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quant-ph2016
Schmidt number of bipartite and multipartite states under local projections
Lin Chen, Yu Yang, Wai-shing Tang
The Schmidt number is a fundamental parameter characterizing the properties of quantum states, and the local projections are a fundamental operation in quantum physics. We investig…
math-ph2016★ 3 cited
All 2-positive linear maps from M3 to M3 are decomposable
Yu Yang, Denny H. Leung, Waishing Tang
Following an idea of Choi, we obtain a decomposition theorem for k-positive linear maps from Mm to Mn, where 2<=k<min{m,n}. As a consequence, we give an affirmative answer to Kye's…