Single-particle entanglement

Journal Article · Thu Dec 15 00:00:00 EST 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.72.0· OSTI ID:20786388

Enk, S J. van ^[1]

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1. Bell Labs, Lucent Technologies, 600-700 Mountain Ave., Murray Hill, New Jersey 07974 (United States)

I give a simple argument that demonstrates that the state vertical bar 0> vertical bar 1>+ vertical bar 1> vertical bar 0>, with |0> denoting a state with 0 particles (or photons) and vertical bar 1> a one-particle state, is entangled in spite of recent claims to the contrary. I also discuss viewpoints on the old controversy about whether the above state can be said to display single-particle or single-photon nonlocality.

• OSTI ID: 20786388
• Journal Information: Physical Review. A, Vol. 72, Issue 6; Other Information: DOI: 10.1103/PhysRevA.72.064306; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ENERGY LEVELS
LOCALITY
PHOTONS
QUANTUM ENTANGLEMENT
QUANTUM MECHANICS