Anita Fadavi Roudsari, Quantum Technology, Department of Microtechnology and Nanoscience, presents her lecture for obtaining a docent degree.
Title of the lecture: Towards high quality superconducting qubits, from materials to circuits
Overview
- Date:Starts 12 March 2024, 10:00Ends 12 March 2024, 11:00
- Location:Kollektorn, MC2
- Language:English
Abstract:
Implementation of a multi-qubit superconducting quantum processor involves overcoming various obstacles in multiple disciplines of science and engineering.
In my lecture I will focus on three of these hurdles: (i) repeatability and yield of Josephson junction fabrication and minimizing the frequency spread of superconducting qubits on the wafer scale, (ii) improving the relaxation time of qubits on high-quality aluminum films by gaining a deeper understanding of surfaces and interfaces using characterization methods, microwave modeling and measurements, and (iii) low-noise and wide-band amplification of qubit readout signal by state-of-the-art dispersion engineered parametric amplifiers. The story behind the above paths and the progress of each one is presented pedagogically.
Coffee will be served after the lecture.