234 citations · 346 across the 4 of their papers we have counts for
4 papers
Repetitive single electron spin readout in silicon
J. Yoneda, K. Takeda, A. Noiri +5
Single electron spins confined in silicon quantum dots hold great promise as a quantum computing architecture with demonstrations of long coherence times, high-fidelity quantum log…
A fault-tolerant addressable spin qubit in a natural silicon quantum dot
K. Takeda, J. Kamioka, T. Otsuka +8
Fault-tolerant quantum operation is a key requirement for the development of quantum computing. This has been realized in various solid-state systems including isotopically purifie…
Charge-noise-free Lateral Quantum Dot Devices with Undoped Si/SiGe Wafer
T. Obata, K. Takeda, J. Kamioka +6
We develop quantum dots in a single layered MOS structure using an undoped Si/SiGe wafer. By applying a positive bias on the surface gates, electrons are accumulated in the Si chan…
Characterization and Suppression of Low-frequency Noise in Si/SiGe Quantum Point Contacts and Quantum Dots
K. Takeda, T. Obata, Y. Fukuoka +5
We report on the effects of a global top gate on low-frequency noise in Schottky gate-defined quantum point contacts (QPCs) and quantum dots (QDs) in a modulation-doped Si/SiGe het…