Generation of Entanglement Outside of the Light Cone
Quantum Physics
2009-11-13 v4
Abstract
The Feynman propagator has nonzero values outside of the forward light cone. That does not allow messages to be transmitted faster than the speed of light, but it is shown here that it does allow entanglement and mutual information to be generated at space-like separated points. These effects can be interpreted as being due to the propagation of virtual photons outside of the light cone or as a transfer of pre-existing entanglement from the quantum vacuum. The differences between these two interpretations are discussed.
Keywords
Cite
@article{arxiv.0704.1468,
title = {Generation of Entanglement Outside of the Light Cone},
author = {J. D. Franson},
journal= {arXiv preprint arXiv:0704.1468},
year = {2009}
}
Comments
25 pages, 7 figures. Additional references and figure