We review many-body effects, their microscopic origin, as well as their impact on
thermoelectricity in correlated narrow-gap semiconductors. Members of this class—such as …

The experimentally established phase diagram of the half-filled Hubbard model features the
existence of three distinct finite-temperature regimes, separated by extended crossover …

Bad-metal (BM) behavior featuring linear temperature dependence of the resistivity
extending to well above the Mott-Ioffe-Regel (MIR) limit is often viewed as one of the key …

We address theoretically the evolution of the heavy fermion Fermi surface (FS) as a function
of temperature (T), using a first principles dynamical mean-field theory approach combined …

The Luttinger-Ward functional (LWF) has been a starting point for conserving
approximations in many-body physics for 50 years. The recent discoveries of its …

DMRG ground state search algorithms employing symmetries must be able to expand virtual
bond spaces by adding or changing symmetry sectors if these lower the energy. Traditional …

Electron-electron scattering usually dominates the transport in strongly correlated materials.
It typically leads to pronounced resistivity maxima in the incoherent regime around the …

Heavy-fermion metals typically exhibit an unconventional quantum critical point or quantum
critical phase at zero temperature due to the competition of the Kondo effect and magnetism …

We investigate metamagnetic transitions in models for heavy fermions by considering the
doped Kondo lattice model in two dimensions. Results are obtained within the framework of …

We generalize the dynamical large-N multichannel Schwinger-boson approach to study the
quantum phase transition of a two-dimensional Kondo-Heisenberg model, relevant for …