Phys. Rev. A 69, 012310 (2004) [7 pages]Simulation of quantum random walks using the interference of a classical fieldReceived 10 May 2003; published 16 January 2004 We suggest a theoretical scheme for the simulation of quantum random walks on a line using beam splitters, phase shifters, and photodetectors. Our model enables us to simulate a quantum random walk using of the wave nature of classical light fields. Furthermore, the proposed setup allows the analysis of the effects of decoherence. The transition from a pure mean-photon-number distribution to a classical one is studied varying the decoherence parameters. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.69.012310
DOI:
10.1103/PhysRevA.69.012310
PACS:
03.67.Lx, 42.25.Hz
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