The origins of noise in the Zeeman splitting of spin qubits in
natural-silicon devices
The origins of noise in the Zeeman splitting of spin qubits in
natural-silicon devices
We measure and analyze noise-induced energy-fluctuations of spin qubits defined in quantum dots made of isotopically natural silicon. Combining Ramsey, time-correlation of single-shot measurements, and CPMG experiments, we cover the qubit noise power spectrum over a frequency range of nine orders of magnitude without any gaps. We find that the …