Eltschka, Christopher and Toth, Geza and Siewert, Jens (2015) Partial transposition as a direct link between concurrence and negativity. PHYSICAL REVIEW A, 91 (3): 032327. ISSN 2469-9926, 2469-9934
Full text not available from this repository.Abstract
Detection of entanglement in bipartite states is a fundamental task in quantum information. The first method to verify entanglement in mixed states was the partial-transpose criterion. Subsequently, numerous quantifiers for bipartite entanglement were introduced, among them concurrence and negativity. Surprisingly, these quantities are often treated as distinct or independent of each other. The aim of this contribution is to highlight the close relations between these concepts, to show the connections between seemingly independent results, and to present various estimates for the mixed-state concurrence within the same framework.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ENTANGLEMENT MEASURES; DENSITY-MATRICES; SEPARABILITY; STATES; CRITERION; FRACTION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Jul 2019 12:47 |
| Last Modified: | 23 Jul 2019 12:47 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5766 |
Actions (login required)
 |
View Item |
