2014-04-03 16:23:27 +02:00
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==============
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Bitmask Module
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==============
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2014-04-10 22:17:26 +02:00
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The central part of this module is the ``bitmasks_module.f90`` file. It contains
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the constants that will be used to define on which kind of integer the bitmasks
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will be defined.
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In the program, when an integer ``X`` is used to represent a bit string (like a determinant
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2014-04-10 22:26:42 +02:00
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for example), it should be defined as, for example:
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2014-04-10 22:17:26 +02:00
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.. code-block:: fortran
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use bitmasks
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integer(bit_kind) :: X
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The ``bitmasks_routines.irp.f`` contains helper routines to manipulate bitmassk, like
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transforming a bit string to a list of integers for example.
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Assumptions
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===========
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.. Do not edit this section. It was auto-generated from the
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2015-05-27 11:02:13 +02:00
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.. NEEDED_MODULES_CHILDREN file by the `update_README.py` script.
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2014-04-10 22:17:26 +02:00
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2014-04-17 23:50:51 +02:00
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``bit_kind_shift``, ``bit_kind_size`` and ``bit_kind`` are coherent:
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.. code_block:: fortran
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2014-04-10 22:17:26 +02:00
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2**bit_kind_shift = bit_kind_size
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bit_kind = bit_kind_size / 8
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2014-04-03 16:23:27 +02:00
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Needed Modules
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2014-04-04 00:41:43 +02:00
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==============
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2015-07-28 16:45:45 +02:00
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.. Do not edit this section It was auto-generated
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2015-06-04 12:15:54 +02:00
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.. by the `update_README.py` script.
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2014-04-03 16:23:27 +02:00
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2015-06-04 12:15:54 +02:00
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.. image:: tree_dependency.png
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2015-05-12 10:39:49 +02:00
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2015-06-24 11:33:27 +02:00
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* `MO_Basis <http://github.com/LCPQ/quantum_package/tree/master/src/MO_Basis>`_
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2014-04-03 16:23:27 +02:00
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2015-07-28 17:02:00 +02:00
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Needed Modules
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==============
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.. Do not edit this section It was auto-generated
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.. by the `update_README.py` script.
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.. image:: tree_dependency.png
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* `MO_Basis <http://github.com/LCPQ/quantum_package/tree/master/src/MO_Basis>`_
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Documentation
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=============
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.. Do not edit this section It was auto-generated
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.. by the `update_README.py` script.
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2015-06-04 12:15:54 +02:00
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`bitstring_to_hexa <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks_routines.irp.f#L98>`_
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Transform a bit string to a string in hexadecimal format for printing
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2015-04-13 10:44:49 +02:00
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2015-06-04 12:15:54 +02:00
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`bitstring_to_list <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks_routines.irp.f#L1>`_
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Gives the inidices(+1) of the bits set to 1 in the bit string
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2015-04-13 10:44:49 +02:00
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2015-06-04 12:15:54 +02:00
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`bitstring_to_str <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks_routines.irp.f#L65>`_
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Transform a bit string to a string for printing
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2015-04-13 10:44:49 +02:00
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2016-09-22 12:15:20 +02:00
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`cas_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L277>`_
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2015-04-13 10:44:49 +02:00
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Bitmasks for CAS reference determinants. (N_int, alpha/beta, CAS reference)
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2015-06-04 12:15:54 +02:00
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2016-09-22 12:15:20 +02:00
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`closed_shell_ref_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L518>`_
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Undocumented
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2014-07-16 15:31:02 +02:00
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2015-06-04 12:15:54 +02:00
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2016-09-22 12:15:20 +02:00
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`core_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L452>`_
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Core orbitals bitmask
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2015-07-20 14:19:11 +02:00
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2015-06-04 12:15:54 +02:00
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`debug_det <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks_routines.irp.f#L120>`_
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Subroutine to print the content of a determinant in '+-' notation and
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hexadecimal representation.
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`debug_spindet <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks_routines.irp.f#L155>`_
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Subroutine to print the content of a determinant in '+-' notation and
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hexadecimal representation.
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2014-05-14 00:01:31 +02:00
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`full_ijkl_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L12>`_
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2014-05-13 13:57:58 +02:00
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Bitmask to include all possible MOs
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2015-06-04 12:15:54 +02:00
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2016-09-22 12:15:20 +02:00
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`full_ijkl_bitmask_4 <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L29>`_
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Undocumented
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`generators_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L190>`_
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2015-07-20 14:19:11 +02:00
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Bitmasks for generator determinants.
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(N_int, alpha/beta, hole/particle, generator).
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.br
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3rd index is :
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.br
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* 1 : hole for single exc
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.br
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* 2 : particle for single exc
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.br
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* 3 : hole for 1st exc of double
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.br
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* 4 : particle for 1st exc of double
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.br
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* 5 : hole for 2nd exc of double
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.br
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* 6 : particle for 2nd exc of double
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.br
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2016-09-22 12:15:20 +02:00
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`generators_bitmask_restart <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L131>`_
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2015-04-13 10:44:49 +02:00
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Bitmasks for generator determinants.
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(N_int, alpha/beta, hole/particle, generator).
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.br
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2014-06-03 19:14:12 +02:00
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3rd index is :
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2015-04-13 10:44:49 +02:00
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.br
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2014-06-03 19:14:12 +02:00
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* 1 : hole for single exc
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2015-04-13 10:44:49 +02:00
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.br
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* 2 : particle for single exc
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.br
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2014-06-03 19:14:12 +02:00
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* 3 : hole for 1st exc of double
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2015-04-13 10:44:49 +02:00
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.br
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2014-06-03 19:14:12 +02:00
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* 4 : particle for 1st exc of double
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.br
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* 5 : hole for 2nd exc of double
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.br
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* 6 : particle for 2nd exc of double
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.br
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2014-06-03 19:14:12 +02:00
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2015-06-04 12:15:54 +02:00
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2016-09-22 12:15:20 +02:00
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`hf_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L41>`_
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2014-05-13 13:57:58 +02:00
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Hartree Fock bit mask
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2015-06-04 12:15:54 +02:00
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2016-09-22 12:15:20 +02:00
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`i_bitmask_gen <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L469>`_
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2014-06-03 19:14:12 +02:00
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Current bitmask for the generators
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2015-06-04 12:15:54 +02:00
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2016-09-22 12:15:20 +02:00
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`inact_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L321>`_
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inact_bitmask : Bitmask of the inactive orbitals which are supposed to be doubly excited
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in post CAS methods
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n_inact_orb : Number of inactive orbitals
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virt_bitmask : Bitmaks of vritual orbitals which are supposed to be recieve electrons
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in post CAS methods
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n_virt_orb : Number of virtual orbitals
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2015-04-13 10:44:49 +02:00
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2015-06-04 12:15:54 +02:00
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2016-09-22 12:15:20 +02:00
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`inact_virt_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L425>`_
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2015-07-20 14:19:11 +02:00
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Reunion of the inactive and virtual bitmasks
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2016-09-22 12:15:20 +02:00
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`index_holes_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L260>`_
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Index of the holes in the generators_bitmasks
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`index_particl_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L271>`_
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Index of the holes in the generators_bitmasks
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`initialize_bitmask_to_restart_ones <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L3>`_
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Initialization of the generators_bitmask to the restart bitmask
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`is_a_1h <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmask_cas_routines.irp.f#L476>`_
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Undocumented
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`is_a_1h1p <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmask_cas_routines.irp.f#L454>`_
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Undocumented
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`is_a_1h2p <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmask_cas_routines.irp.f#L465>`_
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Undocumented
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`is_a_1p <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmask_cas_routines.irp.f#L487>`_
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Undocumented
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`is_a_2p <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmask_cas_routines.irp.f#L498>`_
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Undocumented
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2015-06-04 12:15:54 +02:00
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`is_a_two_holes_two_particles <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmask_cas_routines.irp.f#L206>`_
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Undocumented
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2016-09-22 12:15:20 +02:00
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`is_the_hole_in_det <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/find_hole.irp.f#L1>`_
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Undocumented
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`is_the_particl_in_det <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/find_hole.irp.f#L29>`_
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2015-07-20 14:19:11 +02:00
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Undocumented
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2016-09-22 12:15:20 +02:00
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`list_act <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L502>`_
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list of active orbitals
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`list_core <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L437>`_
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List of the core orbitals that are never excited in post CAS method
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`list_inact <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L370>`_
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list_inact : List of the inactive orbitals which are supposed to be doubly excited
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in post CAS methods
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list_virt : List of vritual orbitals which are supposed to be recieve electrons
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in post CAS methods
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2015-06-04 12:15:54 +02:00
