Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the effect of quantum phase-slips in a Josephson Junction
  chain   We investigate experimentally the physics of quantum phase slips in
one-dimensional Josephson Junction chains. These quantum phase-slips are
induced by quantum phase fluctuations occurring on single junctions of the
chain. In our experiment we can tune the strength of these fluctuations as each
chain junction is realized in form of a SQUID leading to tunable Josephson
coupling. We determine the ground state of the chain via switching current
measurements of the chain shunted by a large Josephson junction. Our results
can be well fitted with a tight binding Hamiltonian taking into account quantum
phase-slips.

17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga