Fig. 7: Frequency responses of the comagnetometer.
From: Constraints on exotic spin-velocity-dependent interactions
a A comparison of the measured frequency responses to normal magnetic field and the simulated results. The simulated results are calculated with Eq.(7) based on measured parameters (\(\lambda {M}_{0}^{e}{{{{{{{{\bf{P}}}}}}}}}_{z}^{e}\), \(\lambda {M}_{0}^{n}{{{{{{{{\bf{P}}}}}}}}}_{z}^{n}\), T2e and T2n) with only one free parameter to describe the scale. The measured data agree well with the simulation of the Bloch equation Eq. (7), which confirms the validity of the simulation. b The simulated amplitude-frequency response (blue) and phase-frequency response (red) to exotic field b\({}_{y}^{{{{{{{{\rm{Ne}}}}}}}}}\). The uncertainty bands of the phase and amplitude are calculated based on the uncertainties of the measured parameter.
