Creation mechanism of electron-positron pair on equally spaced multiple localized fields

doi:10.1088/1674-1056/acd7cd

中国物理B ›› 2023, Vol. 32 ›› Issue (9): 94202-094202.doi: 10.1088/1674-1056/acd7cd

Creation mechanism of electron-positron pair on equally spaced multiple localized fields

Chuan-Ke Li(李传可)¹, Nan-Sheng Lin(林南省)^2,†, Xian-Xian Zhou(周鲜鲜)³, Miao Jiang(江淼)², and Ying-Jun Li(李英骏)^1,2,‡

1 State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining and Technology, Beijing 100083, China;
2 School of Science, China University of Mining and Technology, Beijing 100083, China;
3 School of Management Science and Engineering, Anhui University of Finance and Economics, Bengbu 233030, China

收稿日期:2023-02-22 修回日期:2023-04-27 接受日期:2023-05-23 发布日期:2023-08-28
通讯作者: Nan-Sheng Lin, Ying-Jun Li E-mail:phy.nslin@gmail.com;lyj@aphy.iphy.ac.cn
基金资助:
This work was supported by the National Natural Science Foundation of China (Grant Nos. 11974419, 11605286, and 12204001) and the National Key R&D Program of China (Grant No. 2018YFA0404802).

Creation mechanism of electron-positron pair on equally spaced multiple localized fields

Chuan-Ke Li(李传可)¹, Nan-Sheng Lin(林南省)^2,†, Xian-Xian Zhou(周鲜鲜)³, Miao Jiang(江淼)², and Ying-Jun Li(李英骏)^1,2,‡

1 State Key Laboratory for GeoMechanics and Deep Underground Engineering, China University of Mining and Technology, Beijing 100083, China;
2 School of Science, China University of Mining and Technology, Beijing 100083, China;
3 School of Management Science and Engineering, Anhui University of Finance and Economics, Bengbu 233030, China

Received:2023-02-22 Revised:2023-04-27 Accepted:2023-05-23 Published:2023-08-28
Contact: Nan-Sheng Lin, Ying-Jun Li E-mail:phy.nslin@gmail.com;lyj@aphy.iphy.ac.cn
Supported by:
This work was supported by the National Natural Science Foundation of China (Grant Nos. 11974419, 11605286, and 12204001) and the National Key R&D Program of China (Grant No. 2018YFA0404802).

摘要/Abstract

摘要： We investigate the electron-positron creation process from multiple equally spaced distributed oscillating electric fields. The computational quantum field theory (CQFT) is applied to analyze the effect of the number of local fields, the distance between them, and their potential height on the created particle number. It is found that whether adjacent electric fields overlap plays an important role. The creation rate exhibits a direct linear relationship with the number of fields when they do not overlap, but exceeds the sum of the rate when the fields alone. They exhibit a distinctly nonlinear relationship when they overlap, and in particular exhibit a quadratic relationship when the fields completely overlap. These phenomena corroborate that the particle pair creation in the interaction region is non-uniform and influenced by the strength of the central strongest electric field.

关键词: electron-positron pair creation, ultra-strong laser field, computational quantum field theory

Abstract: We investigate the electron-positron creation process from multiple equally spaced distributed oscillating electric fields. The computational quantum field theory (CQFT) is applied to analyze the effect of the number of local fields, the distance between them, and their potential height on the created particle number. It is found that whether adjacent electric fields overlap plays an important role. The creation rate exhibits a direct linear relationship with the number of fields when they do not overlap, but exceeds the sum of the rate when the fields alone. They exhibit a distinctly nonlinear relationship when they overlap, and in particular exhibit a quadratic relationship when the fields completely overlap. These phenomena corroborate that the particle pair creation in the interaction region is non-uniform and influenced by the strength of the central strongest electric field.

Key words: electron-positron pair creation, ultra-strong laser field, computational quantum field theory

中图分类号: (Wave propagation, transmission and absorption)

42.25.Bs

03.65.-w (Quantum mechanics) 12.20.-m (Quantum electrodynamics)

Chuan-Ke Li(李传可), Nan-Sheng Lin(林南省), Xian-Xian Zhou(周鲜鲜),Miao Jiang(江淼), and Ying-Jun Li(李英骏). Creation mechanism of electron-positron pair on equally spaced multiple localized fields[J]. 中国物理B, 2023, 32(9): 94202-094202.

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Creation mechanism of electron-positron pair on equally spaced multiple localized fields

Creation mechanism of electron-positron pair on equally spaced multiple localized fields

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