Author/Authors :
Garc??a، نويسنده , , V.M. and Reguero، نويسنده , , M. and Caballol، نويسنده , , R. and Malrieu، نويسنده , , J.P.، نويسنده ,
Abstract :
The nearly diabatic character of average natural orbitals obtained from linear combinations of density matrices associated with different states is rationalized. These orbitals may be used to build low-dimensional model spaces and effective Hamiltonians which give a nearly diabatic description of the set of interacting states.
