Quantum Critical Points in Metals: Non-Fermi Liquids and their Field Theoretical Description - a podcast by Michael Haack

Metals are found frequently in nature and their properties are usually
very well described within Landaus Fermi liquid theory. Variousstrongly correlated materials exhibit strange metallic phases which do
not fit into the Fermi-liquid framework, however. The theoretical descriptionof such non-Fermi liquids remains one of the main unsolved
problems in condensed matter physics. In this talk I will give anintroduction to the problem and show how interesting strongly coupled
field theories arise in the low energy description of such states,which are still very poorly understood. I will focus on the paradigmatic
problem of a metal coupled to fluctuations of a critical Isingorder parameter and discuss unexpected scaling properties at finite
temperature.

Further episodes of Sommerfeld Theory Colloquium (ASC)

Further podcasts by Michael Haack

Website of Michael Haack