中国物理B ›› 2023, Vol. 32 ›› Issue (2): 25204-025204.doi: 10.1088/1674-1056/ac70b3

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Correction of intense laser-plasma interactions by QED vacuum polarization in collision of laser beams

Wen-Bo Chen(陈文博)1,† and Zhi-Gang Bu(步志刚)2   

  1. 1 Department of Physics, Shanghai University, Shanghai 200444, China;
    2 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2022-02-14 修回日期:2022-04-17 接受日期:2022-05-18 出版日期:2023-01-10 发布日期:2023-01-10
  • 通讯作者: Wen-Bo Chen E-mail:d_cwb@shu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11805117) and the Shanghai Leading Academic Discipline Project (Grant No. S30105).

Correction of intense laser-plasma interactions by QED vacuum polarization in collision of laser beams

Wen-Bo Chen(陈文博)1,† and Zhi-Gang Bu(步志刚)2   

  1. 1 Department of Physics, Shanghai University, Shanghai 200444, China;
    2 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2022-02-14 Revised:2022-04-17 Accepted:2022-05-18 Online:2023-01-10 Published:2023-01-10
  • Contact: Wen-Bo Chen E-mail:d_cwb@shu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11805117) and the Shanghai Leading Academic Discipline Project (Grant No. S30105).

摘要: The influence of vacuum polarization effects on the interactions of multiple ultra-intense lasers with plasmas is discussed. The nonlinear paraxial monochromatic model of the interactions has been improved by considering the Heisenberg-Euler Lagrangian density of two laser processes. Comparing the corrections of vacuum polarization effects in the collision of laser beams with one generated by a single intense laser, we find that the former has a higher order of magnitude correction. The laser collision also produces variations in the propagation direction and polarization direction of the lasers propagating in the plasma. In addition, the strong-field quantum electrodynamic (QED) effects can be enhanced by increasing the laser intensity or frequency difference, or by adjusting the incident angles of the two laser beams.

关键词: vacuum-polarization effects, extreme intensity laser, laser-plasma interactions

Abstract: The influence of vacuum polarization effects on the interactions of multiple ultra-intense lasers with plasmas is discussed. The nonlinear paraxial monochromatic model of the interactions has been improved by considering the Heisenberg-Euler Lagrangian density of two laser processes. Comparing the corrections of vacuum polarization effects in the collision of laser beams with one generated by a single intense laser, we find that the former has a higher order of magnitude correction. The laser collision also produces variations in the propagation direction and polarization direction of the lasers propagating in the plasma. In addition, the strong-field quantum electrodynamic (QED) effects can be enhanced by increasing the laser intensity or frequency difference, or by adjusting the incident angles of the two laser beams.

Key words: vacuum-polarization effects, extreme intensity laser, laser-plasma interactions

中图分类号:  (Elementary processes in plasmas)

  • 52.20.-j
52.38.-r (Laser-plasma interactions) 12.20.Ds (Specific calculations) 42.50.Xa (Optical tests of quantum theory)