Artistic representation of several hollow-core light cages guiding light through their cores, all immersed in a cesium atmosphere. The unique side-wise access to their core region allows for rapid diffusion of cesium atoms while providing excellent optical field confinement. Credit: Esteban Gómez-López et al. Storing quantum information is essential for the future of both quantum computing and a global quantum internet. Today's quantum communication systems struggle with signal loss over long