28 citations · 87 across the 12 of their papers we have counts for
12 papers
and molecules with an ab initio optimization of wave functions in correlated state: Electron-proton couplings and intermolecular microscopic parameters
Andrzej P. Kądzielawa, Agata Bielas, Marcello Acquarone +3
The hydrogen molecules and are analyzed with electronic correlations taken into account between the electrons exactly. The optimal single-particle Slater orbit…
Spin wave excitations in the antiferromagnetic Heisenberg-Kondo model for heavy fermions
M. Acquarone, C. I. Ventura
Recent inelastic neutron scattering experiments in CeIn and CePdSi single crystals measured spin wave excitations at low temperatures. These two heavy fermion com…
Renormalized spin wave excitations in the antiferromagnetic Heisenberg-Kondo model for heavy fermions
M. Acquarone, C. I. Ventura, .
Recent inelastic neutron scattering experiments in CeIn3 and CePd2Si2 single crystals, measured spin wave excitations at low temperatures. These two heavy fermion compounds exhibit…
Revisiting the Froehlich-type transformation when degenerate states are present
M. Acquarone, C. I. Ventura
We focus on the definition of the unitary transformation leading to an effective second order Hamiltonian, inside degenerate eigensubspaces of the non-perturbed Hamiltonian. We sha…
A model Hamiltonian for MgB2 which takes into account its unusual phononic features
M. Acquarone, L. Romano'
Taking as a starting point the results of LDA calculations, which show that in MgB2 the phonons have a strong quartic anharmonicity and that the bond-stretching electron-phonon int…
Antiferromagnetism of almost localized fermions: Evolution from Slater-type to Mott-Hubbard gap
P. Korbel, W. Wójcik, A. Klejnberg +3
We supplement (and critically overview) the existing extensive analysis of antiferromagnetic solution for the Hubbard model with a detailed discussion of two specific features, nam…