Asymmetry-induced nonclassical correlation
- URL: http://arxiv.org/abs/2101.03721v1
- Date: Mon, 11 Jan 2021 06:15:14 GMT
- Title: Asymmetry-induced nonclassical correlation
- Authors: R. Muthuganesan, V. K. Chandrasekar
- Abstract summary: We establish the resource theory of asymmetry using quantum Fisher information (QFI)
By defining the average Fisher information as a measure of asymmetry, it is shown that the discrepancy of bipartite global and local asymmetries naturally induces the nonclassical correlation between the subsystems.
- Score: 1.5630592429258865
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: In quantum resource theory (QRT), asymmetry recognized as a valid resource
for the advantage of various quantum information processing. In this paper, we
establish the resource theory of asymmetry using quantum Fisher information
(QFI). By defining the average Fisher information as a measure of asymmetry, it
is shown that the discrepancy of bipartite global and local asymmetries
naturally induces the nonclassical correlation between the subsystems. This
measure satisfies all the necessary axioms of a faithful measure of bipartite
quantum correlation. As an illustration, we have studied the proposed measure
for an arbitrary pure state and Bell diagonal state.
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