Quantum correlations in optomechanical system in the presence of optical feedback
In this paper, we investigate the dynamics of quantum correlations for the continuous-variable bipartite optomechanical system in the presence of homodyne mediated quantum feedback. The system is constructed using the Fabry–Perot cavity and a mechanical oscillator. In detail, we have studied the qua...
| 發表在: | Physics Open |
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| 主要作者: | |
| 格式: | Article |
| 語言: | 英语 |
| 出版: |
Elsevier
2022-05-01
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| 主題: | |
| 在線閱讀: | http://www.sciencedirect.com/science/article/pii/S2666032622000023 |
| _version_ | 1857070807994335232 |
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| author | Sitotaw Eshete |
| author_facet | Sitotaw Eshete |
| author_sort | Sitotaw Eshete |
| collection | DOAJ |
| container_title | Physics Open |
| description | In this paper, we investigate the dynamics of quantum correlations for the continuous-variable bipartite optomechanical system in the presence of homodyne mediated quantum feedback. The system is constructed using the Fabry–Perot cavity and a mechanical oscillator. In detail, we have studied the quantum entanglement via logarithmic negativity, quantum discord, and quantum steering between the optical and mechanical modes. The results show that the maximum entanglement between the optical and mechanical modes occurred out of the resonance frequency at the steady-state region due to the presence of the optical feedback. We also employ quantum steering to see the steerability between the modes. It is observed that the quantum entanglement increases when the effective detuning frequency increases, however, the quantum discord and steering decrease when the effective detuning frequency increases for a given quantum feedback strength with other parameters of the system are to be fixed. Moreover, the presence of quantum feedback has an enhancement effect on the quantum correlations. |
| format | Article |
| id | doaj-art-68e71edd9a4048a894ce0049f2f0f00a |
| institution | Directory of Open Access Journals |
| issn | 2666-0326 |
| language | English |
| publishDate | 2022-05-01 |
| publisher | Elsevier |
| record_format | Article |
| spelling | doaj-art-68e71edd9a4048a894ce0049f2f0f00a2025-08-19T19:25:42ZengElsevierPhysics Open2666-03262022-05-011110010010.1016/j.physo.2022.100100Quantum correlations in optomechanical system in the presence of optical feedbackSitotaw Eshete0Department of Physics, Debre Tabor University, P. Box 272, Debre Tabor, EthiopiaIn this paper, we investigate the dynamics of quantum correlations for the continuous-variable bipartite optomechanical system in the presence of homodyne mediated quantum feedback. The system is constructed using the Fabry–Perot cavity and a mechanical oscillator. In detail, we have studied the quantum entanglement via logarithmic negativity, quantum discord, and quantum steering between the optical and mechanical modes. The results show that the maximum entanglement between the optical and mechanical modes occurred out of the resonance frequency at the steady-state region due to the presence of the optical feedback. We also employ quantum steering to see the steerability between the modes. It is observed that the quantum entanglement increases when the effective detuning frequency increases, however, the quantum discord and steering decrease when the effective detuning frequency increases for a given quantum feedback strength with other parameters of the system are to be fixed. Moreover, the presence of quantum feedback has an enhancement effect on the quantum correlations.http://www.sciencedirect.com/science/article/pii/S2666032622000023Quantum discordQuantum steeringOptomechanical systemResonance frequencyQuantum feedbackLogarithmic negativity |
| spellingShingle | Sitotaw Eshete Quantum correlations in optomechanical system in the presence of optical feedback Quantum discord Quantum steering Optomechanical system Resonance frequency Quantum feedback Logarithmic negativity |
| title | Quantum correlations in optomechanical system in the presence of optical feedback |
| title_full | Quantum correlations in optomechanical system in the presence of optical feedback |
| title_fullStr | Quantum correlations in optomechanical system in the presence of optical feedback |
| title_full_unstemmed | Quantum correlations in optomechanical system in the presence of optical feedback |
| title_short | Quantum correlations in optomechanical system in the presence of optical feedback |
| title_sort | quantum correlations in optomechanical system in the presence of optical feedback |
| topic | Quantum discord Quantum steering Optomechanical system Resonance frequency Quantum feedback Logarithmic negativity |
| url | http://www.sciencedirect.com/science/article/pii/S2666032622000023 |
| work_keys_str_mv | AT sitotaweshete quantumcorrelationsinoptomechanicalsysteminthepresenceofopticalfeedback |