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quant-ph2010★ 4 cited
Degree of separability of bipartite quantum states
Guo Chuan Thiang
We investigate the problem of finding the optimal convex decomposition of a bipartite quantum state into a separable part and a positive remainder, in which the weight of the separ…
quant-ph2009★ 5 cited
Optimal Lewenstein-Sanpera decomposition of two-qubit states using Semidefinite Programming
Guo Chuan Thiang, Philippe Raynal, Berthold-Georg Englert
We use the language of semidefinite programming and duality to derive necessary and sufficient conditions for the optimal Lewenstein-Sanpera Decomposition (LSD) of 2-qubit states.…