hamiltonian_abst.F90

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!! Copyright (C) 2019 N. Tancogne-Dejean, M. Oliveira
!!
!! This program is free software; you can redistribute it and/or modify
!! it under the terms of the GNU General Public License as published by
!! the Free Software Foundation; either version 2, or (at your option)
!! any later version.
!!
!! This program is distributed in the hope that it will be useful,
!! but WITHOUT ANY WARRANTY; without even the implied warranty of
!! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
!! GNU General Public License for more details.
!!
!! You should have received a copy of the GNU General Public License
!! along with st program; if not, write to the Free Software
!! Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
!! 02110-1301, USA.
!!
#include "global.h"
 
 
module hamiltonian_abst_oct_m
  use batch_oct_m
  use global_oct_m
  use mesh_oct_m
  use namespace_oct_m
 
  implicit none
 
  private
 
  public ::                           &
    hamiltonian_abst_t
 
  type, abstract :: hamiltonian_abst_t
    real(real64) :: spectral_middle_point
    real(real64) :: spectral_half_span
 
  contains
    procedure(is_hermitian),              deferred :: is_hermitian
    procedure(hamiltonian_update_span),   deferred :: update_span
    procedure(dhamiltonian_apply),        deferred :: dapply
    procedure(zhamiltonian_apply),        deferred :: zapply
  end type hamiltonian_abst_t
 
  abstract interface
    logical function is_hermitian(hm)
      import
      class(hamiltonian_abst_t), intent(in) :: hm
    end function is_hermitian
 
    subroutine hamiltonian_update_span(hm, delta, emin, namespace)
      import
      class(hamiltonian_abst_t), intent(inout) :: hm
      real(real64),              intent(in)    :: delta(:)
      real(real64),              intent(in)    :: emin
      type(namespace_t),         intent(in)    :: namespace
    end subroutine hamiltonian_update_span
 
    subroutine dhamiltonian_apply(hm, namespace, mesh, psib, hpsib, terms, set_bc)
      import
      class(hamiltonian_abst_t),   intent(in)    :: hm
      type(namespace_t),           intent(in)    :: namespace
      class(mesh_t),               intent(in)    :: mesh
      class(batch_t),      target, intent(inout) :: psib
      class(batch_t),      target, intent(inout) :: hpsib
      integer,           optional, intent(in)    :: terms
      logical,           optional, intent(in)    :: set_bc
    end subroutine dhamiltonian_apply
 
    subroutine zhamiltonian_apply(hm, namespace, mesh, psib, hpsib, terms, set_bc)
      import
      class(hamiltonian_abst_t),   intent(in)    :: hm
      type(namespace_t),           intent(in)    :: namespace
      class(mesh_t),               intent(in)    :: mesh
      class(batch_t),      target, intent(inout) :: psib
      class(batch_t),      target, intent(inout) :: hpsib
      integer,           optional, intent(in)    :: terms
      logical,           optional, intent(in)    :: set_bc
    end subroutine zhamiltonian_apply
  end interface
 
end module hamiltonian_abst_oct_m
 
 
!! Local Variables:
!! mode: f90
!! coding: utf-8
!! End: