Monte Carlo Studies of Quantum Critical Metals

Understand

Metallic quantum critical phenomena are believed to play a key role in many strongly correlated materials, including high temperature superconductors.

• Theoretically, the problem of quantum criticality in the presence of a Fermi surface has proven to be highly challenging.
• However, it has recently been realized that many models used to describe such systems are amenable to numerically exact solution by quantum Monte Carlo (QMC) techniques, without suffering from the fermion sign problem.
• In this article, we review the status of the understanding of metallic quantum criticality, and the recent progress made by QMC simulations.