Efficient Benchmarking of Logical Magic State

Author(s): Su-un Lee, Ming Yuan, Senrui Chen, Kento Tsubouchi, and Liang Jiang High-fidelity logical magic states are a critical resource for fault-tolerant quantum computation, enabling non-Clifford logical operations through state injection. However, benchmarking these states presents significant challenges: one must estimate the infidelity $ε$ with multiplicative precision,… [Phys. Rev. Lett. 136, 050602] Published Wed Feb 04, 2026