Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Capacity with energy constraint in coherent state channel   We consider two kind of energy constraints when the output state is a
coherent state. One is a constraint on the total energy during a fixed period;
the other is a constraint on the total energy for a single code. The first
setting can be easily dealt with by using the conventional capacity formula.
The second setting requires the general capacity formula for a
classical-quantum channel.

5
The categories of this paper are: gr-qc
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The categories of this paper are: q-bio
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The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat