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 dependence of amplitudea0(t) on the donor versus time (solid line) in the presence of one pole. Dashed line: contribution to amplitude from the integral summand Eq. (16); dotted line: modulus of the pole summand equal to 0.75 Eq. (20); empty circles: exact numerical result. Parameters:E= 2,C= 1 (ɛ= 2.5).