Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Random groups in the optical waveguides theory   We propose a new approach to the mathematical description of light
propagation in a single-mode fiber light-guide (SMFLG) with random
inhomogeneities. We investigate statistics of complex amplitudes of the
electric field of light wave by methods of the random group theory. We have
analyzed the behavior of the coherence matrix of a monochromatic light wave and
the polarization degree of a nonmonochromatic radiation in SMFLG with random
inhomogeneities as the length of the fiber tends to infinity; in particular, we
prove that limit polarization degree is equal to zero.

18
The categories of this paper are: econ
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat