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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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Abstract

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
Identification Number:
ValueType
10.1103/PhysRevLett.89.146801DOI
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Item ID:9474
Owner only: item control page

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