Circular dichroism in nonlinear electron-positron pair creation

23rd International Laser Physics Workshop

Kamiski, J.Z.^1 ; Krajewska, K.^1 ; Kaminski, J.Z.^1

Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, Pasteura 5, Warszawa

02-093, Poland^1

关键词: Circular dichroism effect;    Differential probabilities;    Electron-positron pair creation;    Laser photons;    Pair production;    Quantum electrodynamics;    Short pulse duration;    X ray photons;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/594/1/012024/pdf
DOI  :  10.1088/1742-6596/594/1/012024

来源: IOP

【 摘 要 】

The trident pair production by X-ray photons in the presence of a powerful laser field is considered in the framework of strong-field quantum electrodynamics. The dependence of differential probability rates of the process on the handedness of circular polarizations of X-ray and laser photons is illustrated. It is revealed that circular dichroism effects are most pronounced for short pulse durations of the driving fields.