作者: V. S. Popov
DOI: 10.1134/1.1493156
关键词:
摘要: The probability W of e + e − pair production from a vacuum in an intense variable electric field generated with powerful optical or X-ray lasers is calculated. Two characteristic ranges are considered: γ ≪ 1 and ≫ 1, where the adiabaticity parameter. shown to increase sharply (at fixed strength F). dependence momentum spectrum electrons positrons on laser pulse shape discussed detail. Numerical calculations were performed for Gaussian envelope some pulsed fields.