A single-particle entangled state can be generated by illuminating a beam splitter with a single photon. Quantum teleportation utilizing such a single-particle entangled state can be successfully achieved with a simple setup consisting only of linear optical devices such as beam splitters and phase shifters. Application of the locality assumption to a single-particle entangled state leads to Bell's inequality, a violation of which signifies the nonlocal nature of a single particle.

arXiv:quant-ph/0007106Physical Review ADec 11, 2000138 citations

Single-photon quantum nonlocality: Violation of the Clauser-Horne-Shimony-Holt inequality using feasible measurement setups

Su‐Yong Lee, Jiyong Park, Jaewan Kim +1 more

arXiv:1612.02920Physical Review AJan 26, 201711 citations

Chinese Physics Letters

Manipulation of Quantum Nonlocality of the Single-Photon Entangled State via Beam Splitter

Qingping Zhou, Mao-Fa Fang, Xiaojuan Liu

Published Dec 23, 2004• 5 citations

Publisher

Abstract

DOI: 10.1088/0256-307x/22/1/004

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2.71\pm 0.09

and

2.23\pm 0.07

, depending on the joint measurements implemented. This offers a new perspective on single-photon nonlocality and a more accessible experimental route, potentially applicable to general mode-entangled states in diverse platforms.

\mathcal{P} > 0.7

. Our procedure using single beam splitter and two detector module for un-heralded single photon source allows a simple way to test for purity of any single photon source and to study quantum correlations on systems driven by dynamics where single particle entanglement with position space is prominent.