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Dissipative transport in dc-ac–driven tight-binding lattices

Hartmann, L. ; Grifoni, Milena ; Hänggi, Peter


We investigate the incoherent dissipative quantum transport of a particle in a periodic lattice being driven nonlinearly by dc-ac fields. The particle always diffuses slower, as compared to the force-free case, and the minimal diffusion is found for zero dc-bias and ac-field parameters that lead to dynamical localization (DL) in the nondissipative case. A current inversion occurs at weak ...


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