Creation of quantum correlations via the initial classical-mixed states |
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Authors: | Han Wei Zhang Ying-Jieand Xia Yun-Jie |
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Institution: | Key Laboratory of Laser Polarization and Information Technology of Shandong Province, Department of Physics, Qufu Normal University, Qufu 273165, China |
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Abstract: | Using the pseudomode method, we theoretically analyze the creation of quantum correlations between two two-level dipole-dipole interacting atoms coupled with a common structured reservoir with different coupling strengths. Considering certain classes of initial separable-mixed states, we demonstrate that the sudden birth of atomic entanglement as well as the generation of stationary quantum correlations occur. Our results also suggest a possible way to control the occurrence time of entanglement sudden birth and the stationary value of quantum correlations by modifying the initial conditions of states, the dipole-dipole interaction, and the relative coupling strength. These results are helpful for the experimental engineering of entanglement and quantum correlations. |
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Keywords: | quantum correlation quantum entanglement quantum discord pseudomode method |
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