Microscopic nonlinear relativistic quantum theory of absorption of powerful x-ray radiation in plasma

H. K. Avetissian, A. G. Ghazaryan, H. H. Matevosyan, and G. F. Mkrtchian
Phys. Rev. E 92, 043103 – Published 7 October 2015

Abstract

The microscopic quantum theory of plasma nonlinear interaction with the coherent shortwave electromagnetic radiation of arbitrary intensity is developed. The Liouville–von Neumann equation for the density matrix is solved analytically considering a wave field exactly and a scattering potential of plasma ions as a perturbation. With the help of this solution we calculate the nonlinear inverse-bremsstrahlung absorption rate for a grand canonical ensemble of electrons. The latter is studied in Maxwellian, as well as in degenerate quantum plasma for x-ray lasers at superhigh intensities and it is shown that one can achieve the efficient absorption coefficient in these cases.

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  • Received 8 June 2015

DOI:https://doi.org/10.1103/PhysRevE.92.043103

©2015 American Physical Society

Authors & Affiliations

H. K. Avetissian1, A. G. Ghazaryan1, H. H. Matevosyan2, and G. F. Mkrtchian1

  • 1Centre of Strong Fields Physics, Yerevan State University, 1 A. Manukian, Yerevan 0025, Armenia
  • 2Plasma Theory Group, Institute of Radiophysics and Electronics, NAS RA, 0203 Ashtarak, Armenia

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Issue

Vol. 92, Iss. 4 — October 2015

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