Superfluid and Dissipative Dynamics of a Bose-Einstein Condensate in a Periodic Optical Potential

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dc.creatorBurger, S.
dc.creatorCataliotti, F. S.
dc.creatorFort, C.
dc.creatorMinardi, F.
dc.creatorInguscio, M.
dc.creatorChiofalo, M. L.
dc.creatorTosi, M. P.
dc.date2001-02-05
dc.date.accessioned2026-07-07T13:18:40Z
dc.date.available2026-07-07T13:18:40Z
dc.descriptionWe create Bose-Einstein condensates of 87-rubidium in a static magnetic trap with a superimposed blue-detuned 1D optical lattice. By displacing the magnetic trap center we are able to control the condensate evolution. We observe a change in the frequency of the center-of-mass oscillation in the harmonic trapping potential, in analogy with an increase in effective mass. For fluid velocities greater than a local speed of sound, we observe the onset of dissipative processes up to full removal of the superfluid component. A parallel simulation study visualizes the dynamics of the BEC and accounts for the main features of the observed behavior.
dc.description4 pages, including figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0102076
dc.identifierhttp://arxiv.org/abs/cond-mat/0102076
dc.identifierPhys. Rev. Lett. 86, 4447 (2001).
dc.identifierdoi:10.1103/PhysRevLett.86.4447
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/231498
dc.subjectCondensed Matter
dc.titleSuperfluid and Dissipative Dynamics of a Bose-Einstein Condensate in a Periodic Optical Potential
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