The von Neumann entropy of random multipartite graphs
The von Neumann entropy of random multipartite graphs
复制标题
随机多部分图的冯诺依曼熵
DOI:
10.1016/j.dam.2017.07.008
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发表时间:
2017-12
影响因子:
1.1
通讯作者:
Zhang Shenggui
中科院分区:
文献类型:
--
作者:
Hu Dan;Li Xueliang;Liu Xiaogang;Zhang Shenggui
Let G be a graph with n vertices and L (G) its Laplacian matrix. Define ρ G= 1 d G L (G) to be the density matrix of G, where d G denotes the sum of degrees of all vertices of G. Let λ 1, λ 2,…, λ n be the eigenvalues of ρ G. The von Neumann entropy of G is defined as S (G)=−∑ i= 1 n λ i log 2 λ i. In this paper, we establish a lower bound and an upper bound to the von Neumann entropy for random multipartite graphs.
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DOI:
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