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I've enjoyed teaching students at Edinburgh University about QEC this term. Here I am introducing the famous [[9,1,3]] Shor code.

21/11/24, 11:00 am0 reposts13 likes

PSA: The Tanner graph representation is the best way of depicting surface codes.

Alternatively: the ZX-calculus representation is the best way of depicting surface codes (arxiv.org/abs/2204.14038)

Remember: the surface code threshold is not the breakeven point (for finite-size codes).