Timeline for $ J^2=(L+S)^2 $ versus $ (P - \frac{q}{c} A)^2 $
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16 events
| when toggle format | what | by | license | comment | |
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| Dec 19, 2021 at 20:24 | history | edited | anon.jpg | CC BY-SA 4.0 |
pointing out one of the more obvious errors in my question lmao
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| Dec 17, 2021 at 5:44 | history | edited | Qmechanic♦ | CC BY-SA 4.0 |
edited tags; edited title
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| Dec 17, 2021 at 3:22 | vote | accept | anon.jpg | ||
| Dec 17, 2021 at 3:21 | answer | added | anon.jpg | timeline score: 0 | |
| Dec 17, 2021 at 3:00 | history | tweeted | twitter.com/StackPhysics/status/1471676613054062592 | ||
| Dec 17, 2021 at 2:42 | vote | accept | anon.jpg | ||
| Dec 17, 2021 at 3:00 | |||||
| Dec 17, 2021 at 1:42 | answer | added | knzhou | timeline score: 4 | |
| Dec 17, 2021 at 1:31 | comment | added | anon.jpg | @knzhou sowwy it's actually $ 2 L \cdot S$. Here is a ref | |
| Dec 17, 2021 at 1:28 | history | edited | anon.jpg | CC BY-SA 4.0 |
added 3 characters in body
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| Dec 17, 2021 at 1:27 | comment | added | anon.jpg | @ZeroTheHero I got that, but can you elaborate why the multiplication goes the way it does? Because Py and Px for example do not act on the same space; that's why I was saying 2d and 3d and so on; for example Py could be seen as L and Px as S and Pz as... I dunno, the radial coordinate. I assume it has something to do with the trace or something as in the linked question | |
| Dec 17, 2021 at 0:57 | comment | added | knzhou | Can you give a reference for $J^2 = L^2 + S^2 + L \cdot S$? | |
| Dec 17, 2021 at 0:28 | comment | added | ZeroTheHero | $L$ and $S$ act in different spaces, whereas $p$ and $A$ act on the same space. | |
| Dec 16, 2021 at 23:27 | history | edited | Connor Behan | CC BY-SA 4.0 |
Close bracket
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| Dec 16, 2021 at 22:56 | comment | added | anon.jpg | btw there is a "similar" issue in here . But I don't think this is exactly what I'm looking for; the J situation deals with a space of only two Hilbert spaces since Lx, Ly, Lz are all in the same H space, while in the magnetic-field case we're dealing with a 3 dimensional system where Px , Py, Pz live on separate spaces. | |
| S Dec 16, 2021 at 22:46 | review | First questions | |||
| Dec 16, 2021 at 22:46 | |||||
| S Dec 16, 2021 at 22:46 | history | asked | anon.jpg | CC BY-SA 4.0 |