Creation of maximally entangled photon-number states using optical fiber multiports

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Author(s)
Pryde, GJ
White, AG
Griffith University Author(s)
Year published
2003
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Show full item recordAbstract
We theoretically demonstrate a method for producing the maximally path-entangled state (1/sqrt[2])(|N,0>+exp[iNf]|0,N>) using intensity-symmetric multiport beam splitters, single photon inputs, and either photon-counting postselection or conditional measurement. The use of postselection enables successful implementation with non-unit efficiency detectors. We also demonstrate how to make the same state more conveniently by replacing one of the single photon inputs by a coherent state.We theoretically demonstrate a method for producing the maximally path-entangled state (1/sqrt[2])(|N,0>+exp[iNf]|0,N>) using intensity-symmetric multiport beam splitters, single photon inputs, and either photon-counting postselection or conditional measurement. The use of postselection enables successful implementation with non-unit efficiency detectors. We also demonstrate how to make the same state more conveniently by replacing one of the single photon inputs by a coherent state.
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Journal Title
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
68
Issue
5
Publisher URI
Copyright Statement
© 2003 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal link for access to the definitive, published version.
Subject
Mathematical sciences
Physical sciences
Chemical sciences