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Popper's test of quantum mechanics and two-photon "ghost" diffraction

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arxiv quant-ph/0507040 v2 pith:CBEJODB5 submitted 2005-07-04 quant-ph physics.optics

Popper's test of quantum mechanics and two-photon "ghost" diffraction

classification quant-ph physics.optics
keywords testmechanicspopperquantumaccountambiguityanalyzedbriefly
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A test on quantum mechanics proposed long ago by Karl Popper is reconsidered with further detail and new insight. An ambiguity in the proposal, which turns out to be essential in order to make the test conclusive, is identified and taken into account for the first time. Its implications for recently performed photon experiments [such as in D. V. Strekalov \textit{et al.}, Phys. Rev.\ Lett. {\bf 74}, 3600 (1995)] are briefly analyzed.

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