[Atentos al cambio de hora] El grupo de Física Estadística de los Sistemas Complejos les invita al siguiente seminario online: Ponente: Francisco Perez-Bernal. Universidad de Huelva. Título: Speck of Chaos Resumen: Local perturbations can bring an integrable quantum many-body system to the chaotic regime. This fact has been known for the XXZ model since 2004, and such results have been recently extended to two other models: the transverse-field Ising chain and the Lai-Sutherland spin 1 chain. The nature of different quantum chaos indicators, static and dynamic, will be reviewed, to discuss how a single local effect can bring three different integrable systems to the chaotic regime. Among the possible indicators, the distribution of off-diagonal matrix elements of local operators and the correlation hole will be presented with more detail. Fecha y hora: Viernes 26 de Marzo de 2021. 12:30 horas. Enlace: https://meet.google.com/vyq-ucva-vdj https://meet.google.com/vyq-ucva-vdj Check our previous talks: Ricardo Gutierrez: Generalized optimal paths and weight distributions on networks. https://youtu.be/xyjgh0xeXbo Beatriz Olmos: Collective coupling of an array of atoms near a nanofiber https://youtu.be/OBKkd-XHAa8 Daniel Maria Busiello: Non-equilibrium selection of chemical states driven by dissipation phenomena https://youtu.be/rFJAo14o68Q Atentamente, --------------------------------------------------------------------------------- Daniel Manzano Electromagnetism and Condensed Matter Department Institute “Carlos I” for Theoretical and Computational Physics University of Granada Facultad de Ciencias, Av. Fuentenueva s/n Granada 18071, Spain Phone: +34 958241000 Ext: 20569 http://ic1.ugr.es/manzano/ http://ic1.ugr.es/manzano/