General relativistic effects in quantum interference of photons

Zych, Magdalena, Costa, Fabio, Pikovski, Igor, Ralph, Timothy C. and Brukner, Caslav (2012) General relativistic effects in quantum interference of photons. Classical and Quantum Gravity, 29 22: 224010-1-224010-18. doi:10.1088/0264-9381/29/22/224010

Author Zych, Magdalena
Costa, Fabio
Pikovski, Igor
Ralph, Timothy C.
Brukner, Caslav
Title General relativistic effects in quantum interference of photons
Journal name Classical and Quantum Gravity   Check publisher's open access policy
ISSN 0264-9381
Publication date 2012-11
Sub-type Article (original research)
DOI 10.1088/0264-9381/29/22/224010
Open Access Status
Volume 29
Issue 22
Start page 224010-1
End page 224010-18
Total pages 18
Place of publication Bristol, United Kingdom
Publisher Institute of Physics Publishing
Collection year 2013
Language eng
Abstract Quantum mechanics and general relativity have been extensively and independently confirmed in many experiments. However, the interplay of the two theories has never been tested: all experiments that measured the influence of gravity on quantum systems are consistent with non-relativistic, Newtonian gravity. On the other hand, all tests of general relativity can be described within the framework of classical physics. Here we discuss a quantum interference experiment with single photons that can probe quantum mechanics in curved space-time. We consider a single photon traveling in superposition along two paths in an interferometer, with each arm experiencing a different gravitational time dilation. If the difference in the time dilations is comparable with the photons coherence time, the visibility of the quantum interference is predicted to drop, while for shorter time dilations the effect of gravity will result only in a relative phase shift between the two arms. We discuss what aspects of the interplay between quantum mechanics and general relativity are probed in such experiments and analyze the experimental feasibility
Keyword Fourth test
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article number224010

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2013 Collection
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Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 15 times in Scopus Article | Citations
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