Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modeling a measurement-device-independent quantum key distribution
  system   We present a detailed description of a widely applicable mathematical model
for quantum key distribution (QKD) systems implementing the
measurement-device-independent (MDI) protocol. The model is tested by comparing
its predictions with data taken using a proof-of-principle, time-bin
qubit-based QKD system in a secure laboratory environment (i.e. in a setting in
which eavesdropping can be excluded). The good agreement between the
predictions and the experimental data allows the model to be used to optimize
mean photon numbers per attenuated laser pulse, which are used to encode
quantum bits. This in turn allows optimization of secret key rates of existing
MDI-QKD systems, identification of rate-limiting components, and projection of
future performance. In addition, we also performed measurements over deployed
fiber, showing that our system's performance is not affected by
environment-induced perturbations.

17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess