Expérimental et théorique
When shining classical light onto a non-linear medium, intriguing quantum states of light can be generated such as squeezed states, single photon states or complex multiphoton entangled states. In the past years, theoretical physicists have proposed to use lattices of highly non-linear resonators to engineer spatial and temporal entanglement between photons. To date, a versatile and scalable experimental platform is still missing in the optical domain, where a great variety of applications are foreseen for quantum science and quantum technology. Our group at C2N has developed a unique expertise in designing photonic lattices of coupled non-linear semiconductor microcavities. We show, in Fig. 1, some examples of assemblies of coupled microcavities where light emulates the properties of electrons in a benzene molecule or in graphene The challenge we propose to tackle in this Internship and PhD work is to engineer interactions between photons that are strong enough (at the single photon level) to enter the quantum regime. To do so, we will optimize the non-linear medium and produce a new generation of non-linear semiconductor lattices using the state-of-the art nanotechnology tools that are available in the C2N clean room.