Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cooper pairs localization in tree-like networks of superconducting
  islands   We study inhomogeneous Cooper pairs distribution and localization effects in
tree-like networks of superconducting islands coupled via Josephson weak links.
Using a generalized Feynman's approach, reminiscent of the Bose-Hubbard model,
we demonstrate that the Cooper pairs fraction which localizes on a specific
network's island is limited by the network topology and, if present, by the
repulsive interaction. These findings contribute to clarify the interplay
between confinement effects induced by the network's topology and interaction
and shed some light on recent experiments dealing with networks of Josephson
junctions.

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The categories of this paper are: hep-ph
3
The categories of this paper are: physics
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys