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January 1928: Dirac equation unifies quantum mechanics and special relativity

(www.aps.org)
109 points thunderbong | 1 comments | 21 Nov 24 02:17 UTC | HN request time: 0.258s | source
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JPLeRouzic ◴[21 Nov 24 08:58 UTC] No.42202394[source]▶
> Quaternions

I know nothing of physics, but it seems to me that rotation fingerprints are everywhere in physics. Is this just me or is there something more tangible in this remark?

replies(4): >>42203111 #>>42203171 #>>42205393 #>>42213719 #
1. jabl ◴[22 Nov 24 13:35 UTC] No.42213719[source]▶
There's a lot of rotations and stuff in QM, yes. That you should do it with quaternions is mostly an internet thing. I have a PhD in physics, and I never encountered quaternions in any course I took, and from seeing curricula in other universities I haven't seen it there either.