Pulse shape effects on the electron-positron pair production in strong laser fields
Pulse shape effects on the electron-positron pair production in strong laser fields
The pair-production process in the presence of strong linearly polarized laser fields with a subcycle structure is considered. Laser pulses with different envelope shapes are examined by means of a nonperturbative numerical approach. As generic cases, we analyze two different ``flat'' envelope shapes and two shapes without a plateau as …