The effect of the electron's spin magnetic moment on quantum radiation in strong electromagnetic fields

被引：0

作者：

Ingle, L. A. ^{[1
]}

Arran, C. D. ^{[1
]}

Oxley, M. C. ^{[1
]}

Blackburn, T. G. ^{[2
]}

Bulanov, S., V ^{[3
]}

Murphy, C. D. ^{[1
]}

Ridgers, C. P. ^{[1
]}

机构：

[1] Univ York, York Plasma Inst, York YO10 5DQ, England

[2] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden

[3] Extreme Light Infrastruct ERIC, ELI Beamlines Facil, Radnici 835, Dolni Brezany 25241, Czech Republic

来源：

NEW JOURNAL OF PHYSICS | 2025年 / 27卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

QED; spin; radiation; simulation; RELATIVISTIC-PARTICLES; INTENSITY;

D O I：

10.1088/1367-2630/ade46b

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ultra-intense laser pulses can create sufficiently strong fields to probe quantum electrodynamics effects in a novel regime. By colliding a 60 GeV electron bunch with a laser pulse focussed to the maximum achievable intensity of 10(23) W cm(-2), we can reach fields much stronger than the critical Schwinger field in the electron rest frame. When the ratio of these fields chi(e)>> 1 we find that the hard ( >25 GeV) radiation from the electron has a substantial contribution from spin-light. 33% more photons are produced above this energy due to spin-light, the radiation resulting from the acceleration of the electron's intrinsic magnetic moment. This increase in high-energy photons results in 14% more positrons produced with energy above 25 GeV. Furthermore, the enhanced photon production due to spin-light results in a 46% increase in the electron recoil radiation reaction. These observable signatures provide a potential route to observing spin-light in the strongly quantum regime ( chi(e)>> 1) for the first time.

引用

页数：14

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