The CHSH Test is Sufficient to Observe the KCBS-Type Quantum Contextuality
Fuente:
arXiv
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866910353764384768 |
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| author | Diker, Firat |
| author_facet | Diker, Firat |
| contents | In this work, we show that the well-known Bell test called Clauser-Horne-Shimony-Holt (CHSH) does not only exhibit non-locality but also the KCBS-type contextuality. For this purpose, we investigate the symmetric subgroup of two-qubit states corresponding to qutrit states (three-level quantum states), which exhibit the KCBS-type (non-)contextuality. Later, we apply the CHSH test to them and find a new non-contextuality bound for this test. This shows us that the CHSH inequality can be modified by changing the limit to use it as a KCBS-type contextuality test. Also, the number of measurements required is four, less than the number of measurements in the KCBS test (That is five). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_12868 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | The CHSH Test is Sufficient to Observe the KCBS-Type Quantum Contextuality Diker, Firat Quantum Physics In this work, we show that the well-known Bell test called Clauser-Horne-Shimony-Holt (CHSH) does not only exhibit non-locality but also the KCBS-type contextuality. For this purpose, we investigate the symmetric subgroup of two-qubit states corresponding to qutrit states (three-level quantum states), which exhibit the KCBS-type (non-)contextuality. Later, we apply the CHSH test to them and find a new non-contextuality bound for this test. This shows us that the CHSH inequality can be modified by changing the limit to use it as a KCBS-type contextuality test. Also, the number of measurements required is four, less than the number of measurements in the KCBS test (That is five). |
| title | The CHSH Test is Sufficient to Observe the KCBS-Type Quantum Contextuality |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2309.12868 |