Speaker: Adam Mills (LPS) Title:Â Si/SiGe Spin Qubits and Foundry Devices at LPS Abstract:Â Spin qubits in silicon are an attractive platform for quantum computing because of their high areal density, long coherence times, and compatibility with semiconductor fabrication techniques developed for classical computing applications. Operation of large-scale fault-tolerant quantum computers will require achieving low error rates in quantum control as well as state preparation and readout. In this talk I will review how single-spin Loss-DiVincenzo qubits are engineered in a Si/SiGe heterostructure, discuss the challenges associated with achieving high-fidelity single- and two-qubit gates as well as state preparation and measurement, and finally present results demonstrating overall high-fidelity operation of a 2-qubit register. The end of my talk will highlight work performed at LPS on SLEDGE devices received from HRL through the Qubits for Computing Foundry with discussion about results achieved so far. Finally, I will show our plans for future research paths including investigating correlated errors in single-spin qubits, designing devices with the foundry, and developing experimental control protocols to realize SAGE [1] qubit demonstrations. [1] N. Foulk et al., Singlet-only Always-on Gapless Exchange Qubits with Baseband Control, arxiv:2501.18589