Figure 7From: Niobium quarter-wave resonator with the optimized shape for quantum information systemsDependence of the assembly’s (left) Q-factor on the cylindrical cavity length \(L_{g}\) for different values of niobium conductivity σ. Copper conductivity is \({\sigma }_{{c}} 4=5.51\cdot 10^{10}\mbox{ S/m}\) [33]Back to article page