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arXiv · 0706.0947

Pumping in quantum dots and non-Abelian matrix Berry phases

N. Y. Hwang·S. C. Kim·P. S. Park·S. -R. Eric Yang
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Abstract

We have investigated pumping in quantum dots from the perspective of non-Abelian (matrix) Berry phases by solving the time dependent Schr{ö}dinger equation exactly for adiabatic changes. Our results demonstrate that a pumped charge is related to the presence of a finite matrix Berry phase. When consecutive adiabatic cycles are performed the pumped charge of each cycle is different from the previous ones.

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N. Y. Hwang, S. C. Kim, P. S. Park, S. -R. Eric Yang. 2008-02-14. Pumping in quantum dots and non-Abelian matrix Berry phases. https://doi.org/10.1016/j.ssc.2008.01.003

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