Experimental Realization of Popper's Experiment: Violation of the Uncertainty Principle? [Book Review]

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Foundations of Physics 29 (12):1849-1861 (1999)
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Abstract

An entangled pair of photons (1 and 2) are emitted in opposite directions. A narrow slit is placed in the path of photon 1 to provide the precise knowledge of its position on the y-axis and this also determines the precise y-position of its twin, photon 2, due to quantum entanglement. Is photon 2 going to experience a greater uncertainty in momentum, that is, a greater Δpy because of the precise knowledge of its position y? The experimental data show Δy Δ py < h for photon 2. Can this recent realization of the thought experiment of Karl Popper signal a violation of the uncertainty principle?

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10.1023/a:1018890316979

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Citations of this work

Karl Popper and the copenhagen interpretation.Asher Peres - 2002 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 33 (1):23-34.
Popper's Experiment Revisited.Sancho Pedro - 2002 - Foundations of Physics 32 (5):789-805.
Genesis of Karl Popper's EPR-like experiment and its resonance amongst the physics community in the 1980s.Flavio Del Santo - 2018 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 62:56-70.

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