39 citations · 78 across the 5 of their papers we have counts for
6 papers
Continuous unitary transformations in two-level boson systems
S. Dusuel, J. Vidal, J. M. Arias +2
Two-level boson systems displaying a quantum phase transition from a spherical (symmetric) to a deformed (broken) phase are studied. A formalism to diagonalize Hamiltonians with $O…
Finite-size scaling exponents in the interacting boson model
S. Dusuel, J. Vidal, J. M. Arias +2
We investigate the finite-size scaling exponents for the critical point at the shape phase transition from U(5) (spherical) to O(6) (deformed -unstable) dynamical symmetries of…
Generalized Richardson-Gaudin Nuclear Models
J. Dukelsky, V. G. Gueorguiev, P. Van Isacker
The exact solvability of several nuclear models with non-degenerate single-particle energies is outlined and leads to a generalization of integrable Richardson-Gaudin models, like…
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…
The Density Matrix Renormalization Group Method for Realistic Large-Scale Nuclear Shell-Model Calculations
S. S. Dimitrova, S. Pittel, J. Dukelsky +1
The Density Matrix Renormalization Group (DMRG) method is developed for application to realistic nuclear systems. Test results are reported for 24Mg.
Restoration of broken symmetries in Self-Consistent RPA
A. Rabhi, P. Schuck, R. Bennaceur +2
It is shown that the Self-Consistent RPA (SCRPA) approach allows in a very natural way to restore symmetries, spontaneously broken on the mean field level. This is achieved via the…