dorsal/arxiv
View SchemaCorrelation loss and multipartite entanglement across a black hole horizon
| Authors | Gerardo Adesso, Ivette Fuentes-Schuller |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0702001 |
| URL | https://arxiv.org/abs/quant-ph/0702001 |
| Journal | Quant. Inf. Comput. 9, 0657-0665 (2009) |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
We investigate the Hawking effect on entangled fields. By considering a scalar field which is in a two-mode squeezed state from the point of view of freely falling (Kruskal) observers crossing the horizon of a Schwarzschild black hole, we study the degradation of quantum and classical correlations in the state from the perspective of Schwarzschild observers confined outside the horizon. Due to monogamy constraints on the entanglement distribution, we show that the lost bipartite entanglement is recovered as multipartite entanglement among modes inside and outside the horizon. In the limit of a small-mass black hole, no bipartite entanglement is detected outside the horizon, while the genuine multipartite entanglement interlinking the inner and outer regions grows infinitely.
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"abstract": "We investigate the Hawking effect on entangled fields. By considering a\nscalar field which is in a two-mode squeezed state from the point of view of\nfreely falling (Kruskal) observers crossing the horizon of a Schwarzschild\nblack hole, we study the degradation of quantum and classical correlations in\nthe state from the perspective of Schwarzschild observers confined outside the\nhorizon. Due to monogamy constraints on the entanglement distribution, we show\nthat the lost bipartite entanglement is recovered as multipartite entanglement\namong modes inside and outside the horizon. In the limit of a small-mass black\nhole, no bipartite entanglement is detected outside the horizon, while the\ngenuine multipartite entanglement interlinking the inner and outer regions\ngrows infinitely.",
"arxiv_id": "quant-ph/0702001",
"authors": [
"Gerardo Adesso",
"Ivette Fuentes-Schuller"
],
"categories": [
"quant-ph",
"astro-ph",
"cond-mat.stat-mech",
"gr-qc",
"hep-th",
"math-ph",
"math.MP"
],
"journal_ref": "Quant. Inf. Comput. 9, 0657-0665 (2009)",
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Correlation loss and multipartite entanglement across a black hole horizon",
"url": "https://arxiv.org/abs/quant-ph/0702001"
},
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