Spin-Forster transfer in optically excited quantum dots
介观与纳米尺度物理
2009-11-11 v1 无序系统与神经网络
摘要
The mechanisms of energy and spin transfer in quantum dot pairs coupled via the Coulomb interaction are studied. Exciton transfer can be resonant or phonon-assisted. In both cases, the transfer rates strongly depend on the resonance conditions. The spin selection rules in the transfer process come from the exchange and spin-orbit interactions. The character of energy dissipation in spin transfer is different than that in the traditional spin currents. The spin-dependent photon cross-correlation functions reflect the exciton transfer process. In addition, a mathematical method to calculate F\"orster transfer in crystalline nanostructures beyond the dipole-dipole approximation is described.
引用
@article{arxiv.cond-mat/0503688,
title = {Spin-Forster transfer in optically excited quantum dots},
author = {Alexander O. Govorov},
journal= {arXiv preprint arXiv:cond-mat/0503688},
year = {2009}
}
备注
22 pages, 10 figures, Phys. Rev. B, in press