Rydberg Excitons in External Fields

本文的目的是系统地从理论上研究氧化亚铜这类固体中外加电场和磁场下的激子。重要的一点是了解激子与价带、外场和声子态的完整结构的联合相互作用。详细比较计算和实验光谱的激子在外场允许校准场强和确定准确的氧化亚铜的材料常数。较高的电场强度以及激子-声子相互作用导致光吸收光谱中的线形变宽，并产生了开放多度系统的基本量子特征，如埃里克森涨落和例外点。

The aim of this proposal is the systematic theoretical investigation ofexcitons in external electric and magnetic fields in a solid state likecuprous oxide. The important point is to learn about the combinedinteraction of excitons with the complete structure of the valenceband, the external fields, and the phonon states. Detailedcomparisons of computed and experimental spectra of excitons inexternal fields allow for the calibration of the field strengths and thedetermination of accurate material constants of cuprous oxide. Higherelectric field strengths as well as the exciton-phonon interaction leadto broadened line shapes in the photoabsorption spectra and give riseto fundamental quantum signatures of open many degrees systemssuch as Ericson fluctuations and exceptional points.