Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generic Security Analysis Framework for Quantum Secure Direct
  Communication   Quantum secure direct communication provides a direct means of conveying
secret information via quantum states among legitimate users. The past two
decades have witnessed its great strides both theoretically and experimentally.
However, the security analysis of it still stays in its infant. Some practical
problems in this field to be solved urgently, such as detector efficiency
mismatch, side-channel effect and source imperfection, are propelling the birth
of a more impeccable solution. In this paper, we establish a new framework of
the security analysis driven by numerics where all the practical problems may
be taken into account naturally. We apply this framework to several variations
of the DL04 protocol considering real-world experimental conditions. Also, we
propose two optimizing methods to process the numerical part of the framework
so as to meet different requirements in practice. With these properties
considered, we predict the robust framework would open up a broad avenue of the
development in the field.

34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
2
The categories of this paper are: math