Single-electron quantum optics for quantum-enhanced measurements
Short Name: SEQUOIA, Project Number: 17FUN04
Developing new measurement techniques to support the development of semiconductor quantum technology.
In the quantum world, electrons can exhibit wave-like properties, and this behaviour is being exploited in new technologies based on developments in the field of single-electron quantum optics. Fabricated from semiconductor materials, these novel devices will include applications such as electromagnetic field sensing.
The challenge is to develop components that harness the wave-like nature of single electrons, understand their quantum behaviour, and create the tools needed for device characterisation.
This project has fabricated semiconductor-based devices exploiting quantum properties of individual electrons for innovative sensors and other components, such as on-demand single electron sources. The methods needed to characterise the electrons’ so-called quantum states were also developed.
For electric and magnetic field detection, a new sensing technique was used to demonstrate high spatial and time resolution (~ 1 µm and ~ 1 ns or below, respectively).
Both practical and theoretical results from the project will be used to promote the uptake of single-electron wave packet devices, and the associated measurement techniques, to characterise their performance.
Physical Review Letters
Physical Review B
Physical Review B
Nature Communications
Physical Review Letters
Physical Review B