Quantum control of two-qubit entanglement dissipation
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- 作者：Allan I. Solomon (12) a.i.solomon@open.ac.uk
Sophie G. Schirmer (3) sgs29@swansea.ac.uk - 关键词：two ; qubit system – ; entanglement – ; Markovian dissipation – ; feedback control
- 刊名：Journal of Russian Laser Research
- 出版时间：August 2011
- 出版年：2011
- 期刊代码：18_10712836
- 类别：ph
- 卷：32
- 期：5
- 页码：502-510
- 数据来源：sp
摘要
We investigate quantum control of the dissipation of entanglement under environmental decoherence. We show by means of a simple two-qubit model that standard control methods – coherent or openloop control – will not in general prevent entanglement loss induced by a Markovian environment. However, we propose a control method utilizing a Wiseman–Milburn feedback/measurement control scheme which will effectively negate environmental entanglement dissipation.