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arXiv · 2102.06175

Bipartite and tripartite entanglement in a Bose-Einstein acoustic black hole

Mathieu Isoard·Nadia Milazzo·Nicolas Pavloff·Olivier Giraud
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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.

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Mathieu Isoard, Nadia Milazzo, Nicolas Pavloff, Olivier Giraud. 2021-02-11. Bipartite and tripartite entanglement in a Bose-Einstein acoustic black hole. https://doi.org/10.1103/physreva.104.063302

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