Control of quantum dynamics by optimized measurements

Abstract

Quantum measurements are considered for optimal control of quantum dynamics with instantaneous and continuous observations utilized to manipulate population transfer. With an optimal set of measurements, the highest yield in a two-level system can be obtained. The analytical solution is given for the problem of population transfer by measurement-assisted coherent control in a three-level system with a dynamical symmetry. The anti-Zeno effect is recovered in the controlled processes. The demonstrations in the paper show that suitable observations can be powerful tools in the manipulation of quantum dynamics.

18 pages, 2 figures

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• Optimal Zeno Dragging for Quantum Control: A Shortcut to Zeno with Action-based Scheduling Optimization
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• Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe
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• Continuous measurements in probability representation of quantum mechanics
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• Quantum state driving: measurements versus pulses