Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superconducting BCS versus Fulde-Ferrell-Larkin-Ovchinnikov states of
  quasiparticles with spin dependent mass and their distinguishability   The first observation of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO)
superconducting state and a subsequent detection of the spin-dependent
effective masses of quasiparticles in the CeCoIn_5 heavy fermion system are
combined into a single theoretical framework. The appearance of the spin-split
masses extends essentially the regime of temperatures and applied magnetic
fields, in which FFLO is observable and thus is claimed to be very important
for the FFLO detectability. We also stress that the quasiparticles composing
Cooper pair become distinguishable in the nonzero field. The analysis is
performed within the Kondo-lattice limit of the finite-U Anderson-lattice model
containing both the mass renormalization and real-space pairing within a single
scheme.

11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph