Quantum entanglement swapping with spontaneous parametric down-conversion

Journal Article · Thu Jan 01 04:00:00 EST 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.69.014303· OSTI ID:20640656

Xiangbin, Wang; Shi, B S; Tomita, A; Matsumoto, K ^[1]

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1. Imai Quantum Computation and Information Project, ERATO, Japan Science and Technology Corpporation, Daini Hongo White Building 201, 5-28-3, Hongo, Bunkyo, Tokyo 113-0033 (Japan)

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 postselection, i.e., once a successful swapping is verified, the resultant entanglement is destructed. We propose a simple nonpostselection scheme to demonstrate the high-quality quantum entanglement swapping with the spontaneous parametric down-conversion process. Our scheme only requires the normal photon detectors which only distinguish the vacuum and nonvacuum Fock states.

• OSTI ID: 20640656
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 69; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CONVERSION
CORRELATIONS
ENERGY LEVELS
OPERATION
OPTICS
PHOTONS
QUANTUM MECHANICS