Full nonlocality beyond maximally entangled scenarios

Abstract

Nonlocality is a quantum phenomenon that enables many different technology applications. Full nonlocality, arguably its strongest form, is of interest. However, identifying exactly which states can exhibit this property remains an open problem. Recent work established a connection between the phenomenon and antidistinguishability. Building upon that result, we propose a specific protocol with particular measurement settings in order to identify states that exhibit full nonlocality extending beyond the maximally entangled scenario. Consequently, this work derives new conditions for a family of non-maximally entangled states in d-dimensions narrowing the discussion to 5-dimensional states when considering explicit measurements