Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gaussian Entanglement for Quantum Key Distribution from a Single-Mode
  Squeezing Source   We report the suitability of an Einstein-Podolsky-Rosen (EPR) entanglement
source for gaussian continuous-variable quantum key distribution at 1550 nm.
Our source is based on a single continuous-wave squeezed vacuum mode combined
with a vacuum mode at a balanced beam splitter. Extending a recent security
proof, we characterize the source by quantifying the extractable length of a
composable secure key from a finite number of samples under the assumption of
collective attacks. We show that distances in the order of 10 km are achievable
with this source for a reasonable sample size despite the fact that the
entanglement was generated including a vacuum mode. Our security analysis
applies to all states having an asymmetry in the field quadrature variances,
including those generated by superposition of two squeezed modes with different
squeezing strengths.

28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an