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25 September 2022
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Non-adiabatic charge pump: an exact solution
Baigeng Wang ; Jian Wang ; Hong Guo ;
Date 24 Nov 2002
Journal Phys. Rev. B Vol.68, 155326 (2003)
Subject cond-mat
AbstractWe derived a general and exact expression of current for quantum parametric charge pumps in the non-adiabatic regime at finite pumping frequency and finite driving amplitude. The non-perturbative theory predicts a remarkable plateau structure in the pumped current due to multi-photon assisted processes in a double-barrier quantum well pump involving only a {it single} pumping potential. It also predicts a current reversal as the resonant level of the pump crosses the Fermi energy of the leads.
Source arXiv, cond-mat/0211536
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