Fig. 3

Visualization of the density matrix without QFC. ‘Re’ and ‘Im’ are the real and the imaginary parts of \(U_{\theta _0}^\dagger \rho _{{\mathrm{S,AS}}}U_{\theta _0}\), respectively
Visualization of the density matrix without QFC. ‘Re’ and ‘Im’ are the real and the imaginary parts of \(U_{\theta _0}^\dagger \rho _{{\mathrm{S,AS}}}U_{\theta _0}\), respectively