Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Emulating exceptional-point encirclements using imperfect (leaky)
  photonic components   Non-Hermitian systems have recently attracted significant attention in
photonics. One of the hallmarks of these systems is the possibility of
realizing asymmetric mode switching and omnipolarizer action through the
dynamic encirclement of exceptional points (EP). Here, we offer a new
perspective on the operating principle of these devices, and we theoretically
and experimentally show that asymmetric mode switching and omni-polarizer
action can be easily realized with the same performance and limitations, using
simple configurations that emulate the physics involved in encircling EPs
without the complexity of actual encirclement schemes. The proposed concept of
'encirclement emulators' and our theoretical and experimental results may allow
a better assessment of the limitations, practical potential, and applications
of EP encirclements in non-Hermitian photonics.

33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs