自组装量子点非弹性光散射的精确对角化研究
Exact-Diagonalization Studies of Inelastic Light Scattering in Self-Assembled Quantum Dots
摘要：
我们报告了严格对角化研究的非弹性光散射在少电子量子点下的强约束制度的特点，自组装点。我们应用正统的（二阶）理论散射由于电子激发，留给未来的考虑更高阶的影响，在形式主义（声子，例如），这似乎相关的理论描述可用的实验。我们的数值计算结果强调的优势，拉曼光谱中的拉曼峰和故障的选择规则在开壳点。这些光谱上的电子的数量在点和入射光子能量的依赖性明确示出。与最近的实验结果进行了定性比较。
英文摘要：
We report exact diagonalization studies of inelastic light scattering in few-electron quantum dots under the strong confinement regime characteristic of self-assembled dots. We apply the orthodox (second-order) theory for scattering due to electronic excitations, leaving for the future the consideration of higher-order effects in the formalism (phonons, for example), which seem relevant in the theoretical description of available experiments. Our numerical results stress the dominance of monopole peaks in Raman spectra and the breakdown of selection rules in open-shell dots. The dependence of these spectra on the number of electrons in the dot and the incident photon energy is explicitly shown. Qualitative comparisons are made with recent experimental results.
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