Comparison of dielectric loss in titanium nitride and aluminum superconducting resonators
Comparison of dielectric loss in titanium nitride and aluminum superconducting resonators
Lossy dielectrics are a significant source of decoherence in superconducting quantum circuits. In this report, we model and compare the dielectric loss in bulk and interfacial dielectrics in titanium nitride (TiN) and aluminum (Al) superconducting coplanar waveguide (CPW) resonators. We fabricate isotropically trenched resonators to produce a series of device …