Skip to main content
Article
KINETIC-EQUATION FOR DILUTE, SPIN-POLARIZED QUANTUM-SYSTEMS
JOURNAL DE PHYSIQUE
  • JW JEON
  • WJ Mullin
Publication Date
1988
Abstract

A kinetic equation, which includes the effects of degeneracy, is derived for dilute, polarized systems by the Green's function method of Kadanoff and Baym. When the Born approximation is used for the self-energy, the equation reduces to a result due to Silin. In the Boltzmann limit our result is equivalent to the equation of Lhuillier and Laloë, with the addition of a mean-field drift term analogous to that appearing in the Landau-Silin equation. Our kinetic equation is used to derive an expression for the transverse spin-diffusion relaxation time, τ>, for a Fermi system. In the Boltzmann and low-polarization limits τ> reduces to τ ∥, the longitudinal relaxation time. However, in a highly polarized degenerate system τ> can be very much shorter than τ ∥.

Disciplines
Comments
The published version is located at http://jphys.journaldephysique.org/index.php?option=com_article&access=standard&Itemid=129&url=/articles/jphys/ref/1988/10/jphys_1988__49_10_1691_0/jphys_1988__49_10_1691_0.html
Pages
1691-1706
Citation Information
JW JEON and WJ Mullin. "KINETIC-EQUATION FOR DILUTE, SPIN-POLARIZED QUANTUM-SYSTEMS" JOURNAL DE PHYSIQUE Vol. 49 Iss. 10 (1988)
Available at: http://works.bepress.com/william_mullin/49/