107 citations · 269 across the 12 of their papers we have counts for
4 papers · 1 filter
Scaling of finite size effect of -Rényi entropy in disjointed intervals under dilation
Long Xiong, Shunyao Zhang, Guangcan Guo +1
The -Rényi entropy in the gapless models have been obtained by the conformal field theory, which is exact in the thermodynamic limit. However, the calculation of its finite size…
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…
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…
Compatibility conditions from multipartite entanglement measures
Jian-Ming Cai, Zheng-Wei Zhou, Shun Zhang +1
We consider an arbitrary d_{1}\otimes d_{2}\otimes ... \otimes d_{N} composite quantum system and find necessary conditions for general m-party subsystem states to be the reduced s…