HardwareSuperconducting
USTC Zuchongzhi 3.0
105physical qubits
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USTC
SuperconductingPhotonicUSTC ships Zuchongzhi 3.0, 105 physical qubits, announced Dec 2024.
Latest activity on record: Sep 10, 2026
Published figures
Each figure names its device and links to where it was published.
Qubit count over time
4 announced devices, by announcement date. Records such as logical-qubit demonstrations are listed below, not plotted. The line traces the largest device to date.
Every milestone on record
4 entries, newest first.
| Date | Device |
|---|---|
| Dec 2024 | Zuchongzhi 3.0105 physical qubitsWikipediaSource — Zuchongzhi 3.0 |
| Jan 2021 | Zuchongzhi 2.166 physical qubitsWikipediaSource — Zuchongzhi 2.1 |
| Jan 2020 | Jiuzhang76 physical qubitsWikipediaSource — Jiuzhang |
| Jan 2020 | Zuchongzhi62 physical qubitsWikipediaSource — Zuchongzhi |
curated: from the code-reviewed milestone list, sourced to the vendor · reviewed: a news-surfaced milestone an editor published · Wikipedia: synced from Wikipedia's list of quantum processors.
Recent headlines
Not on record for USTC yet: a published roadmap, a live fleet API, metriq-gym benchmarks, funding rounds.
Quantum · Timeline
USTC, in order
Everything the site tracks for USTC — hardware, records, advantage claims it took part in, funding and its own roadmap — newest first.
Newest on the timeline
Lanes and years
Jump to year
Sources
What the units count
- Physical qubits
- The hardware qubits on the device, before any error correction.
- Atoms
- Neutral-atom vendors count the atoms trapped in the array; each one can act as a physical qubit.
- Algorithmic qubits (AQ)
- IonQ's own system-level metric: the widest circuit at which a fixed set of benchmark algorithms still succeeds. No other vendor publishes it.
- Logical qubits
- Error-corrected qubits, each encoded across many physical ones. The codes differ between demonstrations, so two records rarely mean the same thing.
- Quantum volume
- A system-level score (a power of two) from square random circuits. Vendors run it under their own assumptions.
- Two-qubit gate fidelity
- How often a two-qubit gate does what it should, as a percent. The cards show the best published figure, with its device and source.