Quantum correlations and quantum fisher information of two qubits in the presence of the time-dependent coupling effect
In this paper, we consider two separate Jaynes–Cummings (JC) nodes with a nonidentical qubit-field system in the presence of dissipation terms. We reveal the influence of the time variation of the coupling terms on some important measures when the qubits are immersed in a vacuum. The density matrix...
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| Format: | Article |
| Language: | English English English |
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Springer
2020
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| Online Access: | http://irep.iium.edu.my/81530/ http://irep.iium.edu.my/81530/1/81530_Quantum%20correlations%20and%20quantum_MYRA.pdf http://irep.iium.edu.my/81530/2/81530_Quantum%20correlations%20and%20quantum_SCOPUS.pdf http://irep.iium.edu.my/81530/3/81530_Quantum%20correlations%20and%20quantum_WOS.pdf |
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| author | Raffah,, Bahaaudin Mohammadnoor Abdel-khalek,, Sayed Berrada,, Kamal Khalil,, Eied Al-Hadeethi,, Yas Fadel Almalky,, Nawal Wahiddin, Mohamed Ridza |
| author_facet | Raffah,, Bahaaudin Mohammadnoor Abdel-khalek,, Sayed Berrada,, Kamal Khalil,, Eied Al-Hadeethi,, Yas Fadel Almalky,, Nawal Wahiddin, Mohamed Ridza |
| author_sort | Raffah,, Bahaaudin Mohammadnoor |
| building | IIUM Repository |
| collection | Online Access |
| description | In this paper, we consider two separate Jaynes–Cummings (JC) nodes with a nonidentical qubit-field system in the presence of dissipation terms. We reveal the influence of the time variation of the coupling terms on some important measures when the qubits are immersed in a vacuum. The density matrix for the two qubits initially in Bell states are obtained. The dynamical behavior of the quantum discord (QD), classical correlation (CC), qubit-qubit entanglement, and quantum Fisher information (QFI) is investigated. We explore the relationship among QD, CC, qubit-qubit entanglement, and QFI in the absence and presence of the dissipation effect during the time evolution. Furthermore, we show the main optimal conditions for obtaining a high level of correlation and coherence between the two qubits. © 2020, Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature. |
| first_indexed | 2025-11-14T17:52:04Z |
| format | Article |
| id | iium-81530 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T17:52:04Z |
| publishDate | 2020 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-815302020-11-10T07:32:49Z http://irep.iium.edu.my/81530/ Quantum correlations and quantum fisher information of two qubits in the presence of the time-dependent coupling effect Raffah,, Bahaaudin Mohammadnoor Abdel-khalek,, Sayed Berrada,, Kamal Khalil,, Eied Al-Hadeethi,, Yas Fadel Almalky,, Nawal Wahiddin, Mohamed Ridza T Technology (General) In this paper, we consider two separate Jaynes–Cummings (JC) nodes with a nonidentical qubit-field system in the presence of dissipation terms. We reveal the influence of the time variation of the coupling terms on some important measures when the qubits are immersed in a vacuum. The density matrix for the two qubits initially in Bell states are obtained. The dynamical behavior of the quantum discord (QD), classical correlation (CC), qubit-qubit entanglement, and quantum Fisher information (QFI) is investigated. We explore the relationship among QD, CC, qubit-qubit entanglement, and QFI in the absence and presence of the dissipation effect during the time evolution. Furthermore, we show the main optimal conditions for obtaining a high level of correlation and coherence between the two qubits. © 2020, Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature. Springer 2020-06 Article PeerReviewed application/pdf en http://irep.iium.edu.my/81530/1/81530_Quantum%20correlations%20and%20quantum_MYRA.pdf application/pdf en http://irep.iium.edu.my/81530/2/81530_Quantum%20correlations%20and%20quantum_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/81530/3/81530_Quantum%20correlations%20and%20quantum_WOS.pdf Raffah,, Bahaaudin Mohammadnoor and Abdel-khalek,, Sayed and Berrada,, Kamal and Khalil,, Eied and Al-Hadeethi,, Yas Fadel and Almalky,, Nawal and Wahiddin, Mohamed Ridza (2020) Quantum correlations and quantum fisher information of two qubits in the presence of the time-dependent coupling effect. European Physical Journal Plus, 135 (6). ISSN 2190-5444 https://link-springer-com.ezproxy.um.edu.my/article/10.1140%2Fepjp%2Fs13360-020-00423-7 10.1140/epjp/s13360-020-00423-7 |
| spellingShingle | T Technology (General) Raffah,, Bahaaudin Mohammadnoor Abdel-khalek,, Sayed Berrada,, Kamal Khalil,, Eied Al-Hadeethi,, Yas Fadel Almalky,, Nawal Wahiddin, Mohamed Ridza Quantum correlations and quantum fisher information of two qubits in the presence of the time-dependent coupling effect |
| title | Quantum correlations and quantum fisher information of two qubits in the presence of the time-dependent coupling effect |
| title_full | Quantum correlations and quantum fisher information of two qubits in the presence of the time-dependent coupling effect |
| title_fullStr | Quantum correlations and quantum fisher information of two qubits in the presence of the time-dependent coupling effect |
| title_full_unstemmed | Quantum correlations and quantum fisher information of two qubits in the presence of the time-dependent coupling effect |
| title_short | Quantum correlations and quantum fisher information of two qubits in the presence of the time-dependent coupling effect |
| title_sort | quantum correlations and quantum fisher information of two qubits in the presence of the time-dependent coupling effect |
| topic | T Technology (General) |
| url | http://irep.iium.edu.my/81530/ http://irep.iium.edu.my/81530/ http://irep.iium.edu.my/81530/ http://irep.iium.edu.my/81530/1/81530_Quantum%20correlations%20and%20quantum_MYRA.pdf http://irep.iium.edu.my/81530/2/81530_Quantum%20correlations%20and%20quantum_SCOPUS.pdf http://irep.iium.edu.my/81530/3/81530_Quantum%20correlations%20and%20quantum_WOS.pdf |