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Journal articles
Illustration of quantum complementarity using single photons interfering on a grating
Abstract : A recent experiment performed by Afshar et al (2007 Found. Phys. 37 295–305) has been interpreted as a violation of Bohr's complementarity principle between interference visibility and which-path information (WPI) in a two-path interferometer. We have reproduced this experiment, using true singlephoton pulses propagating in a two-path wavefront-splitting interferometer realized with a Fresnel's biprism, and followed by a grating with adjustable transmitting slits. The measured values of interference visibility V and WPI, characterized by the distinguishability parameter D, are found to obey the complementarity relation V2 + D2 6 1. This result demonstrates that the experiment can be perfectly explained by the standard interpretation of quantum mechanics.
Cited literature [21 references]
https://hal-iogs.archives-ouvertes.fr/hal-00570459
Contributor : Philippe Grangier <>
Submitted on : Tuesday, April 5, 2016 - 4:43:31 PM
Last modification on : Tuesday, October 20, 2020 - 5:28:02 PM
Long-term archiving on: : Wednesday, July 6, 2016 - 3:21:44 PM
Contributor : Philippe Grangier <>
Submitted on : Tuesday, April 5, 2016 - 4:43:31 PM
Last modification on : Tuesday, October 20, 2020 - 5:28:02 PM
Long-term archiving on: : Wednesday, July 6, 2016 - 3:21:44 PM
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