About the speaker:
Prof. Claudio Giannetti is Full Professor of Condensed Matter Physics at Università Cattolica del Sacro Cuore, where he also serves as Dean of the Faculty of Mathematical, Physical and Natural Sciences and Director of the Interdisciplinary Laboratories for Advanced Materials Physics. His research focuses on controlling non-thermal states in quantum materials using light and developing advanced time-resolved spectroscopic techniques to study coherence and dynamics at the quantum level. He has authored over 100 publications in leading journals such as Science, Nature Physics, and Physical Review Letters and he has been leader of several national and international research projects aimed at investigating exotic materials driven out-of-equilibrium.

Abstract:
Ultrafast optical spectroscopy provides a powerful approach to probe and control quantum materials far from equilibrium. In this talk, I will show how ultrafast light pulses can be used to investigate the fundamental interactions governing high-temperature superconductors and correlated materials. In copper oxide superconductors, time-resolved spectroscopies reveal a direct interplay between high- and low-energy scales, demonstrating that Mott physics is intrinsically linked to superconductivity. Broadband pump–probe techniques further enable the disentangling of the bosonic excitations that mediate electronic interactions in these systems.
I will also discuss how ultrafast methods provide access to non-thermal insulator-to-metal transitions in Mott systems such as V₂O₃, where light can induce and stabilize transient electronic phases that are inaccessible at equilibrium. These results highlight the crucial role of nonequilibrium pathways and spatial inhomogeneities in correlated materials.
Finally, I will present emerging perspectives based on multidimensional spectroscopy, which extends conventional pump–probe approaches by correlating excitation and detection energies. This powerful framework opens new routes to disentangle complex interactions and unveil hidden physics in quantum materials and high-temperature superconductors.

Inviter: 赵继民（jmzhao@iphy.ac.cn）

Contact: 胡 颖（8264 9361）