Speaker: Iñaki García Elcano
Affiliation: IFF CSIC- UAM
Date: Tuesday, 19 December 2023 at 12:00
Location: Seminar Room, Serrano 113b
Light-matter interactions play a central role in understanding the world around us. Their study has fueled significant advances enabling the expansion of the frontiers of knowledge and the design of novel technological applications. In this context, the extension of the ideas associated with the topological phases of matter to the photonics realm stands as an exciting challenge since they can modify the way in which these interactions take place.
In this talk we discuss different light-matter interaction phenomena occurring in a photonic Weyl system, i.e., a paradigmatic example of a 3D topological gapless phase. We investigate the coupling of one or more emitters to both the bulk and boundary modes of a Weyl photonic lattice. Among other things, we study the emergence of topological atom-photon bound states that mediate long-range and tunable interactions between emitters, as well as exotic ways of probing and harnessing the Fermi arc surface modes of the Weyl photonic environment. Furthermore, we show how a Weyl system hosting a pair of frequency isolated Weyl points can be implemented in a subwavelength atomic array.