Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shape-preserving beam transmission through non-Hermitian disordered
  lattices   We investigate the propagation of Gaussian beams through optical waveguide
lattices characterized by correlated non-Hermitian disorder. In the framework
of coupled mode theory, we demonstrate how the imaginary part of the refractive
index needs to be adjusted to achieve perfect beam transmission, despite the
presence of disorder. Remarkably, the effects of both diagonal and off-diagonal
disorder in the waveguides and their couplings can be efficiently eliminated by
our non-Hermitian design. Waveguide arrays thus provide an ideal platform for
the experimental realization of non-Hermitian phenomena in the context of
discrete photonics.

11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin