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PRACQSYS 2008
The Principles and Applications of Control in Quantum Systems


25-27 August 2008
Eugene, Oregon


Ian Petersen

Coherent H infinity control for a class of linear complex quantum systems
(Wednesday, 27 August, 3:30-4:10)

Abstract:

This paper considers a coherent H infinity control problem for a class of linear quantum systems which can be defined by complex quantum stochastic differential equations in terms of annihilator operators only. For this class of quantum systems, a solution to the H infinity control problem can be obtained in terms of a pair of complex Riccati equations. The paper also considers complex versions of the Bounded Real Lemma, the Strict Bounded Real Lemma and the Lossless Bounded Real Lemma. For the class of quantum systems under consideration, the question of physical realizability is related to the Bounded Real and Lossless Bounded Real properties.