Direct measurement of microwave loss in Nb films for superconducting qubits
Direct measurement of microwave loss in Nb films for superconducting qubits
Niobium films are a key component in modern two-dimensional superconducting qubits, yet their contribution to the total qubit decay rate is not fully understood. The presence of different layers of materials and interfaces makes it difficult to identify the dominant loss channels in present two-dimensional qubit designs. In this paper, …