We examine the dynamics of ultracold atoms held in optical lattice potentials. By controlling the switching of a periodic driving potential we show how a phase-induced renormalization of the intersite tunneling can be used to produce directed motion and control wavepacket spreading. We further show how this generation of a synthetic gauge potential can be used to split and recombine wavepackets, providing an attractive route to implementing quantum computing tasks.
@article{arxiv.1103.2888,
title = {Directed transport in driven optical lattices by phase generation},
author = {C. E. Creffield and F. Sols},
journal= {arXiv preprint arXiv:1103.2888},
year = {2011}
}
Comments
4.1 pages, 4 eps figures. Minor changes, to be published in Phys. Rev. A