Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Proposed experiment: out-of-plane nodal lines in Sr$_{2}$RuO$_{4}$   Since the original proposal of an unconventional chiral order parameter in
the ruthenate perovskite superconductor Sr$_{2}$RuO$_{4}$, much attention has
been given to the possibility of out-of-plane nodal lines on the predominant
$\gamma$ cylindrical Fermi surface given evidence for low-lying quasiparticle
excitations in this material. Here I propose a tunneling spectroscopy
experiment to determine whether such nodal lines in fact exist.

37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys