Qubit disentanglement in local squeezed reservoirs |
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Authors: | Xiang-Fa Zhou Yong-Sheng Zhang Guang-Can Guo |
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Institution: | Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, People''s Republic of China |
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Abstract: | We consider the influence of the local squeezed vacuum fields on two initially entangled two-qubit system. By considering the upper bound of entanglement under time evolution, we find that the decay of the quantum entanglement shows different behavior for different time scales (t?max{(2βA)−1,(2βB)−1} and t?min{(2βA)−1,(2βB)−1}). The relative phase of the squeezing environment can also affect the entanglement dynamics profoundly. |
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Keywords: | 42 50 -p 03 65 Ud 03 65 Yz |
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