90 citations · 207 across the 6 of their papers we have counts for
6 papers
Cooper pairs in atomic nuclei
G. G. Dussel, S. Pittel, J. Dukelsky +1
We consider the development of Cooper pairs in a self-consistent Hartree Fock mean field for the even Sm isotopes. Results are presented at the level of a BCS treatment, a number-p…
The meaning of S-D dominance
G. G. Dussel, H. M. Sofia
The dominance of S and D pairs in the description of deformed nuclei is one of the facts that provided sustain to the Interacting Boson Approximation. In Ref.(J. Dukelsky and S. Pi…
Exactly-solvable models for atom-molecule hamiltonians
J. Dukelsky, G. G. Dussel, C. Esebbag +1
We present a family of exactly-solvable generalizations of the Jaynes-Cummings model involving the interaction of an ensemble of SU(2) or SU(1,1) quasi-spins with a single boson fi…
The Pairing interaction in nuclei: comparison between exact and approximate treatments
J. Dukelsky, G. G. Dussel, J. G. Hirsch +1
As a model for a deformed nucleus the many level pairing model (picket fence model with ~100 levels) is considered in four approximations and compared to the exact solution given b…
Exact Study of the Effect of Level Statistics in Ultrasmall Superconducting Grains
G. Sierra, J. Dukelsky, G. G. Dussel +2
The reduced BCS model that is commonly used for ultrasmall superconducting grains has an exact solution worked out long ago by Richardson in the context of nuclear physics. We use…
Parametrization of the octupole degrees of freedom
C. Wexler, G. G. Dussel
A simple parametrization for the octupole collective variables is proposed and the symmetries of the wave functions are discussed in terms of the solutions corresponding to the vib…