Creffield, Charles2023-06-202023-06-202007-08-140031-900710.1103/physrevlett.99.110501https://hdl.handle.net/20.500.14352/51578©2007 The American Physical Society. This research was supported by the EPSRC. The author acknowledges the hospitality of the University of Edinburgh where this work was completed, and thanks Sougato Bose for stimulating conversations.We propose a scheme for producing directed motion in a lattice system by applying a periodic driving potential. By controlling the dynamics by means of the effect known as coherent destruction of tunneling, we demonstrate a novel ratchetlike effect that enables particles to be coherently manipulated and steered without requiring local control. Entanglement between particles can also be controllably generated, which points to the attractive possibility of using this technique for quantum information processing.engjournal articlehttp://dx.doi.org/10.1103/physrevlett.99.110501http://journals.aps.orgopen access538.9Optical latticesAtomsFísica de materialesFísica del estado sólido2211 Física del Estado Sólido