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Controlled generation of coherent matter currents using a periodic driving field

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Creffield, Charles E. and Sols Lucía, Fernando (2008) Controlled generation of coherent matter currents using a periodic driving field. Physical review letters, 100 (25). ISSN 0031-9007

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Official URL: http://dx.doi.org/10.1103/PhysRevLett.100.250402


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Abstract

We study the effect of a strong, oscillating driving field on the dynamics of ultracold boson held in an optical lattice. Modeling the system as a Bose-Hubbard model, we show how the driving field can be used to produce and maintain a coherent atomic current by controlling the phase of the intersite tunneling processes. We investigate both the stroboscopic and time- averaged behavior using Floquet theory, and demonstrate that this procedure provides a stable and precise method of controlling coherent quantum systems.


Item Type:Article
Additional Information:

© 2008 The American Physical Society.
We thank Martin Holthaus for stimulating discussions. This work was funded by the MEC (Spain) through Grant Nos. FIS2004-05120 and FIS2007-65723. C. E. C. was supported by a Ramón y Cajal Fellowship.

Uncontrolled Keywords:Optical lattices; Atoms
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:33121
Deposited On:14 Sep 2015 16:37
Last Modified:13 Feb 2018 19:14

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