| 原子双阱势中电子波包的非绝热操控 |
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| 引用本文： | 谭勇刚,杨海峰.原子双阱势中电子波包的非绝热操控[J].原子与分子物理学报,2020,37(5):657-662. |
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| 作者姓名： | 谭勇刚 杨海峰 |
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| 作者单位： | 洛阳师范学院,洛阳师范学院,洛阳师范学院 |
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| 基金项目： | 河南省高等学校青年骨干教师培养计划（2017GGJS137） |
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| 摘 要： | 交叉电场和磁场中的氢原子具有双阱势能结构。本文基于量子力学模拟，采用半周期脉冲（HCP）序列开展电子波包的非绝热操控。详细研究了HCP的电场幅度、数量和时间间隔对电子波包的空间和能量分布的影响，实现了将初始电子波包非绝热转移到远离库伦中心的外势阱中的低能态，这些低能态较为稳定且显示出很大的电偶极矩。相比光激发和绝热操控，本文的方法更为快速、高效，可以应用于更为复杂的外场或分子体系。
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| 关 键 词： | 里德堡原子 双势阱 半周期脉冲 |
| 收稿时间： | 2019/9/3 0:00:00 |
| 修稿时间： | 2019/9/25 0:00:00 |
Non-adiabatic control of electron wave-packet in atomic double-well potential |
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| Tan Yong-Gang and Yang Hai-Feng.Non-adiabatic control of electron wave-packet in atomic double-well potential[J].Journal of Atomic and Molecular Physics,2020,37(5):657-662. |
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| Authors: | Tan Yong-Gang and Yang Hai-Feng |
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| Institution: | Luoyang Normal University,Luoyang Normal University,Luoyang Normal University |
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| Abstract: | The potential energy of hydrogen atom in the crossed electric and magnetic fields presents a double-well structure. Based on quantum mechanical simulation, this paper uses a half-cycle pulse (HCP) sequence to perform non-adiabatic manipulation of electronic wave packets. The effects of the amplitude, number and time interval of HCP on the space and energy distribution of the electron wave packet are studied in detail, and the electron wave packet is non-adiabatically transferred to the low energy state of the external potential well away from the Coulomb center. These low energy states are stable and displays large electric dipole moment. Compared to photoexcitation and adiabatic manipulation, the method in this paper is faster and more efficient and can be applied to more complex external fields or molecular systems. |
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| Keywords: | Rydberg atoms double-wells half-cycle pulse |
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