Quantum walks in optical lattices
Wolfgang Dür, Robert Raussendorf, Viv M. Kendon, Hans J. Briegel · Physical Review A · 2002
We propose an experimental realization of discrete quantum walks using neutral atoms trapped in optical lattices. The quantum walk is taking place in position space and experimental implementation with present-day technology---even using existing setups---seems feasible. We analyze the influence of possible imperfections in the experiment and investigate the transition from a quantum walk to the classical random walk for increasing errors and decoherence.