34 citations · 151 across the 29 of their papers we have counts for
5 papers · 1 filter
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.…
Spectrum nonincreasing maps on matrices
Gregor Dolinar, Jinchuan Hou, Bojan Kuzma +1
Maps which do not increase the spectrum on complex matrices in a sense that $\Sp(Φ(A)-Φ(B))\subseteq\Sp(A-B)$ are classified.
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…
Characterization of Lie Derivations on von Neumann Algebras
XIaofei Qi, Jinchuan Hou
Let be a von Neumann algebra without central summands of type and a scalar. It is shown that an additive map on satisfies $L…
Strong skew commutativity preserving maps on von Neumann algebras
Xiaofei Qi, Jinchuan Hou
Let be a von Neumann algebra without central summands of type . Assume that is a surjective map. It is shown that i…