Employing the density functional theory incorporating on-site and inter-site Coulomb
interactions (DFT+ U+ V), we have investigated the role of the nonlocal interactions on the …

We examine the phase diagram of the extended Hubbard model on a square lattice, for both
attractive and repulsive nearest-neighbor interactions, using CDMFT+ HFD, a combination …

We show how the stability conditions for a system of interacting fermions that conventionally
involve variations of thermodynamic potentials can be rewritten in terms of one-and two …

Elucidating the impact of strong electronic interactions on the collective excitations of
metallic systems has been of longstanding interest, mainly due to the inadequacy of the …

We study the extended Hubbard model on a two-dimensional half-filled square lattice using
the dynamical cluster approximation. We present results on the phase boundaries between …

Despite being relevant to better understand the properties of honeycomblike systems, as
graphene-based compounds, the electron-phonon interaction is commonly disregarded in …

Using finite-temperature determinantal quantum Monte Carlo simulations, we examine the
thermodynamic properties of the extended Hubbard model on the half-filled square lattice in …

The functional integral formulation of the Hubbard model when treated in its Kotliar‐
Ruckenstein representation in the radial gauge involves fermionic, as well as complex and …

Second-order phase transitions appear as a divergence in one of the linear response
functions. For a system of correlated electrons, the relevant divergent response can and …

In contrast to the Hubbard model, the extended Hubbard model, which additionally accounts
for non-local interactions, lacks systemic studies of thermodynamic properties especially …