2. Optical Properties of Solids - WIEN 2k
2. Optical Properties of Solids - WIEN 2k
2. Optical Properties of Solids - WIEN 2k
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Open QuestionsApproximations used:Ground state:Excited state:Local Density Approximation (LDA)Generalized Gradient Approximation (GGA)Interpretation within one-particle pictureInterpretation <strong>of</strong> excited states in terms <strong>of</strong> ground state propertiesElectron-hole interaction ignored (RPA)Where do possible errors come from?How to treat excited states ab initio?Excited State <strong>Properties</strong>