stim

Frontier decoder for quantum LDPC codes: pruned dynamic programming over boundary states for approximate logical maximum-likelihood decoding of sparse parity-check and detector-error-model matrices.

A library for analyzing Quantum Error Correction Codes from their Tanner Graphs.

Stim wrapper for simulations of surface code experiments

RustQEC: a Rust workspace for quantum error correction simulation, decoding, and reproducible benchmarks.

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.

Noise model replicating ytterbium atom qubits on Clifford circuits.

Tesseract quantum error correction code and Stim simulations

Firmware + other software useful for using our custom StimSync Device

Useful tools for QEC simulation with Stim

Production-grade Rust/Python quantum error correction decoder. 25+ decoder families: MWPM Blossom, Union-Find, BP-OSD, LDPC/qLDPC, belief-matching, CUDA/GPU batch decoding, AutoDecoder 7-tier fallback. PyMatching/Stim/Sinter compatible. Ed25519 license verification. Benchmark evidence included.

Vendor-portable GPU decoders for quantum LDPC codes — Triton min-sum BP & Relay-BP on NVIDIA (CUDA), AMD (ROCm), and Apple-silicon (Metal), consuming any stim DetectorErrorModel.

First version of social 2-step task with shocks.

CoDecoder: a small neural frontend that decodes confident shots itself and routes the rest to an unchanged strong QEC decoder (correlated matching, Relay-BP, Cascade), making decoding faster and more accurate. Training code, trained weights, circuits and test records of the paper.

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

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

Real device noise, pinned and portable. Load dated calibration profiles of real quantum computers into Qiskit, Cirq, PennyLane and Stim.

Independent red team for public quantum error correction decoders

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