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Main Author: Ende, Frederik vom
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2403.19643
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author Ende, Frederik vom
author_facet Ende, Frederik vom
contents We prove the statement "The collection of all elements of $\mathcal S$ which have only simple eigenvalues is dense in $\mathcal S$" for different sets $\mathcal S$, including: all quantum channels, the unital channels, the positive trace-preserving maps, all Lindbladians (GKSL-generators), and all time-dependent Markovian channels. Therefore any element from each of these sets can always be approximated by diagonalizable elements of the same set to arbitrary precision.
format Preprint
id arxiv_https___arxiv_org_abs_2403_19643
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Almost All Quantum Channels Are Diagonalizable
Ende, Frederik vom
Quantum Physics
We prove the statement "The collection of all elements of $\mathcal S$ which have only simple eigenvalues is dense in $\mathcal S$" for different sets $\mathcal S$, including: all quantum channels, the unital channels, the positive trace-preserving maps, all Lindbladians (GKSL-generators), and all time-dependent Markovian channels. Therefore any element from each of these sets can always be approximated by diagonalizable elements of the same set to arbitrary precision.
title Almost All Quantum Channels Are Diagonalizable
topic Quantum Physics
url https://arxiv.org/abs/2403.19643