- A wealth of hybrid quantum systems is discussed in the context of converting quantum information between various frequency domains, such as from microwave to optical frequencies. Besides conversion concepts based on opto-mechanics or electromechanics, the strong coupling regime of spin excitations interacting with microwave resonators offers an alternative pathway to this goal. We present a hybrid system consisting of tunable resonators and a helimagnonic mode . The tunable resonator is a superconducting coplanar microwave resonator shunted to ground via a dc-SQUID. Thus the resonator is frequency tunable using a magnetic field bias. At low temperatures and close to zero magnetic field helimagnetic modes form in Cu2OSeO3(CSO) crystals, as the system orders magnetically in a helical spin structure. We investigate the magnetization dynamics of the CSO as millikelvin temperatures using broadband techniques and present initial results regarding the coupling of CSO to flux-tunable microwaveA wealth of hybrid quantum systems is discussed in the context of converting quantum information between various frequency domains, such as from microwave to optical frequencies. Besides conversion concepts based on opto-mechanics or electromechanics, the strong coupling regime of spin excitations interacting with microwave resonators offers an alternative pathway to this goal. We present a hybrid system consisting of tunable resonators and a helimagnonic mode . The tunable resonator is a superconducting coplanar microwave resonator shunted to ground via a dc-SQUID. Thus the resonator is frequency tunable using a magnetic field bias. At low temperatures and close to zero magnetic field helimagnetic modes form in Cu2OSeO3(CSO) crystals, as the system orders magnetically in a helical spin structure. We investigate the magnetization dynamics of the CSO as millikelvin temperatures using broadband techniques and present initial results regarding the coupling of CSO to flux-tunable microwave resonators.…
