Tunneling effects on fine-structure splitting in quantum-dot molecules

Hanz Y. Ramírez, Shun-Jen Cheng

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

We theoretically study the effects of bias-controlled interdot tunneling in vertically coupled quantum dots on the emission properties of spin excitons in various bias-controlled tunneling regimes. As a main result, we predict substantial reduction of optical fine-structure splitting without any drop in the optical oscillator strength for the coupled dots with high tunneling rates. This special reduction diminishes the distinguishability of polarized decay paths in cascade emission processes suggesting the use of stacked quantum-dot molecules as entangled photon-pair sources.

原文English
文章編號206402
期刊Physical Review Letters
104
發行號20
DOIs
出版狀態Published - 18 五月 2010

指紋 深入研究「Tunneling effects on fine-structure splitting in quantum-dot molecules」主題。共同形成了獨特的指紋。

引用此