Characterisation of a three-dimensional Brownian motor in optical lattices

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dc.creatorSjolund, P.
dc.creatorPetra, S. J. H.
dc.creatorDion, C. M.
dc.creatorHagman, H.
dc.creatorJonsell, S.
dc.creatorKastberg, A.
dc.date2007-04-30
dc.date.accessioned2026-07-07T08:29:46Z
dc.date.available2026-07-07T08:29:46Z
dc.descriptionWe present here a detailed study of the behaviour of a three dimensional Brownian motor based on cold atoms in a double optical lattice [P. Sjolund et al., Phys. Rev. Lett. 96, 190602 (2006)]. This includes both experiments and numerical simulations of a Brownian particle. The potentials used are spatially and temporally symmetric, but combined spatiotemporal symmetry is broken by phase shifts and asymmetric transfer rates between potentials. The diffusion of atoms in the optical lattices is rectified and controlled both in direction and speed along three dimensions. We explore a large range of experimental parameters, where irradiances and detunings of the optical lattice lights are varied within the dissipative regime. Induced drift velocities in the order of one atomic recoil velocity have been achieved.
dc.description8 pages, 14 figures
dc.identifierhttps://arxiv.org/abs/0704.3955
dc.identifierhttp://arxiv.org/abs/0704.3955
dc.identifierEur. Phys. J. D 44, 381 (2007)
dc.identifierdoi:10.1140/epjd/e2007-00233-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/138056
dc.subjectAtomic Physics
dc.titleCharacterisation of a three-dimensional Brownian motor in optical lattices
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