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Nonadiabatic Quantum Brownian Rectifiers

Goychuk, Igor ; Grifoni, Milena ; Hänggi, Peter


We study both dissipative and nondissipative quantum transport in discrete Brownian rectifiers being driven by nonthermal noise that is unbiased on average. In the absence of dissipation the current is always zero and the ballistic diffusion changes into normal diffusion. The dissipative quantum dynamics exhibits current (with distinctive reversals) as a result of the cooperative interplay ...


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