Yun-Pil Shim, Charles Tahan

Superconducting circuits offer tremendous design flexibility in the quantum regime culminating most recently in the demonstration of few qubit systems supposedly approaching the threshold for fault-tolerant quantum information processing. Competition in the solid-state comes from semiconductor qubits, where nature has bestowed some almost magical and very …

M. Veldhorst, R. Ruskov, C.H. Yang, J.C.C. Hwang, F.E. Hudson, M.E. Flatté, C. Tahan, K.M. Itoh, A. Morello, A.S. Dzurak

Spin qubits composed of either one or three electrons are realized in a quantum dot formed at a Si/SiO_2-interface in isotopically enriched …

Yun-Pil Shim, Charles Tahan

Recent improvements in materials growth and fabrication techniques may finally allow for superconducting semiconductors to realize their potential. Here, we build on a recent proposal to construct superconducting devices such as wires, Josephson junctions, and qubits inside and out-of single crystal silicon or germanium. Using atomistic …

Yun-Pil Shim, Charles Tahan

Superconducting circuits are exceptionally flexible, enabling many different devices from sensors to quantum computers. Separately, epitaxial semiconductor devices such as spin qubits in silicon offer more limited device variation but extraordinary quantum properties for a solid-state system. It might be possible to merge the two approaches …

Yun-Pil Shim, Charles Tahan

Recent improvements in materials growth and fabrication techniques may finally allow for superconducting semiconductors to realize their potential. Here we build on a recent proposal to construct superconducting devices such as wires, Josephson junctions, and qubits inside and out-of single crystal silicon or germanium. Using atomistic …

Xiaojie Hao, Rusko Ruskov, Ming Xiao, Charles Tahan, HongWen Jiang

Silicon quantum dots are a leading approach for solid-state quantum bits. However, developing this technology is complicated by the multi-valley nature of silicon. Here we observe transport of individual electrons in a silicon CMOS-based double quantum dot under electron …

Xiaojie Hao, Rusko Ruskov, Ming Xiao, Charles Tahan, HongWen Jiang

Silicon quantum dots are a leading approach for solid-state quantum bits. However, developing this technology is complicated by the multi-valley nature of silicon. Here we observe transport of individual electrons in a silicon CMOS-based double quantum dot under electron …

Yun-Pil Shim, Charles Tahan

Superconducting circuits are exceptionally flexible, enabling many different devices from sensors to quantum computers. Separately, epitaxial semiconductor devices such as spin qubits in silicon offer more limited device variation but extraordinary quantum properties for a solid-state system. It might be possible to merge the two approaches …