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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.03373 |
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| _version_ | 1866915092922105856 |
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| author | Kalaga, Joanna K. Leoński, Wiesław Peřina Jr, Jan |
| author_facet | Kalaga, Joanna K. Leoński, Wiesław Peřina Jr, Jan |
| contents | We discuss a family of W-class states describing three-qubit systems. For such systems, we analyze the relations between the entanglement measures and the nonlocality parameter for a two-mode mixed state related to the two-qubit subsystem. We find the conditions determining the boundary values of the negativity, parameterized by concurrence, for violating the Bell-CHSH inequality. Additionally, we derive the value ranges of the mixedness measure, parameterized by concurrence and negativity for the qubit--qubit mixed state, guaranteeing the violation and non-violation of the Bell-CHSH inequality. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_03373 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | W-class states-identification and quantification of Bell-CHSH inequalities' violation Kalaga, Joanna K. Leoński, Wiesław Peřina Jr, Jan Quantum Physics We discuss a family of W-class states describing three-qubit systems. For such systems, we analyze the relations between the entanglement measures and the nonlocality parameter for a two-mode mixed state related to the two-qubit subsystem. We find the conditions determining the boundary values of the negativity, parameterized by concurrence, for violating the Bell-CHSH inequality. Additionally, we derive the value ranges of the mixedness measure, parameterized by concurrence and negativity for the qubit--qubit mixed state, guaranteeing the violation and non-violation of the Bell-CHSH inequality. |
| title | W-class states-identification and quantification of Bell-CHSH inequalities' violation |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2501.03373 |