Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Distributed correlations and information flows within a hybrid
  multipartite quantum-classical system   Understanding the non-Markovian mechanisms underlying the revivals of quantum
entanglement in the presence of classical environments is central in the theory
of quantum information. Tentative interpretations have been given by either the
role of the environment as a control device or the concept of hidden
entanglement. We address this issue from an information-theoretic point of
view. To this aim, we consider a paradigmatic tripartite system, already
realized in the laboratory, made of two independent qubits and a random
classical field locally interacting with one qubit alone. We study the
dynamical relationship between the two-qubit entanglement and the genuine
tripartite correlations of the overall system, finding that collapse and
revivals of entanglement correspond, respectively, to raise and fall of the
overall tripartite correlations. Interestingly, entanglement dark periods can
enable plateaux of nonzero tripartite correlations. We then explain this
behavior in terms of information flows among the different parties of the
system. Besides showcasing the phenomenon of the freezing of overall
correlations, our results provide new insights on the origin of retrieval of
entanglement within a hybrid quantum-classical system.

8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga