Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Characterizing nonclassical correlations via local quantum Fisher
  information   We define two ways of quantifying the quantum correlations based on quantum
Fisher information (QFI) in order to study the quantum correlations as a
resource in quantum metrology. By investigating the hierarchy of
measurement-induced Fisher information introduced in Lu et al. [X. M. Lu, S.
Luo, and C. H. Oh, Phys Rev. A 86, 022342 (2012)], we show that the presence of
quantum correlation can be confirmed by the difference of the Fisher
information induced by the measurements of two hierarchies. In particular, the
quantitative quantum correlations based on QFI coincide with the geometric
discord for pure quantum states.

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The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-ph
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The categories of this paper are: solv-int
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The categories of this paper are: stat
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th