DQMP Seminar

13.12.2022 13:00 – 14:00

The increased control over light-matter interactions has turned the electromagnetic radiation from a traditional spectroscopic probe to an invaluable tool to control and manipulate complex quantum many body systems. Examples of this light-control of quantum matter include optically stimulated superconductivity, enhanced magnetism and drive-induced topology. An upcoming frontier aims at using quantum fluctuations of a cavity field to enhance transport or to dress, cool and control selected collective excitations of solids.
In this talk I will review our work on prototype models of strongly correlated electrons coupled to classical or quantum light. I will show how periodic driving can turn a Mott insulator into a non-thermal state with enhanced pairing correlations associated to the elusive eta-pairing superconductivity. I will focus then on the quantum regime of light-matter interaction and I will discuss the role of gauge invariance for the existence of coherent (superradiant) phases of photons in equilibrium and how to control topology using cavity fields

Lieu

Bâtiment: Ecole de Physique

Auditoire Stückelberg

Organisé par

Faculté des sciences
Département de physique de la matière quantique

Intervenant-e-s

Marco SCHIRO, Dr, Collège de France and IPhT/CEA, Saclay

entrée libre

Classement

Catégorie: Séminaire