[threshold_davidson]
type: Threshold
doc: Thresholds of Davidson's algorithm
interface: ezfio,provider,ocaml
default: 1.e-12

[n_states_diag]
type: States_number
doc: Number of states to consider during the Davdison diagonalization
default: 10
interface: ezfio,provider,ocaml

[davidson_sze_max]
type: Strictly_positive_int
doc: Number of micro-iterations before re-contracting
default: 10
interface: ezfio,provider,ocaml