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- W2103203028 abstract "We formulate and provide a solution to an approximation problem that occurs in various settings: Finding an optimal additive decomposition of a given Hermitian Hilbert–Schmidt operator, in a term commuting with a second Hermitian compact operator and a term as small as possible in the trace norm sense. In the finite-dimensional case, we show how to interpret our result through a Sylvester equation. An application to a quantum information problem and an interpretation in quantum probability are also sketched." @default.
- W2103203028 created "2016-06-24" @default.
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- W2103203028 date "2005-05-01" @default.
- W2103203028 modified "2023-09-27" @default.
- W2103203028 title "Optimal commuting approximation of Hermitian operators" @default.
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- W2103203028 doi "https://doi.org/10.1016/j.laa.2004.11.028" @default.
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