Building better superconducting qubits
Abstract: Superconducting qubits are one of the leading platforms for quantum information processing but have not yet reached the performance necessary for useful quantum computation. In this talk, I will discuss current limitations on superconducting qubits using the fluxonium as a case study. I will then present our work addressing these limitations by building superconducting qubits that are better protected from noise. I will present multiple different novel qubit implementations including driven composite superconducting qubits and qubits built using high-kinetic inductance superconductors. To conclude, I will discuss a new tool we have developed for measuring proposed protected qubit implementations in two-dimensional materials and topological insulators.
Bio: Angela Kou is an experimental physicist specializing in superconducting circuits and topological materials. She did her graduate work at Harvard University on microscopic effects of the fractional quantum Hall effect. Angela’s postdoctoral research at Yale University was focused on superconducting qubits, and particularly on the fluxonium. Angela then worked as a senior researcher in the Microsoft Quantum Lab at Delft where she supervised the circuit QED group.
Angela is currently an assistant professor in the UIUC physics department and a member of the Illinois Quantum Information Science and Technology Center (IQUIST) and the Chicago Quantum Exchange (CQE).
To watch online, go to the IQUIST YouTube channel: https://www.youtube.com/channel/UCCzAySwQXF8J4kRolUzg2ww