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'Paraparticles' Would Be a Third Kingdom of Quantum Particle

(www.quantamagazine.org)
54 points rbanffy | 1 comments | 12 Apr 25 16:29 UTC | HN request time: 0s | source
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programjames ◴[12 Apr 25 19:25 UTC] No.43667232[source]▶
Here's a link to the paper: https://www.nature.com/articles/s41586-024-08262-7

I really wish they tied this into representation theory, because it looks like the R-tensors are similar to representations of the permutation group, but I don't see exactly how to write them in terms of representations.

replies(1): >>43668999 #
whatshisface ◴[13 Apr 25 00:18 UTC] No.43668999[source]▶
The r-tensors are a representation of the symmetric group, and this is stated right after eqn. 4.
replies(2): >>43671628 #>>43675454 #
programjames ◴[13 Apr 25 20:06 UTC] No.43675454[source]▶
I thought there was a little more structure than just that (since that's been around since the 1940s).
replies(1): >>43676524 #
1. whatshisface ◴[13 Apr 25 23:08 UTC] No.43676524[source]▶
It was previously known as a possibility, but it wasn't believed to have observable consequences. This paper relates it to degeneracy pressure in noninteracting systems.