Finally got around to implementing a #spinor toy i had always wanted. the geometry was already in place, but i couldn't have done the UI without claude.

What you get is a left and right spinor that you can act on with Lorentz transformations (Spin(1,3)) but also a bunch of other things that just let you have fun with the spinors. i happen to have a touchscreen on my laptop which makes the controls really fun to play with.

http://spin.im3d.xyz/dirac/

A very cute #spinor that everyone is familiar with is a clock:
start at noon, rotate the hour hand 360°. you're back at 12h but now it's midnight! You need 720° to return to the same time.

Another #spinor toy to give a visual intuition for 2-state quantum systems like an electron or a qubit:

https://editor.p5js.org/aap/sketches/Kz6AvFdd4

Another attempt at #spinor visualization: here you can play with quaternionic #triality and Spin(4) interactively :) Just press play.

https://editor.p5js.org/aap/sketches/7RQS3TOHQ

Maybe a #spinor- rather than vector-based approach to interpreting clifford algebra could be called gyrometric algebra rather than geometric algebra 🤔

EDIT: or chirometric!

Heyy could someone recommend a good resource for twistor theory that is not 'spinors and space-time 2'?

#spinor #twistor

Do you remember that crazy thing from #math, called #spinor? Yes, the "square root of vectors" one. Yeah, right, one that picks up a minus sign when you rotate it 360 degrees around, whatever it means. And it's somehow related to quantum #physics.
I think I finally got the idea behind it :) Well, at least the "picks up minus sign" part. Well, at least I *think* I got it. Took me few years.

That extra turn is just what we need for our pair of spheres. The small ball will, as you may have guessed, unwind itself three times onto the large one, while turning four times around itself!

Well okay, we only have a projective sphere, whqich can only accomodate half a revolution, yielding two turns of the little ball. We need two because the little ball is 'spinorial'.

https://en.wikipedia.org/wiki/Spinor

https://en.wikipedia.org/wiki/Spin_group

#spin and #spinor

Spinor - Wikipedia

Supersymmetry and Superspace

A very fun 3 part lecture series on the basics of supersymmetry, recounted in a nice and tidy way. Jon Bagger is an emphatic and pleasant speaker, and he takes great care to unfold this great collusion of ideas from the heart of physics.

I like it when he says_ "...because that's what it means!"

https://www.youtube.com/watch?v=y-6qIChRtOY

#maths #lecture // #supersymmetry #algebra // #relativistic, #qft, #spinor

Supersymmetry and Superspace, Part 1 - Jon Bagger

YouTube