%0 Journal Article
%A Creffield, Charles E.
%A Sols Lucía, Fernando
%T Controlled generation of coherent matter currents using a periodic driving field
%D 2008
%@ 0031-9007
%U https://hdl.handle.net/20.500.14352/51561
%X 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.
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