A computer code is presented for solving the equations of the Hartree-Fock-Bogoliubov
(HFB) theory by the gradient method, motivated by the need for efficient and robust codes to …

Inspired by the wavefunction forms of exactly solvable algebraic Hamiltonians, we present
several wavefunction ansatze. These wavefunction forms are exact for two-electron systems; …

Background: Many quantal many-body methods that aim at the description of self-bound
nuclear or mesoscopic electronic systems make use of auxiliary wave functions that break …

We study the ability of variational approaches based on self-consistent mean-field and
beyond-mean-field methods to reproduce exact energies and electromagnetic properties of …

We study the performance of self-consistent mean-field and beyond-mean-field
approximations in shell-model valence spaces. In particular, Hartree-Fock-Bogolyubov …

Experimental nuclear spectroscopic data are evaluated for 12 known nuclides of mass
number A= 44 (Si, P, S, Cl, Ar, K, Ca, Sc, Ti, V, Cr, Mn). Detailed evaluated information are …

We discuss some strategies for extending recent geminal-based methods to open-shells by
replacing the geminal-creation operators with more general composite boson creation …

We implemented a variation after projection (VAP) algorithm based on a triaxially deformed
Hartree-Fock-Bogoliubov vacuum state. This is the first projected mean field study that …

The ground-state properties of 2094 even–even nuclei with 2 ≤ Z ≤ 110 2≤ Z≤ 110 over a
wide range of isotopes have been calculated and studied in the framework of the Hartree …

In the present work, projection methods employed to restore the spontaneously broken
symmetry in the mean-field approach to many-body problem are reviewed. The symmetry …