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Loophole-free four photon EPR experiment

Authors
Journal
Physics Letters A
0375-9601
Publisher
Elsevier
Publication Date
Volume
224
Identifiers
DOI: 10.1016/s0375-9601(96)00825-0
Keywords
  • General Physics
Disciplines
  • Physics

Abstract

Abstract A loophole-free four photon EPR experiment requiring only 67% detection efficiency which prepares independent photons in a nonmaximal singlet-like spin state by means of an asymmetrical beam splitter is proposed. The experiment does not suffer from the usual poor net detection efficiency and can therefore serve to close the low detection efficiency, the no enhancement, and the spacelike separation loopholes.

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