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 |
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Pages (from-to) | 515-519 |
Number of pages | 5 |
Journal | Solid State Communications |
Volume | 145 |
Issue number | 11-12 |
DOIs | |
Publication status | Published - 2008 Mar |
Keywords
- A. Nanostructures
- A. Semiconductors
- D. Electronic
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry