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State Transfer of Two-level Quantum System Feedback Control Based on Online State Estimation

Cong, S; Tang, Y; Li, K; (2021) State Transfer of Two-level Quantum System Feedback Control Based on Online State Estimation. In: 2021 40th Chinese Control Conference (CCC). (pp. pp. 6301-6306). IEEE: Shanghai, China. Green open access

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Abstract

A quantum state feedback control method is proposed in this paper. The state of a two-level open quantum system is estimated online based on the continuous weak measurement and the compressed sensing theory. Based on the state estimated online and the Lyapunov stability theorem, the state feedback control law used to transfer the quantum state is designed. Moreover, three numerical simulation experiments are implemented in the MATLAB environment: the state transfer from eigenstates to eigenstates, superposition states to superposition states, and superposition states to mixed states. The experimental results verify high performance of the proposed feedback control based on the state estimated online.

Type: Proceedings paper
Title: State Transfer of Two-level Quantum System Feedback Control Based on Online State Estimation
Event: 2021 40th Chinese Control Conference (CCC)
ISBN-13: 9789881563804
Open access status: An open access version is available from UCL Discovery
DOI: 10.23919/CCC52363.2021.9550024
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: State feedback, Quantum system, Quantum state, Numerical simulation, Feedback control, State estimation, Compressed sensing
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Health Informatics
URI: https://discovery.ucl.ac.uk/id/eprint/10140470
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