addresses_fermions Module Reference

This module collects the routines necessary for the indexing of the one-body and two-body matrix elements as well as the coefficients and configurations of indistinguishable fermions. More...

Public Member Functions
subroutine	get_configuration_distance (Distance, Nvec_Fermions, Slot1, Slot2)
	This subroutine computes the distance d^kq for an input occupation number vector |n> for Fermions to determine the additional potential (-1) prefactors in the matrix elements of the reduced one- and two- body densities and other operators as prescribed in the appendixes of JCP 127, 154103 (2007). More...
subroutine	get_configurationfromindex_fermions (Ind0, N0, M0, Nvec_Fermions)
	This subroutine computes the Number state Nvec corresponding to the index Ind0 of the fermionic CI-vector. More...
subroutine	get_indexfromconfiguration_fermions (N, M, Nvec, Ind)
	This routine computes the index Ind of the CI-Vector that corresponds to a given number state Nvec for Fermions. It's basically an implementation of Eq.6 of the mapping paper, PRA 81 022124. More...

Detailed Description

This module collects the routines necessary for the indexing of the one-body and two-body matrix elements as well as the coefficients and configurations of indistinguishable fermions.

Member Function/Subroutine Documentation

subroutine addresses_fermions::get_configuration_distance	(	integer	Distance,
		integer, dimension(morb)	Nvec_Fermions,
		integer	Slot1,
		integer	Slot2
	)

This subroutine computes the distance d^kq for an input occupation number vector |n> for Fermions to determine the additional potential (-1) prefactors in the matrix elements of the reduced one- and two- body densities and other operators as prescribed in the appendixes of JCP 127, 154103 (2007).

Referenced by onebody_mapconstruction_fermions::get_1body_mapping_fermions(), and twobody_mapconstruction_fermions::get_2body_mapping_fermions().

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subroutine addresses_fermions::get_configurationfromindex_fermions	(	integer	Ind0,
		integer	N0,
		integer	M0,
		integer, dimension(m0)	Nvec_Fermions
	)

This subroutine computes the Number state Nvec corresponding to the index Ind0 of the fermionic CI-vector.

Referenced by onebody_mapconstruction_fermions::get_1body_mapping_fermions(), and twobody_mapconstruction_fermions::get_2body_mapping_fermions().

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subroutine addresses_fermions::get_indexfromconfiguration_fermions	(	integer	N,
		integer	M,
		integer, dimension(morb)	Nvec,
		integer	Ind
	)

This routine computes the index Ind of the CI-Vector that corresponds to a given number state Nvec for Fermions. It's basically an implementation of Eq.6 of the mapping paper, PRA 81 022124.

Referenced by onebody_mapconstruction_fermions::get_1body_mapping_fermions(), and twobody_mapconstruction_fermions::get_2body_mapping_fermions().

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The documentation for this module was generated from the following file:

• Module_Addresses_Fermions.f90