Grant: Alliance Grants

Quantum Science is responsible for many important technologies: in the 20th century it enabled such things as semiconductors, MRI scanners, GPS positioning and solar cells. New capabilities have emerged in the 21st century that now provide unprecedented control and measurement of certain fundamental quantum phenomena. Through this research HQP will investigate how to harness so-called quantum 'weirdness' that can emerge when magnetic materials interact with light. Results from their work will enable applications for quantum cryptography, communication and sensing. The goal will be to develop theoretical and experimental protocols for creating and manipulating entangled states in a platform whose magnetic properties exhibit great promise for long distance transmission of quantum information. Spin excitations in magnetic materials-called 'magnons'-have recently attracted attention for the control and manipulation required to facilitate quantum information distribution and processing. Very recently, entanglement between a superconducting qubit and a magnetic sample has been demonstrated, showing that it is possible to detect a single magnon. Because quantum information processing requires fast and reliable operation, controlling the magnon dynamics of a multi-spin systems is an essential step to successfully integrating these materials into quantum devices. This project will advance National Quantum Science missions by investigating the dynamics of multi-spin systems by creating hardware and protocols for the development and early adoption of new quantum computational and sensing capabilities; and enabling quantum secure communications. Results will provide a basis upon which efficient hybrid magnetic based devices can be designed for quantum information transfer for general application in several quantum technologies.