S. Qin

activity

20052025

most citedCryptanalysis of the Hillery-Buzek-Berthiaume quantum secret-sharing protocol

363 citations · 1.2k across the 45 of their papers we have counts for

collaborators

Showing 2014 · quant-phShow all

2 papers · 2 filters

quant-ph2014

General bounds for quantum discord and discord distance

Feng Liu, Guo-Jing Tian, Su-Juan Qin +2

For any bipartite state, how strongly can one subsystem be quantum correlated with another? Using the Koashi-Winter relation, we study the upper bound of purified quantum discord,…

quant-ph2014

Necessary and sufficient conditions for positive semidefinite quantum mutual information matrices

Feng Liu, Fei Gao, Su-Juan Qin +1

For any $n$ -partite state $ρ_{A_{1} A_{2} \cdot\cdot\cdot A_{n}}$ , we define its quantum mutual information matrix as an $n$ by $n$ matrix whose $(i, j)$ -entry is given by quantum mut…