Antonio Picon - Real-time simulations for attosecond and X-ray spectroscopy

The use of light is nowadays the fastest way to observe and control electronic motion. Novel laser sources enable us to produce pulses in the attosecond scale (10^-18 s), even in the X-ray regime. Using those pulses, current ultrafast experiments already demonstrated the potential to follow the electron motion in few-layers materials [1] by using the characteristic site-specificity of X-ray interactions. To interpret the results, it is essential to be able to model both the light-induced dynamics and the observable to be measured with real-time approaches. Here we will show our advances in the development of a real-time dynamics code for materials [2] and some applications in the context of attosecond charge migration [3]. References [1]B. Buades, A. Picón, E. Berger, I. León, N. Di Palo, S. Cousin, C. Cocchi, E. Pellegrin, J. Martin, S. Mañas-Valero, E. Coronado, T. Danz, C. Draxl, M. Uemoto, K. Yabana, M. Schultze, S. Wall, M. Zürch, J. Biegert, Applied Physics Reviews, 8, (2021) [2]G. Cistaro, M. Malakhov, J. Esteve-Paredes, A. Uría-Álvarez, R. Silva, F. Martín, J. Palacios, A. Picón, J. Chem. Theory Comput., 19, 333-348 (2022) [3]M. Malakhov, G. Cistaro, F. Martín, A. Picón, Exciton migration in two-dimensional materials, unpublished