This network will bridge two very active disciplines in physics, namely the quantum electrodynamics of atoms or ions strongly interacting with light in resonators, and the emerging field of solid-state superconducting circuit quantum electrodynamics. Advanced techniques will be developed jointly with industry partners for the manipulation of a deterministic number of particles - atoms, ions or artificial atoms - with electromagnetic fields covering the microwave and the optical frequency spectrum. The interdisciplinary training of a new generation of young researchers will strengthen the European expertise in those fields, and will allow for a new discipline to emerge that combines single-atom control methods with superconductor micro-chip fabrication. The use of high-quality resonators, whether superconducting transmission lines or highly-reflecting mirrors, coupled to a controlled number of particles will open novel avenues to explore quantum dynamics via hitherto inaccessible physical mechanisms. These new control scenarii will be strengthened by the development of potentially marketable technologies of great multidisciplinary interest.The network groups 10 research centres and 3 companies representing the cutting edge of research in the quantum electrodynamics of fundamental systems in Europe. The network will train 12 ESRs and 2 ERs, with focus on (i) establishing bonds between solid-state and quantum optics physics, (ii) strengthening the communication between theory and experiment, and, (iii) concretizing links between fundamental and applied research. Prominent scientists and industry leaders will contribute to the schools and workshops. Special attention will be given on developing complementary skills, such as communication, presentation, project planning and management.