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Quantum Discord Dynamics of Two Atoms Interacting with Two Quantized Field Modes through a Raman Interaction with Phase Decoherence |
| QIAN Yi, XU Jing-Bo**
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Zhejiang Institute of Modern Physics and Department of Physics, Zhejiang University, Hangzhou 310027
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| Cite this article: |
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QIAN Yi, XU Jing-Bo 2011 Chin. Phys. Lett. 28 070306 |
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Abstract We investigate the quantum discord dynamics of two effective two-level atoms independently interacting with two quantized field modes through a Raman interaction in the presence of phase decoherence. The influence of the phase decoherence and detuning on the evolution of the quantum discord and entanglement between two atoms is discussed. It is found that the quantum discord is more robust than the entanglement under the phase decoherence, and the amount of discord and entanglement between two atoms can be increased by adjusting the detuning.
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| Keywords:
03.67.-a
03.65.Ud
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Received: 08 March 2011
Published: 29 June 2011
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| PACS: |
03.67.-a
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(Quantum information)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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