Quantum dynamics driven by continuous laser fields under measurements: Towards measurement-assisted quantum dynamics control

Michihiko Sugawara

研究成果: Article

18 引用 (Scopus)

抄録

We study quantum system dynamics driven by continuous laser fields under the measurement process. In order to take into account the system transition due to the measurement, we define the superoperator which eliminates the coherence relevant to the measured quantum states. We clarify that the dynamics of the measured states is frozen in the frequent measurement limit, while the space spanned by unmeasured states is isolated from the original system. We also derive the effective Liouvillian which governs incoherent population dynamics under the condition, in which measurements are frequently applied. We apply the formulation to two-level and Λ -type three-level systems and clarify how the quantum measurements hinder the coherent population dynamics driven by the continuous laser fields in practical examples. Analysis on the laser field amplitude dependency of the final distribution in the t→∞ limit suggests the possibility of the measurement-assisted quantum control.

元の言語English
記事番号204115
ジャーナルJournal of Chemical Physics
123
発行部数20
DOI
出版物ステータスPublished - 2005

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dynamic control
Lasers
lasers
Population dynamics
Dynamical systems
formulations

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

これを引用

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