72 citations · 1.4k across the 187 of their papers we have counts for
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quant-ph2012
Quantum entanglement and approximation by positive matrices
Xiaofen Huang, Naihuan Jing
We give an exact solution to the nonlinear optimization problem of approximating a Hermitian matrix by positive semi-definite matrices. Our algorithm was then used to judge whether…
quant-ph2012★ 34 cited
Local Unitary Equivalence of Arbitrary Dimensional Bipartite Mixed Quantum States
Chunqin Zhou, Tinggui Zhang, Shao-Ming Fei +2
The nonlocal properties of arbitrary dimensional bipartite quantum systems are investigated. A complete set of invariants under local unitary transformations is presented. These in…