Open AccessCounterfactual entanglement distribution without transmitting any particles
Author(s) -
Qi Guo,
Liu-Yong Cheng,
Li Chen,
Hong-Fu Wang,
Shou Zhang
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.008970
Subject(s) - quantum entanglement , counterfactual thinking , physics , quantum key distribution , separable space , photonics , distribution (mathematics) , optics , quantum nonlocality , quantum mechanics , quantum , mathematics , mathematical analysis , philosophy , epistemology
To date, all schemes for entanglement distribution needed to send entangled particles or a separable mediating particle among distant participants. Here, we propose a counterfactual protocol for entanglement distribution against the traditional forms, that is, two distant particles can be entangled with no physical particles travel between the two remote participants. We also present an alternative scheme for realizing the counterfactual photonic entangled state distribution using Michelson-type interferometer and self-assembled GaAs/InAs quantum dot embedded in a optical microcavity. The numerical analysis about the effect of experimental imperfections on the performance of the scheme shows that the entanglement distribution may be implementable with high fidelity.