Scientists Watched a Single Quantum of Sound Disappear
A microscopic resonator revealed the sudden loss of one phonon. Repeated measurements made the fleeting change visible.
Single Quantum
Turns weak optical signals into timed photon-detection events for quantum optics and communication.
Netherlands · Research reviewed 7 Sept 2026Initial record: initial assessment 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.
Initial assessment recorded
Assessment reviewed 7 Sept 2026 · Research reviewed 7 Sept 2026
Identity & attribution
- Organization record
- Single Quantum
- Recorded role
- Superconducting nanowire single-photon detectors
- 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
- Superconducting nanowire detectors with cryogenic cooling and room-temperature driver electronics.
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.
Report an identity issue →What it does. Where it fits.
Superconducting nanowire detectors with cryogenic cooling and room-temperature driver electronics.
Who should look closer
Teams that need low-noise photon counting and can accommodate cryogenic equipment and periodic maintenance.
QubitWire’s editorial assessment of practical fit.Configured detector systems
Specification and pricing are arranged with the supplier. Eos packages include cooling and electronics; maintenance requirements should be included in procurement.
Check the current access route ↗What the sources establish
A Vienna-led study operated a 248 km fiber link using Single Quantum detectors. Its roughly 38 ps timing figure includes detector and time-tagger contributions; it is not a standalone detector specification.
What remains unresolved
Detection efficiency, timing jitter and count-rate limits depend on configuration. The cited network result measures a complete experimental setup and does not independently validate every current detector specification.
The next question to watch
Can a specified detector configuration sustain required efficiency and timing at the application’s actual count rate and maintenance cycle?
A research question, not a promised milestone.QubitWire coverage
Open research questions
Editorial questions for this profile. No reviewed closure decision has been recorded; unanswered questions do not lower the official score.
Can a specified detector configuration sustain required efficiency and timing at the application’s actual count rate and maintenance cycle?
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.
Which named system or service can I use under the documented access route?
What evidence would help
Check the current terms for configured detector systems. 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.
Are the interfaces compatible with your existing hardware?
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.
Since your review
Scope: Single Quantum. Reading a page never marks its records reviewed.
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From claim to assessment
These are the existing assessment claims and their recorded criterion links. A source link is not an independent replication. New research does not change these published ratings automatically.
| Recorded claim & source | Assessment linkage | Provenance & limits |
|---|---|---|
| Source 1 Eos products combine detector channels, closed-cycle cooling and driver electronics. The supplier documents rackmount R12/R48 options, remote control and cold-head/compressor maintenance intervals. Single Quantum Excellence Line ↗Exact source locationNo page, figure or section locator is recorded. Open the source and check the claim in its original context. | Delivery Current multi-channel products have operating-component details, maintenance intervals and supplier support. | Organization-originated source Source type: Vendor product documentation. Independent replication, experiment date and source-version fingerprint are not separately recorded. Product and measurement scope: read the named system and conditions in this claim. No normalized product revision is assigned. Review recorded 7 Sept 2026. Research brief reviewed 7 Sept 2026. These dates do not establish publication or experiment dates. Report an issue with this claim → |
| Source 2 Documents gating, timing stabilization and a TTL converter for integration with measurement electronics. Published performance figures are supplier specifications. Single Quantum detector add-ons ↗Exact source locationNo page, figure or section locator is recorded. Open the source and check the claim in its original context. | Integration TTL conversion and demonstrated interoperability with time-tagging equipment support instrument integration. | Organization-originated source Source type: Vendor technical documentation. Independent replication, experiment date and source-version fingerprint are not separately recorded. Product and measurement scope: read the named system and conditions in this claim. No normalized product revision is assigned. Review recorded 7 Sept 2026. Research brief reviewed 7 Sept 2026. These dates do not establish publication or experiment dates. Report an issue with this claim → |
| Source 3 Vienna researchers used Single Quantum detectors and Swabian time taggers in a 248 km deployed-fiber experiment. They report about 38 ps combined detector/timing jitter; the approximately 80% detector efficiency is explicitly manufacturer-supplied. Continuous entanglement distribution over a transnational 248 km fiber link ↗Exact source locationNo page, figure or section locator is recorded. Open the source and check the claim in its original context. | Capability External researchers report working photon detection and timing performance within a deployed-fiber experiment. Use in practice An externally authored paper identifies the installed detectors and reports actual experimental outcomes. Integration TTL conversion and demonstrated interoperability with time-tagging equipment support instrument integration. | External source; collaborators may be involved Source type: Peer-reviewed external-user research. Independent replication, experiment date and source-version fingerprint are not separately recorded. Product and measurement scope: read the named system and conditions in this claim. No normalized product revision is assigned. Review recorded 7 Sept 2026. Research brief reviewed 7 Sept 2026. These dates do not establish publication or experiment dates. Report an issue with this claim → |
| Source 4 Offers superconducting nanowire photon detection across research, QKD and imaging product lines with supplier-assisted specification selection. Single Quantum product overview ↗Exact source locationNo page, figure or section locator is recorded. Open the source and check the claim in its original context. | Delivery Current multi-channel products have operating-component details, maintenance intervals and supplier support. | Organization-originated source Source type: Vendor overview. Independent replication, experiment date and source-version fingerprint are not separately recorded. Product and measurement scope: read the named system and conditions in this claim. No normalized product revision is assigned. Review recorded 7 Sept 2026. Research brief reviewed 7 Sept 2026. These dates do not establish publication or experiment dates. Report an issue with this claim → |
Revision and evidence-family boundaries
Record reference: c67a7a6e9cfd8343ea6c3b3fb2e7dde99bd74d9ec59f11085b4f7c8f51449a2e. Read prior recorded revisions.
Repeated coverage can describe the same experiment. The assessment does not contain a reviewed claim-family grouping, so the number of links is never shown as a replication count. Source pages can change independently of this saved assessment; the original source text is not archived here.
Sources & evidence
- Single Quantum Excellence Line ↗Organization-originated source · Publication date not stated
Eos products combine detector channels, closed-cycle cooling and driver electronics. The supplier documents rackmount R12/R48 options, remote control and cold-head/compressor maintenance intervals.
- Single Quantum detector add-ons ↗Organization-originated source · Publication date not stated
Documents gating, timing stabilization and a TTL converter for integration with measurement electronics. Published performance figures are supplier specifications.
- Continuous entanglement distribution over a transnational 248 km fiber link ↗External source (may be a collaborator) · 17 Oct 2022
Vienna researchers used Single Quantum detectors and Swabian time taggers in a 248 km deployed-fiber experiment. They report about 38 ps combined detector/timing jitter; the approximately 80% detector efficiency is explicitly manufacturer-supplied.
- Single Quantum product overview ↗Organization-originated source · Publication date not stated
Offers superconducting nanowire photon detection across research, QKD and imaging product lines with supplier-assisted specification selection.
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