Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum metric dipole and non-reciprocal bulk plasmons in
  parity-violating magnets   The optical response of metals is often dominated by plasmonic resonances -
the collective oscillations of an interacting electron liquid. Here we unveil a
new class of plasmons that arise in a wide range of parity violating magnetic
metals. In these materials, broken time reversal and parity symmetries work
together with electron-electron interactions to produce intrinsically
non-reciprocal bulk plasmons wherein the frequencies of forward and backward
moving modes are split. Strikingly, when interactions are strong we find
plasmonic non-reciprocity is dominated by the quantum metric dipole that
characterizes the real-space profile of Bloch electron wavepackets; in this
regime, the quantum metric dipole can give rise to strongly non-reciprocal
collective dynamics even when the electronic group velocity is only weakly
asymmetric. We anticipate these intrinsic non-reciprocal bulk plasmons can be
realized in a wide range of parity violating magnets including twisted bilayer
graphene heterostructures where quantum geometric quantities can achieve large
values.

1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci