Stabilizing Quantum States by Constructive Design of Open Quantum Dynamics

Details Stabilizing Quantum States by Constructive Design of Open Quantum Dynamics Stabilizing Quantum States by Constructive Design of Open Quantum Dynamics

2009-11-21

arxiv.org/abs/0911.4156v3

IEEE Transactions on Automatic Control 55(12), 2901-2905 (2010)

Physics

Quantum Physics

Revised version with stronger proofs showing uniqueness can be achieved in all cases by using the freedom to the choose diagon

Scientific paper

10.1109/TAC.2010.2079532

Based on recent work on the asymptotic behavior of controlled quantum Markovian dynamics, we show that any generic quantum state can be stabilized by devising constructively a simple Lindblad-GKS generator that can achieve global asymptotic stability at the desired state. The applications of such result is demonstrated by designing a direct feedback strategy that achieves global stabilization of a qubit state encoded in a noise-protected subspace.

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