Author Correction: Optical driving, spin initialization and readout of single SiV− centers in a Fabry-Perot resonator - Gregor Bayer; Robert Berghaus; Selene Sachero; Andrea B. Filipovski; Lukas Antoniuk; Niklas Lettner; Richard Waltrich; Marco Klotz; Patrick Maier; Viatcheslav Agafonov; Alexander Kubanek (Communications Physics)