Feng Liu

2 citations · 2 across the 3 of their papers we have counts for

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quant-ph2016★ 2 cited

Coherence of Superpositions

Qiu-Ling Yue, Chao-Hua Yu, Feng Liu +3

Quantum coherence is important in quantum mechanics, and its essence is from superposition principle. We study the coherence of any two pure states and that of their arbitrary supe…

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…