High-fidelity resonant gating of a silicon-based quantum dot hybrid qubit

Introduces resonant microwave detuning control at a charge-noise-protected operating point of the quantum-dot hybrid qubit.

Key Results

• Reports $X$-axis $\pi$ rotations in under 5 ns with fidelity above 93%.
• Reports $Z$ rotations in 50 ps with fidelity above 96%.
• Extends coherence beyond 150 ns with Hahn echo and Carr-Purcell sequences.

Links

• Journal: npj Quantum Information
• arXiv: 1502.03156

Zoo Links

• hybrid-qubit