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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 |