Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topology of multipartite non-Hermitian one-dimensional systems   The multipartite non-Hermitian Su-Schrieffer-Heeger model is explored as a
prototypical example of one-dimensional systems with several sublattice sites
for unveiling intriguing insulating and metallic phases with no Hermitian
counterparts. These phases are characterized by composite cyclic loops of
multiple complex-energy bands encircling single or multiple exceptional points
(EPs) on the parametric space of real and imaginary energy. We show the
topology of these composite loops can be quantified by a nonadiabatic cyclic
geometric phase which includes contributions only from the participating bands.
We analytically derive a complete phase diagram with the phase boundaries of
the model. We further examine the connection between encircling of multiple EPs
by complex-energy bands on parametric space and associated topology.

13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci