Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Communication Through a Quantum Link   A chain of interacting spin behaves like a quantum mediator (quantum link)
which allows two distant parties that control the ends of the chain to exchange
quantum messages. We show that over repeated uses without resetting the study
of a quantum link can be connected to correlated quantum channels with finite
dimensional environment (finite memory quantum channel). Then, using coding
arguments for such kind of channels and results on mixing channels we present a
protocol that allows us to achieve perfect information transmission through a
quantum link.

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The categories of this paper are: hep-ph
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
16
The categories of this paper are: stat