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mirror of https://github.com/QuantumPackage/qp2.git synced 2024-06-27 06:52:06 +02:00
qp2/src/determinants
Anthony Scemama cebc19a601
Merge Master (#69)
* Changed native into SSE4.2 in gfortran.cfg

* Fixed rm opam_installer

* Fix configure

* Improving scaling of pt2 with network

* Router/dealer in qp_tunnel

* Reduced size of qp2.png

* Exclude temp files in tar

* Introduce NO_CACHE in configure for daily test

* Faster determinants in OCaml

* We always give max 10k dets in qp_edit. Read-only if more

* Fixed save_natorb

* Fixing bug in qp_edit

* Comments

* Biblio (#61)

* Biblio (#62)

* Update biblio

* Update paper

* Journal missing in research.bib

* Added paper

* Fixed Pierre Francois

* Checking number of electrons in MOs

* Biblio (#64)

* Update biblio

* Update paper

* Journal missing in research.bib

* Added paper

* Fixed Pierre Francois

* 2 papers

* Fixed 6-31G and quickstart (#65)

* Fixed 6-31 basis sets

* Bug in quickstart

* Biblio (#66)

* Bugfix (#67)

* Fixing opam installation

* Fixed 6-31 basis sets

* Bug in quickstart

* Use irpf90 v1.7.6

* Fix IRPF90 Path
2019-10-21 16:45:00 +02:00
..
connected_to_ref.irp.f Mono -> Single 2019-02-04 23:51:09 +01:00
create_excitations.irp.f Update do_single_excitation 2019-06-17 19:21:01 +02:00
density_matrix.irp.f Merge Master (#69) 2019-10-21 16:45:00 +02:00
determinants_bitmasks.irp.f Initial commit 2019-01-25 11:39:31 +01:00
determinants.irp.f Merge Master (#69) 2019-10-21 16:45:00 +02:00
energy.irp.f Initial commit 2019-01-25 11:39:31 +01:00
example.irp.f Mono -> Single 2019-02-04 23:51:09 +01:00
EZFIO.cfg Merge Master (#69) 2019-10-21 16:45:00 +02:00
filter_connected.irp.f Initial commit 2019-01-25 11:39:31 +01:00
fock_diag.irp.f Initial commit 2019-01-25 11:39:31 +01:00
h_apply_nozmq.template.f Initial commit 2019-01-25 11:39:31 +01:00
h_apply_zmq.template.f Initial commit 2019-01-25 11:39:31 +01:00
h_apply.irp.f put the openmp 2rdm 2019-07-16 19:51:53 +02:00
h_apply.template.f added check_sym 2019-04-26 17:31:15 +02:00
NEED Initial commit 2019-01-25 11:39:31 +01:00
occ_pattern.irp.f Documentation 2019-06-21 12:08:58 +02:00
psi_cas.irp.f Initial commit 2019-01-25 11:39:31 +01:00
psi_energy_mono_elec.irp.f fixed h_core energy for multistate 2019-03-08 16:14:43 +01:00
README.rst Warnings in documentation 2019-01-29 17:09:08 +01:00
ref_bitmask.irp.f Develop (#15) 2019-03-07 16:29:06 +01:00
s2.irp.f Develop (#15) 2019-03-07 16:29:06 +01:00
single_excitation_two_e.irp.f Mono -> Single 2019-02-04 23:51:09 +01:00
single_excitations.irp.f Mono -> Single 2019-02-04 23:51:09 +01:00
slater_rules_wee_mono.irp.f Mono -> Single 2019-02-04 23:51:09 +01:00
slater_rules.irp.f added check_sym 2019-04-26 17:31:15 +02:00
sort_dets_ab.irp.f Initial commit 2019-01-25 11:39:31 +01:00
spindeterminants.ezfio_config Initial commit 2019-01-25 11:39:31 +01:00
spindeterminants.irp.f Initial commit 2019-01-25 11:39:31 +01:00
two_e_density_matrix.irp.pouet added the RDMS 2019-06-27 18:23:28 +02:00
utils.irp.f Moved print_e_components 2019-06-05 16:17:53 +02:00
zmq.irp.f Initial commit 2019-01-25 11:39:31 +01:00

============
determinants
============

Contains everything for the computation of the Hamiltonian matrix elements in the basis of orthogonal Slater determinants built on a restricted spin-orbitals basis.

The main providers for this module are:

* :option:`determinants n_states`: number of states to be computed
* :c:data:`psi_det`: list of determinants in the wave function used in many routines/providers of the |QP|.
* :c:data:`psi_coef`: list of coefficients, for all :option:`determinants n_states` states, and all determinants.

The main routines for this module are:

* :c:func:`i_H_j`: computes the Hamiltonian matrix element between two arbitrary Slater determinants.
* :c:func:`i_H_j_s2`: computes the Hamiltonian and (|S^2|) matrix element between two arbitrary Slater determinants.
* :c:func:`i_H_j_verbose`: returns the decomposition in terms of one- and two-body components of the Hamiltonian matrix elements between two arbitrary Slater determinants. Also return the fermionic phase factor.
* :c:func:`i_H_psi`: computes the Hamiltonian matrix element between an arbitrary Slater determinant and a wave function composed of a sum of arbitrary Slater determinants.


For an example of how to use these routines and providers, take a look at :file:`example.irp.f`.