Exploration of nonlocalities in ensembles consisting of bipartite quantum states
Ming-Yong Ye, Yan-Kui Bai, Xiu-Min Lin, and Z. D. Wang
TL;DR
This paper investigates nonlocalities in ensembles of bipartite quantum states, introduces a measure to quantify these nonlocalities, and evaluates bounds and exact values for specific orthogonal maximally entangled states.
Contribution
It introduces an operational measure for nonlocalities in bipartite quantum state ensembles and provides bounds and exact evaluations for certain classes of states.
Findings
Nonlocalities can be exhibited by multipartite quantum state ensembles.
Bounds for the nonlocality measure are estimated.
Exact values are obtained for ensembles of orthogonal maximally entangled states.
Abstract
It is revealed that ensembles consisting of multipartite quantum states can exhibit different kinds of nonlocalities. An operational measure is introduced to quantify nonlocalities in ensembles consisting of bipartite quantum states. Various upper and lower bounds for the measure are estimated and the exact values for ensembles consisting of mutually orthogonal maximally entangled bipartite states are evaluated.
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