Bipartite and tripartite entanglement in a Bose-Einstein acoustic black hole
Quantum Gases
2021-12-15 v2 General Relativity and Quantum Cosmology
Quantum Physics
Abstract
We investigate quantum entanglement in an analogue black hole realized in the flow of a Bose-Einstein condensate. The system is described by a three-mode Gaussian state and we construct the corresponding covariance matrix at zero and finite temperature. We study associated bipartite and tripartite entanglement measures and discuss their experimental observation. We identify a simple optical setup equivalent to the analogue Bose-Einstein black hole which suggests a new way of determining the Hawking temperature and grey-body factor of the system.
Keywords
Cite
@article{arxiv.2102.06175,
title = {Bipartite and tripartite entanglement in a Bose-Einstein acoustic black hole},
author = {Mathieu Isoard and Nadia Milazzo and Nicolas Pavloff and Olivier Giraud},
journal= {arXiv preprint arXiv:2102.06175},
year = {2021}
}