Investigation of coupling of mechanical vibrational modes to superconducting qubits

Investigation of the coupling of mechanical vibrational modes to superconducting qubits in a cryogenic refrigeration system motivates more systematic study. We have carried out a series of low frequency experiments, monitoring the performance of our superconducting transmon qubits. The unique design of the entire setup allows observations of the qubit as well as the readout resonator parameters when an external low frequency drive is applied. Initial results indicate potentially different mechanisms from the low frequency drive affecting the qubit and the readout resonator.