| 论文简介 |
Guang Hu,1 Wei-Qiang Sun,1 Bing-Jun Li,1 Yan-Fei Li ,1,* Wei-Min Wang ,2,3,4,† Meng Zhu,5, Hua-Si Hu,1,‡ and Yu-Tong Li3,6,4,7
1Department of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China
2Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, China
3Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
4Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
5Northwest Institute of Nuclear Technology, Xi’an 710024, China
6School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
7Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
(Received 15 June 2020; revised 17 September 2020; accepted 28 September 2020; published 16 October 2020)
Impacts of quantum stochasticity on the dynamics of an ultrarelativistic electron beam head-on colliding with a linearly polarized ultraintense laser pulse are theoretically investigated in a quasiclassical regime. Generally, the angular distribution of the electron beam keeps symmetrically in transverse directions in this regime, even under the ponderomotive force of the laser pulse. Here we show that under certain conditions an asymmetric angular distribution of the electron beam arises due to the quantum stochasticity effect, via simulations employing Landau-Lifshitz equation, quantum-modified Landau-Lifshitz equation, and quantum stochastic radiation reaction forms, to describe the radiative electron dynamics. The asymmetry is robust against a variety of laser and electron parameters, providing an experimentally detectable signature for the nature of quantum stochasticity of photon emission with laser and electron beams currently available.
DOI: 10.1103/PhysRevA.102.042218
This work is supported by the National Natural Science Foundation of China (Grants No. 11804269, No. U1830128, No. 11775302, and No.11975182), the National Key R&D Program of China (Grant No. 2018YFA0404801), the Strate gic Priority Research Program of the Chinese Academy of Sciences (Grants No. XDA25050300, XDA25010300, and No. XDB16010200), the Fundamental Research Funds for the Central Universities, and the Research Funds of Ren- min University of China (Grant No. 20XNLG01) |
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