In a study published in Nature Physics, the team demonstrated highly accurate control of several silicon spin qubits operating simultaneously.
Scientists Identify a Hidden Source of Quantum Computing Errors Unlike conventional computers, which store information as bits representing either 0 or 1, quantum computers use quantum bits, or qubits, that can exist in combinations of both states.
Silicon spin qubits store this information using the spin of individual electrons confined within silicon.
Quantum Qubits Achieve Accuracy Above 99.99% The researchers combined their calibration technique with an improved device design and carefully adjusted microwave control pulses.
When the five qubits were tested individually, each achieved single-qubit gate fidelity well above 99.99%, with the highest approaching 99.999%.