Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A novel test of Lorentz violation in the photon sector with an LC
  circuit   In the presence of an external magnetic field, the Carroll-Field-Jackiw term
introduces a displacement current proportional to the Lorentz-violating
background that induces a time-dependent magnetic field. Axion-like particles
or hidden photons could generate an analogous signal, potentially detectable
with the set-up suggested by Sikivie, Tanner and Sullivan - a sensitive
magnetometer coupled to a superconducting LC circuit. We show that a similar
set-up, but with an externally driven pick-up loop whose area varies
harmonically at $\sim$ Hz, can be used to probe the spatial components of the
Lorentz-violating background to the level of $\lesssim 10^{-31}$ GeV. This is
eight orders of magnitude more sensitive than previous laboratory-based limits.

10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph