Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dimension Reduction in Quantum Key Distribution for Continuous- and
  Discrete-Variable Protocols   We develop a method to connect the infinite-dimensional description of
optical continuous-variable quantum key distribution (QKD) protocols to a
finite-dimensional formulation. The secure key rates of the optical QKD
protocols can then be evaluated using recently-developed reliable numerical
methods for key rate calculations. We apply this method to obtain asymptotic
key rates for discrete-modulated continuous-variable QKD protocols, which are
of practical significance due to their experimental simplicity and potential
for large-scale deployment in quantum-secured networks. Importantly, our
security proof does not require the photon-number cutoff assumption relied upon
in previous works. We also demonstrate that our method can provide practical
advantages over the flag-state squasher when applied to discrete-variable
protocols.

37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an