Instantaneous rest-frame transformation method for temporally induced pair creation
Abstract
We introduce a computational method to determine the rate of the electron-positron pair creation triggered by a time-dependent subcritical external field. It is based on constructing a Lorentz transformation to an instantaneous rest frame, for which the pair-creation rate can be determined by standard techniques. We will discuss the accuracy and efficiency of this method by comparing its predictions with exact time-dependent quantum field theoretical solutions to the Dirac and Klein-Gordon equations for various space-time dependent external fields.
- Publication:
-
Physical Review A
- Pub Date:
- April 2014
- DOI:
- 10.1103/PhysRevA.89.042105
- Bibcode:
- 2014PhRvA..89d2105L
- Keywords:
-
- 12.20.-m;
- 03.30.+p;
- 23.20.Ra;
- 03.70.+k;
- Quantum electrodynamics;
- Special relativity;
- Internal pair production;
- Theory of quantized fields