首页|Twin-Capture Rydberg State Excitation Enhanced with Few-Cycle Laser Pulses

Twin-Capture Rydberg State Excitation Enhanced with Few-Cycle Laser Pulses

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Quantum excitation is usually regarded as a transient process occurring instantaneously,leaving the under-lying physics shrouded in mystery.Recent research shows that Rydberg-state excitation with ultrashort laser pulses can be investigated and manipulated with state-of-the-art few-cycle pulses.We theoretically find that the efficiency of Rydberg state excitation can be enhanced with a short laser pulse and modulated by varying the laser intensities.We also uncover new facets of the excitation dynamics,including the launching of an electron wave packet through strong-field ionization,the re-entry of the electron into the atomic potential and the crucial step where the electron makes a U-turn,resulting in twin captures into Rydberg orbitals.By tuning the laser intensity,we show that the excitation of the Rydberg state can be coherently controlled on a sub-optical-cycle timescale.Our work paves the way toward ultrafast control and coherent manipulation of Rydberg states,thus benefiting Rydberg-state-based quantum technology.

赵晶、刘金磊、王小伟、赵增秀

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Department of Physics,National University of Defense Technology,Changsha 410073,China

Hunan Key Laboratory of Extreme Matter and Applications,National University of Defense Technology,Changsha 410073,China

国家重点研发计划国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金Science and Technology Innovation Program of Hunan Province

2019YFA0307703122340201187406612274461119744262022RC1193

2024

中国物理快报(英文版)
中国科学院物理研究所,中国物理学会

中国物理快报(英文版)

CSTPCDEI
影响因子:0.515
ISSN:0256-307X
年,卷(期):2024.41(1)
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