Siewert, Jens and Eltschka, Christopher (2012) Quantifying Tripartite Entanglement of Three-Qubit Generalized Werner States. PHYSICAL REVIEW LETTERS, 108 (23): 230502. ISSN 0031-9007, 1079-7114
Full text not available from this repository.Abstract
Multipartite entanglement is a key concept in quantum mechanics for which, despite the experimental progress in entangling three or more quantum devices, there is still no general quantitative theory that exists. In order to characterize the robustness of multipartite entanglement, one often employs generalized Werner states, that is, mixtures of a Greenberger-Horne-Zeilinger (GHZ) state and the completely unpolarized state. While two-qubit Werner states have been instrumental for various important advancements in quantum information, as of now there is no quantitative account for such states of more than two qubits. By using the GHZ symmetry introduced recently, we find exact results for tripartite entanglement in three-qubit generalized Werner states and, moreover, the entire family of full-rank mixed states that share the same symmetries.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM; SEPARABILITY; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 11 May 2020 12:26 |
| Last Modified: | 11 May 2020 12:27 |
| URI: | https://pred.uni-regensburg.de/id/eprint/18601 |
Actions (login required)
 |
View Item |
