Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin-dependent conductance statistics in systems with spin-orbit
  coupling   Spin-dependent partial conductances are evaluated in a tight-binding
description of electron transport in the presence of spin-orbit (SO) couplings,
using transfer-matrix methods. As the magnitude of SO interactions increases,
the separation of spin-switching channels from non-spin-switching ones is
gradually erased. Spin-polarised incident beams are produced by including a
Zeeman-like term in the Hamiltonian. The exiting polarisation is shown to
exhibit a maximum as a function of the intensity of SO couplings. For moderate
site disorder, and both weak and strong SO interactions, no evidence is found
for a decay of exiting polarisation against increasing system length. With very
low site disorder and weak SO couplings a spin-filter effect takes place, as
polarisation {\em increases} with increasing system length.

20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th