107 citations · 269 across the 12 of their papers we have counts for
Showing 2007 · quant-phShow all
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quant-ph2007★ 93 cited
Entanglement detection beyond the cross-norm or realignment criterion
Cheng-Jie Zhang, Yong-Sheng Zhang, Shun Zhang +1
Separability problem, to decide whether a given state is entangled or not, is a fundamental problem in quantum information theory. We propose a powerful and computationally simple…
quant-ph2007★ 107 cited
Optimal entanglement witnesses based on local orthogonal observables
Cheng-Jie Zhang, Yong-Sheng Zhang, Shun Zhang +1
We show that the entanglement witnesses based on local orthogonal observables which are introduced in [S. Yu and N.-L. Liu, Phys. Rev. Lett. 95, 150504 (2005)] and [O. Gühne, M. Me…