A quantum-dot spin qubit with coherence limited by charge noise and fidelity higher than 99.9%

Jun Yoneda, Kenta Takeda, Tomohiro Otsuka, +10

Nature Nanotechnology

Quantum ScienceEngineeringQuantum ComputingPhysicsQuantum-dot Spin Qubit +7

A fault-tolerant addressable spin qubit in a natural silicon quantum dot

Kenta Takeda, Jun Kamioka, Tomohiro Otsuka, +8

Science Advances

Fast Electrical Control of Single Electron Spins in Quantum Dots with Vanishing Influence from Nuclear Spins

Jun Yoneda, Tomohiro Otsuka, Takashi Nakajima, +7

Physical Review Letters

Robust micromagnet design for fast electrical manipulations of single spins in quantum dots

Jun Yoneda, Tomohiro Otsuka, T. Takakura, +9

Applied Physics Express

Robust Single-Shot Spin Measurement with 99.5% Fidelity in a Quantum Dot Array

Takashi Nakajima, Matthieu R. Delbecq, Tomohiro Otsuka, +11

Physical Review Letters

EngineeringMagnetic ResonanceQuantum MeasurementElectron Spin StatesQuantum Sensing +15

Quantum Dephasing in a Gated GaAs Triple Quantum Dot due to Nonergodic Noise

Matthieu R. Delbecq, Takashi Nakajima, Peter Stano, +8

Physical Review Letters

Detection and control of charge states in a quintuple quantum dot

Takumi Ito, Tomohiro Otsuka, S. Amaha, +8

Scientific Reports

Full control of quadruple quantum dot circuit charge states in the single electron regime

Matthieu R. Delbecq, Takashi Nakajima, Tomohiro Otsuka, +4

Applied Physics Letters

Categoryquantum ElectronicsQuantum ScienceSpintronicsCharge ExcitationsEngineering +9

Coherent transfer of electron spin correlations assisted by dephasing noise

Takashi Nakajima, Matthieu R. Delbecq, Tomohiro Otsuka, +10

Nature Communications

Four single-spin Rabi oscillations in a quadruple quantum dot

Takumi Ito, Tomohiro Otsuka, Takashi Nakajima, +9

Applied Physics Letters

EngineeringSpin SystemsQuantum SensingQuantum ComputingQuantum Dots +19