Low-temperature spin-diffusion in a spin-polarized Fermi gas
GOLOSOV, D. I.
RUCKENSTEIN, A. E.
MetadataShow full item record
Citation (published version)D.I. GOLOSOV, A.E. RUCKENSTEIN. 1995. "LOW-TEMPERATURE SPIN-DIFFUSION IN A SPIN-POLARIZED FERMI GAS." PHYSICAL REVIEW LETTERS, Volume 74, Issue 9, pp. 1613 - 1616 (4). https://doi.org/10.1103/PhysRevLett.74.1613
We present a finite temperature calculation of the transverse spin-diffusion coefficient D⊥ in a dilute degenerate Fermi gas, in the presence of a small external magnetic field H. While the longitudinal diffusion coefficient displays the conventional Fermi-liquid dependence, D∥∝T^−2, the behavior of D⊥ shows three separate regimes: (a) D⊥∼H^−2 for T≪H, (b) D⊥∼T^−2, D⊥D∥≠1 for T≫H and large spin-rotation parameter ξ≫1, and (c) D⊥=D∥∝T^−2 for T≫H and ξ≪1. Our results are qualitatively consistent with the experimental data in weakly spin-polarized ^3He and ^3He- ^4He mixtures.
Showing items related by title, author, creator and subject.
Golosov, D. I.; Ruckenstein, A. E. (SPRINGER/PLENUM PUBLISHERS, 1998-08-01)We re-examine the calculation of the transverse spin-diffusion coefficient in a dilute degenerate spin-polarized Fermi gas, for the case of s-wave scattering. The special feature of this limit is that the dependence of the ...
Lane, Kenneth D. (ELSEVIER SCIENCE BV, 1995-09-14)I discuss production and detection at the Tevatron collider of pairs of light (MπT = 100–200GeV) color-singlet technipions that are expected in all nonminimal models of technicolor. Gluon fusion production rates can be as ...
Lane, Kenneth; Eichten, Estia (Elsevier Science BV, 1995-06-15)We construct a prototype of topcolor-assisted technicolor in which, although both top and bottom quarks acquire some mass from extended technicolor, strong U(1) couplings of technifermions are isospin symmetric and all ...