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FAQ on Microsoft's topological qubit thing

(scottaaronson.blog)
320 points ingve | 1 comments | 20 Feb 25 07:25 UTC | HN request time: 0.222s | source
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blablabla123 ◴[20 Feb 25 07:47 UTC] No.43112134[source]▶
This seems quite a bold claim that Microsoft proofed that Neutrinos are Majorana particles...
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eigenspace ◴[20 Feb 25 08:41 UTC] No.43112484[source]▶
Huh? This has nothing to do with neutrinos.
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blablabla123 ◴[20 Feb 25 09:00 UTC] No.43112584[source]▶
The chip is literally called Microsoft Majorana 1

Indeed Majorana fermions are completely unseen/unconsidered outside of Neutrinos. In fact all Standard Model fermions except Neutrinos are proven to be Dirac fermions

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1. terminalbraid ◴[20 Feb 25 10:03 UTC] No.43112966[source]▶
You are confusing quasiparticles with fundamental particles. If we were to observe a Majorana topological state, this would have no bearing on the properties of the neutrino.

Also to say Majorana fermions are not considered outside of neutrinos is a patently ridiculous and ignorant statement. There is absolutely nothing in physics to say the only particle that can possibly be Majorana is a neutrino. For example, there have been theories of Majorana dark matter which are a consideration of fundamental Majorana particles outside of neutrinos.