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Abstract
Recently Pikovski et al. (Nat Phys 11:668, 2015) have proposed in an intriguing universal decoherence mechanism, suggesting that gravitation may play a conceptually important role in the quantum-to-classical transition, albeit vanishingly small in everyday situations. Here we analyze information transfer induced by this mechanism. We show that generically on short time-scales, gravitational decoherence leads to a redundant information encoding, which results in a form of objectivization of the center-of-mass position in the gravitational field. We derive the relevant time-scales of this process, given in terms of energy dispersion and quantum Fisher information. As an example we study thermal coherent states and show certain robustness of the effect with the temperature. Finally, we draw an analogy between our objectivization mechanism and the fundamental problem of point individuation in General Relativity as emphasized by the Einstein’s Hole argument.
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s10714-017-2319-3
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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GENERAL RELATIVITY AND GRAVITATION
no. 49,
edition 12,
pages 1 - 19,
ISSN: 0001-7701 - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Korbicz J., Tuziemski J.: Information transfer during the universal gravitational decoherence// GENERAL RELATIVITY AND GRAVITATION. -Vol. 49, iss. 12 (2017), s.1-19
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s10714-017-2319-3
- Verified by:
- Gdańsk University of Technology
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