Spin Transport in a Quantum Wire
Strongly Correlated Electrons
2009-11-07 v1
Abstract
We study the effect of electron-electron backscattering interactions on spin transport in a quantum wire. Even if these interactions have no significant effect on charge transport, they strongly influence the transport of spin. We use the quantum Boltzmann equation in the collision approximation to derive equations of motion for spin current and magnetization. In the limit of small perturbations from equilibrium, we explain the existence of `precessional' and `diffusive' behaviors. We also discuss the low-temperature non-linear decay of an uniform spin current outside the hydrodynamic regime.
Cite
@article{arxiv.cond-mat/0106456,
title = {Spin Transport in a Quantum Wire},
author = {Cristina Bena and Leon Balents},
journal= {arXiv preprint arXiv:cond-mat/0106456},
year = {2009}
}
Comments
10 pages, 5 figures, REVTEX