2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/82387A simple many-fermion system in which there exists N identical fermions in a single spherical orbit with pairing interaction is treated by means of the time-dependent variational approach with a quasi-spin squeezed state with the aim of going beyond the time-dependent Hartree-Fock or Bogoliubov theory. It is shown that the ground state energy is reproduced well analytically in this approach.13 pages, 2 figures, using PTP TeX classNuclear Theorytext