Optimal transport of ultracold atoms in the non-adiabatic regime

We report the transport of ultracold atoms with optical tweezers in the non-adiabatic regime, i.e. on a time scale on the order of the oscillation period. We have found a set of discrete transport durations for which the transport is not accompanied by any excitation of the centre of mass of the clo...

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Bibliographic Details
Published inarXiv.org
Main Authors Couvert, A, Kawalec, T, Reinaudi, G, Guery-Odelin, David
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 15.09.2008
Subjects
Adiabatic flow
Dipoles
Fourier transforms
Optimization
Physics - Other Condensed Matter
Trapped particles
Velocity distribution
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Summary:We report the transport of ultracold atoms with optical tweezers in the non-adiabatic regime, i.e. on a time scale on the order of the oscillation period. We have found a set of discrete transport durations for which the transport is not accompanied by any excitation of the centre of mass of the cloud. We show that the residual amplitude of oscillation of the dipole mode is given by the Fourier transform of the velocity profile imposed to the trap for the transport. This formalism leads to a simple interpretation of our data and simple methods for optimizing trapped particles displacement in the non-adiabatic regime.
ISSN:2331-8422
DOI:10.48550/arxiv.0708.4197