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 journalArticlepeer-review

5 Citations (Scopus)


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
Issue number11-12
Publication statusPublished - 2008 Mar

Bibliographical note

Funding Information:
S.R.E.Y thanks M. Governale for useful discussions. He is also grateful to R. Fazio for reading this manuscript and bringing Ref. [38] to his attention. This work was supported by grant No. R01-2005-000-10352-0 from the Basic Research Program of the Korea Science and Engineering Foundation and by the Quantum Functional Semiconductor Research Center (QSRC) at Dongguk University of the Korea Science and Engineering Foundation. This work was also supported by The Second Brain Korea 21 Project.


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

ASJC Scopus subject areas

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


Dive into the research topics of 'Pumping in quantum dots and non-Abelian matrix Berry phases'. Together they form a unique fingerprint.

Cite this