Reducing microwave loss in superconducting resonators due to trapped vortices
Reducing microwave loss in superconducting resonators due to trapped vortices
Microwave resonators with high quality factors have enabled many recent breakthroughs with superconducting qubits and photon detectors, typically operated in shielded environments to reduce the ambient magnetic field. Insufficient shielding or pulsed control fields can introduce vortices, leading to reduced quality factors, although increased pinning can mitigate this effect. A …