Promising fields like quantum simulation, information, nano-scale (quantum) thermodynamics etc. have been dominated in the past by photonics, optomechanics, cold atoms, NV centers, Josephson junctions, and semiconductor quantum dots. However, the strong coupling of spin waves (or their quanta, the magnons) to microwave modes in high finesse cavities and other experimental breakthroughs, hold the promise of a magnon-based platform for macroscopic quantum effects.
We therefore theoretically explore the coherent coupling of magnons with other (quasi-)particles such as photons, phonons, Cooperons, etc., in order to extend the fields of spintronics, spin caloritronics, and spin mechanics into uncharted regimes.
The figure below illustrates some of the issues in spin cavitronics.