Table 2 Relativeℓ²-errors of updated complex spin density for each iteration number(♯)

$E\left({\rho }^{{\mathcal{N}}_{\delta }=5}\right)$

$E\left({\rho }^{{\mathcal{N}}_{\delta }=10}\right)$

$E\left({\rho }^{{\mathcal{N}}_{\delta }=20}\right)$

$E\left({\rho }^{{\mathcal{N}}_{\delta }=30}\right)$