Non-Fermi liquids are unconventional metals whose physical properties deviate qualitatively
from those of noninteracting fermions due to strong quantum fluctuations near Fermi …

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

A Fermi surface coupled to a scalar field can be described in a 1/N expansion by choosing
the fermion-scalar Yukawa coupling to be random in the N-dimensional flavor space, but …

We describe the large-N saddle point, and the structure of fluctuations about the saddle
point, of a theory containing a sharp, critical Fermi surface in two spatial dimensions. The …

Using determinantal quantum Monte Carlo, we compute the properties of a lattice model
with spin 1 2 itinerant electrons tuned through a quantum phase transition to an Ising …

We develop a method for bosonizing the Fermi surface based on the formalism of the
coadjoint orbits. This allows one to parametrize the Fermi surface by a bosonic field that …

The Ising nematic quantum critical point associated with the zero-temperature transition from
a symmetric to a nematic metal is an exemplar of metallic quantum criticality. We carry out a …

We study electrical transport at quantum critical points (QCPs) associated with loop current
ordering in a metal, focusing specifically on models of the" Hertz-Millis" type. At the infrared …

Near a quantum critical point in a metal, a strong fermion-fermion interaction, mediated by a
soft boson, acts in two different directions: it destroys fermionic coherence and it gives rise to …

Unconventional metallic states which do not support well-defined single-particle excitations
can arise near quantum phase transitions as strong quantum fluctuations of incipient order …