Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-sensitivity bio-sensor based on the real-splitting indirectly
  coupled Anti-Parity time symmetric WGMs   Detecting the size of single nanoparticle with high precision is crucial to
understanding the characteristic of the nanoparticle. In this paper, we
research the single particle detection based on the Anti-parity time symmetric
(APT) indirectly coupled WGMs. The results show that the Anti-parity time
symmetric WGM nanoparticle sensor exhibits giant enhancement in frequency
splitting compared with single WGM sensor, when the system operating at
exceptional point (EP). With respect to the parity-time symmetric nanoparticle
sensor, our research exhibits a real eigenfrequency splitting, which can be
directly detected.

37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol