Quantum scrambling via accessible tripartite information

Abstract Quantum information scrambling (QIS), from the perspective of quantum theory, is generally understood as local non-retrievability evolved through some dynamical process, and often quantified via entropic quantities such tripartite information. We argue that this approach comes with a number issues, in large part due to its reliance on mutual informations, which do not faithfully quantify correlations directly retrievable measurements, specific methodology used compute informations studied dynamics. show these issues can be overcome by using accessible defining corresponding ‘accessible informations’, provide explicit examples dynamics whose properties are properly standard Our results lay groundwork for more profound understanding what QIS represents, reveal promising, yet unexplored, venues further research.