Coherent control of atomic transport in spinor optical lattices

Details Coherent control of atomic transport in spinor optical lattices Coherent control of atomic transport in spinor optical lattices

2009-05-07

arxiv.org/abs/0905.1094v1

Physics

Quantum Physics

20 pages, 3 figures

Scientific paper

Coherent transport of atoms trapped in an optical lattice can be controlled by microwave-induced spin flips that correlate with site-to-site hopping. We study the controllability of homogeneous one-dimensional systems of noninteracting atoms in the absence of site addressability. Given these restrictions, we construct a deterministic protocol to map an initially localized Wannier state to a wave packet that that is coherently distributed over n sites. This is extended to analytic solutions for arbitrary unitary maps given homogenous systems and in the presence of time-dependent uniform forces. Such control is important for applications in quantum information processing such as quantum computing and quantum simulations of condensed matter phenomena.

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