2014
DOI: 10.1103/physreve.89.033102
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Dielectric function of a collisional plasma for arbitrary ionic charge

Abstract: A simple model for the dielectric function of a completely ionized plasma with an arbitrary ionic charge, that is valid for long-wavelength high-frequency perturbations is derived using an approximate solution of a linearized Fokker-Planck kinetic equation for electrons with a Landau collision integral. The model accounts for both the electron-ion collisions and the collisions of the subthermal (cold) electrons with thermal ones. The relative contribution of the latter collisions to the dielectric function is … Show more

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Cited by 8 publications
(16 citation statements)
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“…A recent model by Nersisyan et al [84] from the point of view of the sum-rule approach does not go beyond the Drude-Lorentz model, i.e., it accounts for the zeroth sum rule only [see (6) and Sec. II A].…”
Section: Discussionmentioning
confidence: 99%
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“…A recent model by Nersisyan et al [84] from the point of view of the sum-rule approach does not go beyond the Drude-Lorentz model, i.e., it accounts for the zeroth sum rule only [see (6) and Sec. II A].…”
Section: Discussionmentioning
confidence: 99%
“…[83(b)]. The latter model of [84] contains two adjustment parameters and it is curious that in that work the interpolation with the static conductivity is also involved, like we do when we construct the Nevanlinna parameter function of the method of moments on the basis of an interpolation between the Perel'-Eliashberg asymptotic form of the two-component plasma dielectric function and its static conductivity. Finally, the data on the molecular-dynamics simulations of the classical stopping power [85] is interesting from a methodological point of view, but the thermodynamic conditions modeled in this work actually do not correspond to those of classical plasmas.…”
Section: Discussionmentioning
confidence: 99%
“…A slightly more complex, but still elementary approach is based on an approximate solution of the Fokker-Planck equation as proposed in Ref. [65]. This permits to take into account not only the contribution of electron-ion collisions to the DF ε(ω) (as in the case of relaxation time approximation), but also of electron-electron collisions.…”
Section: Dielectric Function From Kinetic Theory a Effective Collisio...mentioning
confidence: 99%
“…This permits to take into account not only the contribution of electron-ion collisions to the DF ε(ω) (as in the case of relaxation time approximation), but also of electron-electron collisions. In accordance with [65], the permittivity of plasmas due to intra-band transitions is expressed as…”
Section: Dielectric Function From Kinetic Theory a Effective Collisio...mentioning
confidence: 99%
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