Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum mechanics of superconducting nanowires   In a short superconducting nanowire connected to bulk superconducting leads,
quantum phase slips behave as a system of linearly (as opposed to
logarithmically) interacting charges. This system maps onto quantum mechanics
of a particle in a periodic potential. We show that, while the state with a
high density of phase slips is not a true insulator (a consequence of Josephson
tunneling between the leads), for a range of parameters it behaves as such down
to unobservably small temperatures. We also show that quantum phase slips give
rise to multiple branches (bands) in the energy-current relation and to an
interband ("exciton") mode.

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The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex