A note on one-way quantum deficit and quantum discord. - Biao-Liang Ye; Shao-Ming Fei (Quantum Inf. Process., 2016)

Complete optimal convex approximations of qubit states under (B_2 ) distance. - Xiao-Bin Liang; Bo Li; Biao-Liang Ye; Shao-Ming Fei; Xianqing Li-Jost (Quantum Inf. Process., 2018)