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Population kinetics in turbulent plasmas: The role of non-Markovian fluctuations |
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| Authors: | J. Rosato F. CatoireY. Marandet A. MekkaouiH. Capes M. KoubitiR. Stamm M.B. KadomtsevM.G. Levashova V.S. LisitsaF.B. Rosmej |
| Affiliation: | a Laboratoire PIIM, UMR 6633 Université de Provence/CNRS, Centre de St.-Jérôme, Case 232, F-13397 Marseille Cedex 20, France b Laboratoire CELIA, UMR 5107 Université Bordeaux 1/CNRS, 351 Cours de la libération, F-33405 Talence Cedex, France c ITP, Russian Research Center “Kurchatov Institute”, Moscow, Russia d Sorbonne Universités, Piere et Marie Curie UPMC, UMR 7605, LULI, Case 128, F-75252 Paris Cedex 05, France e Ecole Polytechnique, LULI, Physique Atomique dans les Plasmas Denses, F-91228 Palaiseau, France |
| Abstract: | A novel approach to the modeling of atomic populations in turbulent plasmas is applied to ionization-recombination balance calculations. Fluctuations of the fluid parameters are retained using a time-dependent statistical approach, suitable for cases where the turbulence characteristic times are of the same order as or smaller than the typical atomic relaxation times. We show that the populations are sensitive to the shape of the autocorrelation function of the fluctuations. An illustration is proposed through an ideal two-level system forced by non-Markovian temperature fluctuations. |
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