Using nonlocal coherence to quantify quantum correlation
Pei Pei, Wei Wang, Chong Li, and He-Shan Song
TL;DR
This paper introduces a new measure of quantum correlation based on nonlocal coherence, emphasizing the role of tensor product structure and applicable to arbitrary bipartite and multipartite states.
Contribution
It proposes a novel quantum correlation measure using nonlocal coherence, highlighting the importance of tensor product structure and extending to multipartite systems.
Findings
New measure of quantum correlation based on nonlocal coherence
Applicable to arbitrary bipartite and multipartite states
Analysis of non-entangled components within quantum correlation
Abstract
We reexamine quantum correlation from the fundamental perspective of its consanguineous quantum property, the coherence. We emphasize the importance of specifying the tensor product structure of the total state space before discussing quantum correlation. A measure of quantum correlation for arbitrary dimension bipartite states using nonlocal coherence is proposed, and it can be easily generalized to the multipartite case. The quantification of non-entangled component within quantum correlation is investigated for certain states.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum and electron transport phenomena · Quantum Mechanics and Applications