# Riverlane publishes its Local Clustering Decoder, a real-time hardware decoder for quantum error correction

Canonical page: https://technooptimist.io/stories/riverlane-publishes-its-local-clustering-decoder-a-real-time-hardware-f93bfc14
Date: 19 Dec 2025
About: [Riverlane](https://technooptimist.io/companies/riverlane.md) · [Deltaflow](https://technooptimist.io/quantum/deltaflow.md)
Original source: https://quantumcomputingreport.com/riverlane-unveils-first-adaptive-hardware-decoder-to-deliver-real-time-quantum-error-correction/

Riverlane published a peer-reviewed paper in Nature Communications on its Local Clustering Decoder, a chip-level decoder that finds and fixes errors in a quantum computer while the computer runs. It is the core of the Deltaflow error-correction stack.

## Key facts

- The decoder runs on FPGA hardware and completes one decoding round in under 1 microsecond, the speed the article says real-time correction needs.
- It adapts to the noise it sees, which the article presents as the feature that sets it apart from earlier hardware decoders.
- Deltaflow 3, due late 2026, is planned to add 'streaming logic' that corrects errors continuously during logical operations, not just between them.

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