Quantum entanglement swapping with spontaneous parametric down conversion

Xiang-bin Wang; B. S. Shi; A. Tomita; Keiji Matsumoto

doi:10.1117/12.484826

4 August 2003 Quantum entanglement swapping with spontaneous parametric down conversion

Xiang-bin Wang, B. S. Shi, A. Tomita, Keiji Matsumoto

Proceedings Volume 5105, Quantum Information and Computation; (2003) https://doi.org/10.1117/12.484826
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

By quantum mechanics principle, two remote parties that have never interacted each other can be entangled through entanglement swapping operation done by a third party. Currently existing entanglement swapping experiments are done probabilistically by post-selection, i.e., once a successful swapping is verified, the resultant entanglement is destructed. We propose a simple non-post-selection scheme to probabilistically make the high quality quantum entanglement swapping with the spontaneous parametric down conversion(SPDC) process. After the swapping, two spatially separated parties who have never interacted each other are entangled through a single photon entangled state. Our scheme only requires the normal photon detectors which can distinguish the vacuum and non-vacuum Fock states.

Citation Download Citation

Xiang-bin Wang, B. S. Shi, A. Tomita, and Keiji Matsumoto "Quantum entanglement swapping with spontaneous parametric down conversion", Proc. SPIE 5105, Quantum Information and Computation, (4 August 2003); https://doi.org/10.1117/12.484826

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