Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-step procedure to discriminate discordant from classical correlated
  or factorized states   We devise and experimentally realize a procedure capable of detecting and
distinguishing quantum discord and classical correlations as well the presence
of factorized states in a joint system-environment setting. Our scheme builds
on recent theoretical results showing how the distinguishability between two
reduced states of a quantum system in a bipartite setting can convey important
information about the correlations present in the bipartite state and the
interaction between the subsystems. The two addressed subsystems are the
polarization and spatial degrees of freedom of the signal beam generated by
parametric down-conversion, which are suitably prepared by the idler beam.
Different global and local operations allow for the detection of different
correlations by studying via state tomography the trace distance behavior
between suitable polarization subsystem states.

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The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg