1. Center for Computational Mathematics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, United States
2. Center for Computational Quantum Physics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, United States
3. Courant Institute of Mathematical Sciences, New York University, 251 Mercer Street, New York, New York 10012, United States
4. Dipartimento di Fisica e Chimica - Emilio Segrè, Università degli Studi di Palermo, Via Archirafi 36, I-90123, Palermo, Italy
5. Max Planck Institute for the Structure and Dynamics of Matter and Center for Free Electron Laser Science, 22761, Hamburg, Germany