7 papers
Concatenating Algebraic Codes over High-Rate Quantum LDPC Codes
Adam Wills, Michael E. Beverland, Lev S. Bishop +4
Different quantum error correction schemes trade off overhead, error suppression, and hardware connectivity. Code concatenation can relax these tradeoffs by using an outer code who…
High-performance syndrome extraction circuits for quantum codes
Armands Strikis, Dan E. Browne, Michael E. Beverland
We present a fast and effective framework for analysing and designing syndrome-extraction circuits (SECs). Our approach is based on left-right circuits, a general design for SECs w…
FPGA-tailored algorithms for real-time decoding of quantum LDPC codes
Satvik Maurya, Thilo Maurer, Markus Bühler +2
Real-time decoding is crucial for fault-tolerant quantum computing but likely requires specialized hardware such as field-programmable gate arrays (FPGAs), whose parallelism can al…
Fail fast: techniques to probe rare events in quantum error correction
Michael E. Beverland, Malcolm Carroll, Andrew W. Cross +1
The ultimate goal of quantum error correction is to create logical qubits with very low error rates (e.g. 1e-12) and assemble them into large-scale quantum computers capable of per…
Improved belief propagation is sufficient for real-time decoding of quantum memory
Tristan Müller, Thomas Alexander, Michael E. Beverland +4
We introduce a new heuristic decoder, Relay-BP, targeting real-time quantum circuit decoding for large-scale quantum computers. Relay-BP achieves high accuracy across circuit-noise…
Tour de gross: A modular quantum computer based on bivariate bicycle codes
Theodore J. Yoder, Eddie Schoute, Patrick Rall +5
We present the bicycle architecture, a modular quantum computing framework based on high-rate, low-overhead quantum LDPC codes identified in prior work. For two specific bivariate…