Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-Hermitian band topology with generalized inversion symmetry   Non-Hermitian skin effects and exceptional points are topological phenomena
characterized by integer winding numbers. In this study, we give methods to
theoretically detect skin effects and exceptional points by generalizing
inversion symmetry. The generalization of inversion symmetry is unique to
non-Hermitian systems. We show that parities of the winding numbers can be
determined from energy eigenvalues on the inversion-invariant momenta when
generalized inversion symmetry is present. The simple expressions for the
winding numbers allow us to easily analyze skin effects and exceptional points
in non-Hermitian bands. We also demonstrate the methods for (second-order) skin
effects and exceptional points by using lattice models.

8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th