English

Asymmetry-induced nonclassical correlation

Quantum Physics 2021-10-07 v1

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.

Keywords

Cite

@article{arxiv.2101.03721,
  title  = {Asymmetry-induced nonclassical correlation},
  author = {R. Muthuganesan and V. K. Chandrasekar},
  journal= {arXiv preprint arXiv:2101.03721},
  year   = {2021}
}

Comments

12 pages, Comments are welcome

R2 v1 2026-06-23T21:58:39.704Z