Pumping in quantum dots and non-Abelian matrix Berry phases

N. Y. Hwang, S. C. Kim, P. S. Park, Sung Ryul 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 1

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Pumping (laser)
Semiconductor quantum dots
pumping
quantum dots
cycles
matrices

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Pumping in quantum dots and non-Abelian matrix Berry phases. / Hwang, N. Y.; Kim, S. C.; Park, P. S.; Yang, Sung Ryul.

In: Solid State Communications, Vol. 145, No. 11-12, 01.03.2008, p. 515-519.

Research output: Contribution to journalArticle

Hwang, N. Y. ; Kim, S. C. ; Park, P. S. ; Yang, Sung Ryul. / Pumping in quantum dots and non-Abelian matrix Berry phases. In: Solid State Communications. 2008 ; Vol. 145, No. 11-12. pp. 515-519.
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