Upcoming seminars

Coherence is understood as a fundamental concept in optics and in quantum physics. However, it has the peculiarity of not being a phenomenon in itself and it only manifests through other phenomena. Although this seemed to be well understood long ago, the new physics proposes scenarios which challenge the interpretation of this concept.

Photonic states with large and fixed photon numbers, such as Fock states, enable quantum-enhanced metrology but remain an experimentally elusive resource. A potentially simple, deterministic and scalable way to generate these states consists of fully exciting N quantum emitters equally coupled to a common photonic reservoir, which leads to a collective decay known as Dicke superradiance.