9 citations · 22 across the 13 of their papers we have counts for
Showing 2012 · quant-phShow all
3 papers · 2 filters
quant-ph2012★ 6 cited
Criteria and new classes of k-positive maps
Jinchuan Hou, Chi-Kwong Li, Yiu-Tung Poon +2
We study k-positive maps on operators. Proofs are given to different positivity criteria. Special attention is on positive maps arising in the study of quantum information science.…
quant-ph2012★ 2 cited
Linear maps preserving separability of pure states
Jinchuan Hou, Xiaofei Qi
Linear maps preserving pure states of a quantum system of any dimension are characterized. This is then used to establish a structure theorem for linear maps that preserve separabl…
quant-ph2012★ 9 cited
A geometric characterization of invertible quantum measurement maps
Kan He, Jin-Chuan Hou, Chi-Kwong Li
A geometric characterization is given for invertible quantum measurement maps. Denote by the convex set of all states (i.e., trace-1 positive operators) on Hilber…