I am well aware of quantum error correction, but there is quite a lot about surface codes that I don't understand. I would estimate there are about a couple of

I am well aware of quantum error correction, but there is quite a lot about surface codes that I don't understand. I would estimate there are about a couple of thousand people at most who can, without any other resources, make an accurate technical summary of the essential concepts in this post. I think if people understand quantum computing a little bit, then his earlier posts are much better https://arthurpesah.me/blog/2022-01-25-intro-qec-1/ https://arthurpesah.me/blog/2022-01-25-intro-qec-1/ https://arthurpesah.me/blog/2023-01-31-stabilizer-formalism-1/ https://arthurpesah.me/blog/2023-01-31-stabilizer-formalism-...