Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Continuous-variable quantum key distribution with Gaussian source noise   Source noise affects the security of continuous-variable quantum key
distribution (CV QKD), and is diffcult to analyze. We propose a model to
characterize Gaussian source noise through introducing a neutral party (Fred)
who induces the noise with a general unitary transformation. Without knowing
Fred's exact state, we derive the security bounds for both reverse and direct
reconciliations and show that the bound for reverse reconciliation is tight.

14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci