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QCaml/MOBasis/MOClass.mli

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1.1 KiB
OCaml

(** CI Classes of MOs : active, inactive, etc *)
type mo_class =
| Core of int (* Always doubly occupied *)
| Inactive of int (* With 0,1 or 2 holes *)
| Active of int (* With 0,1 or 2 holes or particles *)
| Virtual of int (* With 0,1 or 2 particles *)
| Deleted of int (* Always unoccupied *)
type t
(** Creation *)
val of_list : mo_class list -> t
val fci : ?frozen_core:bool -> MOBasis.t -> t
(** Creates the MO classes for FCI calculations : all [Active]. The
[n] lowest MOs are [Core] if [frozen_core = true].
*)
val core_mos : t -> int list
(** Returns a list containing the indices of the core MOs. *)
val active_mos : t -> int list
(** Returns a list containing the indices of the active MOs. *)
val virtual_mos : t -> int list
(** Returns a list containing the indices of the virtual MOs. *)
val inactive_mos : t -> int list
(** Returns a list containing the indices of the inactive MOs. *)
val deleted_mos : t -> int list
(** Returns a list containing the indices of the deleted MOs. *)
(** {2 Printers} *)
val pp_mo_occ : Format.formatter -> mo_class -> unit