Creffield, CharlesSols Lucía, Fernando2023-06-202023-06-202008-06-250031-900710.1103/PhysRevLett.100.250402https://hdl.handle.net/20.500.14352/51561© 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.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.engjournal articlehttp://dx.doi.org/10.1103/PhysRevLett.100.250402http://journals.aps.orgopen access538.9Optical latticesAtomsFísica de materialesFísica del estado sólido2211 Física del Estado Sólido