Jun 2 – 4, 2021
Institut de Physique Théorique
Europe/Paris timezone

Planckian metal and SYK physics at a quantum critical metal with spin 1/2 fermions.

Jun 3, 2021, 4:40 PM
40m

Speaker

O. Parcollet

Description

I will present our recent results on a model of itinerant SU(2) electrons with random exchange. This model hosts a quantum critical point separating two distinct metallic phases as a function of doping: a Fermi liquid with a large Fermi surface volume and a low-doping phase with local moments ordering into a spin-glass. This quantum critical point has non-Fermi liquid properties characterized by T-linear Planckian behavior, ω/T scaling and slow spin dynamics of the Sachdev-Ye-Kitaev (SYK) type.

Presentation materials