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Published July 1, 2000 | public
Journal Article Open

Quantum feedback control and classical control theory


We introduce and discuss the problem of quantum feedback control in the context of established formulations of classical control theory, examining conceptual analogies and essential differences. We describe the application of state-observer-based control laws, familiar in classical control theory, to quantum systems and apply our methods to the particular case of switching the state of a particle in a double-well potential.

Additional Information

©2000 The American Physical Society Received 16 December 1999; published 13 June 2000 S.H., K.J., and H.M. would like to thank Tanmoy Bhattacharya, Chris Fuchs, and Howard Barnum for helpful discussions. This research was performed in part using the resources located at the Advanced Computing Laboratory of Los Alamos National Laboratory.


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August 21, 2023
October 13, 2023