Dressed Charge of Electron by Radiation Reaction

8th International Conference on Inertial Fusion Sciences and Applications

Seto, Keita^1,7 ; Zhang, Sen^2 ; Koga, James^3 ; Moritaka, Toseo^1 ; Homma, Kensuke^4,5 ; Nakamiya, Yoshihide^4 ; Nagatomo, Hideo^1 ; Mima, Kunioki^1,6

Institute of Laser Engineering, Osaka University, Suita, Osaka, Japan^1

Okayama Institute for Quantum Physics, Kita-ku Okayama, Japan^2

Quantum Beam Science Dir., Japan Atomic Energy Agency, Kizugawa Kyoto, Japan^3

Graduate School of Science, Hiroshima University, Hiroshima, Japan^4

International Center for Zetta-Exawatt Science and Technology, Ecole Polytechnique, Route de Saclay, Palaiseau Cedex, France^5

Graduate School for the Creation of New Photonics Industries, Hamamatsu, Shizuoka, Japan^6

Extreme Light Infrastructure - Nuclear Physics (ELI-NP), Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering (IFIN-HH), 30 Reactorului St., Bucharest-Magurele

RO-077125, Romania^7

关键词: Electron-positron pair creation;    High intense lasers;    Mathematical difficulty;    Maximum intensities;    Photon-photon scattering;    Radiation reactions;    Short-pulse lasers;    Vacuum polarization;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/688/1/012105/pdf
DOI  :  10.1088/1742-6596/688/1/012105

来源: IOP

【 摘 要 】

With the progress of ultraintense short pulse laser technologies, the maximum intensity of the lasers has reached the order of 1022W/cm2. Now, several institutes are aiming at higher intensities of over 1024∼W/cm2. It is expected that these lasers can investigate the regime of the ultra-intense field effects like electron-positron pair creation and annihilation, these high-intense laser fields enters into the non-linear QED regime. However, when an electron interacts with lasers with intensities over 1022W/cm2, it has been predicted that the radiation reaction effect becomes significant. The strong radiation field can induce the fluctuation of QED vacuum (vacuum polarization or photon-photon scatterings). Though the propagator for fields is deformed by it, some kind of a polarized charge exists as the dress. In this paper, we will discuss about this dress of an electron generated by radiation in the description of classical physics. It leads to the avoidance of the mathematical difficulty of the radiation reaction problems.