Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gapless electronic topology without free-electron counterpart   The interplay between interactions and topology in quantum materials is of
extensive current interest. For the gapless case, whether and how electron
correlations can drive topological states that are not adiabatically connected
to a noninteracting system is an open and pressing problem. Here we study a
periodic Anderson model in several lattices, with strongly correlated electrons
coupled to two channels of conduction electrons. Strong correlations are
demonstrated to cooperate with lattice symmetry to produce topological phases
that have no Landau quasiparticles and show strange-metal behavior. We
characterize the electronic topology in terms of surface states and valley and
spin Hall conductivities, and identify candidate materials to realize the
proposed phases. Our work opens a door to a variety of gapless topological
phases without free-electron counterpart in a broad range of strongly
correlated metals.

27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph