About the Project
GaSb quantum dots for a room-temperature light-matter interface
The original fellowship investigated semiconductor quantum dots: nanoscale structures that confine electrons and can behave like artificial atoms. The project focused on quantum dots made from gallium antimonide and explored how their interaction with light could be controlled at room temperature.
By developing new materials, devices and experimental techniques, the research sought to create practical interfaces between light and matter. Such interfaces are important for future quantum communication, sensing and information-processing technologies, which require reliable ways to generate, manipulate and detect quantum states.
Royal Society University Research Fellowship Extension: Imperfect quantum devices
Awarded as a new grant in 2017, the fellowship extension broadened the research focus from individual semiconductor light–matter interfaces to quantum devices whose microscopic imperfections could become useful features.
At extremely small scales, apparently identical devices contain natural atomic variations that cannot be precisely copied. The extension explored how this inherent randomness could be measured and harnessed to create unique, unclonable identities for physical objects. This work helped establish a new approach to hardware security based on quantum materials and provided foundations for technologies subsequently developed through Quantum Base, including authentication labels designed to protect products and supply chains from counterfeiting.