Physics – Quantum Physics
Scientific paper
2005-02-24
J. Opt. B: Quantum Semiclass. Opt. 7 S237-S244 (2005)
Physics
Quantum Physics
14 pages, no figures (modified notation)
Scientific paper
10.1088/1464-4266/7/10/006
We exploit the separation of the filtering and control aspects of quantum feedback control to consider the optimal control as a classical stochastic problem on the space of quantum states. We derive the corresponding Hamilton-Jacobi-Bellman equations using the elementary arguments of classical control theory and show that this is equivalent, in the Stratonovich calculus, to a stochastic Hamilton-Pontryagin setup. We show that, for cost functionals that are linear in the state, the theory yields the traditional Bellman equations treated so far in quantum feedback.
Belavkin Viacheslav P.
Gough John
Smolyanov Oleg G.
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