Verify the broadband 1/f spectral dependence of charge noise in bilayer graphene

Verify whether the S1/f^γ charge-noise dependence remains valid across the many frequency decades used to extrapolate bilayer-graphene quantum-dot noise estimates.

Background

The paper estimates charge-qubit relaxation and dephasing times by extrapolating the experimentally measured low-frequency charge-noise spectrum over a broad frequency range. This extrapolation assumes that the fitted S1/f^γ dependence remains valid over many decades of frequency. Although comparable behavior has been confirmed in silicon quantum dots, the corresponding broadband spectral dependence has not yet been established for bilayer graphene.