Electron-positron pair production in an arbitrary polarized ultrastrong laser field

Abstract

Electron-positron pair production in an arbitrary polarized ultrastrong laser field is investigated in the first order perturbation approximation in which the Volkov states are used for convenient calculation of scattering amplitude and cross section. It is found surprisingly that the optimal pair production depends strongly on the polarization. For some cases of field parameters, the optimal field is elliptically polarized or evenly circularly polarized one, rather than the usual linear polarization as indicated by previous works. Some insights into pair generation are given and some interesting unexpected features are also discussed briefly.

20 pages, 10 figures

References in corpus (4)

• Worldline Instantons II: The Fluctuation Prefactor
• Complete QED theory of multiphoton trident pair production in strong laser fields
• Muon pair creation from positronium in a linearly polarized laser field
• Bound-free ${\mathbf{e}}^{+}{\mathbf{e}}^{-}$ pair creation with a linearly polarized laser field and a nuclear field

Cited by in corpus (5)

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• Pair production in inhomogeneous electric fields with phase modulation
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