Quantum feedback networks and control:A brief survey  

作　　者：JAMES Matthew R 

机构地区：[1]ARC Centre for Quantum Computation and Communication Technology,Research School of Engineering,Australian National University,Canberra,ACT 0200,Australia

出　　处：《Chinese Science Bulletin》2012年第18期2200-2214,共15页

基　　金：supported by the National Natural Science Foundation of China(60804015);RGC Poly U5203/10E;AFOSR Grant FA2386-09-1-4089AOARD094089

摘　　要：The purpose of this paper is to provide a brief review of some recent developments in quantum feedback networks and control.A quantum feedback network (QFN) is an interconnected system consisting of open quantum systems linked by free fields and/or direct physical couplings.Basic network constructs,including series connections as well as feedback loops,are discussed.The quantum feedback network theory provides a natural framework for analysis and design.Basic properties such as dissipation,stability,passivity and gain of open quantum systems are discussed.Control system design is also discussed,primarily in the context of open linear quantum stochastic systems.The issue of physical realizability is discussed,and explicit criteria for stability,positive real lemma,and bounded real lemma are presented.Finally for linear quantum systems,coherent H∞ and LQG control are described.The purpose of this paper is to provide a brief review of some recent developments in quantum feedback networks and control. A quantum feedback network （QFN） is an interconnected system consisting of open quantum systems linked by free fields and/or direct physical couplings. Basic network constructs, including series connections as well as feedback loops, are discussed. The quantum feedback network theory provides a natural framework for analysis and design. Basic properties such as dissipation, stability, passivity and gain of open quantum systems are discussed. Control system design is also discussed, primarily in the context of open linear quantum stochastic systems. The issue of physical realizability is discussed, and explicit criteria for stability, positive real lemma, and bounded real lemma are presented. Finally for linear quantum systems, coherent H∞ and LQG control are described.

关 键 词：开放量子系统 反馈网络 控制系统 有界实引理 LQG控制 网络结构 反馈回路 网络理论 

分 类 号：O413.1[理学—理论物理]