Document Detail


Superfluidity with disorder in a thin film of quantum gas.
MedLine Citation:
PMID:  23521243     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We investigate the properties of a strongly interacting superfluid gas of (6)Li(2) Feshbach molecules forming a thin film confined in a quasi-two-dimensional channel with a tunable random potential, creating a microscopic disorder. We measure the atomic current, extract the resistance of the film in a two-terminal configuration, and identify a superfluid state at low disorder strength, which evolves into a normal poorly conducting state for strong disorder. The transition takes place when the chemical potential reaches the percolation threshold of the disorder. The evolution of the conduction properties contrasts with the smooth behavior of the density and compressibility across the transition, measured in situ at equilibrium. These features suggest the emergence of a glasslike phase at strong disorder.
Authors:
Sebastian Krinner; David Stadler; Jakob Meineke; Jean-Philippe Brantut; Tilman Esslinger
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Publication Detail:
Type:  Journal Article     Date:  2013-03-04
Journal Detail:
Title:  Physical review letters     Volume:  110     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-03-25     Completed Date:  2013-05-24     Revised Date:  2014-05-14    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  100601     Citation Subset:  -    
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Erratum In:
Phys Rev Lett. 2014 Mar 21;112(11):119901

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