Path Integral Formalism for Line Broadening in Plasmas: Lyman‐α case |
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| Authors: | N Bedida M T Meftah M Difallah |
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| Institution: | 1. Department of Physics, Faculty of Sciences, LABTHOP Laboratory, El‐Oued University, 39000, Algeria;2. LRPPS Laboratory, University of Ouargla, 30000 Algeria;3. Department of Physics, Faculty of Mathematics and Matter Sciences, University of Ouargla, 30000, Algeria |
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| Abstract: | Using the path integral formalism, the fine structure and dynamics effects are taken into account for the study of the spectral line broadening in plasmas. A compact expression of the dipolar autocorrelation function (DAF) for an emitter in the plasma is derived for Lyman alpha lines with fine structure. The expression of the DAF takes into account the dynamics effects, which are represented by the time autocorrelation function of the electric microfield. The spectral line for the Lyman‐alpha case has been obtained in a compact form and plotted in the quasi‐static approximation and compared to a line obtained by a simulation. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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| Keywords: | Propagator path integral dipolar autocorrelation function spectral line |
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