Optical implementation of one-dimensional quantum random walks using orbital angular momentum of a single photon
Xu‐Bo Zou, Yuli Dong, Guang‐Can Guo · New Journal of Physics · 2006
Photons can carry orbital angular momentum (OAM), which offers a practical realization of a high-dimensional quantum information carrier. In this paper, by employing OAM of a single photon, we propose an experimental scheme to implement one-dimensional two-state quantum random walks on an infinite line. Furthermore, we show that the scheme can be used to implement one-dimensional three-state quantum random walks on an infinite line.