Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Testing the photon-number statistics of a quantum key distribution light
  source   A commonly held tenet is that lasers well above threshold emit photons in a
coherent state, which follow a Poissonian statistics when measured in photon
number. This feature is often exploited to build quantum-based random number
generators or to derive the secure key rate of quantum key distribution
systems. Hence the photon number distribution of the light source can directly
impact the randomness and the security distilled from such devices. Here, we
propose a method based on measuring correlation functions to experimentally
characterise a light source's photon statistics and use it in the estimation of
a quantum key distribution system's key rate. This promises to be a useful tool
for the certification of quantum-related technologies.

29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
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
19
The categories of this paper are: eess
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga