Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1595645 | Solid State Communications | 2008 | 5 Pages |
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.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
N.Y. Hwang, S.C. Kim, P.S. Park, S.-R. Eric Yang,