Good old code surgery, now more parsimonious than ever. arxiv.org/abs/2603.05082 Joint work with amazing collaborators Andrew Yuan, Alex Cowtan, David Lin, and Dom Williamson.
Parsimonious Quantum Low-Density Parity-Check Code Surgery
Quantum code surgery offers a flexible, low-overhead framework for executing logical measurements within quantum error-correcting codes. It encompasses several fault-tolerant logical computation schem...
arxiv.org
Quantum code surgery: fast, addressable, parallel, (almost) constant space overhead, all at once on your favorite hypergraph product codes. arxiv.org/abs/2603.021...
Constant-Time Surgery on 2D Hypergraph Product Codes with Near-Constant Space Overhead
Generalized code surgery is a versatile and low-overhead technique for performing fault-tolerant computation on quantum low-density parity-check (qLDPC) codes. In many settings, surgery exhibits pract...
arxiv.org
Gave a talk recently at Coogee on constructing and analysing spacetime volumes of LDPC codes & surgeries thereof. Thanks to @sunnyhe.bsky.social @domwilliamson.bsky.social and Ted Yoder for the wonderful collaboration. www.youtube.com/watch?v=Lxzw...
Coogee '26 Talks - Alex Cowtan (Xanadu)
YouTube video by Quantum @ Sydney
youtube.com