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 in:Europhysics letters 2008-07, Vol.83 (1), p.13001-13001 (5)
Main Authors: Couvert, A, Kawalec, T, Reinaudi, G, Guéry-Odelin, D
Format: Article
Language:English
Subjects:
37.10.Gh
37.10.Vz
37.90.+j
Condensed Matter
Other
Physics
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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 after the transport. 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:0295-5075
1286-4854
DOI:10.1209/0295-5075/83/13001