Implications of the recent experimental realisation of the Einstein-Podolsky-Rosen paradox
Physics Department, University of Queensland - St Lucia,
Queensland 4072, Australia
Accepted: 27 August 1996
We point out that the recent experimental realisation by Ou et al. of the Einstein-Podolsky-Rosen paradox forces us to choose between two startling alternatives. We either reject macroscopic local realism (as defined in this paper) or accept that quantum mechanics is incomplete. In view of the significance of these implications, a further experiment involving delayed choice measurements and causal separation of measured fields should be considered.
PACS: 03.65.Bz – Quantum mechanics: foundations, theory of measurement, miscellaneous theories (including Aharonov-Bohm effect, Bell inequalities, Berry's phase) / 42.50.-p – Quantum optics
© EDP Sciences, 1996