Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vanishing spin-Hall current in a diffusive Rashba two-dimensional
  electron system: A quantum Boltzmann equation approach   We present a quantum Boltzmann equation analysis of the spin-Hall effect in a
diffusive Rashba two-dimensional electron system. Within the framework of the
self-consistent Born approximation, we consider the roles of disorder-induced
quasiclassical relaxation, collisional broadening of the quasiparticles, and
the intracollisional field effect in regard to spin-Hall dynamics. We present
an analytical proof that the spin-Hall current vanishes, independently of the
coupling strength, of the quasiparticle broadening, of temperature and of the
specific form of the isotropic scattering potential. A sum relation of the
collision terms in a helicity basis is also examined.

32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex