Separability of Density Matrices of Graphs for Multipartite Systems

[摘要] We investigate separability of Laplacian matrices of graphs when seen as density matrices. This is a family of quantum states with many combinatorial properties. We firstly show that the well-known matrix realignment criterion can be used to test separabi

[学科分类] 离散数学和组合数学

[关键词] density matrices of graphs;Laplacian matrices;separability