| Damping of superfluid flow by a thermal cloud. | |
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MedLine Citation:
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PMID: 20366319 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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One of the principal signatures of superfluidity is the frictionless flow of a superfluid through another substance. Here, we study the flow of a Bose-Einstein condensate through a thermal cloud and study its damping for different harmonic confinements and temperatures. The damping rates close to the collisionless regime are found to be in good agreement with Landau damping and become smaller for more homogeneous systems. In the hydrodynamic regime, we observe additional damping due to collisions, and we discuss the implications of these findings for superfluidity in this system. |
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Authors:
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R Meppelink; S B Koller; J M Vogels; H T C Stoof; P van der Straten |
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Publication Detail:
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Type: Journal Article Date: 2009-12-23 |
Journal Detail:
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Title: Physical review letters Volume: 103 ISSN: 1079-7114 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2009 Dec |
Date Detail:
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Created Date: 2010-04-06 Completed Date: 2010-06-28 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 265301 Citation Subset: - |
Affiliation:
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Atom Optics and Ultrafast Dynamics, Utrecht University, Post Office Box 80,000, 3508 TA Utrecht, The Netherlands. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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