7 papers · 1 filter
Exact efficient simulation of noisy logical magic states using Clifford stabilizers
Yugo Takada, Stephen D. Bartlett, Dominic J. Williamson
The preparation of high-fidelity logical magic states is a crucial subroutine for universal fault-tolerant quantum computation (FTQC). Predicting the performance of FTQC and develo…
Clifford gates with logical transversality for self-dual CSS codes
Theerapat Tansuwannont, Yugo Takada, Keisuke Fujii
Quantum error-correcting codes with high encoding rate are good candidates for large-scale quantum computers as they use physical qubits more efficiently than codes of the same dis…
Doubly-polylog-time-overhead fault-tolerant quantum computation by a polylog-time parallel minimum-weight perfect matching decoder
Yugo Takada, Hayata Yamasaki
Reducing space and time overheads of fault-tolerant quantum computation (FTQC) has been receiving increasing attention as it is crucial for the development of quantum computers and…
Efficient Magic State Distillation by Zero-Level Distillation
Tomohiro Itogawa, Yugo Takada, Yutaka Hirano +1
Magic state distillation (MSD) is an essential element for universal fault-tolerant quantum computing, which distills a high-fidelity magic state from noisy magic states using idea…
Improving threshold for fault-tolerant color code quantum computing by flagged weight optimization
Yugo Takada, Keisuke Fujii
Color codes are promising quantum error correction (QEC) codes because they have an advantage over surface codes in that all Clifford gates can be implemented transversally. Howeve…
Comparative study of decoding the surface code using simulated annealing under depolarizing noise
Yusaku Takeuchi, Yugo Takada, Tatsuya Sakashita +4
We explored decoding methods for the surface code under depolarizing noise by mapping the problem into the Ising model optimization. We consider two kinds of mapping with and witho…