Figure 6

Fidelities obtained for the dynamics of Eq. ( 2 ), where \(\pmb{\theta\equiv U t}\) , for \(\pmb{n=4}\) Trotter steps. The physical parameters used are hopping \(h=1\), together with (a) \(U=1\), and (b) \(U=0.5\). The initial state is in both cases \((|011\rangle+ |101\rangle)/\sqrt{2}\).