title: Improved Separability Criteria Based on Bloch Representation of Density Matrices.
abstract: The correlation matrices or tensors in the Bloch representation of density matrices are encoded with entanglement properties. In this paper, based on the Bloch representation of density matrices, we give some new separability criteria for bipartite and multipartite quantum states. Theoretical analysis and some examples show that the proposed criteria can be more efficient than the previous related criteria.
authors.affiliation: College of the Science, China University of Petroleum, Qingdao 266580, P. R. China.
authors.forename: Shu-Qian
authors.initials: SQ
authors.lastname: Shen
authors.affiliation: College of the Science, China University of Petroleum, Qingdao 266580, P. R. China.
authors.forename: Juan
authors.initials: J
authors.lastname: Yu
authors.affiliation: College of the Science, China University of Petroleum, Qingdao 266580, P. R. China.
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.affiliation: School of Mathematical Sciences, Capital Normal University, Beijing 100048, P. R. China.|Max-Planck-Institute for Mathematics in the Sciences, Leipzig 04103, Germany.
authors.forename: Shao-Ming
authors.initials: SM
authors.lastname: Fei