Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Channel Capacity of a Fiber Optics Communication System:
  perturbation theory   We consider the communication channel given by a fiber optical transmission
line. We develop a method to perturbatively calculate the information capacity
of a nonlinear channel, given the corresponding evolution equation. Using this
technique, we compute the decrease of the channel capacity to the leading order
in the perturbative parameter for fiber optics communication systems.

26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg