Zihan Chen
zihanchen.bsky.social
Zihan Chen
@zihanchen.bsky.social
PhD student @ USTC. I expect to graduate in 2026 and am looking for a postdoc or research position on fault-tolerant quantum computation.
So basically, our protocols work in the following way:
We use the small RP^2 code to hold information and transform it to SRP code (a self-dual code) to double-check the logical state and then back. After preparing a high fidelity T state on the RP^2 code, we grow it to a large rotated surface code.
April 12, 2025 at 5:46 AM
Back to describe our work:
Inspired by the original MSC protocol, we propose a new MSC protocol that produces T states on the regular surface code. Our protocol requires nearly an order of magnitude smaller spacetime cost to prepare a T state with logical error rate 1e-9 compared to the original MSC
April 12, 2025 at 5:46 AM
Finally got around to write about our recent work, in which we propose a new magic state cultivation protocol with enhanced efficiency using non-local connectivity. arxiv.org/abs/2503.18657
April 12, 2025 at 5:46 AM
Overall, our S gate protocol is simple but it works. Now all Clifford gates can be done transversally on rotated surface codes (with long range connectivity).
December 5, 2024 at 5:56 AM