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Quantum Ratchets with Few Bands below the Barrier

Grifoni, Milena, Ferreira, M. S., Peguiron, J. and Majer, J. B. (2002) Quantum Ratchets with Few Bands below the Barrier. Phys. Rev. Lett. 89 (14; 4), p. 146801.

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We investigate directed motion in nonadiabatically rocked ratchet systems sustaining few bands below the barrier. Upon restricting the dynamics to the lowest M bands, the total system-plus-bath Hamiltonian is mapped onto a discrete tight-binding model containing all the information both on the intrawell and interwell tunneling motion. A closed form for the current in the incoherent ...


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Item type:Article
Date:11 September 2002
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni
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Dewey Decimal Classification:500 Science > 530 Physics
Created at the University of Regensburg:Unknown
Item ID:9474
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