Improved Linear Optic Bell-State Measurement Using Ancillary Photons

W. P. Grice

doi:10.1364/FIO.2009.JTuB3

Frontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest
OSA Technical Digest (CD) (Optica Publishing Group, 2009),
paper JTuB3
•https://doi.org/10.1364/FIO.2009.JTuB3

Improved Linear Optic Bell-State Measurement Using Ancillary Photons

W. P. Grice

Frontiers in Optics 2009

San Jose, California United States
11–15 October 2009
ISBN: 978-1-55752-878-0

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Entanglement Generation and Measurement II (JTuB)

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W. P. Grice, "Improved Linear Optic Bell-State Measurement Using Ancillary Photons," in Frontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest, OSA Technical Digest (CD) (Optica Publishing Group, 2009), paper JTuB3.

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Abstract

It is not possible to construct a linear optic device that unambiguously discriminates all four Bell states. However, the Bell-state measurement efficiency can be made arbitrarily close to unity by introducing additional entangled photons.

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