Many-body quantum ratchet in a Bose-Einstein condensate

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dc.creatorPoletti, Dario
dc.creatorBenenti, Giuliano
dc.creatorCasati, Giulio
dc.creatorLi, Baowen
dc.date2006-09-21
dc.date.accessioned2026-07-07T08:27:48Z
dc.date.available2026-07-07T08:27:48Z
dc.descriptionWe study the dynamics of a dilute Bose-Einstein condensate confined in a toroidal trap and exposed to a pair of periodically flashed optical lattices. We first prove that in the noninteracting case this system can present a quantum symmetry which forbids the ratchet effect classically expected. We then show how many-body atom-atom interactions, treated within the mean-field approximation, can break this quantum symmetry, thus generating directed transport.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0609535
dc.identifierhttp://arxiv.org/abs/cond-mat/0609535
dc.identifierPhys. Rev. A 76, 023421 (2007)
dc.identifierdoi:10.1103/PhysRevA.76.023421
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/137397
dc.subjectOther Condensed Matter
dc.subjectQuantum Physics
dc.titleMany-body quantum ratchet in a Bose-Einstein condensate
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