Inequality relations for the hierarchy of quantum correlations in two-qubit systems
Xiao‐Gang Fan, Fa Zhao, Huan Yang, Fei Ming, Dong Wang, Ye Liu · Frontiers of Physics · 2022
Entanglement, quantum steering and Bell nonlocality can be used to describe the distinct quantum correlations of quantum systems. Because of their different characteristics and application fields, how to divide them quantitatively and accurately becomes particularly important. Based on the sufficient and necessary criterion for quantum steering of an arbitrary two-qubit T-state, we derive the inequality relations between quantum steering and entanglement as well as between quantum steering and Bell nonlocality for the T-state. Additionally, we have verified those relations experimentally.