Timeline for Kraus operator rank
Current License: CC BY-SA 3.0
6 events
when toggle format | what | by | license | comment | |
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May 7, 2020 at 5:07 | answer | added | user38762 | timeline score: 4 | |
Dec 13, 2014 at 6:43 | history | tweeted | twitter.com/#!/StackPhysics/status/543657368266223618 | ||
Oct 14, 2014 at 18:13 | answer | added | Martin | timeline score: 5 | |
Oct 8, 2014 at 17:04 | comment | added | Martin | yes, you are making a mistake: A matrix of rank k kann be expressed as a sum of k rank-1 matrices (that's via singular value decomposition, just as Nielsen&Chuang say), but that doesn't mean that ANY decomposition into rank-1 matrices has at most k matrices. Rather the opposite: it has at least k matrices. Thus proving (which is trivial) that the summands in your some are of rank-1 doesn't get you anywhere. | |
Oct 8, 2014 at 5:04 | review | First posts | |||
Oct 8, 2014 at 5:06 | |||||
Oct 8, 2014 at 5:00 | history | asked | user55552 | CC BY-SA 3.0 |