Timeline for How can I accurately state the uncertainty principle?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 23, 2021 at 13:13 | comment | added | Colin Fredericks | Philosophically, I agree that it's not about measurements. Depending on what interpretation of QM you believe in, measurements are the only "real" thing, so I tried to be as interpretation-agnostic as I could. | |
| Mar 23, 2021 at 11:41 | comment | added | Criticizing Israel not allowed | Do time and frequency count as a HUP pair? Anyone familiar with basic signal processing can see why time and frequency can't be measured simultaneously. Many other HUP pairs, as far as I'm aware, are just time vs frequency applied to quantum physics. | |
| Mar 23, 2021 at 11:35 | comment | added | BioPhysicist | @md2perpe Right. It would be nice for this answer to discuss beyond measurements | |
| Mar 23, 2021 at 8:01 | comment | added | md2perpe | This answer exemplifies the most common misunderstanding of HUP: that it's about measurements. It's not. It's about state as @BioPhysicist writes. | |
| Mar 22, 2021 at 22:33 | comment | added | BioPhysicist | I think one of the issues is that the HUP is only ever talked about in the context of measurements, but it's really a statement about states in general and the standard deviations of repeated measurements of similar systems. You can apply it to states right after measurements, but it's more general than that. IMO calling them "uncertainties" is also greatly misleading, since it suggests "well, the particle has a position and momentum, we are just uncertain about what it is". | |
| Mar 22, 2021 at 21:54 | history | answered | Colin Fredericks | CC BY-SA 4.0 |