Information transmission without energy exchange
Quantum Physics
2015-03-25 v3 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
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. Because of that, this kind of communication without energy exchange may be called "Quantum Collect Calling". This type of communication is related to Casimir-like interactions and it is made possible by dimension ---and curvature--- dependent subtleties of Huygens' principle.
Cite
@article{arxiv.1405.3988,
title = {Information transmission without energy exchange},
author = {Robert H. Jonsson and Eduardo Martin-Martinez and Achim Kempf},
journal= {arXiv preprint arXiv:1405.3988},
year = {2015}
}
Comments
Accepted in Physical Review Letters. RevTex 4.1, 5 pages, 2 figures. v3. Updated to match published version