Abstract: Error-corrected quantum computing demands seamless integration of 10s of thousands of qubits. While superconducting qubits take the leading role in near-term quantum computing, their scaling is limited by the errors and losses in individual qubits as well as the size of the comprising microwave components, and the cryostat that houses them. This beckons extensive materials research to engineer platforms ideal for fault-tolerant and scalable quantum hardware. Here, I discuss hybrid superconductor-semiconductor (super-semi) materials systems as promising platforms for scalable quantum circuits by enabling dissipationless tuning of superconducting qubits and couplers. I will provide an overview of the advances and limitations of the state-of-the-art voltage-tunable superconducting quantum devices demonstrated on the hybrid Al-InAs systems. I will then discuss a few strategies to break through the existing barriers for voltage-tunable devices by integrating the more robust group IV semiconductors into hybrid super-semi systems. Through this approach, I hope to emphasize the significant role materials physics plays in the development of emerging quantum hardware.
Refreshments at 1:30 pm - 1117 John S. Toll Bldg