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dc.creatorFalco, G. M.
dc.creatorNattermann, T.
dc.creatorPokrovsky, Valery L.
dc.date.accessioned2012-09-19T20:05:45Z
dc.date.available2012-09-19T20:05:45Z
dc.date.issued2009
dc.identifier.citationG. M. Falco, T. Nattermann and Valery L. Pokrovsky. Phys.Rev.B 80 104515 2009."Copyright (2009) by the American Physical Society."en
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.80.104515
dc.identifier.urihttps://hdl.handle.net/1969.1/146829
dc.descriptionJournals published by the American Physical Society can be found at http://journals.aps.org/en
dc.description.abstractThe localization-disorder paradigm is analyzed for a specific system of weakly repulsive Bose gas at zero temperature placed into a quenched random potential. We show that at low average density or weak enough interaction the particles fill deep potential wells of the random potential whose radius and depth depend on the characteristics of the random potential and the interacting gas. The localized state is the random singlet with no long-range phase correlation. At a critical density the quantum phase transition to the coherent superfluid state proceeds. We calculate the critical density in terms of the geometrical characteristics of the noise and the gas. In a finite system the ground state becomes nonergodic at very low density. For atoms in traps four different regimes are found; only one of it is superfluid. The theory is extended to lower (one and two) dimensions. Its quantitative predictions can be checked in experiments with ultracold atomic gases and other Bose systems.en
dc.language.isoen
dc.publisherAmerican Physical Society
dc.rightsThis work is archived in the Texas A&M Digital Repository with the express permission of the rights holder (commonly but not always the publisher). A copy of the permission document is on file with the Texas A&M University Libraries.en
dc.subjectSUPERFLUID-INSULATOR TRANSITIONen
dc.subjectDIMENSIONAL QUANTUM FLUIDSen
dc.subjectEINSTEINen
dc.subjectCONDENSATIONen
dc.subjectANDERSON LOCALIZATIONen
dc.subjectCRITICAL-BEHAVIORen
dc.subjectLIFSHITZ TAILen
dc.subjectDIRTY BOSONSen
dc.subjectRANDOM-FIELDen
dc.subjectDISORDERen
dc.subjectDENSITYen
dc.subjectPhysicsen
dc.titleWeakly interacting Bose gas in a random environmenten
dc.typeArticleen
local.departmentPhysics and Astronomyen


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