Optimal and robust control of population transfer in asymmetric quantum-dot molecules

郭裕 ¹马松山 ²束传存²

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作者信息

1. Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering,School of Physics and Electronic Science,Changsha University of Science and Technology,Changsha 410114,China
2. Hunan Key Laboratory of Nanophotonics and Devices,School of Physics,Central South University,Changsha 410083,China
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Abstract

We present an optimal and robust quantum control method for efficient population transfer in asymmetric double quantum-dot molecules.We derive a long-duration control scheme that allows for highly efficient population transfer by accurately controlling the amplitude of a narrow-bandwidth pulse.To overcome fluctuations in control field parameters,we employ a frequency-domain quantum optimal control theory method to optimize the spectral phase of a single pulse with broad bandwidth while preserving the spectral amplitude.It is shown that this spectral-phase-only optimization approach can successfully identify robust and optimal control fields,leading to efficient population transfer to the target state while concurrently suppressing population transfer to undesired states.The method demonstrates resilience to fluctuations in con-trol field parameters,making it a promising approach for reliable and efficient population transfer in practical applications.

Key words

population transfer/quantum optimal control theory/quantum-dot molecules

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基金项目

National Natural science Foundations of China(12275033)

National Natural science Foundations of China(61973317)

National Natural science Foundations of China(12274470)

Natural Science Foundation of Hunan Province for Distinguished Young Scholars(2022JJ10070)

Natural Science Foundation of Hunan Province(2022JJ30582)

Scientific Research Fund of Hunan Provincial Education Department(20A025)

出版年

2024

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

参考文献量64

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