Pumping in quantum dots and non-Abelian matrix Berry phases

N. Y. Hwang; S. C. Kim; P. S. Park; S. R. Eric Yang

doi:10.1016/j.ssc.2008.01.003

Pumping in quantum dots and non-Abelian matrix Berry phases

N. Y. Hwang, S. C. Kim, P. S. Park, S. R. Eric Yang

Department of Physics

Research output: Contribution to journal › Article

5 Citations (Scopus)

Abstract

We have investigated pumping in quantum dots from the perspective of non-Abelian (matrix) Berry phases by solving the time-dependent Schrödinger 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 that of the previous ones.

Original language	English
Pages (from-to)	515-519
Number of pages	5
Journal	Solid State Communications
Volume	145
Issue number	11-12
DOIs	https://doi.org/10.1016/j.ssc.2008.01.003
Publication status	Published - 2008 Mar

Keywords

A. Nanostructures
A. Semiconductors
D. Electronic

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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10.1016/j.ssc.2008.01.003

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Hwang, N. Y., Kim, S. C., Park, P. S., & Eric Yang, S. R. (2008). Pumping in quantum dots and non-Abelian matrix Berry phases. Solid State Communications, 145(11-12), 515-519. https://doi.org/10.1016/j.ssc.2008.01.003

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KW - A. Semiconductors

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