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- W1999241504 abstract "We develop dynamical programming methods for the purpose of optimal control of quantum states with convex constraints and concave cost and bequest functions of the quantum state. We consider both open loop and feedback control schemes, which correspond, respectively, to deterministic and stochastic master equation dynamics. For the quantum feedback control scheme with continuous nondemolition observations, we exploit the separation theorem of filtering and control aspects for quantum stochastic dynamics to derive a generalized Hamilton-Jacobi-Bellman equation. If the control is restricted to only Hamiltonian terms this is equivalent to a Hamilton-Jacobi equation with an extra linear dissipative term. In this work, we consider, in particular, the case when control is restricted only to observation. A controlled qubit is considered as an example throughout the development of the formalism. Finally, we discuss optimum observation strategies to obtain a pure state from a mixed state of a quantum two-level system." @default.
- W1999241504 created "2016-06-24" @default.
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- W1999241504 date "2009-02-27" @default.
- W1999241504 modified "2023-10-03" @default.
- W1999241504 title "Dynamical programming of continuously observed quantum systems" @default.
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- W1999241504 doi "https://doi.org/10.1103/physreva.79.022123" @default.
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