Control of quantum dynamics by optimized measurements

Details Control of quantum dynamics by optimized measurements Control of quantum dynamics by optimized measurements

2009-02-16

arxiv.org/abs/0902.2596v1

Phys. Rev. A 78, 063422 (2008)

Physics

Quantum Physics

18 pages, 2 figures

Scientific paper

10.1103/PhysRevA.78.063422

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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