The transfer of nonlocality between two- and three-qubit dissipative systems with counter-rotating-wave terms
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866915230816141312 |
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| author | Xiong, Zi-Yu Xiao, Yong-Jun Zhang, Ye-Qi He, Qi-Liang |
| author_facet | Xiong, Zi-Yu Xiao, Yong-Jun Zhang, Ye-Qi He, Qi-Liang |
| contents | We investigate the effect of counter-rotating-wave terms on nonlocality and entanglement for three qubits coupled with a common bath for strong and ultrastrong coupling regimes beyond the traditional treatment of Born-Markovian, perturbative and rotating wave approximations by employing the numerical hierarchical equations of motion approach. Our findings are as follows: (i) In the strong coupling regime, the counter-rotating terms accelerate the decay of genuine three-party correlations, and the obvious sudden birth of BN is found; (ii) In the ultrastrong coupling regime, we observe a novel phenomenon where nonlocality is consistently transferred between a three-qubit and its subsystem. Besides, the inclusion of counter-rotating wave terms obviously enhances genuine tripartite nonlocality; and (iii) These counter-rotating terms cannot effectively generate genuine three-party correlations in zero-excitation cases, which differs from previous studies involving only two qubits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_13905 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The transfer of nonlocality between two- and three-qubit dissipative systems with counter-rotating-wave terms Xiong, Zi-Yu Xiao, Yong-Jun Zhang, Ye-Qi He, Qi-Liang Quantum Physics We investigate the effect of counter-rotating-wave terms on nonlocality and entanglement for three qubits coupled with a common bath for strong and ultrastrong coupling regimes beyond the traditional treatment of Born-Markovian, perturbative and rotating wave approximations by employing the numerical hierarchical equations of motion approach. Our findings are as follows: (i) In the strong coupling regime, the counter-rotating terms accelerate the decay of genuine three-party correlations, and the obvious sudden birth of BN is found; (ii) In the ultrastrong coupling regime, we observe a novel phenomenon where nonlocality is consistently transferred between a three-qubit and its subsystem. Besides, the inclusion of counter-rotating wave terms obviously enhances genuine tripartite nonlocality; and (iii) These counter-rotating terms cannot effectively generate genuine three-party correlations in zero-excitation cases, which differs from previous studies involving only two qubits. |
| title | The transfer of nonlocality between two- and three-qubit dissipative systems with counter-rotating-wave terms |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2411.13905 |