228 citations · 1.8k across the 85 of their papers we have counts for
8 papers · 1 filter
Uncertainty-induced quantum nonlocality
Shao-xiong Wu, Jun Zhang, Chang-shui Yu +1
Based on the skew information, we present a quantity, uncertainty-induced quantum nonlocality (UIN) to measure the quantum correlation. It can be considered as the updated version…
Quantum correlation measure in arbitrary bipartite systems
Chang-shui Yu, Shao-xiong Wu, Xiao-guang Wang +2
A definition of quantum correlation is presented for an arbitrary bipartite quantum state based on the skew information. This definition not only inherits the good properties of sk…
The witness of sudden change of geometric quantum correlation
Chang-shui Yu, Bo Li, Heng Fan
In this paper, we give a sufficient and necessary condition (witness) for the sudden change of geometric quantum discord by considering mathematical definition of the discontinuity…
A type of localized quadripartite entanglement
Shao-xiong Wu, Chang-shui Yu
In this paper, we show that the average three-tangle of the reduced tripartite density matrix for some quadripartite pure states can be increased by some potential measurements on…
Probing quantum entanglement, quantum discord, classical correlation, and the quantum state without disturbing them
Zhen-ni Li, Jia-sen Jin, Chang-shui Yu
In this paper, we present schemes for a type of one-parameter bipartite quantum states to probe the quantum entanglement, the quantum discord, the classical correlation and the qua…
Bipartite concurrence and localized coherence
Chang-shui Yu, He-shan Song
Based on a proposed coherence measure, we show that the local coherence of a bipartite quantum pure state (coherence of its reduced density matrix) is exactly the same as the minim…