RoadmapNeutral-atomPromised for 2026
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Quantum scorecard
Atom Computing
Neutral atomAtom Computing's newest prototype is 1180-qubit prototype, 1,180 atoms, announced Oct 2023. Next on its roadmap: Level-4 fault-tolerant quantum computer (with Microsoft), 2026.
Latest activity on record: Oct 8, 2026
Published figures
Each figure names its device and links to where it was published.
Qubit count over time
2 announced devices, by announcement date. Records such as logical-qubit demonstrations are listed below, not plotted. The line traces the largest device to date.
Roadmap
Targets the vendor has published. A target is a promise, not a result.
Every milestone on record
3 entries, newest first.
| Date | Device |
|---|---|
| Nov 2024 | 24 logical qubitsrecord24 entangled logical qubits on a neutral-atom device.256 atoms24 logical qubitscuratedSource — 24 logical qubits |
| Oct 2023 | 1180-qubit prototypeprototypeFirst >1000-atom quantum device (physical qubits).1,180 atomscuratedSource — 1180-qubit prototype |
| Aug 2021 | Phoenix100 physical qubitsWikipediaSource — Phoenix |
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
- Atom Computing Selected by DARPA for Final Stage of Quantum Benchmarking InitiativeHPCwire · Oct 8, 2026
- Atom Computing Advances to Final Stage of DARPA Quantum ProgramThe Quantum Insider · Oct 8, 2026
- DARPA Selects Atom Computing, Diraq, IBM, and IonQ for Final Stage C Verification under Quantum Benchmarking InitiativeQuantum Computing Report · Oct 8, 2026
Not on record for Atom Computing yet: two-qubit fidelity, a live fleet API, metriq-gym benchmarks, funding rounds.
Quantum · Timeline
Atom Computing, in order
Everything the site tracks for Atom Computing — 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
Promised next · 1
Roadmap targets whose year has not arrived yet, at the vendor's own date. They move into the timeline when the year passes, as shipped or as past their date.
20242 events
- HardwareNeutral-atom
Atom Computing 24 logical qubits
256physical qubits
24 entangled logical qubits on a neutral-atom device.
- Logical qubitsNeutral-atom
Atom Computing 24 logical qubits
24logical qubits
24 entangled logical qubits on a neutral-atom device.
20231 event
- HardwareNeutral-atomLane record
Atom Computing 1180-qubit prototype
1,180atoms
First >1000-atom quantum device (physical qubits).
20211 event
- HardwareNeutral-atomLane record
Atom Computing Phoenix
100physical qubits
That is the whole timeline: 4 events.
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.