3 papers
quant-ph2026
Degeneracy Cutting: A Local and Efficient Post-Processing for Belief Propagation Decoding of Quantum Low-Density Parity-Check Codes
Kento Tsubouchi, Hayata Yamasaki, Shiro Tamiya
Quantum low-density parity-check (qLDPC) codes are promising for realizing scalable fault-tolerant quantum computation due to their potential for low-overhead protocols. A common a…
quant-ph2025
Concatenate codes, save qubits
Satoshi Yoshida, Shiro Tamiya, Hayata Yamasaki
The essential requirement for fault-tolerant quantum computation (FTQC) is the total protocol design to achieve a fair balance of all the critical factors relevant to its practical…
quant-ph2024
Polylog-time- and constant-space-overhead fault-tolerant quantum computation with quantum low-density parity-check codes
Shiro Tamiya, Masato Koashi, Hayata Yamasaki
A major challenge in fault-tolerant quantum computation (FTQC) is to reduce both space overhead -- the large number of physical qubits per logical qubit -- and time overhead -- the…