363 citations · 2.5k across the 54 of their papers we have counts for
Showing 2014 · quant-phShow all
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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 -partite state , we define its quantum mutual information matrix as an by matrix whose -entry is given by quantum mut…
quant-ph2014★ 129 cited
Post-processing of the oblivious key in quantum private queries
Fei Gao, Bin Liu, Wei Huang +1
Quantum private query (QPQ) is a kind of quantum protocols to protect both users' privacy in their communication. There is an interesting example, that is, Alice wants to buy one i…