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COMPANY RESEARCH · Enabling technology

QET Sweden

QET Sweden develops low-noise microwave amplifiers for measuring quantum devices. Vidar targets the weak-signal readout chain rather than quantum processing itself. Chalmers also identifies the company as Quantum Enabling Technologies.

Official website ↗
Sweden · Research brief reviewed 22 Sept 2026

Initial record: initial research brief recorded.

Review history 1 record

Record dates use UTC and show when an assessment or clarification was saved. Review dates show the evidence check. Earlier records were recovered from QubitWire’s source history; no earlier score movement is inferred.

  1. Initial research brief recorded

    Research reviewed 22 Sept 2026

    Open this evidence record →

    Sources in this record (3)
Identity & attribution
Organization record
QET Sweden (organization-qet-sweden)
Recorded role
Enabling Technologies, Cloud & Infrastructure
Recorded aliases
No aliases recorded in this assessment.
Name and period
No dated name or ownership transition is recorded here. An alias is a search aid, not evidence of a legal ownership relationship.
Product scope
Traveling-wave parametric amplifiers and associated control electronics for quantum readout.

A company profile may discuss several systems. Capabilities remain attached to the product and conditions named in each source; they do not transfer automatically to related organizations. A verified security relationship has not been attached to this record.

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TECHNOLOGY & ACCESS

What it does. Where it fits.

Traveling-wave parametric amplifiers and associated control electronics for quantum readout.

Who should look closer

Editorial inference: Cryogenic quantum teams evaluating amplifier integration and readout-noise requirements.

QubitWire’s editorial assessment of practical fit.

Amplifier quotation and technical enquiry

The official company site offers quotation requests and describes Vidar collaboration with SCALINQ. Confirm model availability, packaging, operating conditions and integration support directly.

Check the current access route ↗
DOCUMENTED EVIDENCE

What the sources establish

A Vinnova-hosted project outcome says Vidar was commercialized and sold, while Mimir control electronics reached a functional prototype. The agency identifies QET Sweden AB as coordinator but says participants supplied the outcome narrative.

vinnova.se ↗

What remains unresolved

Treat commercialization outcomes as project-reported. A functional controller prototype is distinct from a commercial system, and amplifier specifications do not establish processor performance.

The next question to watch

Which current model datasheets and external installation results show gain, added noise, bandwidth and stability together?

A research question, not a promised milestone.

QubitWire coverage

No published QubitWire stories currently match this organization. The evidence sources below provide the starting point.

Open research questions

Editorial questions for this profile. No reviewed closure decision has been recorded; unanswered questions do not lower the official score.

Open research question

Which current model datasheets and external installation results show gain, added noise, bandwidth and stability together?

What evidence would help

A source addressing this question must identify the named system, experiment or deployment, its conditions, measured outcome and remaining limitations. Are performance limits stated under realistic loads and operating conditions?

What would resolve it?

An editorial review must explain which part of this question the evidence resolves. A roadmap or an announcement alone does not close it.

No resolved, partial or disputed outcome is asserted without a reviewed transition and its evidence.

Suggest evidence
Open research question

Which named system or service can I use under the documented access route?

What evidence would help

Check the current terms for amplifier quotation and technical enquiry. Identify the system version, eligibility, restrictions and whether the result used hardware or simulation.

What would resolve it?

Current primary documentation must identify the offering, eligible user and access conditions. An unspecified company-level access claim is insufficient.

No resolved, partial or disputed outcome is asserted without a reviewed transition and its evidence.

Suggest evidence
Open research question

Are performance limits stated under realistic loads and operating conditions?

What evidence would help

Provide the source location, relevant product or generation, workload, resource constraints and reported uncertainty. Keep measurements, simulations and announced targets distinct.

What would resolve it?

A source reviewer must map the evidence to this exact scope. Missing disclosure remains unknown; it is not technical failure.

No resolved, partial or disputed outcome is asserted without a reviewed transition and its evidence.

Suggest evidence

Questions are drawn from the existing brief and sector reading guide. Research brief reviewed 22 Sept 2026. Following stores a local bookmark; it does not send email alerts or imply a scheduled review.

Since your review

Scope: QET Sweden. Reading a page never marks its records reviewed.

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Existing material records remain available after setup. Routine rechecks and initial entries are excluded from material counts.

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A claim-to-assessment source trace is not available for this directory record.

CHECK THE ORIGINALS

Sources & evidence

  1. QET Sweden ↗Vendor product description · Publication date not stated

    Describes TWPA products and SCALINQ collaboration.

  2. Vinnova project 2024-00529 ↗Government-hosted participant project report · 21 Feb 2026

    Identifies coordinator and distinguishes amplifier sales from controller-prototype status; narrative is participant-supplied.

  3. Chalmers spin-offs ↗Institutional company identification · Publication date not stated

    Connects Quantum Enabling Technologies with QET Sweden and Gothenburg.