量子电子学报2011，Vol.28Issue(1)：58-64,7.DOI:10.3969/j.issn.1007-5461.2011.01.010
非马尔科夫环境下耦合超导量子比特纠缠态的纠缠消相干
Entanglement decoherence of coupled superconductor qubits entangled states in non-Markovian environment
摘要
Abstract
The evolution of entangled decoherence of coupling superconducting qubits in non-Markovian environment is investigated in detail using concurrence function. The results show that, for coupling superconducting qubit under different entangled initial states, because of the role of memory feedback due to environmental effect, the entanglement of coupling superconducting qubits under a thermal bath always tends to zero monotonically. Further results also showed that, the sudden death of entanglement will soon occur in non-Markovian process, stronger the dissipation, faster the death of entanglement. But in Markovian process, it tends to death of entanglement slowly.关键词
量子光学/纠缠/耦合量子比特/非马尔可夫过程/共生纠缠度Key words
quantum optics/ entanglement/ coupled qubits/ non-Markovian process/ concurrence分类
数理科学引用本文复制引用
嵇英华,徐林..非马尔科夫环境下耦合超导量子比特纠缠态的纠缠消相干[J].量子电子学报,2011,28(1):58-64,7.基金项目
国家自然科学基金(10864002)资助项目 （10864002）
