Expansion of a quantum gas released from an optical lattice

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dc.creatorGerbier, F.
dc.creatorTrotzky, S.
dc.creatorFoelling, S.
dc.creatorSchnorrberger, U.
dc.creatorThompson, J. D.
dc.creatorWidera, A.
dc.creatorBloch, I.
dc.creatorPollet, L.
dc.creatorTroyer, M.
dc.creatorCapogrosso-Sansone, B.
dc.creatorProkof'ev, N. V.
dc.creatorSvistunov, B. V.
dc.date2008-08-15
dc.date.accessioned2026-07-07T10:09:21Z
dc.date.available2026-07-07T10:09:21Z
dc.descriptionWe analyze the interference pattern produced by ultracold atoms released from an optical lattice. Such interference patterns are commonly interpreted as the momentum distributions of the trapped quantum gas. We show that for finite time-of-flights the resulting density distribution can, however, be significantly altered, similar to a near-field diffraction regime in optics. We illustrate our findings with a simple model and realistic quantum Monte Carlo simulations for bosonic atoms, and compare the latter to experiments.
dc.description5 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0808.2212
dc.identifierhttp://arxiv.org/abs/0808.2212
dc.identifierPhys. Rev. Lett. 101, 155303 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.155303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/171293
dc.subjectOther Condensed Matter
dc.titleExpansion of a quantum gas released from an optical lattice
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