Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Remote control of quantum correlations in two-qubit receiver via
  three-qubit sender   We study the problem of remote control of quantum correlations (discord) in a
sub-system of two qubits (receiver) via the parameters of the initial state of
another sub-system of three qubits (sender) connected with the receiver by the
inhomogeneous spin-1/2 chain. We propose two parameters characterizing the
creatable correlations. The first one is the discord between the receiver and
the rest of spin-1/2 chain, it concerns the mutual correlations between these
two subsystems. The second parameter is the discord between the two nodes of
the receiver and describes the correlations inside of the receiver. We study
the dependence of these two discords on the inhomogeneity degree of spin chain.

10
The categories of this paper are: q-bio
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The categories of this paper are: hep-th
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The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex