Dispersion relations for electromagnetic waves in a dense magnetized plasma

P.K. Shukla, L. Stenflo

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Dispersion relations for elliptically polarized extraordinary as well as linearly polarized ordinary electromagnetic waves propagating across an external magnetic field in a dense magnetoplasma are derived, taking into account the combined effects of the quantum electrodynamical (QED) field, as well as the quantum forces associated with the Bohm potential and the magnetization energy of the electrons due to the electron-1/2 spin effect. The QED (vacuum polarization) effects, which contribute to the nonlinear electron current density, modify the refractive index. Our results concern the propagation characteristics of perpendicularly propagating high-frequency electromagnetic waves in dense astrophysical objects (e.g. neutron stars and magnetars), as well as the next-generation intense laser-solid density plasma interaction experiments and quantum free-electron laser schemes.
LanguageEnglish
Pages719-723
Number of pages4
JournalJournal of Plasma Physics
Volume74
Issue number6
DOIs
Publication statusPublished - Dec 2008

Fingerprint

dense plasmas
electromagnetic radiation
plasma interaction experiment
magnetars
electrons
free electrons
neutron stars
current density
magnetization
vacuum
propagation
polarization

Keywords

  • electromagnetic waves
  • dense magnetixed plasma

Cite this

Shukla, P.K. ; Stenflo, L. / Dispersion relations for electromagnetic waves in a dense magnetized plasma. In: Journal of Plasma Physics. 2008 ; Vol. 74, No. 6. pp. 719-723.
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Dispersion relations for electromagnetic waves in a dense magnetized plasma. / Shukla, P.K.; Stenflo, L.

In: Journal of Plasma Physics, Vol. 74, No. 6, 12.2008, p. 719-723.

Research output: Contribution to journalArticle

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AU - Stenflo, L.

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AB - Dispersion relations for elliptically polarized extraordinary as well as linearly polarized ordinary electromagnetic waves propagating across an external magnetic field in a dense magnetoplasma are derived, taking into account the combined effects of the quantum electrodynamical (QED) field, as well as the quantum forces associated with the Bohm potential and the magnetization energy of the electrons due to the electron-1/2 spin effect. The QED (vacuum polarization) effects, which contribute to the nonlinear electron current density, modify the refractive index. Our results concern the propagation characteristics of perpendicularly propagating high-frequency electromagnetic waves in dense astrophysical objects (e.g. neutron stars and magnetars), as well as the next-generation intense laser-solid density plasma interaction experiments and quantum free-electron laser schemes.

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