Please use this identifier to cite or link to this item: https://doi.org/10.1137/100801287
Title: Quantum measurement-based feedback control: A nonsmooth time delay control approach
Authors: Ge, S.S. 
Vu, T.L.
Lee, T.H. 
Keywords: Delaydependent stochastic stability
Quantum feedback control
State-transferring
Stochastic nonlinear control
Issue Date: 2012
Source: Ge, S.S., Vu, T.L., Lee, T.H. (2012). Quantum measurement-based feedback control: A nonsmooth time delay control approach. SIAM Journal on Control and Optimization 50 (2) : 845-863. ScholarBank@NUS Repository. https://doi.org/10.1137/100801287
Abstract: This paper addresses the problem of measurement-based feedback control for quantum systems, in which the time to compute the filter-based control input is taken into account by considering the input delay. It starts with a new Lyapunov-LaSalle-like theorem for delay-dependent stochastic stability of a class of time delay stochastic nonlinear systems. Nonsmooth time delay control is then constructed to compensate for the control-computation time, which is known but arbitrarily long, while globally stabilizing the quantum filters almost surely. The nonsmooth property enables the control to deal with the symmetric topology of filter state space. The effectiveness of the proposed control is illustrated through the global stabilization of the spin-1/2 systems. Simulation results are presented and discussed to show the effectiveness of the proposed control. © 2012 Society for Industrial and Applied Mathematics.
Source Title: SIAM Journal on Control and Optimization
URI: http://scholarbank.nus.edu.sg/handle/10635/57175
ISSN: 03630129
DOI: 10.1137/100801287
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