Quantum sensors

Accurate measurements form the basis of industrial production, international trade and scientific breakthroughs. However, uncertainty increases with each calibration step between national measurement standards and industrial applications. Traditional methods of measuring electrical resistance involve several conversion steps, each of which adds measurement uncertainty, affecting all calibrated measurements in society.

RISE is developing quantum-based measurement standards that will dramatically improve accuracy at the top of the measurement chain. Graphene-based resistance standards that utilise the quantum Hall effect enable calibration at virtually any resistance level, thereby eliminating the need for additional calibration steps and reducing measurement uncertainty. In practice, this will affect all electrical measurements in Sweden, from production tests in industry to the quality assurance of medical equipment. We are also developing quantum-based pressure measurement standards and working to make them available for use at extremely low temperatures. This will enable the development of quantum computer components and other future technologies.