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Analysis of mixed state entanglement with intrinsic decoherence |
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| Authors: | S. Abdel-Khalek Nour Zidan M. Abdel-Aty |
| Affiliation: | aMathematics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt;bMathematics Department, College of Science, Taif University, Taif, Saudi Arabia;cMathematics Department, College of Science, Al-Jouf University, Saudi Arabia;dCollege of Science, Bahrain University, 32038, Bahrain |
| Abstract: | We analyze different entanglement measures for a mixed state two-level system in the presence of intrinsic decoherence. The information about entanglement is obtained by comparing the results for the atomic Wehrl entropy and negativity with the analytical results for a simple case. For the strong decoherence case we find that a similar and long-lived maximum Wehrl entropy and negativity between atom and field are shown. The results highlight the important roles played by both the decoherence parameter and the initial state setting in determining the evolution of the atomic Wehrl entropy and negativity. |
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