Séminaire conjoint LSI+CPHT+PMC = M4S

Séminaire conjoint LSI+CPHT+PMC = M4S

jeudi 9 octobre à 11h

Salle de séminaire du CPHT LOUIS MICHEL 

Louis Taillefer
(Institut quantique, Université de Sherbrooke, Sherbrooke, Canada International Research Lab, Quantum Frontiers, CNRS Quantum Materials Program, CIFAR)

"Planckian dissipation"

Résumé : The notion of “Planckian dissipation” refers to the experimental observation of a perfectly linear temperature dependence of the electrical resistivity in certain metals, called “strange metals”. In addition to this qualitative feature, there is also a quantitative feature, namely that the slope of the resistivity vs temperature curve is given by Planck’s constant [1] or, more specifically, the scattering time is equal to Planck’s constant divided by temperature [2]. In this talk, I will review some of the steps that led to the concept of Planckian dissipation. [1] Legros et al., Nature Physics 15, 142 (2019) [2] Grissonnanche et al., Nature 595, 667 (2021)