All-optical generation of quantum entangled states with strictly constrained ultrafast laser pulses

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成果类型：

期刊论文

作者：

Guo, Yu;Luo, Xiaobing;Ma, Shan;Shu, Chuan-Cun*

通讯作者：

Shu, Chuan-Cun

作者机构：

[Guo, Yu; Shu, Chuan-Cun] Cent S Univ, Sch Phys & Elect, Hunan Key Lab Super Microstruct & Ultrafast Proc, Changsha 410083, Hunan, Peoples R China.

[Guo, Yu] Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Hunan Prov Key Lab Flexible Elect Mat Genome Engn, Changsha 410114, Hunan, Peoples R China.

[Luo, Xiaobing] Jinggangshan Univ, Dept Phys, Inst Atom Mol Phys & Funct Mat, Jian 343009, Jiangxi, Peoples R China.

[Ma, Shan] Cent S Univ, Sch Automat, Changsha 410083, Hunan, Peoples R China.

通讯机构：

[Shu, Chuan-Cun] C

Cent S Univ, Sch Phys & Elect, Hunan Key Lab Super Microstruct & Ultrafast Proc, Changsha 410083, Hunan, Peoples R China.

语种：

英文

期刊：

PHYSICAL REVIEW A

ISSN：

2469-9926

年：

2019

卷：

100

期：

页码：

023409

DOI：

10.1103/PhysRevA.100.023409

基金类别：

National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [61803389, 11465009, 11165009]; Hunan Provincial Natural Science Foundation of ChinaNatural Science Foundation of Hunan Province [2017JJ2272]

机构署名：

本校为其他机构

院系归属：

物理与电子科学学院

摘要：

We present a quantum optimal control theory study combined with theoretical analysis to determine a pulsed laser field, capable of generating a maximally entangled state in two trapped two-level atoms. By expanding the time-dependent unitary operator to the first leading term of Magnus expansion, we reexamine the pulse area theorem for the trapped atoms driven by an arbitrarily temporary field. Due to the dipole-dipole interaction blockade, we find that the two trapped atoms described by a three-level ladder system can be reduced into an equivalent two-level model by using narrow-bandwidth pul...

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All-optical generation of quantum entangled states with strictly constrained ultrafast laser pulses

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