High - Dimensional Nuclear Spins in Silicon
Our group has recently demonstrated successful fabrication and full control of a 7/2 nuclear spin in a single antimony donor in silicon.
High-dimensional quantum systems present efficient, compact, and robust schemes for error correction and logical encoding in quantum information processing [Gross2021, Gross2021]. Our group has recently demonstrated successful fabrication and full control of a 7/2 nuclear spin in a single antimony donor in silicon [Fuentes2024], leveraging the established infrastructure and fabrication strategies from phosphorus qubits. This advancement opens new avenues for qudit research, which we are actively exploring.
The 123Sb system offers a variety of control protocols, including conventional magnetic resonance (NMR) [Fuentes2024] and nuclear electric resonance (NER), the latter of which we first experimentally demonstrated in 2020 [Assad2020]. Through the development of complex phase-coherent control schemes, we have created logical states such as Schrödinger cat states and performed logical operations on a single antimony donor [Yu2024]. This sophisticated control of a high-dimensional Hilbert space paves the way for exciting research in fault-tolerant quantum computing, including logical encoding, universal logical operations, syndrome detection, and error correction.
[Fuentes2024]
- Publications
- Team members
- Collaborators
Xi Yu, Benjamin Wilhelm, Danielle Holmes, Arjen Vaartjes, Daniel Schwienbacher, Martin Nurizzo, Anders Kringhøj, Mark R. van Blankenstein, Alexander M. Jakob, Pragati Gupta, Fay E. Hudson, Kohei M. Itoh, Riley J. Murray, Robin Blume-Kohout, Thaddeus D. Ladd, Andrew S. Dzurak, Barry C. Sanders, David N. Jamieson, Andrea Morello Creation and manipulation of Schrödinger cat states of a nuclear spin qudit in silicon (2024)
Irene Fernández de Fuentes, Tim Botzem, Mark A. I. Johnson, Arjen Vaartjes, Serwan Asaad, Vincent Mourik, Fay E. Hudson, Kohei M. Itoh, Brett C. Johnson, Alexander M. Jakob, Jeffrey C. McCallum, David N. Jamieson, Andrew S. Dzurak & Andrea Morello Navigating the 16-dimensional Hilbert space of a high-spin donor qudit with electric and magnetic fields (2024)
Serwan Asaad, Vincent Mourik, Benjamin Joecker, Mark A. I. Johnson, Andrew D. Baczewski, Hannes R. Firgau, Mateusz T. Mądzik, Vivien Schmitt, Jarryd J. Pla, Fay E. Hudson, Kohei M. Itoh, Jeffrey C. McCallum, Andrew S. Dzurak, Arne Laucht & Andrea Morello Coherent electrical control of a single high-spin nucleus in silicon (2020)
Barry Sanders at University of Calgary, Namit Anand at NASA Ames, David N. Jamieson at University of Melbourne, Fay Hudson at UNSW Sydney, Andrew Dzurak at UNSW Sydney, Kohei M Itoh at Keio University, Simon Devitt at University of Technology Sydney, Andrew Doherty at University of Sydney, Richard Curry at University of Manchester, Natalia Ares at University of Oxford, Jonathan Gross at Google, Giordano Scappucci at QuTech,TU Delft.