Spin precession caused by spin-spin interaction between bounded electrons in quantum dots
Mesoscale and Nanoscale Physics
2010-11-10 v1 Strongly Correlated Electrons
Abstract
In this paper, we study the spin-spin interaction between two electrons bounded in a quantum dot. The result shows that spin-spin interaction will cause a pair of spins precessing synchronously. If the two spins are parallel at initial time, the total spin oscillates as a cosine function. If the two spins are antiparallel at initial time, the total spin keeps zero. The precessing period is proportional to the cube of quantum dot radius. For a 2D round quantum dot with radius , the precessing period equals nearly .
Cite
@article{arxiv.cond-mat/0612621,
title = {Spin precession caused by spin-spin interaction between bounded electrons in quantum dots},
author = {Pei Wang and Jin-liang Zheng and Xuean Zhao},
journal= {arXiv preprint arXiv:cond-mat/0612621},
year = {2010}
}
Comments
6 pages, 1 table