Bounds on quantum communication via Newtonian gravity

Kafri, D, Milburn, G J and Taylor, J M (2015) Bounds on quantum communication via Newtonian gravity. New Journal of Physics, 17 1: . doi:10.1088/1367-2630/17/1/015006


Author Kafri, D
Milburn, G J
Taylor, J M
Title Bounds on quantum communication via Newtonian gravity
Journal name New Journal of Physics   Check publisher's open access policy
ISSN 1367-2630
Publication date 2015-01-15
Year available 2015
Sub-type Article (original research)
DOI 10.1088/1367-2630/17/1/015006
Open Access Status DOI
Volume 17
Issue 1
Total pages 8
Place of publication Bristol, United Kingdom
Publisher Institute of Physics Publishing Ltd
Collection year 2016
Language eng
Formatted abstract
Newtonian gravity yields specific observable consequences, the most striking of which is the emergence of a 1/r^2 force. In so far as communication can arise via such interactions between distant particles, we can ask what would be expected for a theory of gravity that only allows classical communication. Many heuristic suggestions for gravity-induced decoherence have this restriction implicitly or explicitly in their construction. Here we show that communication via a 1/r^2 force has a minimum noise induced in the system when the communication cannot convey quantum information, in a continuous time analogue to Bellʼs inequalities. Our derived noise bounds provide tight constraints from current experimental results on any theory of gravity that does not allow quantum communication.
Keyword quantum measurement
Bell's inequality
quantum communication
classical gravity
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2016 Collection
 
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