Journal
PHYSICAL REVIEW A
Volume 87, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.87.042117
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Funding
- Cluster-of-Excellence Munich-Centre for Advanced Photonics (MAP)
- [DFG]
- [FOR1048]
- [RU633/1-1]
- [SFB TR18]
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An electromagnetic pair-creation cascade seeded by an electron or a photon in an intense plane wave interacts in a complicated way with the external field. Many simulations neglect the vector nature of photons by including their interaction using unpolarized cross sections. After deriving rates for the tree-level processes of nonlinear Compton scattering and pair creation with an arbitrary linearly polarized photon in a constant crossed field, we present results of numerical simulations that include the photon's vector nature. The simulations of seed electrons in a rotating electric field of optical frequency on the one hand support the approximation of using unpolarized cross sections for tree-level processes, which predicts the same number of created particles when using polarized cross section to within around 5%. On the other hand, these simulations show that when the polarization of the photon can be influenced by its environment, the asymmetry in the polarization distribution could be used to significantly increase the rates of each process. DOI: 10.1103/PhysRevA.87.042117
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