Information Transmission Without Energy Exchange

2014/05/15 by Robert H. Jonsson, Eduardo Martín-Martínez, Eduardo Martin-Martinez +1 · 1 voice · 1 citation
Physics and Astronomy · #Quantum Electrodynamics and Casimir Effect #Quantum Mechanics and Applications #Mechanical and Optical Resonators

paper · pdf · doi:10.1103/physrevlett.114.110505

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. This type of communication is related to Casimir-like interactions, and it is made possible by dimension-and curvature-dependent subtleties of Huygens' principle.

Cited by

• Bose polarons as relativistic Unruh-DeWitt detectors: Entanglement harvesting from Bose-Einstein condensates

Discussions

• Let "information" here be defined as any sort of physical variable or quantity which can in principle take more than one value, such that in the presence of that physical quantity subsequent events ar [stackexchange, 14 points]

Related

• Quantum communication protocols using the vacuum
• Quantum communication on closed time-like curves
• Quantum Energy Teleportation: An Introductory Review
• Natural capacity of a system of two two-level atoms as a quantum information channel
• Quantum communication by means of collapse of the wave function