Entanglement from the vacuum
Quantum Physics
2022-10-12 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We explore the entanglement of the vacuum of a relativistic field by letting a pair of causally disconnected probes interact with the field. We find that, even when the probes are initially non-entangled, they can wind up to a final entangled state. This shows that entanglement persists between disconnected regions in the vacuum. However the probe entanglement, unlike correlations, vanishes once the regions become sufficiently separated. The relation between entropy, correlations and entanglement is discussed.
Cite
@article{arxiv.quant-ph/0212044,
title = {Entanglement from the vacuum},
author = {Benni Reznik},
journal= {arXiv preprint arXiv:quant-ph/0212044},
year = {2022}
}
Comments
15 pages, 2 figures, Latex2e, see also quant-ph/0008006. To appear in a special issue of Foundations of Physics in honor of Jacob Bekenstein