2 papers
quant-ph2023
From entanglement to discord: a perspective based on partial transposition
Sun Liang-Liang, Zhou Xiang, Yu Sixia
Here, we show that partial transposition, which is initially introduced to study entanglement, can also inspire many results on quantum discord including: (I) a discord criterion o…
quant-ph2014
Non-commuting Observables are Jointly Measureable under Disturbance Correction Strategy
Liang-Liang Sun, Yong-Shun Song, Zhi-Xin Chen +1
In the study of Heisenberg's error-disturbance relation, it is commonly believed that the non-unitary change of states hinders us from deducing the information encoded in original…