Quantum dynamics of charge transfer on the one-dimensional lattice: Wave packet spreading and recurrence
Likhachev V N, Shevaleevskii O I, Vinogradov G A†,
       

The pulse front att= 200 (E= 1,C2= 2). Empty circles: numeric result, solid line: asymptotic expansion (28). Here, MSRE ≲ 10−3.