Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Decoy-State Quantum Key Distribution with Nonclassical Light Generated
  in a One-dimensional Waveguide   We investigate a decoy-state quantum key distribution (QKD) scheme with a
sub-Poissonian single-photon source, which is generated on demand by scattering
a coherent state off a two-level system in a one-dimensional waveguide. We show
that, compared to coherent state decoy-state QKD, there is a two-fold increase
of the key generation rate. Furthermore, the performance is shown to be robust
against both parameter variations and loss effects of the system.

14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph