Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nth power root topological phases in Hermitian and non-Hermitian systems   Constructing new topological phases is very important in both Hermitian and
non-Hermitian systems because of their potential applications. Here we propose
theoretically and demonstrate a general scheme experimentally to construct Nth
power root (NPR) topological phases. Such a scheme is not only suitable for
Hermitian systems, but also non-Hermitian systems. It is found that the robust
degree of edge state in the Hermitian system becomes stronger and stronger with
the increase of N. It tends to be a strongly surface localized form when N is
large enough. In the non-Hermitian system, the skin effect becomes more
apparent, and it approaches the ideal situation with the increase of N. This
means that edge states and skin effects can be observed by taking different N.
This scheme has been proved experimentally by designing circuits. Our work
opens up a new way to engineer topological states according to the
requirements, which is very important for developing topologically protected
devices, such as topology sensing, switches, and so on.

17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat