Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Discrimination of Two Noisy Displaced Number States   The quantum discrimination of two non-coherent states draws much attention
recently. In this letter, we first consider the quantum discrimination of two
noiseless displaced number states. Then we derive the Fock representation of
noisy displaced number states and address the problem of discriminating between
two noisy displaced number states. We further prove that the optimal quantum
discrimination of two noisy displaced number states can be achieved by the
Kennedy receiver with threshold detection. Simulation results verify the
theoretical derivations and show that the error probability of on-off keying
modulation using a displaced number state is significantly less than that of
on-off keying modulation using a coherent state with the same average energy.

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The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
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The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
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The categories of this paper are: math
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The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn