November 13, 2024

Quantum Computing with High-Dimensional Nuclear Spins in Silicon

IBosonic logical encoding in the infinite-dimensional Hilbert space of quantum optics and cQEDs has grown into an exciting field of theoretical and experimental effort. It was recently proposed that similar principles can be applied to the -- not infinite, but large -- Hilbert space of single-object quantum systems, known as qudits. In this seminar, we present recent research from Prof. Andrea Morello's lab at UNSW Sydney, on the creation and manipulation of Schrödinger cat states in a single I = 7/2 123Sb nuclear spin qudit in silicon. We also show how error-free virtual-SNAP gates can be implemented through software only. The high-fidelity logical operation of this powerful qudit platform will enable innovative new experiments in quantum information processing and quantum error correction within a scalable, manufacturable semiconductor platform (arXiv:2405.15494v1).

The seminar is presented by Xi Yu, with Dean Poulos co-hosting the event.

• Steve (Xi) Yu
  PhD Student
  UNSW Sydney
  4th-year PhD student at UNSW Sydney, supervised by Prof. Andrea Morello. My research focuses on logical encoding for high-spin nuclei in silicon and benchmarking qudit systems. I am also interested in using single donor nuclear spins as a testbed for quantum foundations and quantum sensing. Previously, School of Electrical Engineering and Telecommunications, UNSW Sydney.
  
  
  
• Dean Poulos
  Customer Success Engineer
  Quantum Machines
  Dean is a Customer Success Physicist for QM based in Sydney, Australia, who works with research groups and companies in APAC. He is proficient in using QUA to measure superconducting qubits, spin qubits and other platforms, and helps develop standard calibration software. Dean has a background in measuring multi-donor based spin qubits at UNSW, and software engineering related to qubit calibration, compiler architecture and machine learning.
  
  

For any follow-up questions: Dean.Poulos@quantum-machines.co.