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GCRI · Technologies quantiques

Dépendances et conséquences

Quantum technology depends on rare materials, specialised components, cryogenics, lasers and scarce expertise, and its effects reach every system that relies on cryptography, precise timing or navigation. This page sets out the causal, physical, economic and social links between quantum technologies and other systèmes, how disruption could travel along them and how the platform analyses them. A dependency map describes connections; it is not a forecast of when any capability will arrive.

Méthodes STIM
5
Méthodes canoniques appliquées par ce domaine
Sujets
8
Pages thématiques sur le terrain
Homologues
5
Plateformes dans des domaines partagés à travers le réseau
Séries de rapports
2
Séries de Reports auxquelles il contribue
01What quantum depends on

Upstream dependencies.

DépendancePourquoi c'est importantExposition
Cryogenics and heliumMany qubit technologies operate near absolute zeroSpecialised refrigeration and constrained helium supply
Lasers, photonics and vacuum systèmesControl and readout for trapped ions, atoms and photonsFew specialised suppliers
Advanced materials and fabricationSuperconducting circuits, isotopically pure materials, detectorsConcentrated manufacturing capacity
Classical computing and control electronicsError correction and control require fast classical processingShares supply chains with semiconductors
Skilled peoplePhysics, engineering and software expertiseSmall, internationally mobile talent pool
02Suivi

Vue d'ensemble du domaine.

L'écran qu'une équipe utiliserait pour suivre ce sujet : ses mesures, ses états et ses décisions. Les noms sont des exemples et les valeurs sont illustratives.

Field overview: the screen’s structure, terms and states for Quantum technologies.Noms donnés à titre d'exemple et valeurs illustratives ; une conception, non un enregistrement ni un système en service.
03What depends on quantum outcomes

Downstream consequences.

Digital trust

Cryptography

Communications, payments, software updates and identity that rely on public-key cryptography must migrate before a capable quantum computer exists.

Timing and navigation

Precision

Quantum clocks and sensors could reduce dependence on satellite navigation, which matters for telecoms, power grids and finance.

Economy and security

Strategic competition

Export controls, research security and concentration of capability shape who benefits and who is exposed.

04How disruption could travel

Mechanisms.

The cryptographic channel is the clearest. Many systèmes share the same algorithms and libraries, so a weakness in one class of algorithm is a common-mode failure across sectors. Long-lived devices, embedded systems and archived data extend exposure far into the future, and a migration is only as strong as the slowest supplier. Infrastructures de paiement et de marché at The Global Risks Alliance (GRA) examines what this means for financial plumbing.

A second channel is expectation. Overstated claims can redirect investment and policy, and a correction can strand both. The platform therefore reports demonstrated results separately from projections; see calcul quantique and responsible quantum innovation.

05Méthode

How dependencies are analysed.

Analysis uses les probabilités et la statistique to treat uncertain timelines as distributions rather than dates, and cryptographic analysis to map where vulnerable algorithms sit. Each map states its assumptions and uncertainty; see méthodes et incertitude. Back to la vue d'ensemble du domaine.

06Questions

Questions et réponses.

Is a dependency map a forecast of when quantum computers will break encryption?
No. It shows where systems would be exposed and how disruption could spread. Timelines are uncertain and are reported as such.
Why does the slowest supplier matter?
Because a system is only as secure as its weakest component. If one supplier in a chain has not migrated, data passing through it may remain exposed.
Why are skills a dependency?
Because the field needs rare combinations of physics, engineering and software expertise, and a shortage slows research, deployment and the cryptographic migration alike. See compétences quantiques.
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