[n_iter]
interface: ezfio
doc: Number of iterations needed
type: integer

[n_det]
interface: ezfio
doc: number of determinants at iteration
type: integer
size: (FCI_Iteration.n_iter)
 
[energy]
interface: ezfio
doc: The energy without a pt2 correction for n_det
type: double precision 
size: (FCI_Iteration.n_iter)

[pt2]
interface: ezfio
doc: The pt2 correction for n_det
type: double precision 
size: (FCI_Iteration.n_iter)

[energy_pt2]
interface: ezfio
doc: The energy with pt2 correction for n_det
type: double precision 
size: (FCI_Iteration.n_iter)