On Some Attempts to Generalize the Effective Hamiltonian Approach

Jean-Louis Heully (1) , Stefano Evangelisti (1) , Philippe Durand (1)

1 LPQ - Laboratoire de Physique Quantique

A clear and simple method to derive various intermediate Hamiltonians is proposed. Several intermediate Hamiltonians usable for various purposes are presented. The new intermediate Hamiltonians have the same properties as the traditional effective Hamiltonians but they should present better convergence properties, and should avoid any intruder state problem.

Domaines: Articles anciens

Jean-Louis Heully, Stefano Evangelisti, Philippe Durand. On Some Attempts to Generalize the Effective Hamiltonian Approach. Journal de Physique II, 1995, 5 (1), pp.63-74. ⟨10.1051/jp2:1995100⟩. ⟨jpa-00248144⟩