Information transmission without energy exchange

We show that it is possible to use a massless field in the vacuum to communicate in such a way that the signal travels arbitrarily slower than the speed of light and such that no energy is transmitted from the sender to the receiver. Instead, the receiver has to supply a signal-dependent amount of w...

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Bibliographic Details
Published in:	Physical review letters Vol. 114; no. 11; p. 110505
Main Authors:	Jonsson, Robert H, Martín-Martínez, Eduardo, Kempf, Achim
Format:	Journal Article
Language:	English
Published:	United States 20-03-2015
Subjects:	Detectors Energy transmission Energy use Exchange Receivers Switches
Online Access:	Get full text
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Summary:	We show that it is possible to use a massless field in the vacuum to communicate in such a way that the signal travels arbitrarily slower than the speed of light and such that no energy is transmitted from the sender to the receiver. Instead, the receiver has to supply a signal-dependent amount of work to switch his detector on and off. This type of communication is related to Casimir-like interactions, and it is made possible by dimension-and curvature-dependent subtleties of Huygens' principle.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0031-9007 1079-7114
DOI:	10.1103/physrevlett.114.110505