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Many refinements and extensions of Kim et al. delayed-choice quantum eraser have been performed or proposed. Only a small sampling of reports and proposals are given here: Scarcelli et al. (2007) reported on a delayed-choice quantum-eraser experiment based on a two-photon imaging scheme. After detecting a photon passed through a double-slit, a ...
The quantum eraser experiment was proposed in 1982 in Marlan Scully and Kai Drühl in the paper Quantum eraser: A proposed photon correlation experiment concerning observation and "delayed choice" in quantum mechanics, as a realizable way to test the hitherto untested predictions of quantum mechanics.
Cosmic versions of the delayed-choice use photons emitted billions of years ago; the results are unchanged. [3] The concept of delayed choice has been productive of many revealing experiments. [4] New versions of the delayed choice concept use quantum effects to control the "choices", leading to quantum delayed-choice experiments.
English: The graphs showing experimental data from the paper by Kim et al. on a Delayed Choice Quantum Eraser experiment have been redrawn in a somewhat simplified form, and one diagram patterned after an identical output has been supplied.
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It has been argued that the results of delayed-choice quantum eraser experiments empirically falsify this interpretation. [13] However, the argument was shown to be invalid because an interference pattern would only be visible after post-measurement detections were correlated through use of a coincidence counter; [ 14 ] if that was not true ...
[clarification needed] This unavoidably prevents superluminal communication since, even if a random or purposeful decision appears to be affecting events that have already transpired (as in the delayed choice quantum eraser), the signal from the past cannot be seen/decoded until the coincidence circuit has correlated both the past and future ...
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