Entropic uncertainty and quantum non-classicality of Unruh-Dewitt detectors in relativity
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910713021202432 |
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| author | Zhang, Yu-Kun Li, Li-Juan Song, Xue-Ke Ye, Liu Wang, Dong |
| author_facet | Zhang, Yu-Kun Li, Li-Juan Song, Xue-Ke Ye, Liu Wang, Dong |
| contents | An object moving with the acceleration will change the temperature of environment around it, because of the presence of the Unruh thermal effect. In this work, we investigate the impact of Unruh thermal noise on the quantum-memory-assisted {entropic} uncertainty and quantum correlation regarding a pair of Unruh-Dewitt detectors. Specifically, we examine how the acceleration, the coupling strength between the external field and the detector, and the initial state affect the uncertainty and the system's quantum discord. It turns out that the Unruh effect will result in the loss of the systemic quantumness and inflation of the uncertainty. Moreover, it is revealed that the uncertainty is reversely correlated with the system's quantum discord. Thereby, it is believed that our investigations provide new insights into understanding the behavior of objects in the relativistic background. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_16135 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Entropic uncertainty and quantum non-classicality of Unruh-Dewitt detectors in relativity Zhang, Yu-Kun Li, Li-Juan Song, Xue-Ke Ye, Liu Wang, Dong General Relativity and Quantum Cosmology Quantum Physics An object moving with the acceleration will change the temperature of environment around it, because of the presence of the Unruh thermal effect. In this work, we investigate the impact of Unruh thermal noise on the quantum-memory-assisted {entropic} uncertainty and quantum correlation regarding a pair of Unruh-Dewitt detectors. Specifically, we examine how the acceleration, the coupling strength between the external field and the detector, and the initial state affect the uncertainty and the system's quantum discord. It turns out that the Unruh effect will result in the loss of the systemic quantumness and inflation of the uncertainty. Moreover, it is revealed that the uncertainty is reversely correlated with the system's quantum discord. Thereby, it is believed that our investigations provide new insights into understanding the behavior of objects in the relativistic background. |
| title | Entropic uncertainty and quantum non-classicality of Unruh-Dewitt detectors in relativity |
| topic | General Relativity and Quantum Cosmology Quantum Physics |
| url | https://arxiv.org/abs/2411.16135 |