PICQUE is at the core of European technological innovation. Excellence in science is guaranteed by the involvement of world-leading groups which founded this research area. All the basic components of a photonic quantum processor will be addressed: generation, manipulation and detection of photon states. Particular attention will be devoted to potential applications and on how to interface all the different components PICQUE will establish a world-class training platform spreading around the highly interdisciplinar y/inter-sectorial European-led area of quantum integrated photonics. By pushing the development of quantum optical technologies we foresee results of interest also for standard optical technologies. PICQUE will aims at forming the new generation of quantum information scientists, as well as figures being able to interact with the industry."