6 papers
Two-Layer Verification for Fault-Tolerant Magic-State Preparation in High-Rate Quantum Codes
Naoyuki Kanomata, Hayato Goto
Encoded magic states are essential for universal fault-tolerant quantum computation, but their resource-efficient preparation in high-rate quantum codes remains challenging. To add…
High-Rate Concatenated Quantum Error-Correcting Codes for Qudits
Takanori Nishi, Hayato Goto
Qudits provide a larger local Hilbert space than qubits and have recently attracted interest as building blocks for efficient fault-tolerant quantum computation (FTQC). In this wor…
Neural decoders for subsystem many-hypercube codes
Ryota Nakai, Hayato Goto
To maximize the potential of quantum error-correcting codes, it is essential to develop high-performance decoders. The subsystem many-hypercube (MHC) codes have been developed to a…
Optimized Many-Hypercube Codes toward Lower Logical Error Rates and Earlier Realization
Hayato Goto
Many-hypercube codes, concatenated quantum error-detecting codes ( is even), have recently been proposed as high-rate quantum codes suitable for fault-tolerant q…
Subsystem many-hypercube codes: High-rate concatenated codes with low-weight syndrome measurements
Ryota Nakai, Hayato Goto
Quantum error-correcting codes (QECCs) require high encoding rate in addition to high threshold unless a sufficiently large number of physical qubits are available. The many-hyperc…
Fault-tolerant quantum computing with a high-rate symplectic double code
Naoyuki Kanomata, Hayato Goto
High-rate and large-distance quantum codes are expected to make fault-tolerant quantum computing more efficient, but most of them lack efficient fault-tolerant encoded-state prepar…