Extended Data Fig. 4: Spectroscopy of the inter-doublet transitions at the Φ = 0 degeneracy point while Vg is varied.
From: Continuous monitoring of a trapped superconducting spin
The transition frequency changes due to mesoscopic conductance fluctuations8,27,33, and a local maximum is observed around Vg = − 1.3592V. The linewidth is visibly narrower at this local maximum, indicating that electric field noise is the dominant source of dephasing. To minimize this dephasing, we performed the measurements presented in the main text at Vg = − 1.3592V.
