On the asymptotic distribution of block-modified random matrices
On the asymptotic distribution of block-modified random matrices
复制标题
关于分块修正随机矩阵的渐近分布
DOI:
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
Carlos Vargas
中科院分区:
文献类型:
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作者:
Octavio Arizmendi;I. Nechita;Carlos Vargas
We study random matrices acting on tensor product spaces which have been transformed by a linear block operation. Using operator-valued free probability theory, under some mild assumptions on the linear map acting on the blocks, we compute the asymptotic eigenvalue distribution of the modified matrices in terms of the initial asymptotic distribution. Moreover, using recent results on operator-valued subordination, we present an algorithm that computes, numerically but in full generality, the limiting eigenvalue distribution of the modified matrices. Our analytical results cover many cases of interest in quantum information theory: we unify some known results and we obtain new distributions and various generalizations.
DOI:
10.1063/1.4799440
发表时间:
2013
期刊:
arXiv: Mathematical Physics
影响因子:
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作者:
Motohisa Fukuda;Piotr Śniady
通讯作者:
Piotr Śniady