Effect of feedback on the control of a two-level dissipative quantum system

Details Effect of feedback on the control of a two-level dissipative quantum system Effect of feedback on the control of a two-level dissipative quantum system

2008-06-10

arxiv.org/abs/0806.1643v1

PRA 78,052112(2008)

Physics

Quantum Physics

5 pages, 5 figures

Scientific paper

10.1103/PhysRevA.78.052112

We show that it is possible to modify the stationary state by a feedback control in a two-level dissipative quantum system. Based on the geometric control theory, we also analyze the effect of the feedback on the time-optimal control in the dissipative system governed by the Lindblad master equation. These effects are reflected in the function $\Delta_A(\vec{x})$ and $\Delta_B(\vec{x})$ that characterize the optimal trajectories, as well as the switching function $\Phi(t)$ and $\theta(t),$ which characterize the switching point in time for the time-optimal trajectory.

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