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Is measurement-based feedback still better for quantum control systems?

文献类型：期刊论文

作者Qi, Bo; Guo, Lei
刊名SYSTEMS & CONTROL LETTERS
出版日期2010-06-01
卷号59期号:6页码:333-339
关键词Quantum feedback control Open-loop control Capability of control Stochastic master equation Measurement
ISSN号0167-6911
DOI10.1016/j.sysconle.2010.03.008
英文摘要In this paper, we put forward a fundamental question concerning feedback control of quantum systems: Is measurement-based feedback control still better than open-loop control? In contrast to the classical control theory, the answer is far from obvious. This is because measurement-based feedback needs measurement to reduce the system uncertainty, whereas the measurement on a quantum system will inevitably increase the system uncertainty in turn. In fact, there is a complicated tradeoff between the uncertainty introduced and the information gained by the measurement on a quantum system. To investigate this fundamental problem, we will only focus on a typical model of coherent control mode with and without the decoherence term in the paper. By establishing some fundamental limits on the performances of both the open-loop and measurement-based feedback controls, we will demonstrate via simulation that the measurement-based feedback control of quantum systems is still superior to the open-loop control in some sense for the typical model under consideration. (C) 2010 Elsevier B.V. All rights reserved.
资助项目National Natural Science Foundation of China[60821091] ; National Natural Science Foundation of China[60703083] ; CAS[KJCX3-SYW-S01]
WOS研究方向Automation & Control Systems ; Operations Research & Management Science
语种英语
WOS记录号WOS:000280432900002
出版者ELSEVIER SCIENCE BV
源URL[http://ir.amss.ac.cn/handle/2S8OKBNM/10539]  
专题系统科学研究所
国家数学与交叉科学中心
通讯作者Qi, Bo
作者单位Chinese Acad Sci, Key Lab Syst & Control, ISS, Acad Math & Syst Sci, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Qi, Bo,Guo, Lei. Is measurement-based feedback still better for quantum control systems?[J]. SYSTEMS & CONTROL LETTERS,2010,59(6):333-339.
APA Qi, Bo,&Guo, Lei.(2010).Is measurement-based feedback still better for quantum control systems?.SYSTEMS & CONTROL LETTERS,59(6),333-339.
MLA Qi, Bo,et al."Is measurement-based feedback still better for quantum control systems?".SYSTEMS & CONTROL LETTERS 59.6(2010):333-339.

入库方式： OAI收割

来源：数学与系统科学研究院

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