Qubit Progress Evidence & Sources

Verified sources for all logical and physical qubit claims - December 2025

Verification Policy: All data validated against official company announcements, peer-reviewed papers, and QuantumZeitgeist.com. Roadmap targets are NOT counted as achievements.

3
Production LQ
2
Research Demos
16
0 LQ (Hardware)
21
Total Companies
Company PQ LQ Technology Type Date Notes Sources
Quantinuum 98 48 Ion-trap Production Nov 2025 Helios system - 2:1 ratio, color code QEC
[1] Quantinuum Blog: Introducing Helios [2] HPCwire: Quantinuum Introduces Helios [3] Live Science: Most Powerful Quantum Computer [4] Microsoft Blog: 12 LQ Sep 2024
Atom Computing 1,180 24 Neutral-atom Production Nov 2024 Microsoft partnership, Bacon-Shor code
[1] Microsoft Azure Blog: 24 Logical Qubits [2] TechCrunch: Commercial 2025 [3] GeekWire: Quantum Frontier [4] InsideHPC: 24 Entangled LQ
Nord Quantique 1 1 Superconducting Production Feb 2024 First 1:1 ratio using GKP bosonic codes, 14% lifetime improvement
[1] Physical Review Letters (Peer-Reviewed) [2] QuantumZeitgeist: First Error Correction [3] Quantonation: First Company [4] Nord Quantique Official
QuEra Computing 280 48 Neutral-atom Achieved Dec 2023 Harvard collaboration - 48 logical qubits demonstrated with surface code QEC
[1] Nature Paper (Peer-Reviewed) [2] Harvard Gazette [3] QuEra Press Release [4] QuantumZeitgeist
Google Quantum AI 105 1 Superconducting Achieved Dec 2024 Willow chip - demonstrated below-threshold logical qubit with surface code
[1] Google Blog: Meet Willow [2] Google Research: QEC [3] Wikipedia: Willow Processor [4] Olivier Ezratty Analysis
IBM Quantum 1,121 0 Superconducting 0 LQ Dec 2023 Condor processor - world's first 1000+ qubit chip
[1] Wikipedia: IBM Condor [2] IBM Quantum Roadmap Blog [3] IEEE Spectrum [4] QuantumZeitgeist: Condor
IonQ 64 0 Ion-trap 0 LQ Oct 2025 #AQ 64, world record 99.99% two-qubit fidelity
[1] IonQ Blog: 99.99% Fidelity [2] IonQ Investor News: AQ 64 [3] QuantumZeitgeist: IonQ AQ64 [4] HPCwire
Rigetti Computing 84 0 Superconducting 0 LQ Dec 2024 Ankaa-3 with 99.5% fidelity, real-time QEC demo with Riverlane
[1] Rigetti: Ankaa-3 Launch [2] Amazon Braket: Ankaa-2 [3] Riverlane QEC Demo
Pasqal 324 0 Neutral-atom 0 LQ Jun 2024 1000+ atoms loaded; 324 is architecture spec. 100+ qubits commercial.
[1] Pasqal: 324-Atom Architecture [2] Pasqal: 1000+ Atoms [3] QuantumZeitgeist: Pasqal [4] Pasqal Roadmap
PsiQuantum - 0 Photonic 0 LQ Feb 2025 Omega chipset announced. GlobalFoundries manufacturing. No complete system yet.
[1] PsiQuantum: Omega Chipset [2] QuantumZeitgeist: PsiQuantum Omega [3] PsiQuantum Technology [4] SiliconANGLE
Xanadu 216 0 Photonic 0 LQ Oct 2024 TWO SYSTEMS: Borealis (216 qubits, GBS for quantum advantage, NOT universal) vs Aurora (12 qubits, universal gate-based for QEC). Different architectures - not a decrease.
[1] Nature: Borealis Paper [2] BetaKit: Aurora [3] QuantumZeitgeist: Borealis [4] GlobeNewswire: SPAC
IQM 150 0 Superconducting 0 LQ Q1 2025 Radiance 150-qubit system. 99.9% fidelity. Halocene QEC line announced.
[1] IQM: Radiance Launch [2] IQM: 300-Qubit Finland [3] QuantumZeitgeist: IQM Radiance [4] IQM: Halocene QEC
D-Wave 4,400 N/A Quantum Annealing N/A Nov 2024 Advantage2 production (4400) has HIGHER quality than prototype (5000): 2x coherence, 20-way connectivity. Quality over quantity. LQ N/A for annealing.
[1] D-Wave: Advantage2 Calibration [2] HPCwire: Advantage2 [3] QuantumZeitgeist: Advantage2 [4] D-Wave: Benchmarks
Alice & Bob 16 0 Cat-qubit 0 LQ Dec 2024 Boson 4 chip. 7+ minute bit-flip lifetime world record. Scaling to 16 qubits.
[1] HPCwire: Roadmap [2] Alice & Bob: Google Cloud [3] Nature Publication [4] QuantumZeitgeist: Roadmap
Oxford Quantum Circuits 32 0 Superconducting 0 LQ Nov 2023 Toshiko 32-qubit system. Genesis 16 LQ is 2026 ROADMAP, NOT achieved.
[1] OQC: Toshiko Launch [2] OQC Roadmap [3] QuantumZeitgeist: 50k LQ by 2034 [4] QuantumZeitgeist: OQC Roadmap
ORCA Computing 90 0 Photonic 0 LQ Oct 2024 PT-2 system via temporal multiplexing. 4000x more powerful than PT-1.
[1] ORCA: PT-2 Launch [2] QuantumZeitgeist: ORCA PT-2 [3] ORCA Press
Infleqtion 1,600 0 Neutral-atom 0 LQ Feb 2024 Sqorpius 1600-qubit array. 99.73% entangling gate fidelity. 2.8s coherence.
[1] Infleqtion: Sqorpius Roadmap [2] BusinessWire [3] QuantumZeitgeist: Infleqtion Roadmap [4] NextBigFuture
SEEQC 64 0 Superconducting 0 LQ 2024 Digital SFQ chips. 64-qubit multiplexing capability. Prism platform.
[1] SEEQC: Digital Chips [2] BusinessWire [3] SEEQC Technology [4] QuantumZeitgeist: SEEQC
Quantum Circuits Inc 8 0 Superconducting 0 LQ Nov 2024 Aqumen Seeker 8 DRQs. Error DETECTION only, not full correction. 99.99% SPAM.
[1] QCI: Aqumen Seeker [2] QuantumZeitgeist: QCI Aqumen [3] QCI: Dual-Rail Breakthrough [4] QCI Technology
Riverlane - N/A Software Software Oct 2024 QEC decoder software. Deltaflow 2 real-time QEC with Rigetti (<1us decode).
[1] Riverlane: Deltaflow 2 [2] Riverlane: Low-Latency QEC [3] GlobeNewswire: Rigetti QEC [4] HPCwire
Microsoft Azure Quantum - 0 Topological Partnership 2024 Uses partner hardware. 24 LQ from Atom Computing. 12 LQ from Quantinuum. Majorana 1 chip 2025.
[1] Microsoft: Majorana Topological Qubit [2] Microsoft: 12 LQ with Quantinuum [3] Microsoft: DARPA Selection [4] Microsoft: Majorana 1 Chip

Type Legend

Production Commercial logical qubits achieved
Research Lab demo only, not production
0 LQ No logical qubits yet
N/A Logical qubits not applicable
Software QEC software only
Partnership Uses partner hardware

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Last updated: December 2025 | For licensing inquiries: info@quantumzeitgeist.com