The scalable implementation of quantum walks using classical light

Sandeep K. Goyal; F. S. Roux; Andrew Forbes; Thomas Konrad

doi:10.1117/12.2039622

25 February 2014 The scalable implementation of quantum walks using classical light

Sandeep K. Goyal, F. S. Roux, Andrew Forbes, Thomas Konrad

Proceedings Volume 8999, Complex Light and Optical Forces VIII; 89991A (2014) https://doi.org/10.1117/12.2039622
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

A quantum walk is the quantum analog of the classical random walks. Despite their simple structure they form a universal platform to implement any algorithm of quantum computation. However, it is very hard to realize quantum walks with a sufficient number of iterations in quantum systems due to their sensitivity to environmental influences and subsequent loss of coherence. Here we present a scalable implementation scheme for one-dimensional quantum walks for arbitrary number of steps using the orbital angular momentum modes of classical light beams. Furthermore, we show that using the same setup with a minor adjustment we can also realize electric quantum walks.

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Sandeep K. Goyal, F. S. Roux, Andrew Forbes, and Thomas Konrad "The scalable implementation of quantum walks using classical light", Proc. SPIE 8999, Complex Light and Optical Forces VIII, 89991A (25 February 2014); https://doi.org/10.1117/12.2039622

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