pymatching

The quantum substrate of the Neura Parse stack — one IR across gate, neutral-atom, photonic-CV and pulse modalities; fault-tolerant promotion (surface · BB qLDPC · Gidney–Shutty cultivation); AI-augmented compilation; ed25519-signed manifests with offline-verifiable hash chains.

Quantum error correction decoders for Python with a compiled Rust core: Union-Find, exact MWPM, BP-OSD for qLDPC codes, CPU/GPU batch decoding, Stim and Sinter integration.

Autonomous Quantum Error Correction (QEC) Syndrome Decoder using Stim, PyMatching MWPM, Qiskit & Streamlit

Neural network decoders (MLP, GNN) for quantum error correction on a distance-3 surface code — benchmarked against classical MWPM, validated on real Google Sycamore hardware data.

Application-aware quantum resource compiler

HPC assisted Surface Code threshold simulator powered by Stim, PyMatching, and Sinter for distributed quantum error correction research.

Aegis QEC — Open-source quantum error correction for surface codes: Stim/PyMatching MWPM decoding, noise simulation, benchmarking, and reproducible research.

A benchmark harness you can't fool: compare neural QEC decoders against minimum-weight perfect matching on identical shots, with Wilson intervals and honest three-way verdicts.

A learned surface-code decoder, trained and judged on a self-provisioning Slurm cluster on AWS, with every number traced to its run and every experiment registered before it ran

Open-source QEC decoders: Pathfinder — a direction-aware neural surface-code decoder (real-time-budget Triton kernel) whose multi-seed ensemble lowers logical error below the prior open-source GNN at operational noise rates — plus a kernel-grounded, MLE-anchored latency–LER benchmark for circuit-level qLDPC (bivariate-bicycle) codes.

Notebook laboratory for quantum error correction, tensor-network simulation, fault-tolerant compilation, and quantum algorithms.

Compare neural and matching decoders for surface-code quantum error correction in an interactive simulator.

Circuit-level surface code Monte Carlo simulation with syndrome extraction, logical-failure tracking and threshold analysis.

Open-source quantum error correction research workspace with Stim, PyMatching, reproducible experiments, and a Gemini research assistant.

Does fitting a matching decoder's prior from syndromes help? Exact risk theory, certified bounds over prior families, shot-budget frontiers under noise heterogeneity, and Willow hardware analysis — with the result tables behind every number.

QEC pipeline for IQM hardware — Junction Quantum Hack 2026 submission (see tag/release) + post-hackathon development on main

Streaming GNN pre-decoder for the rotated surface code under circuit-level noise (SI1000 plus a correlated variant). Built on Stim, PyMatching and PyTorch Geometric, benchmarked against MWPM and correlated matching: logical error per round, Λ, latency and generalisation across distance and noise. Reproducible configs, fixed seeds.

Classical toy simulation (Stim + PyMatching, classical CPU only) of surface-code and repetition-code memory scaling. No hardware, not a QEC demonstration.

Cloud-distributed Monte Carlo sampling for quantum error correction. Partitions Stim circuits across SkyPilot-managed spot instances, each running unmodified sinter collect, then merges results via sinter combine.

Rotated surface code quantum error correction simulator: Stim + PyMatching threshold curve, D3 lattice animation, RSA-2048 qubit estimator