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Charge qubits formed in double quantum dots represent quintessentialtwo-level systems that enjoy both ease of control and efficient readout.Unfortunately, charge noise can cause rapid decoherence, with typicalsingle-qubit gate fidelities falling below $90\%$. Here, we develop analyticalmethods to study the evolution of strongly driven charge qubits, for generaland $1\!/\!f$ charge-noise spectra. We show that special pulsing techniques cansimultaneously suppress errors due to strong driving and charge noise, yieldingsingle-qubit gates with fidelities above $99.9\%$. These results demonstratethat quantum dot charge qubits provide a potential route to high-fidelityquantum computation.

Achieving High-Fidelity Single-Qubit Gates in a Strongly Driven Charge Qubit with $1\!/\!f$ Charge Noise