Seminar Sébastien Garcia : "Intracavity Rydberg superatom for optical quantum engineering"

It is with pleasure that we will welcome Sébastien Garcia, Jeunes Equipes de l’Institut de Physique du Collège de France (JEIP) and invited by Marion Delehaye on

Abstract  : One major road towards the development of efficient photonic quantum technologies would be to rely on unitary deterministic photon-photon interactions. However, optical photons do not interact naturally. One thus has to use light-matter interactions to find ways towards effective photon-photon interactions. In the last decade, two approaches have been developed to achieve strong photon-photon interactions with cold atoms. On one side, experiments featuring a single atom strongly coupled to a cavity have a strong nonlinearity enabling the realization of quantum logic gates between two photons. On another side, experiments mapping photons onto Rydberg excitations in a cold atomic gas can also achieve strong photon-photon interactions. Nevertheless, both approaches are bounded by either technical or physical limits, keeping them far from ideal unitary deterministic photonic interactions.

Welcome everyone !