Deterministic entanglement extraction

dc.contributor.author	Roa L.
dc.contributor.author	Muñoz A.
dc.contributor.author	Muñoz C.
dc.contributor.author	Klimov A.B.
dc.date.accessioned	2020-09-02T22:27:02Z
dc.date.available	2020-09-02T22:27:02Z
dc.date.issued	2019
dc.identifier	10.1103/PhysRevA.99.052344
dc.identifier.citation	99, 5, -
dc.identifier.issn	24699926
dc.identifier.uri	https://hdl.handle.net/20.500.12728/6032
dc.description	We propose a scheme for a deterministic extraction of entanglement by means of a reduction process involving local von Neumann measurements. In an example of a tripartite system, we show that by choosing appropriate measurement bases for a given qubit, one can map an initial three-qubit state into outcome pure bipartite states with the same amount of entanglement of formation. In addition, by optimizing local projective measurements, one can efficiently convert higher-order correlations, contained in a multipartite state, into their lower-order counterparts, and thus significantly enhance the initial (reduced mixed-state) entanglement. We find the analytical expressions for the bounds of the deterministically extracted entanglement and relate them with the initial three-tangle and bipartite (mixed-state) concurrences. © 2019 American Physical Society.
dc.language.iso	en
dc.publisher	American Physical Society
dc.title	Deterministic entanglement extraction
dc.type	Article

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