#clifford hierarchy

topicclifford hierarchy

2 papers · 1 filter

quant-ph2026

Restrictions on non-Clifford fault tolerance and ruling out beyond-SQL quantum metrology

Constantin Cedillo Vayson de Pradenne, Ishaan Kannan, Harald Putterman +1

The paper proves limits on transversal non‑Clifford gates in stabilizer codes, showing these constraints prevent fault‑tolerant transversal sensing that would surpass the standard…

quant-ph2026

Borrowed Identities: Malleable Distillation Factories and a Unified Numerical Search

Shraddha Singh, Craig Gidney, Cody Jones

The paper proposes a weaker "borrowed-identity" condition for magic‑state distillation circuits, enabling a unified numerical search that discovers and combines various distillatio…