Localization of Bose-Einstein Condensate and Disappearance of Superfluidity of Strongly Correlated Bose Fluid in a Confined Potential

Journal Article · Thu Sep 07 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2354704· OSTI ID:20884833

Kobayashi, Michikazu; Tsubota, Makoto ^[1]

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1. Faculty of Science, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, Osaka 558-8585 (Japan)

We develop a model for a Bose fluid in a confined potential to study a new quantum phase caused by the localization of the Bose-Einstein condensate and the disappearance of superfluidity which was recently observed in liquid 4He in porous glass at high pressures. The critical pressure for the transition to this phase can be defined by our new analytical criterion, which assumes that the size of the localized Bose-Einstein condensate is comparable to the scale of confinement. The critical pressure is quantitatively consistent with observations without free parameters.

• OSTI ID: 20884833
• Journal Information: AIP Conference Proceedings, Vol. 850, Issue 1; Conference: LT24: 24. international conference on low temperature physics, Orlando, FL (United States), 10-17 Aug 2005; Other Information: DOI: 10.1063/1.2354704; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOSE-EINSTEIN CONDENSATION
CONFINEMENT
CRITICAL PRESSURE
GLASS
HELIUM 4
LIQUIDS
POROUS MATERIALS
POTENTIALS
SUPERFLUIDITY