Effect of quantum fluctuations on the dipolar motion of Bose-Einstein condensates in optical lattices

Simple item page
dc.creatorPolkovnikov, Anatoli
dc.creatorWang, Daw-Wei
dc.date2003-11-20
dc.date2004-07-30
dc.date.accessioned2026-07-07T02:54:52Z
dc.date.available2026-07-07T02:54:52Z
dc.descriptionWe revisit dipolar motion of condensate atoms in one-dimensional optical lattices and harmonic magnetic traps including quantum fluctuations within the truncated Wigner approximation. In the strong tunneling limit we reproduce the meanfield results with a sharp dynamical transition at the critical displacement. When the tunneling is reduced, on the contrary, strong quantum fluctuations lead to finite damping of condensate oscillations even at infinitesimal displacement. We argue that there is a smooth crossover between the chaotic classical transition at finite displacement and the superfluid-to-insulator phase transition at zero displacement. We further analyze the time dependence of the density fluctuations and of the coherence of the condensate and find several nontrivial dynamical effects, which can be observed in the present experimental conditions.
dc.description4 pages, 5 figures, final version to appear in PRL
dc.identifierhttps://arxiv.org/abs/cond-mat/0311492
dc.identifierhttp://arxiv.org/abs/cond-mat/0311492
dc.identifierPhys. Rev. Lett. 93, 070401 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.070401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22736
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleEffect of quantum fluctuations on the dipolar motion of Bose-Einstein condensates in optical lattices
dc.typetext

Files

Collections

arXiv