# Qunova Computing Achieves Chemical Accuracy at 80 Qubits on Iron-Sulfur Cluster Using IBM Quantum System Two and Fugaku

Source: [Quantum Computing Report](https://quantumcomputingreport.com/qunova-computing-achieves-chemical-accuracy-at-80-qubits-on-iron-sulfur-cluster-using-ibm-quantum-system-two-and-fugaku/) · 2026-11-13 · Computing
Page: https://themorning.science/story/qunova-computing-achieves-chemical-accuracy-at-80-qubits-on-iron-sulfur-cluster-70b4545a5b102dd0
Kind: research · Impact: medium

## In brief

- Qunova Computing reports reaching chemical accuracy in a simulation of an 80-qubit iron-sulfur cluster.
- The calculation used a hybrid setup combining IBM Quantum System Two with the Fugaku supercomputer.
- Its HI-VQE algorithm reduced classical computing costs, according to the report.

## Why it matters

It is a reported step toward using quantum hardware for accurate chemistry on molecules of a size relevant to research, such as iron-sulfur clusters found in biological systems.

## Timeline

- 2026-11-13: Chemical accuracy result on 80-qubit iron-sulfur cluster reported

## Coverage

- [Qunova Computing Achieves Chemical Accuracy at 80 Qubits on Iron-Sulfur Cluster Using IBM Quantum System Two and Fugaku](https://quantumcomputingreport.com/qunova-computing-achieves-chemical-accuracy-at-80-qubits-on-iron-sulfur-cluster-using-ibm-quantum-system-two-and-fugaku/) — Quantum Computing Report, 2026-11-13

Tags: quantum computing, quantum chemistry, iron-sulfur clusters, hybrid computing, supercomputing

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science