Analytical double-unitary-transformation approach for strongly and periodically driven three-level systems

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成果类型：

期刊论文

作者：

Han, Yingying;Luo, Xiao-Qing;Li, Tie-Fu;Zhang, Wenxian*

通讯作者：

Zhang, Wenxian

作者机构：

[Han, Yingying; Zhang, Wenxian] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China.

[Han, Yingying] Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China.

[Luo, Xiao-Qing] Univ South China, Hunan Prov Key Lab Ultrafast MicroNano Technol, Sch Elect Engn, Hengyang 421001, Peoples R China.

[Li, Tie-Fu] Tsinghua Univ, Inst Microelect, Beijing 100084, Peoples R China.

[Li, Tie-Fu] Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China.

通讯机构：

[Zhang, Wenxian] W

Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China.

语种：

英文

期刊：

PHYSICAL REVIEW A

ISSN：

2469-9926

年：

2020

卷：

101

期：

页码：

022108

DOI：

10.1103/PhysRevA.101.022108

基金类别：

National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China [91836101, 11574239]; Science Challenge Project [TZ2018003]; Beijing Academy of Quantum Information Sciences (BAQIS) Research Program [Y18G27]

机构署名：

本校为其他机构

院系归属：

电气工程学院

摘要：

Floquet theory combined with the generalized Van Vleck nearly degenerate perturbation theory has been widely employed for studying various two-level systems that are driven by external fields via time-dependent longitudinal (i.e., diagonal) couplings. However, three-level systems strongly driven by time-dependent transverse (i.e., off-diagonal) couplings have rarely been investigated, due to the breakdown of the traditional rotating wave approximation. Meanwhile, the conventional perturbation theory is not directly applicable, since a small parameter for the perturbed part is no longer apparen...

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Analytical double-unitary-transformation approach for strongly and periodically driven three-level systems

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