Fluid moment hierarchy equations derived from gauge invariant quantum kinetic theory
2010 (English)In: New Journal of Physics, ISSN 1367-2630, Vol. 12, 073027-073039 p.Article in journal (Refereed) Published
The gauge invariant electromagnetic Wigner equation is taken as the basis of a fluid-like system describing quantum plasmas, derived from the moments of the gauge invariant Wigner function. The use of the standard, gauge-dependent Wigner function is shown to produce inconsistencies if a direct correspondence principle is applied. The propagation of linear transverse waves is considered and it is shown to be in agreement with the kinetic theory in the long-wavelength approximation, provided that an adequate closure is chosen for the macroscopic equations. A general recipe to solve the closure problem is suggested.
Place, publisher, year, edition, pages
IOP - Institute of Physics , 2010. Vol. 12, 073027-073039 p.
plasma kinetic equations, electromagnetic waves
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-37365DOI: 10.1088/1367-2630/12/7/073027ISI: 000281232700006OAI: oai:DiVA.org:umu-37365DiVA: diva2:359542