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Instant Extraction of Non-Perturbative Tripartite Entanglement

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arxiv 2204.02983 v1 pith:KDSXN6QG submitted 2022-04-06 quant-ph

Diana Méndez Avalos , Kensuke Gallock-Yoshimura , Laura J. Henderson , Robert B. Mann This is my paper · ORCID
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keywords entanglementtripartiteextractiona-b-cadmitsbipartiteconsidercontrast
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We consider the problem of extracting tripartite entanglement through single local instantaneous interactions of a separable target system A-B-C with a scalar field. We find, non-perturbatively, that tripartite entanglement is easily extracted in this scenario, in strong contrast to bipartite extraction, which is not possible due to a no-go theorem. The tripartite entanglement is of the GHZ-type, and an optimal value of the coupling exists that admits maximal extraction.

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    In a holographic CFT on a cylinder, a qutrit Unruh-DeWitt detector harvests more mana when the dual bulk scalar uses standard (Δ+) quantization than alternate (Δ−) quantization.

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