https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/ Physics, computation, philosophy of mind Tue, 07 Apr 2026 13:14:39 +0000 http://wordpress.org/?v=2.0.4 https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-183710 Thu, 21 May 2009 02:52:29 +0000 https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-183710 this is one of the best explanations I've read yet. Also, I think this type of erasure is more interesting than the polarization work done by Walborn. Thanks for the summary! this is one of the best explanations I’ve read yet. Also, I think this type of erasure is more interesting than the polarization work done by Walborn. Thanks for the summary!

]]> https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-23721 Sun, 25 Nov 2007 18:42:24 +0000 https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-23721 The use of BSA and BSB is intended to observe both-path and which-path properties in the same experiment. If they are replaced with mirrors, only the both-path part of the experiment will be observed, with the same results. The Aspect et al. experiment cited in footnote 10 indeed removes BSA and BSB and makes instead BS switchable. The use of BSA and BSB is intended to observe both-path and which-path properties in the same experiment. If they are replaced with mirrors, only the both-path part of the experiment will be observed, with the same results. The Aspect et al. experiment cited in footnote 10 indeed removes BSA and BSB and makes instead BS switchable.

]]> https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-23707 Sun, 25 Nov 2007 17:48:10 +0000 https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-23707 If beam splitters BSA and BSB are replaced by full mirrors, do you still get complementary interference patterns at D1 and D2, and do you now get an interference pattern at D0? Has anyone published results of this control experiment? If beam splitters BSA and BSB are replaced by full mirrors, do you still get complementary interference patterns at D1 and D2, and do you now get an interference pattern at D0? Has anyone published results of this control experiment?

]]> https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-12763 Tue, 04 Sep 2007 01:37:30 +0000 https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-12763 The beam splitter leads to an asymmetry, since transmission and reflection are phase-shifted. This yelds an opposite sign in the expression of the correlated amplitudes for D1 and D2, and a 180-degree phase shift of the corresponding interference patterns. The beam splitter leads to an asymmetry, since transmission and reflection are phase-shifted. This yelds an opposite sign in the expression of the correlated amplitudes for D1 and D2, and a 180-degree phase shift of the corresponding interference patterns.

]]> https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-12224 Fri, 31 Aug 2007 09:29:51 +0000 https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-12224 Great and easy description of this mysterious quantum world. I would like to know if there is an explanation about why we have different patterns in images from D0 correlated with D1 and with D2? If the array is symmetric, will be logic to have the same image in both correlations. How this can be explained according the quantum mechanics? Great and easy description of this mysterious quantum world. I would like to know if there is an explanation about why we have different patterns in images from D0 correlated with D1 and with D2? If the array is symmetric, will be logic to have the same image in both correlations. How this can be explained according the quantum mechanics?

]]> https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-1312 Fri, 30 Mar 2007 20:17:08 +0000 https://strangepaths.com/the-quantum-eraser-experiment/2007/03/20/en/#comment-1312 [...] Cool Experiments Motivated by some recent quantum optics work recording the birth and death of microwave photons in a superconducting resonant cavity by a French group, Chad Orzel has proclaimed this to be “the golden age of experimental quantum optics”. And indeed, it seems to be: two other such experiments include this study of the Hanbury-Brown-Twiss effect, and this more recent realization of the delayed-choice experiment first proposed by John Wheeler in 1978. A closely related experiment is that of the ‘quantum eraser’ proposed by Scully and Drühl in 1981, and this post does an excellent job of summarizing the general principles. [...] […] Cool Experiments Motivated by some recent quantum optics work recording the birth and death of microwave photons in a superconducting resonant cavity by a French group, Chad Orzel has proclaimed this to be “the golden age of experimental quantum optics”. And indeed, it seems to be: two other such experiments include this study of the Hanbury-Brown-Twiss effect, and this more recent realization of the delayed-choice experiment first proposed by John Wheeler in 1978. A closely related experiment is that of the ‘quantum eraser’ proposed by Scully and Drühl in 1981, and this post does an excellent job of summarizing the general principles. […]

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