Super-Semi Heterostructures for Novel Qubit Geometries

Superconducting qubits are the current leaders in quantum computing technology. They utilize shunt capacitors and Josephson junctions made within a superconducting circuit to create a two-level computational subspace. Over the past 15 years, superconducting qubits have seen a seven-fold increase in coherence time and energy relaxation. However, current state-of-the-art qubits remain bottlenecked by material imperfections which can create dielectric loss at interfaces and across Josephson junctions.

Our lab, in close collaboration with NIST-Boulder, is working on new materials and novel device architectures to reduce loss within superconducting qubits.

Affiliated Researchers