Semiclassical Calculation of Photon-Stimulated Schwinger Pair Creation
arXiv:1001.3354 · doi:10.1103/PhysRevD.81.085014
Abstract
We consider the electron-positron pair creation by a photon in an external constant electric field. The presented treatment is based on a purely quasiclassical calculation of the imaginary part of the on-shell photon polarization operator. By using this approach we find the pair production rate for photons with polarization parallel as well as orthogonal to the external electric field in the leading order in the parameter , which has been recently found by other methods. For the orthogonal polarization we also find a new contribution to the rate, which is leading in the ratio of the photon energy to the electron mass . We also reproduce by a purely geometrical calculation the exponential factor in the probability of the stimulated pair creation at arbitrary energy of the photon.
16 pages, 4 figures
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Cited by in corpus (29)
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