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Improved bounds on some entanglement criteria in bipartite quantum systems
oleh: Liang Tang, Fan Wu
| Format: | Article |
|---|---|
| Diterbitkan: | Elsevier 2023-08-01 |
Deskripsi
Entanglement detection is one of the core tasks in quantum information processing. Based on a broad class of informationally complete symmetric measurements, a series of separability criteria are proposed for different bipartite quantum systems using Cauchy–Schwarz inequality and ρ−ρA⊗ρB, respectively. In addition, by comparing and analyzing the existing entanglement criteria and detailed examples, it is not difficult to prove that our proposed criteria are more powerful and comprehensive in entanglement detection.