Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ground-State Properties of Extended Two-Channel Kondo Model   Ground-state properties are examined for an extended two-channel Kondo model
where the Hilbert space of the localized states is extended to include a
singlet state in addition to the doublet states. By means of zero-th order
variational wavefunctions with different symmetries, which are associated with
the non-Fermi-liquid and the Fermi-liquid ground states, we demonstrate that
the channel exchange coupling via the localized singlet state stabilizes the
Fermi-liquid wavefunction. The ground-state phase diagrams, which are in
qualitative agreement with the previous study performed by Koga and Shiba, are
obtained. The comparison to the structure of the resultant wavefunctions
suggests that a unique non-Fermi-liquid (Fermi-liquid) fixed point exists,
irrespective of the localized ground state.

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The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
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The categories of this paper are: chem-ph
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph