Speaker
Description
High-spin nuclei have emerged as a promising resource for quantum computing, owing to their large, high-dimensional state spaces and the maturity of the solid-state hosts in which they reside. Because each nucleus behaves as a qudit rather than a two-level qubit, its extra dimensions can be used to encode and protect quantum information, opening new routes to quantum error correction.
Exploiting these dimensions at scale, however, remains challenging, since it also demands the ability to entangle individual nuclei and link them across a device. In our work, we study germanium-73 nuclei in silicon, a CMOS-compatible host in which each nucleus is a ten-level qudit. We investigate entanglement schemes in which an electron mediates the interaction between nuclei, using electron shuttling to establish entanglement over extended distances, and we model the realistic errors that arise during these processes.
With this approach, we aim to develop a building block for scalable, fault-tolerant quantum computing based on these high-dimensional nuclei.
