EIPBN 2025

Plenary Speaker

Prof. Joris Keizer

University of New South Wales, Australia

The Importance of Atomic Precision for Realising Quantum Processors in Silicon

The realisation of a large-scale error corrected quantum computer relies on our ability to reproducibly manufacture qubits that are fast, highly coherent, controllable and stable. The promise of achieving this in a highly manufacturable platform such as silicon requires a deep understanding of the materials issues that impact device operation. In this talk I will demonstrate how we engineer every aspect of the processor using atom qubits in silicon for fast, controllable exchange coupling, fast, high fidelity qubit initialisation and read-out; low noise all epitaxial gates for highly stable qubits; and efficient, high fidelity qubit control leading to the demonstration of the highest fidelity Grover’s algorithm to date. I will also discuss our latest results in quantum analogue processors. Here I will present an atomically engineered quantum feature generator in which we use quantum states to increase the accuracy of classical machine learning. I will also show our latest results in analogue simulation realising Feynman’s dream of directly simulating materials by the atomic precision placement of atoms in silicon.

About Prof. Joris Keizer

Joris Keizer is a tenured A/Prof at the School of Physics at the University of New South Wales (Sydney, Australia). Joris is widely respected as an expert in atomic scale quantum device fabrication. He is currently the team lead for developing deterministic atomic-precise dopant placement and 3D fabrication techniques for error-correction at Silicon Quantum Computing (SQC). His work to-date (6 years in academia, 7 years in industry) has focused on the fabrication of atomic-scale devices with the goal of realizing a surface code architecture in silicon.

Joris Keizer