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Joint numerical ranges, quantum maps, and joint numerical shadows

✍ Scribed by Gutkin, Eugene; Życzkowski, Karol

Book ID
123253785
Publisher
Elsevier Science
Year
2013
Tongue
English
Weight
397 KB
Volume
438
Category
Article
ISSN
0024-3795

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A normal form is derived for finite sets of doubly commuting matrices, under simultaneous unitary similarity. The matrices need not be normal, but they commute with each other and with the adjoints of each other. The normal form is further used to study joint numerical ranges of doubly commuting mat