A Coherence Preservation Control Strategy in Cavity QED Based on Classical Quantum Feedback
For eliminating the unexpected decoherence effect in cavity quantum electrodynamics (cavity QED), the transfer function of Rabi oscillation is derived theoretically using optical Bloch equations. In particular, the decoherence in cavity QED from the atomic spontaneous emission is especially consider...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/340917 |
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| _version_ | 1832564409443024896 |
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| author | Ming Li Wei Chen Junli Gao |
| author_facet | Ming Li Wei Chen Junli Gao |
| author_sort | Ming Li |
| collection | DOAJ |
| description | For eliminating the unexpected decoherence effect in cavity quantum electrodynamics (cavity QED), the transfer function of Rabi oscillation is derived theoretically using optical Bloch equations. In particular, the decoherence in cavity QED from the atomic spontaneous emission is especially considered. A feedback control strategy is proposed to preserve the coherence through Rabi oscillation stabilization. In the scheme, a classical quantum feedback channel for the quantum information acquisition is constructed via the quantum tomography technology, and a compensation system based on the root locus theory is put forward to suppress the atomic spontaneous emission and the associated decoherence. The simulation results have proved its effectiveness and superiority for the coherence preservation. |
| format | Article |
| id | doaj-art-7601ec5a9fa5439faaa2566219bc672b |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-7601ec5a9fa5439faaa2566219bc672b2025-02-03T01:11:10ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/340917340917A Coherence Preservation Control Strategy in Cavity QED Based on Classical Quantum FeedbackMing Li0Wei Chen1Junli Gao2School of Automation, Guangdong University of Technology, No. 100 Waihuan Xi Road, Guangzhou Higher Education Mega Center, Pan Yu District, Guangzhou, Guangdong 510006, ChinaSchool of Automation, Guangdong University of Technology, No. 100 Waihuan Xi Road, Guangzhou Higher Education Mega Center, Pan Yu District, Guangzhou, Guangdong 510006, ChinaSchool of Automation, Guangdong University of Technology, No. 100 Waihuan Xi Road, Guangzhou Higher Education Mega Center, Pan Yu District, Guangzhou, Guangdong 510006, ChinaFor eliminating the unexpected decoherence effect in cavity quantum electrodynamics (cavity QED), the transfer function of Rabi oscillation is derived theoretically using optical Bloch equations. In particular, the decoherence in cavity QED from the atomic spontaneous emission is especially considered. A feedback control strategy is proposed to preserve the coherence through Rabi oscillation stabilization. In the scheme, a classical quantum feedback channel for the quantum information acquisition is constructed via the quantum tomography technology, and a compensation system based on the root locus theory is put forward to suppress the atomic spontaneous emission and the associated decoherence. The simulation results have proved its effectiveness and superiority for the coherence preservation.http://dx.doi.org/10.1155/2013/340917 |
| spellingShingle | Ming Li Wei Chen Junli Gao A Coherence Preservation Control Strategy in Cavity QED Based on Classical Quantum Feedback The Scientific World Journal |
| title | A Coherence Preservation Control Strategy in Cavity QED Based on Classical Quantum Feedback |
| title_full | A Coherence Preservation Control Strategy in Cavity QED Based on Classical Quantum Feedback |
| title_fullStr | A Coherence Preservation Control Strategy in Cavity QED Based on Classical Quantum Feedback |
| title_full_unstemmed | A Coherence Preservation Control Strategy in Cavity QED Based on Classical Quantum Feedback |
| title_short | A Coherence Preservation Control Strategy in Cavity QED Based on Classical Quantum Feedback |
| title_sort | coherence preservation control strategy in cavity qed based on classical quantum feedback |
| url | http://dx.doi.org/10.1155/2013/340917 |
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