Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Designing topological interface states in phononic crystals based on the
  full phase diagrams   The topological invariants of a periodic system can be used to define the
topological phase of each band and determine the existence of topological
interface states within a certain bandgap. Here, we propose a scheme based on
the full phase diagrams, and design the topological interface states within any
specified bandgaps. As an example, here we propose a kind of one-dimensional
phononic crystals. By connecting two semi-infinite structures with different
topological phases, the interface states within any specific bandgap or their
combinations can be achieved in a rational manner. The existence of interface
states in a single bandgap, in all odd bandgaps, in all even bandgaps, or in
all bandgaps, are verified in simulations and experiments. The scheme of full
phase diagrams we introduce here can be extended to other kinds of periodic
systems, such as photonic crystals and designer plasmonic crystals.

8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con