Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determination of the maximum Global Quantum Discord via measurements of
  excitations in a cavity QED network   Multipartite Quantum Correlations is one of the most relevant indicator of
the quantumness of a system in many body systems. This remarkable feature is in
general difficult to characterize and the known definitions are hard to
measure. Besides the efforts dedicated to solve this problem, the question of
which is the best approach remains open. In this work, we study the Global
Quantum Discord, GQD, as a bipartite and multipartite measure. We also check
the limits of this definitions and present an experimental scheme to determine
the maximum of the GQD via the measurements of the system's excitations, during
the time evolution of the present system.

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The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
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The categories of this paper are: math
30
The categories of this paper are: q-alg
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The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph