- Quantum Technologies 2026
- Chapter 8
Systems in depth
One section per system: its state at evidence close, its exposures and what the operational series will watch.
Contents
- ·Edition home
- ·Executive summary
- 1Quantum is infrastructure and a cryptographic deadline
- 2Key findings
- 3Systems and sectors at baseline
- 4Risks and capability
- 5Long-lived data exposure while migration is slow
- 6Readings from the other desks
- 7The 2027 agenda
- 8Systems in depth
- AMethodology
- BData appendix
- CReferences and record
- ·Complete edition, for print
8.1Hardware and compute platforms
Quantum machines are built on several platforms. Evidence is strongest where peer review exists, and weakest where claims rest on vendor announcements.
| Component | State | Evidence | Status |
|---|---|---|---|
| Superconducting circuits | error correction below threshold at small distances; a 120-qubit processor listed | 28 | Reported |
| Trapped ions | a company reported 99.921% two-qubit gate fidelity on 98 qubits in November 2025 | 42 | Reported |
| Neutral atoms | logical-processor results published in 2024 | 38 | Reported |
| Error-correction codes | surface and qLDPC codes studied | 2939 | Inferred |
Couplings
- INF ↔ FIN hardware and funding
- INF → DAT capability and cryptography
- MIN → INF materials
Evidence to bind in 2027
- logical-qubit claims on a common basis
- delivered milestones against plans
Related editions
- GLB Global Systems
- GS-02 Energy
- XT-10 Cybersecurity and Advanced Cryptography
- XT-12 Advanced Materials and Nanotechnology
- SR-04 Critical Minerals and Strategic Materials
- XT-01 Artificial Intelligence and Agentic Systems
8.2Cryogenics, energy and helium
Many machines run below 10 millikelvin on dilution refrigerators that use helium-3 and helium-4. The energy and cooling footprint of useful machines is not yet published.
| Component | State | Evidence | Status |
|---|---|---|---|
| Dilution refrigerators | need helium-3 and helium-4; cryogenic setups scale to about 100 qubits in reported designs | 1333 | Reported |
| Energy use | classical methods can be more energy-efficient for some problems on noisy hardware | 9 | Reported |
| Helium supply | market disruption in 2026; helium-3 scarce | 1013 | Reported |
| Cooling water | not published for useful-scale machines | 9 | Expert input |
Couplings
- MIN → INF helium supply
- ENE ↔ INF facility power
- WAT → INF cooling water
Evidence to bind in 2027
- machine-level energy and water use
- helium-3 volumes and reserves
Related editions
- GLB Global Systems
- GS-02 Energy
- XT-10 Cybersecurity and Advanced Cryptography
- XT-12 Advanced Materials and Nanotechnology
- SR-04 Critical Minerals and Strategic Materials
- XT-01 Artificial Intelligence and Agentic Systems
8.3Materials, fabrication and supply chain
Hardware depends on specialised materials and fabrication steps, and on strategic minor minerals whose prices rose sharply in 2025 and 2026.
| Component | State | Evidence | Status |
|---|---|---|---|
| Strategic minor minerals | prices more than doubled; export controls tripled in scope | 10 | Reported |
| Fabrication | capacity by country not consolidated here | 34 | Expert input |
| Cryogenic components | few suppliers; helium-3 scarce | 13 | Inferred |
| Research access | depends on shared facilities | 7 | Inferred |
Couplings
- MIN → INF materials
- TRD → INF export controls
- FIN → INF fabrication
Evidence to bind in 2027
- fabrication capacity by country
- materials dependence by platform
Related editions
- GLB Global Systems
- GS-02 Energy
- XT-10 Cybersecurity and Advanced Cryptography
- XT-12 Advanced Materials and Nanotechnology
- SR-04 Critical Minerals and Strategic Materials
- XT-01 Artificial Intelligence and Agentic Systems
8.4Economy, investment and workforce
Investment surged in 2025, and almost all of it was private. Public finance and workforce numbers are the thin parts of the evidence.
| Component | State | Evidence | Status |
|---|---|---|---|
| Startup investment | USD 12.6 billion in 2025; about 97% private | 11 | Reported |
| Revenue | passed USD 1 billion for the first time | 11 | Reported |
| Public programmes | EU flagship EUR 1 billion from 2018; national strategies set funding | 72223 | Reported |
| Workforce | skills gaps reported; no figure bound | 34 | Expert input |
Couplings
- FIN → INF scale-up
- FIN → DAT migration costs
- HLT → INF workforce
Evidence to bind in 2027
- public funding totals
- workforce size and skills gaps
Related editions
- GLB Global Systems
- GS-02 Energy
- XT-10 Cybersecurity and Advanced Cryptography
- XT-12 Advanced Materials and Nanotechnology
- SR-04 Critical Minerals and Strategic Materials
- XT-01 Artificial Intelligence and Agentic Systems
8.5Security, cryptography and governance watch
The nearest effect of quantum technology on other infrastructure is the move to new cryptography. Standards exist, and national roadmaps are starting to set dates.
| Component | State | Evidence | Status |
|---|---|---|---|
| Standards | FIPS 203, 204 and 205 finalised; FIPS 206 planned | 3 | Reported |
| Migration plans | NIST transition report; EU roadmap; US federal directives | 456 | Reported |
| Export controls | US controls on quantum items from 2024 | 21 | Reported |
| Governance | EU strategy; Canadian and UK strategies; UN year of quantum science | 7222324 | Reported |
Couplings
- INF → DAT cryptographic exposure
- GOV → DAT migration timing
- GOV → TRD export controls
Evidence to bind in 2027
- migration progress by sector
- text of national roadmaps
Related editions
- GLB Global Systems
- GS-02 Energy
- XT-10 Cybersecurity and Advanced Cryptography
- XT-12 Advanced Materials and Nanotechnology
- SR-04 Critical Minerals and Strategic Materials
- XT-01 Artificial Intelligence and Agentic Systems
Notes
Numbers are the edition’s reference numbers, so a note reads the same in every chapter. The full list, with every source and its licence, is in Annex C. Annex C, references
- 2Google Quantum AI and collaborators, Quantum error correction below the surface code threshold, Nature 638, 920 to 926, 2025 (preprint arXiv:2408.13687, August 2024). Springer Nature, London. Observation year 2024. Accessed 2026-11-03.back
- 8IBM (ed.), IBM Quantum technology and roadmap page (Nighthawk 120 qubits; Starling planned for 2029 with 200 logical qubits and 100 million gates; statement on advantage in 2026). IBM, Armonk. Observation year 2026. Accessed 2026-11-03.back
- 42Quantinuum (ed.), Quantinuum announces commercial launch of Helios (press release, 5 November 2025; 98 qubits, 99.921% two-qubit and 99.9975% single-qubit gate fidelity; 94 error-detected and 48 error-corrected logical qubits; no logical gate fidelity stated). Quantinuum, Broomfield. Observation year 2025. Accessed 2026-11-03.back
- 38UNVERIFIED, not opened: Bluvstein, D. et al., Logical quantum processor based on reconfigurable atom arrays, Nature 626, 58 to 65, 2024, cited from memory. Observation year 2024. Accessed 2026-11-03.back
- 29UNVERIFIED, not opened: Fowler, A.G. et al., Surface codes: towards practical large-scale quantum computation, Physical Review A 86, 032324, 2012, cited from memory. Observation year 2012. Accessed 2026-11-03.back
- 39UNVERIFIED, not opened: Bravyi, S. et al., High-threshold and low-overhead fault-tolerant quantum memory, Nature 627, 778 to 782, 2024, cited from memory. Observation year 2024. Accessed 2026-11-03.back
- 13UNVERIFIED, not opened: War on the Rocks (ed.), The supply chain chokepoints in quantum (October 2025), and CNAS (ed.), report on helium-3 recovery and reserves (March 2026), taken from search-result summaries. Observation year 2026. Accessed 2026-11-03.back
- 9Jaschke, D. and Montangero, S., Is quantum computing green? An estimate for an energy-efficiency quantum advantage, Quantum Science and Technology 8, 025001, 2023 (preprint arXiv:2205.12092). IOP Publishing, Bristol. Observation year 2023. Accessed 2026-11-03.back
- 10IEA (ed.), Global Critical Minerals Outlook 2026 (revised version, July 2026). International Energy Agency, Paris. Observation year 2025. Accessed 2026-11-03.back
- 33UNVERIFIED, not opened: Krinner, S. et al., Engineering cryogenic setups for 100-qubit scale superconducting circuit systems, EPJ Quantum Technology 6, 2, 2019, cited from memory. Observation year 2019. Accessed 2026-11-03.back
- 34UNVERIFIED, not opened: World Economic Forum (ed.), Quantum Economy Blueprint, January 2024, cited from memory. WEF, Geneva. Observation year 2024. Accessed 2026-11-03.back
- 7European Commission (ed.), Quantum policy page (Quantum Europe Strategy adopted July 2025; Quantum Act planned for 2026; Quantum Technologies Flagship EUR 1 billion from 2018; EuroHPC quantum computers EUR 100 million, October 2022). Directorate-General for Communications Networks, Content and Technology, Brussels. Observation year 2026. Accessed 2026-11-03.back
- 11UNVERIFIED, not opened: McKinsey and Company (ed.), Quantum Technology Monitor 2026 (startup investment USD 12.6 billion in 2025, 6.3 times 2024; company revenues above USD 1 billion; about 97% private funding), taken from search-result summaries; the chart page returned a service error. McKinsey and Company, New York. Observation year 2025. Accessed 2026-11-03.back
- 22UNVERIFIED, not opened: Government of Canada (ed.), National Quantum Strategy, January 2023, cited from memory. Innovation, Science and Economic Development Canada, Ottawa. Observation year 2023. Accessed 2026-11-03.back
- 23UNVERIFIED, not opened: UK Government (ed.), National Quantum Strategy, March 2023, cited from memory. Department for Science, Innovation and Technology, London. Observation year 2023. Accessed 2026-11-03.back
- 3NIST (ed.), NIST releases first 3 finalised post-quantum encryption standards (news release, 13 August 2024; FIPS 203, 204, 205). National Institute of Standards and Technology, Gaithersburg. Observation year 2024. Accessed 2026-11-03.back
- 1Gidney, C., How to factor 2048 bit RSA integers with less than a million noisy qubits, arXiv:2505.15917, submitted 21 May 2025. arXiv, Ithaca. Observation year 2025. Accessed 2026-11-03.back
- 15UNVERIFIED, not opened: NIS Cooperation Group PQC workstream (eds.), A Coordinated Implementation Roadmap for the Transition to Post-Quantum Cryptography (milestones: roadmaps by the end of 2026, high-risk use cases by 2030, as many systems as feasible by 2035), taken from secondary summaries. European Commission, Brussels. Observation year 2025. Accessed 2026-11-03.back
- 4NIST (ed.), Transition to Post-Quantum Cryptography Standards, NIST IR 8547, initial public draft (publication page; published 12 November 2024; comment period closed 10 January 2025). National Institute of Standards and Technology, Gaithersburg. Observation year 2024. Accessed 2026-11-03.back
- 5POST-CLOSE, context only: NIST (ed.), Transition to Post-Quantum Cryptography Standards, NIST IR 8547, final (publication page; document history 27 October 2026, after the 30 September evidence close; abstract refers to Executive Order 14412 and OMB Memorandum M-26-15). National Institute of Standards and Technology, Gaithersburg. Observation year 2026. Accessed 2026-11-03.back
- 6European Commission (ed.), Coordinated Implementation Roadmap for the transition to Post-Quantum Cryptography (library page; roadmap published 23 June 2025; page updated 3 September 2026; the roadmap milestones were not on the page). Directorate-General for Communications Networks, Content and Technology, Brussels. Observation year 2025. Accessed 2026-11-03.back
- 21UNVERIFIED, not opened: US Department of Commerce Bureau of Industry and Security (ed.), interim final rule on export controls for quantum computing items, September 2024, cited from memory. BIS, Washington. Observation year 2024. Accessed 2026-11-03.back
- 24UNVERIFIED, not opened: United Nations General Assembly resolution A/RES/78/287 proclaiming 2025 the International Year of Quantum Science and Technology, 2024, cited from memory. United Nations, New York. Observation year 2024. Accessed 2026-11-03.back
