Quantum Random Walks in Free Space
Toni Eichelkraut, Christian Vetter, Armando Pérez-Leija, Demetrios N. Christodoulides, Alexander Szameit · 2014
We show that two-dimensional continuous time coherent random walks are possible in free space by properly tailoring the associated initial wave functions. Theoretical predictions along with classical experiments demonstrate the feasibility of our scheme.