Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topologically stable gapless phases in nonsymmorphic superconductors   We study topological stability of nodes in nonsymmorphic superconductors
(SCs). In particular, we demonstrate that line nodes in nonsymmirphic
odd-parity SCs are protected by the interplay between topology and
nonsymmorphic symmetry. As an example, it is shown that the
$E_{2u}$-superconducting state of UPt$_3$ hosts the topologically stable line
node at the Brillouin zone face. Our theory indicates that the existence of
spin-orbit coupling is essential for protecting such a line node, complementing
the Norman's group theory argument. Developing the topological arguments, we
also argue generalization to point nodes and to other symmetry cases beyond the
group theory arguments.

35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn