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Quantum processes in the field of a two-frequency circularly polarized plane electromagnetic wave
Phys. Rev. E 57, 2276 – Published 1 February, 1998
DOI: https://doi.org/10.1103/PhysRevE.57.2276
Abstract
We solve Dirac’s equation for an electron in the field of a two-frequency plane electromagnetic wave, deriving general formulas for the probabilities of radiation of an electromagnetic wave by the electron, and for the probabilities for pair production by a photon when the two-frequency wave is circularly polarized. In contrast to the case of a monochromatic-plane electromagnetic wave, when an electron is in the field of a two-frequency circularly polarized wave, the emission rates of various “biharmonic photons” are affected by interference between the two waves. When a high-energy photon is in such a field, similar interference effects arise in the process of pair production.
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