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Possibility of observing energy decoherence due to quantum gravity

Abstract:

It has recently been proposed that quantum gravity might lead to the decoherence of superpositions in energy, corresponding to a discretization of time at the Planck scale. The proposal seems amenable to experimental verification with methods from quantum optics and atomic physics. However, we argue that the predicted decoherence is unobservable in such experiments if it acts globally on the whole experimental setup. This is related to the unobservability of the global phase in interference. ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1103/PhysRevA.70.052104

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Institution:
Laboratoire de Spectrométrie Physique, CNRS et Université Joseph Fourier Grenoble-I, France
Role:
Author
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Institution:
University of Oxford
Research group:
Dieter Jaksch Theory Group
Department:
Mathematical,Physical & Life Sciences Division - Physics - Atomic & Laser Physics
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Author
IRC network on Quantum Information Processing More from this funder
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review A Journal website
Volume:
70
Issue:
5
Pages:
Article: 052104
Publication date:
2004-11-05
DOI:
EISSN:
1094-1622
ISSN:
1050-2947
URN:
uuid:05d9638a-c1b9-487d-8e0d-a8266b510b7b
Local pid:
ora:1766

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