Quantitative bound entanglement in two-qutrit states

Sentis, Gael and Eltschka, Christopher and Siewert, Jens (2016) Quantitative bound entanglement in two-qutrit states. PHYSICAL REVIEW A, 94 (2): 020302. ISSN 2469-9926, 2469-9934

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Abstract

Among the many facets of quantum correlations, bound entanglement has remained one the most enigmatic phenomena, despite the fact that it was discovered in the early days of quantum information. Even its detection has proven to be difficult, let alone its precise quantitative characterization. In this work, we present the exact quantification of entanglement for a two-parameter family of highly symmetric two-qutrit mixed states, which contains a sizable part of bound entangled states. We achieve this by explicitly calculating the convex-roof extensions of the linear entropy as well as the concurrence for every state within the family. Our results provide a benchmark for future quantitative studies of bipartite entanglement in higher-dimensional systems.

Item Type: Article
Uncontrolled Keywords: SEPARABILITY; DISTILLATION; CRITERION;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics
Depositing User: Dr. Gernot Deinzer
Date Deposited: 05 Apr 2019 08:49
Last Modified: 05 Apr 2019 08:49
URI: https://pred.uni-regensburg.de/id/eprint/3452

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