自动化学报2008，Vol.34Issue(4)：433-437,5.
用量子广义测量控制消相干
Control Decoherence by Quantum Generalized Measurement
摘要
Abstract
This paper explores the potential of combating the decoherence by associating quantum generalized measurement with decoherence-free subspaces (DFS). It is demonstrated that associating quantum generalized subspace projector measurement (QGSPM) and quantum generalized case-projector measurement (QGCPM) with the operator conditions for DFS will enhance the capability of suppressing the decoherence for both Markovian and non-Markovian open quantum systems. It is emphasized that quantum measurement can be regarded as a means to manipulate quantum states. This method is advantageous because the coherent control Hamilton can be constructively designed.关键词
Quantum measurement, decoherence-free subspace, decoherence controlKey words
Quantum measurement, decoherence-free subspace, decoherence control分类
信息技术与安全科学引用本文复制引用
张明,欧宝全,戴宏毅,胡德文..用量子广义测量控制消相干[J].自动化学报,2008,34(4):433-437,5.基金项目
Supported by National Natural Science Foundation of China(60674040) and National Science Fund for Distinguished YoungScholars of China (60225015) （60674040）
