Optical conductivity signatures of open Dirac nodal linesRemoveDavid Santos-Cottin, Michele Casula, Luca de' Medici, F. Le Mardelé, J. Wyzula, M. Orlita, Yannick Klein, Andrea Gauzzi, Ana Akrap, and R. P. S. M. LoboPhys. Rev. B 104, L201115 (2021)