Bell's measure and implementing quantum Fourier transform with orbital angular momentum of classical light

Xinbing Song; Yifan Sun; Pengyun Li; Hongwei Qin; Xiangdong Zhang

doi:10.1038/srep14113

Bell's measure and implementing quantum Fourier transform with orbital angular momentum of classical light

Sci Rep. 2015 Sep 15:5:14113. doi: 10.1038/srep14113.

Authors

Xinbing Song¹, Yifan Sun^{1

2}, Pengyun Li¹, Hongwei Qin¹, Xiangdong Zhang¹

Affiliations

¹ School of Physics, Beijing Institute of Technology and Beijing Key Laboratory of Fractional Signals and Systems, 100081, Beijing, China.
² Department of Physics, Beijing Normal University, Beijing 100875, China.

Abstract

We perform Bell's measurement for the non-separable correlation between polarization and orbital angular momentum from the same classical vortex beam. The violation of Bell's inequality for such a non-separable classical correlation has been demonstrated experimentally. Based on the classical vortex beam and non-quantum entanglement between the polarization and the orbital angular momentum, the Hadamard gates and conditional phase gates have been designed. Furthermore, a quantum Fourier transform has been implemented experimentally.

Publication types

Research Support, Non-U.S. Gov't