Effect of Classical and Quantum Superposition of Atomic States on Quantum Correlations
In this paper, we report the effect of classical and quantum superposition of atomic states on quantum correlations. Coupled photon pairs generated in a ladder quantum beat laser using coherent-induced classical field and atomic state coherent superposition are considered. Once the quantum coherence...
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Advances in Mathematical Physics |
| Online Access: | http://dx.doi.org/10.1155/2023/2729561 |
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| author | Chimdessa Gashu Ebisa Mosisa Chali Idosa |
| author_facet | Chimdessa Gashu Ebisa Mosisa Chali Idosa |
| author_sort | Chimdessa Gashu |
| collection | DOAJ |
| description | In this paper, we report the effect of classical and quantum superposition of atomic states on quantum correlations. Coupled photon pairs generated in a ladder quantum beat laser using coherent-induced classical field and atomic state coherent superposition are considered. Once the quantum coherence get sufficient time, it can generate quantum correlations that include quantum discord, quantum entanglement, and quantum steering, which quickly increase with time until they get their maximum strength. Their strength can be improved further by increasing the number of superposed atoms per unit time, selecting an appropriate amplitude of the classical fields, and managing the amount of temperatures and phase fluctuations. In particular, two-way quantum steering, which is a guarantee for the existence of quantum discord and quantum entanglement, can be achieved by increasing the rate of atomic injection from 2 kHz to 25 kHz even if the mean temperature of the heat bath is considered. The maximum achievable strength of quantum correlations is enhanced by increasing the rate of atomic injection and choosing an appropriate parameters of the coherent-induced classical field in the open quantum system which is treated by using the density operator approach. |
| format | Article |
| id | doaj-art-418d9754a0684686af92eba9d7c97752 |
| institution | OA Journals |
| issn | 1687-9139 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Mathematical Physics |
| spelling | doaj-art-418d9754a0684686af92eba9d7c977522025-08-20T02:08:26ZengWileyAdvances in Mathematical Physics1687-91392023-01-01202310.1155/2023/2729561Effect of Classical and Quantum Superposition of Atomic States on Quantum CorrelationsChimdessa Gashu0Ebisa Mosisa1Chali Idosa2Department of PhysicsDepartment of PhysicsDepartment of PhysicsIn this paper, we report the effect of classical and quantum superposition of atomic states on quantum correlations. Coupled photon pairs generated in a ladder quantum beat laser using coherent-induced classical field and atomic state coherent superposition are considered. Once the quantum coherence get sufficient time, it can generate quantum correlations that include quantum discord, quantum entanglement, and quantum steering, which quickly increase with time until they get their maximum strength. Their strength can be improved further by increasing the number of superposed atoms per unit time, selecting an appropriate amplitude of the classical fields, and managing the amount of temperatures and phase fluctuations. In particular, two-way quantum steering, which is a guarantee for the existence of quantum discord and quantum entanglement, can be achieved by increasing the rate of atomic injection from 2 kHz to 25 kHz even if the mean temperature of the heat bath is considered. The maximum achievable strength of quantum correlations is enhanced by increasing the rate of atomic injection and choosing an appropriate parameters of the coherent-induced classical field in the open quantum system which is treated by using the density operator approach.http://dx.doi.org/10.1155/2023/2729561 |
| spellingShingle | Chimdessa Gashu Ebisa Mosisa Chali Idosa Effect of Classical and Quantum Superposition of Atomic States on Quantum Correlations Advances in Mathematical Physics |
| title | Effect of Classical and Quantum Superposition of Atomic States on Quantum Correlations |
| title_full | Effect of Classical and Quantum Superposition of Atomic States on Quantum Correlations |
| title_fullStr | Effect of Classical and Quantum Superposition of Atomic States on Quantum Correlations |
| title_full_unstemmed | Effect of Classical and Quantum Superposition of Atomic States on Quantum Correlations |
| title_short | Effect of Classical and Quantum Superposition of Atomic States on Quantum Correlations |
| title_sort | effect of classical and quantum superposition of atomic states on quantum correlations |
| url | http://dx.doi.org/10.1155/2023/2729561 |
| work_keys_str_mv | AT chimdessagashu effectofclassicalandquantumsuperpositionofatomicstatesonquantumcorrelations AT ebisamosisa effectofclassicalandquantumsuperpositionofatomicstatesonquantumcorrelations AT chaliidosa effectofclassicalandquantumsuperpositionofatomicstatesonquantumcorrelations |