Superconducting qubits based on Al Josephson junctions and coplanar waveguide resonators

Abstract

Superconducting qubits are one of the most promising candidates for the physical implementation of quantum computing. In this paper, a brief review of superconducting qubits based on Josephson tunnel junctions and coplanar waveguide resonators is presented, focusing on Al/Al2O3/Al junctions, fabrication techniques, and important areas of opportunity for these devices. Simulation results of Al-based MIM capacitor structures and coplanar waveguide resonators are presented as an initial approach to the study of these devices and the impact of certain design parameters on their performance.