%0 Journal Article
%T Protecting entanglement by detuning: in Markovian environments vs in non-Markovian environments<br>
%A Huang Li-Yuan
%A Fang Mao-Fa
%A <br>
%J 中国物理 B
%D 2010
%I 
%X The models of two qubits separately trapped in two independent Markovian or non-Markovian environments have been investigated. The distinction of the two-qubit entanglement dynamics in different environments has also been discussed in detail. The results show that, in non-Markovian environments, the possible usage time of entanglement can be extended due to its memory effect. On the other hand, we note that, compared to Markovian environments, the two-qubit entanglement could be protected better in non-Markovian environments by modulating the detuning between qubits and cavities. Finally, an intuitive physical interpretation for these results is given.
%K protecting entanglement
%K Markovian environment
%K non-Markovian environment<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=08DEFA89D98EA9D29B81774A83A2EFF9&yid=140ECF96957D60B2&vid=2A8D03AD8076A2E3&iid=9CF7A0430CBB2DFD&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=27