B Grade B
IQM Quantum Computers Garnet: Quantum Volume
32 quantum volume
As stated in the source: “QV = 2^5 = 32”
Caveats
Company-run, not peer-reviewed. No measurement date given.
- Set-up
- Square circuits of random SU(4) layers; passed at width/depth 5.
- Method
- Quantum volume (IBM protocol): heavy-output probability > 2/3 within two standard deviations
- Compared only with
- results in the group “standard”
- Measured
- Not stated
- Published
- 22 August 2024
- Measured by
- IQM Quantum Computers
- Independent of the maker
- No
- Peer-reviewed
- No
- Repeated by others
- Not yet
Source
Technology and Performance Benchmarks of IQM's 20-Qubit Quantum Computer, arXiv (preprint; also issued as IQM white paper). Preprint. DOI: 10.48550/arXiv.2408.12433
Comparable results
| Machine | Value | Set-up | Published | Measured by | Grade | Record |
|---|---|---|---|---|---|---|
| Quantinuum H2 | 2²⁵ | standard | 3 Nov 2025 | Maker | B | r-000020 |
| IQM Quantum Computers Emerald | 2⁶ | standard | 5 Aug 2025 | Maker | C | r-000046 |
| Quantinuum H2 | 2²³ | standard | 12 May 2025 | Maker | C | r-000021 |
| Quantinuum H1 | 2⁹ | standard | 2022 | Independent | A | r-000053 |
| IonQ Harmony | 8 | standard | 2022 | Independent | A | r-000054 |
| Rigetti Computing Aspen-M-1 | 8 | standard | 2022 | Independent | A | r-000055 |
History
- 27 October 2026: added
Spotted a mistake? Report an error, quoting r-000042.