Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite resource performance of small satellite-based quantum key
  distribution missions   In satellite-based quantum key distribution (QKD), the number of secret bits
that can be generated in a single satellite pass over the ground station is
severely restricted by the pass duration and the free-space optical channel
loss. High channel loss may decrease the signal-to-noise ratio due to
background noise, reduce the number of generated raw key bits, and increase the
quantum bit error rate (QBER), all of which have detrimental effects on the
output secret key length. Under finite-size security analysis, higher QBER
increases the minimum raw key length necessary for non-zero key length
extraction due to less efficient reconciliation and post-processing overheads.
We show that recent developments in finite key analysis allow three different
small-satellite-based QKD projects CQT-Sat, UK-QUARC-ROKS, and QEYSSat to
produce secret keys even under very high loss conditions, improving on
estimates based on older finite key bounds.

28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg