1. Max Planck Institute for the Structure and Dynamics of Matter and Center for Free-Electron Laser Science & Department of Physics, Luruper Chaussee 149, 22761 Hamburg, Germany
2. Computational Atomic scale Materials Design (CAMD), Department of Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
3. Center for Computational Quantum Physics, Flatiron Institute, 10010 New York, New York, United States
4. Nano-Bio Spectroscopy Group and European Theoretical Spectroscopy Facility (ETSF), Universidad del País Vasco (UPV/EHU), Av. Tolosa 72, 20018 San Sebastian, Spain
5. Department of Physics, City College of New York, 10031 New York, New York, United States
6. Department of Physics, The Graduate Center, City University of New York, 10016 New York, New York, United States