Phase effects in laser-induced electron-positron pair creation

摘要

Probability rates of electron-positron pair creation in collisions of a relativistic nucleus with a two-colornlaser field are calculated using the S-matrix approach. The case when both components of the laser field havencommensurate frequencies and comparable strengths is considered. Pronounced interference effects are observednin angular distributions of created particles as well as in the total probability rates of pair production. Theseninterference effects show a significant phase dependence of the pair-creation process.