Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Continuous variable quantum key distribution in non-Markovian channels   We address continuous variable quantum key distribution (QKD) in
non-Markovian lossy channels and show how the non-Markovian features may be
exploited to enhance security and/or to detect the presence and the position of
an eavesdropper along the transmission line. In particular, we suggest a
coherent states QKD protocol which is secure against individual attacks for
arbitrarily low values of the overall transmission line. Our scheme relies on
specific non-Markovian properties, and cannot be implemented in ordinary
Markovian channels characterized by uniform losses.

23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
2
The categories of this paper are: math