Quantum Computing with Silicon Spins (QC-DCEP)

(45:30 + Q&A) Dr. Dominik Zumbuhl, Univ of Basel -- Presentation from 2023 Workshop on Quantum Computing: Devices, Cryogenic Electronics and Packaging ...  (QC-DCEP)
Summary: In this presentation, I will cover recent progress from the NCCR SPIN, the Swiss National Program on Quantum Computation with silicon and germanium spin qubits. Some of the highlights include ultrafast qubit operation, taking only 1 ns to coherently rotate a spin from pointing up to down; operation of spin qubits at temperatures up to 5 K, where vast cooling power becomes available, making possible future on-chip integration of the classical control electronics; and finally demonstration of sweet spots with strongly enhanced coherence and operation of a 2-qubit gate with highly anisotropic exchange, allowing for high fidelity gate operation while operating at high speeds.
Dr. Dominik Zumbuhl, Univ of Basel: After a Physics Diploma from ETH Zürich and MSc from Stanford University, Dominik received his PhD at Harvard University in 2004 on quantum coherence and spin in semiconductor quantum dots. After a brief postdoc at MIT, Dominik started his own group in 2006 at the University of Basel where he has been working since. In 2008, he received a starting grant in the first ERC call. He was promoted to associate professor in 2012 and to full professor in 2023. He served as Department Chair from 2015-2019 and since 2021, he is the director of the NCCR SPIN, the Swiss National Program on Quantum Computing with Si and Ge spins. Dominik’s research interests are in quantum transport experiments in semiconductor nanostructures, focusing on quantum computation with spins, coherence, interactions, quantum condensed matter at ultralow temperatures and machine learning for quantum devices.

Additional videos from the QC-DCEP Workhop can be accessed at https://attend.ieee.org/qc-dcep.