Photon-assisted tunneling in optical lattices: Ballistic transport of interacting boson pairs

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dc.creatorWeiss, Christoph
dc.creatorBreuer, Heinz-Peter
dc.date2008-12-03
dc.date2009-01-12
dc.date.accessioned2026-07-07T12:38:07Z
dc.date.available2026-07-07T12:38:07Z
dc.descriptionIn a recent experiment [PRL 100, 040404 (2008)] an analog of photon-assisted tunneling has been observed for a Bose-Einstein condensate in an optical lattice subject to a constant force plus a sinusoidal shaking. Contrary to previous theoretical predictions, the width of the condensate was measured to be proportional to the square of the effective tunneling matrix element, rather than a linear dependence. For a simple model of two interacting bosons in a one-dimensional optical lattice, both analytical and numerical calculations indicate that such a transition from a linear to a quadratic dependence can be interpreted through the ballistic transport and the corresponding exact dispersion relation of bound boson pairs.
dc.description7 pages, 3 figures, minor changes
dc.identifierhttps://arxiv.org/abs/0812.0684
dc.identifierhttp://arxiv.org/abs/0812.0684
dc.identifierPhysical Review A: Atomic, Molecular and Optical Physics 79, 2 (2009) 023608
dc.identifierdoi:10.1103/PhysRevA.79.023608
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/218641
dc.subjectOther Condensed Matter
dc.titlePhoton-assisted tunneling in optical lattices: Ballistic transport of interacting boson pairs
dc.typetext

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