Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Properties of spin-polarized impurities -- ferrons, in the unitary Fermi
  gas   A new excitation mode has been predicted to exist in the unitary Fermi gas.
It has a form of a spin-polarized impurity, which was dubbed as ferron. It is
characterized by a closed nodal surface of the pairing field surrounding a
partially spin-polarized superfluid region, where the phase differs by $\pi$.
In this paper, we discuss the effect of temperature on the generation of the
ferron and the adiabaticity of the spin-polarizing potential together with
ferron's ground state properties.

11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys