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GCRI · Quantentechnologien

Quantensensorik

Quantum sensors use the sensitivity of quantum states to measure time, magnetic fields, gravity, acceleration and rotation with high precision. Atomic clocks already underpin navigation and networks; newer sensors could support navigation without satellites, medical imaging and underground mapping. This page sets out how quantum sensing works, how mature each application is, and what evidence serves the agencies and industries considering it.

02Die Frage

Quantum sensing: how the risk develops.

Measurement, navigation and Earth-science applications. The dossier below sets out how the risk develops, what is measured, where the data come from, how it is modelled and who decides.

Mechanismus

Atoms keep precise time

Atomic clocks use transitions between atomic energy levels as frequency references. They underpin satellite navigation, telecommunications and financial timestamps.

Mechanismus

Interference measures motion and gravity

Atom interferometers split and recombine matter waves to measure acceleration, rotation and gravity, with potential for navigation and subsurface mapping.

Mechanismus

Defects sense magnetic fields

Defects in diamond and other Systeme sense tiny magnetic fields at small scales, with uses in materials science and biology.

Mechanismus

Field use is hard

Laboratory sensitivity often degrades in the field because of vibration, temperature and size constraints. Ruggedising sensors is a major engineering challenge.

03Monitoring

Quantum testbed.

Die Ansicht, die ein Team nutzen würde, um dieses Thema zu verfolgen: seine Messgrößen, Zustände und Entscheidungen. Namen sind Beispiele, Werte sind illustrativ.

Quantum testbed

Quantum sensing · Testbed lab · Device QD-91

Calibration cycleGCRI · Quantentechnologien

Qubits

Q0166940.02In spec
Q1102350.04In spec
Q2178570.05Drifting
Q362320.02In spec
Q4100950.03Drifting

Device

Topology
heavy-hex, illustrative
2Q fidelity
0.994
Zugang
by committee
Kennzeichnung
BEOBACHTET
Quantum testbed: the screen’s structure, terms and states for Quantum sensing.Beispielnamen und beispielhafte Werte; ein Entwurf, kein Eintrag und kein Live-System.
04Domänenübergreifend

Quantum sensors could change measurement in several domains.

05Methoden und Evidenz

How quantum sensing is modelled, measured and tested.

Das Modell, seine Annahmen, seine Daten und seine Unsicherheit in der Form, in der eine Wissenschaftlerin oder ein Ingenieur sie prüfen würde. Die Strukturen folgen veröffentlichten Methoden. Die dargestellten Werte sind illustrativ, keine Befunde.

Systemmodell

The couplings between the systems in quantum sensing: signs of influence, a reinforcing and a balancing loop, and cross-links where stress jumps.

++−+QuantenCyberGemeinschaftenWirtschaftR verstärkendB ausgleichend
Causal loop diagram from the page’s systems; signs show the direction of influence. Illustrative structure for a system dynamics or network model, not estimated couplings.
FAIR-Leitprinzipien · GO FAIR und FORCE11W3C PROV · World Wide Web ConsortiumHinweise zur einheitlichen Behandlung von Unsicherheiten · IPCCCEOS Analysis Ready Data · Committee on Earth Observation Satellites
06Indikatoren

Was gemessen wird und wie gut.

Jeder Indikator trägt seine Einheit, seinen Rhythmus, die Art der zugrunde liegenden Quelle und die Evidenzkennzeichnung, die ein Wert tragen würde. Es werden keine Werte gezeigt: Ein Programm liefert sie unter seiner eigenen Autorität.

IndikatorEinheitTaktQuellentypKennzeichnung
Clock fractional frequency uncertaintydimensionlessper publicationMetrology institute resultsBEOBACHTET
Sensor sensitivityunits per square root of hertzper devicePublished characterisationBERICHTET
Field trials of quantum navigationAnzahljährlichAgency and research reportsBERICHTET
Technology readiness level by applicationreadiness levelje BewertungExpert assessmentsGESCHÄTZT
Size, weight and power of deployed sensorskilograms and wattsper deviceProduct specificationsDEKLARIERT
Commercially available quantum sensor productscount by typejährlichMarket surveysBERICHTET
07Quellen

Woher die Evidenz stammt.

Benannte öffentliche Datensätze und institutionelle Aufzeichnungen, jeweils mit ihrer Lizenzklasse. Quellen auf Vereinbarungsbasis werden nur zu ihren Bedingungen genutzt und niemals weiterveröffentlicht.

QuelleWas es liefertLizenzklasse
BIPM and national metrology institute publicationsTime standards and clock comparisonsPublic, terms per institute
Peer-reviewed sensing literatureExperimental sensitivities and demonstrationsLicence per article
Defence and transport agency reports on alternative navigationAssessments of quantum navigation optionsPublic, terms per agency
OECD quantum technologies policy workOverview of sensing applications and policyPublic, OECD terms
Market surveys of quantum sensingProducts and firmsCommercial; public summaries (to check)
08Entscheidungen

Wer entscheidet und wozu die Evidenz dient.

Quantum Technologies prepares evidence. The decisions below are taken by the authorities named, under their own rules, and never by the platform.

Wer entscheidetDie FrageEvidenz, der diese Seite dient
Transport and navigation authoritiesWhether quantum sensors can reduce dependence on satellite navigationReadiness assessments; field trial evidence
Metrology institutesHow to develop and disseminate time and frequency standardsClock performance evidence
Industry and health SystemeWhere quantum sensors offer practical benefitApplication comparisons

Ergebnisse, die dieses Thema hervorbringt

  • Readiness assessments by sensing application
  • Comparisons of quantum and classical sensor options
  • Evidence notes on navigation resilience
  • Field trial review frameworks
09Kernfragen

Was Fachleute fragen.

Sensing questions concern precision, robustness and use outside the laboratory.

  • How much better than classical instruments is a quantum sensor in real operating conditions?
  • Can it be made small, robust and affordable enough for field use?
  • Could quantum inertial sensors and clocks provide navigation when satellite signals are lost or jammed?
  • What could quantum gravimeters and magnetometers reveal about groundwater, geology and infrastructure?
  • What are the dual-use implications, for example for detecting submarines or underground structures?
10Mechanismen

Mechanismen und Treiber.

Quantum sensors exploit the fact that quantum states are disturbed by tiny changes in their environment. Atomic clocks measure time by the frequency of atomic transitions. Atom interferometers split and recombine clouds of cold atoms to measure acceleration and gravity. Defects in diamond and other materials act as nanoscale magnetometers. The same sensitivity that gives precision also makes sensors vulnerable to noise, vibration and temperature changes.

The step from laboratory to field is the main challenge. Many quantum sensors require lasers, vacuum Systeme and careful isolation. Engineering progress is reducing size and power, but performance in a moving vehicle or harsh environment is often well below laboratory results.

11Methoden und Daten

Wie es untersucht wird und wo die Methoden enden.

Methode oder DatenWas es zeigtGrenzen
Laboratory metrologyFundamental sensitivity and stabilityLaboratory performance rarely transfers directly to the field
Field trialsPerformance in vehicles, aircraft, boreholes or shipsFew trials, often reported by developers
Comparison with classical sensorsWhether the quantum device adds real valueClassical sensors also improve
Earth observation data fusionCombining quantum gravimetry with satellite and ground dataInterpretation depends on geophysical models
13Where this page’s references

Where this page’s references lead.

Die Gremien und Dokumente, vor deren Hintergrund diese Seite gelesen wird. Status und Ausgaben ändern sich; jeder Link führt zur herausgebenden Stelle.

14Fragen

Fragen und Antworten.

What is a quantum sensor?
A device that uses quantum states, such as atomic energy levels or superposition, to measure physical quantities with high precision.
Are atomic clocks quantum technology?
Yes. They use quantum transitions in atoms and have been in use for decades, underpinning satellite navigation and network timing.
Can quantum sensors replace GPS?
Quantum inertial sensors and clocks could support navigation when satellite signals are unavailable, but field systems are still being developed and tested.
Is quantum sensing already in use?
Yes, in some forms. Atomic clocks are long established. Newer sensors such as quantum gravimeters and magnetometers are in research, trials and early commercial use.
Could quantum sensors replace satellite navigation?
Not entirely. Quantum inertial sensors could reduce drift when satellite signals are unavailable, but they measure motion relative to a starting point and still accumulate some error over time.
Why is sensing considered dual use?
Because the same precision that helps map groundwater could detect hidden objects or structures. That raises questions of export control and responsible use.
BerichteBeitragen

Evidenz von dieser Seite aus beitragen.

Berichte is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

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