Using exchange attenuation to control non-disentanglement quantum information transport in phase damping channel
It is effective to constitute a hybrid qubit system by taking advantages of different types of qubits to overcome the effects of decoherence and achieve quantum information transport.We find that energy relaxation exists in the process of information exchange bewteen the hybrid qubits.Combining this kind of energy relaxation with the decoherence effects from external environment,quantum information transport of non-disentangled effect can be achieved in phase damping channel if the exchange decay rate and decoherence time satisfy certain constraint relations.
hybrid qubit energy relaxation non-disentanglement
Juju Hu Qiang Ke Haijiang Hu Yinghua Ji
Department of Physics,Jiangxi Normal University,Nanchang,Jiangxi 330022,China;Key Laboratory of Photoelectronics and Telecommunication of Jiangxi Province,Nanchang,Jiangxi 330022,China
国际会议
郑州
英文
1480-1483
2013-10-19(万方平台首次上网日期,不代表论文的发表时间)