Speaker
Description
When a charged particle traverses an electromagnetic field, the particle and the field exchange energy and momentum. In sufficiently strong fields, such as those produced by modern petawatt class laser systems, this exchange has an appreciable effect on particle dynamics and, thus, cannot be ignored. This subsequent dynamical effect is known as the radiation reaction. The aim of this research is to develop analytical, accurate, and computationally feasible expressions for the scattered radiation and electron spectra in these strong-field electron-photon interactions, in particular, in nonlinear inverse Thomson and Compton scattering. In the the classical model, we utilize the Landau-Lifshitz force law to describe the dynamics of the electron and further to extract both the scattered radiation and electron spectra. In the quantum model, we consider the scattering of a coherent state describing a laser pulse by a spectral describing an electron beam. Photon and electron number density operators then give the expected spectra of the scattered states. This latter approach is advantageous in that it allows for realistic descriptions of a laser pulse with nontrivial transverse extent.
Funding Agency
Jefferson Science Associates
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