eigenchris

I make youtube videos about math and physics.
Currently working on spinors playlist:

[eigenchris @eigenchris]

Some slides explaining covectors* from my youtube series on relativity. (1/5)

*also called "1-forms", "linear forms", "linear functionals" because one name would be too easy.

[eigenchris @eigenchris]

Been a while since I've uploaded, but I made a video on the Klein-Gordon equation for scalar fields in field theory. Will be working up to the Dirac equation eventually. https://t.co/urYj8vWUzE

[eigenchris @eigenchris]

(I accidentally retweeted the 2-year-old tweet yesterday while looking at it. To be clear, I do think there's been improvement since then.)

[eigenchris @eigenchris]

I tried asking ChatGPT this same question about spinors, 2 years later. The original response in the quoted tweet is word salad, but this latest response is basically exactly right (as far as I can see).

[eigenchris @eigenchris]

Alas, I don't think I'll be able to use ChatGPT to help me with my spinor videos. Almost all of this is wrong.

[eigenchris @eigenchris]

I just uploaded a 90-minute introduction to Quantum Field Theory as part of my spinors playlist.

https://t.co/lVWz2AwIsM

[eigenchris @eigenchris]

@Daviddelacarcel @patobarcenas Hi. I never got around to learning Killing vectors properly. I know Alex Flournoy has a video lecture on YouTube for them. And Sean Carroll's free online notes cover them. Maybe that will be enough? You can feel free to me ask a question but I don't know if I can answer it well.

[eigenchris @eigenchris]

Latest spinor video is out. I try to de-mystify the gamma matrices and the chiral components of the dirac equation in just under an hour: https://t.co/LtZPH9WtVl

[eigenchris @eigenchris]

@bruguier I don't have a specific source for tensor calculus. For GR, I have a video titled "eigenchris's Math/Physics YouTube Channel Recommendations" where I mention a few (you can also check the description for links).

[eigenchris @eigenchris]

Some slides explaining covectors* from my youtube series on relativity. (1/5)

*also called "1-forms", "linear forms", "linear functionals" because one name would be too easy.

[eigenchris @eigenchris]

Video on the representations of the Lorentz Group and Lorentz Algebra is available on my youtube channel: https://t.co/SJXfZuPotU

[eigenchris @eigenchris]

Posted a video on the irreducible representations of SU(2), and the raising and lowering operators: https://t.co/okK4rww7l2

[eigenchris @eigenchris]

@eigenbros Yeah, fiber bundles are something I hope to understand eventually too. It's nice that his lectures will remain online, at least.

[eigenchris @eigenchris]

I was sad to learn today that professor Alex Flournoy passed away in late 2023. He was a great professor with a lot of charisma. He has hundreds of physics lectures on his youtube channel. I'll link a few videos in the replies. https://t.co/qU2FjTRvUo

[eigenchris @eigenchris]

Alex Flournoy's undergraduate physics lecture playlists are here: https://t.co/Yy4egLds0o

[eigenchris @eigenchris]

"In almost everything that we do, there's more than one way to do it. And just because we have figured out a way to do it, that by no means means it is the only way to do it. And sometimes it's not the best way to do it."
https://t.co/kGiXlE3oGC

[eigenchris @eigenchris]

@H2Colby Thanks. I hadn't seen much content available online for curved paths in special relativity, so I figured they would be useful. Making those videos really helped me bridge the gap between Special Relativity and General Relativity.

[eigenchris @eigenchris]

My latest video is on the spin-1/2 representations of SU(2) (rotations in space) and SL(2,C) (Lorentz transformations in spacetime): https://t.co/XRaUKAw9ck

[eigenchris @eigenchris]

Uploaded the 1st of 5 videos on Lie Groups & Lie Algebras, and how they relate to spinors: https://t.co/qc9dsiFqao

[Freya Holmér @FreyaHolmer]

My talk from Dutch Game Day is now live!! 🎉

https://t.co/oU9wglmN1U

[eigenchris @eigenchris]

Very good introduction to Geometric Algebra (aka Clifford Algebra) by Freya.

[Freya Holmér @FreyaHolmer]

My talk from Dutch Game Day is now live!! 🎉

https://t.co/oU9wglmN1U