Dynamical nuclear spin polarization and the Zamboni effect in gated double quantum dots
介观与纳米尺度物理
2015-06-25 v2
摘要
A dynamical nuclear polarization scheme is studied in gated double dots. We demonstrate that a small polarization () is sufficient to enhance the singlet decay time by two orders of magnitude. This enhancement is attributed to an equilibration process between the nuclear reservoirs in the two dots accompanied by reduced fluctuations in the Overhauser fields, that are mediated by the electron-nuclear spin hyperfine interaction.
引用
@article{arxiv.cond-mat/0610585,
title = {Dynamical nuclear spin polarization and the Zamboni effect in gated double quantum dots},
author = {Guy Ramon and Xuedong Hu},
journal= {arXiv preprint arXiv:cond-mat/0610585},
year = {2015}
}
备注
4 pages, 3 figures