Timeline for Set of density matrices
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 4, 2015 at 3:03 | vote | accept | QuantumTheory | ||
| Sep 4, 2015 at 2:56 | vote | accept | QuantumTheory | ||
| Sep 4, 2015 at 3:03 | |||||
| Sep 3, 2015 at 19:02 | answer | added | Igor Rivin | timeline score: 4 | |
| Sep 3, 2015 at 13:11 | comment | added | Suvrit | It the intersection (let's call it slice) of the convex cone of positive semidefinite matrices with a hyperplane; the open part of the PSD cone may also be viewed as a nice Riemannian manifold. (seems like I was typing my comment while David was also typing...) | |
| Sep 3, 2015 at 13:10 | comment | added | David E Speyer | The interior, where $A>0$, is a manifold, since positive definiteness is an open condition. If you want to talk about the boundary as well, it is a spectrahedron math.berkeley.edu/~bernd/WhatIsSpec.pdf . | |
| Sep 3, 2015 at 12:31 | history | asked | QuantumTheory | CC BY-SA 3.0 |