Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inelastic scattering of a photon by a quantum phase-slip   Spontaneous decay of a single photon is a notoriously inefficient process in
nature irrespective of the frequency range. We report that a quantum phase-slip
fluctuation in high-impedance superconducting waveguides can split a single
incident microwave photon into a large number of lower-energy photons with a
near unit probability. The underlying inelastic photon-photon interaction has
no analogs in non-linear optics. Instead, the measured decay rates are
explained without adjustable parameters in the framework of a new model of a
quantum impurity in a Luttinger liquid. Our result connects circuit quantum
electrodynamics to critical phenomena in two-dimensional boundary quantum field
theories, important in the physics of strongly-correlated systems. The photon
lifetime data represents a rare example of verified and useful quantum
many-body simulation.

10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg