Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A novel search for high-frequency gravitational waves with low-mass
  axion haloscopes   Gravitational waves (GWs) generate oscillating electromagnetic effects in the
vicinity of external electric and magnetic fields. We discuss this phenomenon
with a particular focus on reinterpreting the results of axion haloscopes based
on lumped-element detectors, which probe GWs in the 100 kHz-100 MHz range.
Measurements from ABRACADABRA and SHAFT already place bounds on GWs, although
the present strain sensitivity is weak. However, we demonstrate that the
sensitivity scaling with the volume of such instruments is significant - faster
than for axions - and so rapid progress will be made in the future. With no
modifications, DMRadio-m$^3$ will have a GW strain sensitivity of $h \sim
10^{-20}$ at 200 MHz. A simple modification of the pickup loop used to readout
the induced magnetic flux can parametrically enhance the GW sensitivity,
particularly at lower frequencies.

1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat