High-Temperature Superconductors, an example of strongly interacting systems | Rodrigo Soto (Docente-investigador, Universidad San Sebastián)

Strongly interacting systems are made out of interacting microscopic degrees of freedom, whose behavior is governed by the laws of quantum mechanics. In general, such systems exhibit emergent collective phenomena that cannot be explained using the standard perturbative methods when the interactions between the degrees of freedom is not small. In condensed matter physics, there are plenty of systems where the electronic degrees of freedom are strongly correlated. An example of such systems are the high temperature superconductors (HTSCs). Even though HTSCs were discovered over 30 years ago, the mechanisms giving rise to high critical temperatures are still debated.

In the following talk I'll present the study of the metallic region in the phase diagram using a holographic superconductor model. I will show that the model captures (qualitatively) the Fermi-Liquid to Strange Metal crossover observed in the cuprates family of HTSCs.