Fast flux control of 3D transmon qubits using a magnetic hose

Fast magnetic flux control is a crucial ingredient for circuit quantum electrodynamics (cQED) systems. So far, it has been challenge to implement this technology with the high coherence 3D cQED architecture. In paper, we field inside superconducting waveguide cavity using hose, which allows of transmon qubits on time scales less than 100 ns while maintaining quality factor larger 106. The hose designed as an effective microwave filter not compromise energy relaxation qubit. promising tool fast in various platforms intended information processing and optics.