2005/02/10 by C. Fortmann, H. Reinholz, Fortmann, C. +6
Physics and Astronomy · #Atomic and Molecular Physics #Dust and Plasma Wave Phenomena #FOS: Physical sciences #Laser-Plasma Interactions and Diagnostics #Nuclear Theory (nucl-th) #Plasma Physics (physics.plasm-ph) #nucl-th #physics.plasm-ph
paper · pdf · doi:10.48550/arxiv.physics/0502051
20 pages, 6 figures, submitted to PRE. v2: Eq's. 25, 31 corrected
openalex publication_date 2005/02/10 · arxiv created 2005/03/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The suppression of the bremsstrahlung cross section due to multiple scattering of the emitting electrons is an important effect in dense media (Landau-Pomeranchuk-Migdal effect). Here, we study the emission from a dense, fully-ionized and non-relativistic hydrogen plasma. Using the dielectric approach, we relate optical properties such as emission and absorption to equilibrium force-force correlation functions, which allow for a systematic perturbative treatment with the help of thermodynamic Green functions. By considering self-energy and vertex corrections, medium modifications such as multiple scattering of the emitting electrons are taken into account. Results are presented for the absorption coefficient as a function of the frequency at various densities. It is shown that the modification of the inverse bremsstrahlung due to medium effects becomes more significant in the low frequency and high density region.