Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetization of a homogeneous two dimensional fermion gas with
  repulsive contact interaction and Rashba spin-orbit potential   The z axis magnetization of a two dimensional electron gas with contact
repulsive interaction and in presence of a Rashba potential is computed by
means of quantum field theory at second order. A striking effect of the pure
Rashba interaction is that of hindering spin alignment along the z direction.
Evidence of transition at critical repulsive interaction coupling constant is
still found. The degree of magnetization, however, shows a clear dependence on
the spin-orbit interaction strength. Furthermore, the transition to magnetized
state appears to be smoothed by the presence of the Rashba interaction.

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The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
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The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph