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Control of sudden transition between classical and quantum correlations of two strongly driven atoms in dissipative cavities |
| Mu Qing-Xia (穆青霞) |
| School of Mathematics and Physics, North China Electric Power University, Beijing 102206, China |
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Abstract We investigate analytically the dynamics of classical and quantum correlations between two strongly driven atoms, each of which is trapped inside a dissipative cavity. It is found that there exists a finite time interval during which the quantum discord initially prepared in the X-type states is not destroyed by the decay of the cavities. The sudden transition between classical correlation and quantum discord is sensitive to the initial-state parameter, the cavity decay rate, and the cavity mode-driving field detuning. Interestingly, we show that the transition time can be prolonged significantly by increasing the degree of the detuning.
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Received: 29 November 2012
Revised: 07 February 2013
Accepted manuscript online:
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PACS:
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03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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42.50.Dv
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(Quantum state engineering and measurements)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11205056 and 11247308) and the Special Funds for the Co-construction Project of Beijing. |
Corresponding Authors:
Mu Qing-Xia
E-mail: qingxiamu@ncepu.edu.cn
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Cite this article:
Mu Qing-Xia (穆青霞) Control of sudden transition between classical and quantum correlations of two strongly driven atoms in dissipative cavities 2013 Chin. Phys. B 22 080305
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