The Hubbard model is the simplest model of interacting fermions on a lattice and is of similar
importance to correlated electron physics as the Ising model is to statistical mechanics or the …

Cuprates exhibit exceptionally strong superconductivity. To understand why, it is essential to
elucidate the nature of the electronic interactions that cause pairing. Superconductivity …

Quantum impurity models describe an atom or molecule embedded in a host material with
which it can exchange electrons. They are basic to nanoscience as representations of …

Although the vast majority of high-T c cuprate superconductors are hole-doped, a small
family of electron-doped compounds exists. Underinvestigated until recently, there has been …

The origin of the exceptionally strong superconductivity of cuprates remains a subject of
debate after more than two decades of investigation. Here we follow a new lead: The onset …

In cuprate high-temperature superconductors, an antiferromagnetic Mott insulating state can
be destabilized toward unconventional superconductivity by either hole or electron do** …

The Hall coefficient RH of the cuprate superconductor YBa 2 Cu 3 O y was measured in
magnetic fields up to 60 T for a hole concentration p from 0.078 to 0.152 in the underdoped …

We study the evolution of a Mott-Hubbard insulator into a correlated metal upon do** in
the two-dimensional Hubbard model using the cellular dynamical mean-field theory. Short …

We present a formalism for strongly correlated electron systems which consists in a local
approximation of the dynamical three-leg interaction vertex. This vertex is self-consistently …

Abstract High-transition-temperature (high-T c) superconductivity develops near
antiferromagnetic phases, and it is possible that magnetic excitations contribute to the …