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arXiv · 0805.0404

Controlled generation of coherent matter-currents using a periodic driving field

C. E. Creffield·F. Sols
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Abstract

We study the effect of a strong, oscillating driving field on the dynamics of ultracold bosons 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.

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C. E. Creffield, F. Sols. 2008-05-04. Controlled generation of coherent matter-currents using a periodic driving field. https://doi.org/10.1103/physrevlett.100.250402

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