The Polarization Response Function and the Dielectric Permittivity of a Plasma

We give a simple direct derivation of the polarization response function h for linear electrostatic excitations of a plasma (without magnetic field) considering the effect of a percussion on the electrons. The physical meaning of the procedure is discussed, thus bringing into light basic facts of th...

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Detalles Bibliográficos
Autores principales:	Gnavi, G., Gratton, F.
Formato:	JOUR
Materias:	DIELECTRIC PERMITTIVITY POLARIZATION RESPONSE FUNCTIONS PLASMAS
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00933813_v12_n3_p223_Gnavi
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_00933813_v12_n3_p223_Gnavi2023-10-03T14:55:25Z The Polarization Response Function and the Dielectric Permittivity of a Plasma Gnavi, G. Gratton, F. DIELECTRIC PERMITTIVITY POLARIZATION RESPONSE FUNCTIONS PLASMAS We give a simple direct derivation of the polarization response function h for linear electrostatic excitations of a plasma (without magnetic field) considering the effect of a percussion on the electrons. The physical meaning of the procedure is discussed, thus bringing into light basic facts of the plasma dielectric behavior. The result h = ω2pfo(x/t) (where fo is the electron distribution function in velocity space and ωp the plasma frequency) is obtained without passing through the Vlasov-Poisson equations as in the standard theory. We show that the equivalence between the present method and the classic Landau analysis rests on properties of the Fourier transform applied on velocity space. © 1984 IEEE. Fil:Gratton, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00933813_v12_n3_p223_Gnavi
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	DIELECTRIC PERMITTIVITY POLARIZATION RESPONSE FUNCTIONS PLASMAS
spellingShingle	DIELECTRIC PERMITTIVITY POLARIZATION RESPONSE FUNCTIONS PLASMAS Gnavi, G. Gratton, F. The Polarization Response Function and the Dielectric Permittivity of a Plasma
topic_facet	DIELECTRIC PERMITTIVITY POLARIZATION RESPONSE FUNCTIONS PLASMAS
description	We give a simple direct derivation of the polarization response function h for linear electrostatic excitations of a plasma (without magnetic field) considering the effect of a percussion on the electrons. The physical meaning of the procedure is discussed, thus bringing into light basic facts of the plasma dielectric behavior. The result h = ω2pfo(x/t) (where fo is the electron distribution function in velocity space and ωp the plasma frequency) is obtained without passing through the Vlasov-Poisson equations as in the standard theory. We show that the equivalence between the present method and the classic Landau analysis rests on properties of the Fourier transform applied on velocity space. © 1984 IEEE.
format	JOUR
author	Gnavi, G. Gratton, F.
author_facet	Gnavi, G. Gratton, F.
author_sort	Gnavi, G.
title	The Polarization Response Function and the Dielectric Permittivity of a Plasma
title_short	The Polarization Response Function and the Dielectric Permittivity of a Plasma
title_full	The Polarization Response Function and the Dielectric Permittivity of a Plasma
title_fullStr	The Polarization Response Function and the Dielectric Permittivity of a Plasma
title_full_unstemmed	The Polarization Response Function and the Dielectric Permittivity of a Plasma
title_sort	polarization response function and the dielectric permittivity of a plasma
url	http://hdl.handle.net/20.500.12110/paper_00933813_v12_n3_p223_Gnavi
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The Polarization Response Function and the Dielectric Permittivity of a Plasma

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