Western Kentucky University
Department of Physics and Astronomy

Colloquium

Dr. Paul Baity

Brookhaven National Laboratory

"The Design of Superconducting Quantum Devices: From Fundamental Operation to Model-Informed Optimization"

January 29, 2024 @ 4:00 pm in KTH 2038 (Zoom ID: 93595838321)

About the Speaker

Paul Baity is a research scientist in the Computing for National Security Group within Computational Science Initiative at Brookhaven National Laboratory. He earned his Ph.D. in Physics from Florida State University while studying high-temperature superconductivity at the National High Magnetic Field Laboratory. Before joining the CSI in early 2023, he was a postdoctoral researcher within the Quantum Circuits Group at the University of Glasgow, where his research focused on the design, fabrication, and testing of superconducting quantum circuits and hybrid superconducting-spin-wave devices. His current research interests focus on the optimal design, measurement, and operation of superconducting quantum devices.

Abstract

Superconducting circuits are one of the most widely used systems for quantum computing, and many of the key accomplishments in this field have been performed using superconducting-based quantum processors. Currently, however, the performance of such devices is limited by various sources of error which prematurely decohere qubits out of their quantum states, and the improvement of performance through the mitigation and control of qubit errors is therefore a critical step for the implementation of robust, large-scale quantum computing. To assist in the development of novel error mitigation strategies, Optimal Experimental Design (OED) augments experimental procedures with high-performance computing techniques to maximize the information gained from a limited number of iteratively designed experiments. In this presentation, I will discuss the fundamental building blocks of superconducting quantum processors as well as demonstrate how our group is establishing an OED protocol to develop mitigation strategies against quasiparticle poisoning in state-of-the-art quantum processors.