We investigate ultrafast electron and lattice dynamics in solids using a worldwide unique setup for all-attosecond transient absorption spectroscopy (AATAS) and all-attosecond transient reflectivity spectroscopy (AATRS). These techniques offer two key advantages: attosecond pulse durations and the ability to excite core electrons in both the pump and probe stages. This combination promises unprecedented insights into ultrafast electron processes in solids, including electronic coherences and electron correlations, which remain beyond the reach of other methods.

After obtaining initial results on core exciton dynamics in ionic crystals, our current research focuses on ultrafast dynamics in semiconductors and two-dimensional materials, such as transition-metal dichalcogenides. To interpret these processes, we collaborate closely with leading theoreticians at the MBI and partner institutions worldwide.