Irrelevance of photon events distinguishability in a class of Bell experiments
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1999-10Derechos
© 1999 The American Physical Society
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Physical Review. A, Atomic, molecular, and optical physics, vol. 60, iss. 4, p. R2614–R2617, (1999)
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American Physical Society
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Abstract:
We show that the possibility of distinguishing between single- and two-photon detection events, usually not met in the actual experiments, is not a necessary requirement for proof that the experiments of Alley and Shih [Phys. Rev. Lett. 61, 2921 (1988)] and Ou and Mandel [Phys. Rev. Lett. 61, 50 (1988)] are modulo a fair sampling assumption, valid tests of local realism. We also give the critical parameters for the experiments to be unconditional tests of local realism, and show that some other interesting phenomena (involving bosonic-type particle indistinguishability) can be observed during such tests.
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