51 / 2020-01-17 09:49:05

Quantum Mechanisms of Particle Acceleration through Nonlinear Compton Scattering and Nonlinear Breit-Wheeler Process in Coherent Photon Dominated Regime

strong field qed,ultra intense lasers,quantum mechanisms of particle acceleration

全体主题 > 高能量密度物理

Electric force is presently the only means in laboratory to accelerate charged particles to high energies, corresponding acceleration processes are classical and continuous. Here we report on how to accelerate electrons and positrons to high energies using ultra intense lasers (UIL) through two quantum processes, nonlinear Compton scattering and nonlinear Breit-Wheeler process. In the coherent photon dominated regime of these two processes, the former can effectively boost electrons/positrons and the latter can produce high energy electrons and positrons with low energy γ photons. The energy needed for such quantum acceleration (QA) is transferred from large numbers of coherent laser photons through the two quantum processes. QA also collimate the generated high energy electrons and positrons along the laser axis and the effective acceleration distance is of microscopic dimensions. Proof of principle QA experiment can be performed on 10-100 petawatt (PW) scale lasers which are in building or planning.