Table 6 The accuracy of the magnetometer at the optimal phase accumulation time for fluxonium ²⁰ qubit.

A (\(\mu \Phi _0\))

S (\(\mu m^2\))

\(\max |d\omega _ {01}/d\Phi |\) (\(GHz/\Phi _0\))

\(T_\textrm{reset}\) (\(\mu s\))

\(T_2\) (\(\mu s\))

\(\tau ^*\) (\(\mu s\))

\(A_\textrm{quant}\) (\(n\Phi _0 Hz^ {-1/2}\))

\(A_\textrm{B}\) (\(fT Hz^ {-1/2}\))