Radiation rebound and quantum splash in electron-laser collisions

The radiation reaction (RR) is expected to play a critical role in light-matter interactions at extreme intensity. Utilizing the theoretical analyses and three-dimensional (3D) numerical simulations, we demonstrate that electron reflection, induced by the RR in a head-on collision with an intense la...

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Veröffentlicht in:Physical review. Accelerators and beams 2019-09, Vol.22 (9), p.093401, Article 093401
Hauptverfasser: Gong, Z., Hu, R. H., Yu, J. Q., Shou, Y. R., Arefiev, A. V., Yan, X. Q.
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Sprache:eng
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Zusammenfassung:The radiation reaction (RR) is expected to play a critical role in light-matter interactions at extreme intensity. Utilizing the theoretical analyses and three-dimensional (3D) numerical simulations, we demonstrate that electron reflection, induced by the RR in a head-on collision with an intense laser pulse, can provide pronounced signatures to discern the classical and quantum RR. In the classical regime, there is a precipitous threshold of laser intensity to achieve the whole electron bunch rebound. However, this threshold becomes a gradual transition in the quantum regime, where the electron bunch is quasi-isotropically scattered by the laser pulse and this process resembles a water splash. Leveraged on the derived dependence of classical radiation rebound on the parameters of laser pulses and electron bunches, a practical detecting method is proposed to distinguish the quantum discrete recoil and classical continuous RR force.
ISSN:2469-9888
2469-9888
DOI:10.1103/PhysRevAccelBeams.22.093401