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Proceedings Paper

Quantum entanglement swapping with spontaneous parametric down conversion
Author(s): Xiang-bin Wang; B. S. Shi; A. Tomita; Keiji Matsumoto
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Paper 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.

Paper Details

Date Published: 4 August 2003
PDF: 9 pages
Proc. SPIE 5105, Quantum Information and Computation, (4 August 2003); doi: 10.1117/12.484826
Show Author Affiliations
Xiang-bin Wang, ERATO-Japan Science and Technology Corp. (Japan)
B. S. Shi, ERATO-Japan Science and Technology Corp. (Japan)
A. Tomita, ERATO-Japan Science and Technology Corp. (Japan)
Keiji Matsumoto, ERATO-Japan Science and Technology Corp. (Japan)

Published in SPIE Proceedings Vol. 5105:
Quantum Information and Computation
Eric Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)

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