Sign in

Diego Ruiz

@diego-ruiz.bsky.social
306 followers 52 following 11 posts

PhD student in Quantum Computing, Quantum Error Correction at INRIA, Alice&Bob

PostsRepliesMedia
Diego Ruiz @diego-ruiz.bsky.social · 19/01/2026
New preprint out with @pshanahan62.bsky.social! We introduce a new error-correcting code for biased-noise qubits. Built from the concatenation of two classical codes, it outperforms the surface and XZZX codes when the noise bias exceeds 7x10^4. arxiv.org/abs/2601.10786
arxiv.org
Elevator Codes: Concatenation for resource-efficient quantum memory under biased noise
Biased-noise qubits, in which one type of error (e.g. $X$- and $Y$-type errors) is significantly suppressed relative to the other (e.g. $Z$-type errors), can significantly reduce the overhead of quant...
272
Diego Ruiz @diego-ruiz.bsky.social · 18/07/2025
Probably the last paper of my PhD! We show that biased-noise qubits can greatly reduce the cost of magic state preparation With high noise bias, just 53 qubits and ~10 error correction cycles are enough to prepare a magic state with logical error≈1e-7 arxiv.org/abs/2507.12511
arxiv.org
Unfolded distillation: very low-cost magic state preparation for biased-noise qubits
Magic state distillation enables universal fault-tolerant quantum computation by implementing non-Clifford gates via the preparation of high-fidelity magic states. However, it comes at the cost of sub...
2211
Reposted by Diego Ruiz
Christophe Vuillot @christophe.vuillot.info · 21/03/2025
Two talks of Alice&Bob QEC team in parallel this morning: @diego-ruiz.bsky.social presented his new results on distillation with biased-noise qubits: with bias=30 he already gets 150x reduction! I talked about implementing rotor codes So many fun subjects to work on, join our team we are hiring!🐱
Diego presenting his work under the expert eye of Craig Gidney Summary slide of Diego's results
2202
Diego Ruiz @diego-ruiz.bsky.social · 14/02/2025
First realization of a dissipatively stabilized squeezed cat qubit (a slight variation that we called a moon cat 🌛 actually), it was super interesting to work on this with experimentalists! arxiv.org/abs/2502.07892 My two key takeaways ⬇️⬇️
arxiv.org
Enhancing dissipative cat qubit protection by squeezing
Dissipative cat-qubits are a promising architecture for quantum processors due to their built-in quantum error correction. By leveraging two-photon stabilization, they achieve an exponentially suppres...
1123
Diego Ruiz @diego-ruiz.bsky.social · 29/01/2025
Happy to share our work with @anthony-leverrier.bsky.social, @christophe.vuillot.info, Jérémie Guillaud and Mazyar Mirrahimi on the LDPC-cat architecture was published in Nature Communications! Thanks to the reviewers for their useful feedback www.nature.com/articles/s41...
nature.com
LDPC-cat codes for low-overhead quantum computing in 2D - Nature Communications
Implementing full quantum error correction incurs a significant hardware overhead. Here, the authors propose a quantum computing architecture combining superconducting cat qubits with 2D local LDPC co...
1215