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\kappa-deformed spin-1/2 field
Tadeusz Adach, Andrea Bevilacqua, Jerzy Kowalski-Glikman, Giacomo Rosati, Wojciech Wi\'slicki
https://arxiv.org/abs/2507.18336 https://…

κ-deformed spin-1/2 field
In this paper, we investigate the $κ$-deformed theory of a spin-1/2 field. We construct an action that is Poincaré invariant and analyze its consequences within the deformed framework. Our results confirm the findings of our recent analysis of the $κ$-deformed scalar field, where we established that there is no action invariant under both Poincaré symmetry and charge conjugation in the $κ$-deformed case. Furthermore, we present an explicit calculation of the Noether charges associated with…

Interesting that some who replied to my post on tax and GDP growth yesterday missed the point.
The point isn't to debate whether tax -> growth (it might, with a tail wind).
The point is that
1) Growth won't happen like it used to.
2) That is good because GDP growth is ecologically and socially lethal.
3) So our leaders (sic) had better adapt to the new reality and use taxation and other measures to build a better, fairer future.
More here:

Getting Real about the Crises Facing the UK | Stop the Damage! Build a Better Future!
Britain and the rest of the world face a set of almost intractable challenges, ecological (including climate), economic and social. Yet political leaders with few exceptions are failing to propose the actions and policies that could address the scale of this pancrisis. Here though is an alternative initiative, a kind of alternative manifesto with a portfolio of illustrative policies...

🇺🇦 #NowPlaying on #BBC6Music's #ChrisHawkins
The Last Dinner Party:
🎵 Nothing Matters
#TheLastDinnerParty
https://lookingglassalice.bandcamp.com/track/nothing-matters-the-last-dinner-party-looking-glass-alice-remix
https://open.spotify.com/track/3p84R45PM75ngq8XRoe45o