Information geometry of operator scaling
Information geometry of operator scaling
复制标题
算子缩放的信息几何
DOI:
10.1016/j.laa.2022.04.022
复制
发表时间:
2022
影响因子:
1.1
通讯作者:
Soma Tasuku
中科院分区:
文献类型:
--
作者:
Matsuda Takeru;Soma Tasuku
Matrix scaling is a classical problem with a wide range of applications. It is known that the Sinkhorn algorithm for matrix scaling is interpreted as alternating e-projections from the viewpoint of classical information geometry. Recently, a generalization of matrix scaling to completely positive maps called operator scaling has been found to appear in various fields of mathematics and computer science, and the Sinkhorn algorithm has been extended to operator scaling. In this study, the operator Sinkhorn algorithm is studied from the viewpoint of quantum information geometry through the Choi representation of completely positive maps. The operator Sinkhorn algorithm is shown to coincide with alternating e-projections with respect to the symmetric logarithmic derivative metric, which is a Riemannian metric on the space of quantum states relevant to quantum estimation theory.
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