Tuning high-Q superconducting resonators by magnetic field reorientation
Tuning high-Q superconducting resonators by magnetic field reorientation
Superconducting resonators interfaced with paramagnetic spin ensembles are used to increase the sensitivity of electron spin resonance experiments and are key elements of microwave quantum memories. Certain spin systems that are promising for such quantum memories possess 'sweet spots' at particular combinations of magnetic fields and frequencies, where spin coherence …