Pumping in quantum dots and non-Abelian matrix Berry phases

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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)515-519
Number of pages5
JournalSolid State Communications
Volume145
Issue number11-12
DOIs
Publication statusPublished - 2008 Mar

Keywords

  • A. Nanostructures
  • A. Semiconductors
  • D. Electronic

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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