left in its wake should allow one to determine the critical exponents z and nu for a BEC phase transition. The same information can be extracted from two-point correlation functions.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.104.160404