36 citations · 70 across the 3 of their papers we have counts for
3 papers
quant-ph2010★ 34 cited
Positive finite rank elementary operators and characterizing entanglement of states
Xiaofei Qi, Jinchuan Hou
In this paper, a class of indecomposable positive finite rank elementary operators of order are constructed. This allows us to give a simple necessary and sufficient criter…
math-ph2010★ 36 cited
Constructing entanglement witnesses for infinite-dimensional systems
Jinchuan Hou, Xiaofei Qi
It is shown that, every entangled state in an infinite-dimensional composite system has a simple entanglement witness of the form with a nonnegative number and a fin…
math.OA2010
Additive Lie (-Lie) Derivations and Generalized Lie (-Lie) Derivations on Prime Algebras
Xiaofei Qi, Jinchuan Hou
The additive (generalized) -Lie derivations on prime algebras are characterized. It is shown, under some suitable assumption, that an additive map is an additive (generalize…