Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum mutual information and the one-time pad   Alice and Bob share a correlated composite quantum system AB. If AB is used
as the key for a one-time pad cryptographic system, we show that the maximum
amount of information that Alice can send securely to Bob is the quantum mutual
information of AB.

19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph