PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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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 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 |
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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.
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Received: 14 February 2022
Revised: 17 April 2022
Accepted manuscript online: 18 May 2022
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PACS:
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52.20.-j
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(Elementary processes in plasmas)
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52.38.-r
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(Laser-plasma interactions)
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12.20.Ds
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(Specific calculations)
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42.50.Xa
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(Optical tests of quantum theory)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11805117) and the Shanghai Leading Academic Discipline Project (Grant No. S30105). |
Corresponding Authors:
Wen-Bo Chen
E-mail: d_cwb@shu.edu.cn
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Cite this article:
Wen-Bo Chen(陈文博) and Zhi-Gang Bu(步志刚) Correction of intense laser-plasma interactions by QED vacuum polarization in collision of laser beams 2023 Chin. Phys. B 32 025204
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