Control of quantum dynamics by optimized measurements
Feng Shuang, Mianlai Zhou, Alexander Pechen, Rebing Wu, Ofer M. Shir,, Herschel Rabitz
TL;DR
This paper explores how optimized quantum measurements can be used to control quantum dynamics, achieving high transfer efficiency and revealing effects like the anti-Zeno phenomenon.
Contribution
It introduces an optimal measurement strategy for quantum control and provides analytical solutions for population transfer in three-level systems.
Findings
Maximum transfer yield achieved with optimal measurements
Analytical solution for three-level system control
Anti-Zeno effect observed in controlled processes
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.
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