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`list_to_bitstring <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks_routines.irp.f#L29>`_
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Returns the physical string "string(N_int,2)" from the array of
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occupations "list(N_int*bit_kind_size,2)
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2016-09-22 12:15:20 +02:00
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`list_virt <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L371>`_
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list_inact : List of the inactive orbitals which are supposed to be doubly excited
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in post CAS methods
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list_virt : List of vritual orbitals which are supposed to be recieve electrons
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in post CAS methods
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2015-07-20 14:19:11 +02:00
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2016-09-22 12:15:20 +02:00
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`modify_bitmasks_for_hole <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L25>`_
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modify the generators_bitmask in order that one can only excite
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the electrons occupying i_hole
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`modify_bitmasks_for_hole_in_out <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L60>`_
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modify the generators_bitmask in order that one can only excite
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the electrons occupying i_hole
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`modify_bitmasks_for_particl <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L83>`_
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modify the generators_bitmask in order that one can only excite
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the electrons to the orbital i_part
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`n_act_orb <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L490>`_
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number of active orbitals
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`n_cas_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L247>`_
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2015-04-13 10:44:49 +02:00
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Number of bitmasks for CAS
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2014-06-03 19:14:12 +02:00
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2015-06-04 12:15:54 +02:00
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2016-09-22 12:15:20 +02:00
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`n_core_orb <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L453>`_
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Core orbitals bitmask
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`n_generators_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L67>`_
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2014-06-03 19:14:12 +02:00
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Number of bitmasks for generators
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2015-06-04 12:15:54 +02:00
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2016-09-22 12:15:20 +02:00
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`n_generators_bitmask_restart <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L98>`_
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Number of bitmasks for generators
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`n_inact_orb <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L323>`_
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inact_bitmask : Bitmask of the inactive orbitals which are supposed to be doubly excited
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in post CAS methods
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n_inact_orb : Number of inactive orbitals
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virt_bitmask : Bitmaks of vritual orbitals which are supposed to be recieve electrons
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in post CAS methods
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n_virt_orb : Number of virtual orbitals
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2015-07-20 14:19:11 +02:00
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2014-05-14 00:01:31 +02:00
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`n_int <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L3>`_
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2014-05-13 13:57:58 +02:00
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Number of 64-bit integers needed to represent determinants as binary strings
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2016-09-22 12:15:20 +02:00
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`n_virt_orb <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L324>`_
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inact_bitmask : Bitmask of the inactive orbitals which are supposed to be doubly excited
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in post CAS methods
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n_inact_orb : Number of inactive orbitals
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virt_bitmask : Bitmaks of vritual orbitals which are supposed to be recieve electrons
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in post CAS methods
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n_virt_orb : Number of virtual orbitals
|
2015-07-20 14:19:11 +02:00
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|
2015-06-04 12:15:54 +02:00
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`number_of_holes <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmask_cas_routines.irp.f#L1>`_
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Undocumented
|
2014-06-03 19:14:12 +02:00
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|
2014-05-13 13:57:58 +02:00
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|
2016-09-22 12:15:20 +02:00
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`number_of_holes_verbose <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmask_cas_routines.irp.f#L400>`_
|
2015-06-04 12:15:54 +02:00
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Undocumented
|
2014-05-13 13:57:58 +02:00
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|
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|
2015-06-04 12:15:54 +02:00
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|
`number_of_particles <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmask_cas_routines.irp.f#L103>`_
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Undocumented
|
2014-05-24 02:39:18 +02:00
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|
2015-05-06 15:05:08 +02:00
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|
2016-09-22 12:15:20 +02:00
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`number_of_particles_verbose <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmask_cas_routines.irp.f#L428>`_
|
2015-06-04 12:15:54 +02:00
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Undocumented
|
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|
|
2015-04-13 10:44:49 +02:00
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|
`print_det <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks_routines.irp.f#L138>`_
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|
Subroutine to print the content of a determinant using the '+-' notation
|
2014-05-13 13:57:58 +02:00
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|
2015-06-04 12:15:54 +02:00
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|
|
|
2016-09-22 12:15:20 +02:00
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|
`print_generators_bitmasks_holes <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L169>`_
|
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|
Undocumented
|
|
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`print_generators_bitmasks_holes_for_one_generator <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L213>`_
|
|
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|
Undocumented
|
|
|
|
|
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|
|
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|
`print_generators_bitmasks_particles <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L191>`_
|
|
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|
Undocumented
|
|
|
|
|
|
|
|
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|
`print_generators_bitmasks_particles_for_one_generator <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L236>`_
|
|
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|
Undocumented
|
|
|
|
|
|
|
|
|
2015-05-06 15:05:08 +02:00
|
|
|
`print_spindet <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks_routines.irp.f#L171>`_
|
|
|
|
Subroutine to print the content of a determinant using the '+-' notation
|
|
|
|
|
2014-05-13 13:57:58 +02:00
|
|
|
|
2016-09-22 12:15:20 +02:00
|
|
|
`ref_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L59>`_
|
2015-06-04 12:15:54 +02:00
|
|
|
Reference bit mask, used in Slater rules, chosen as Hartree-Fock bitmask
|
|
|
|
|
|
|
|
|
2016-09-22 12:15:20 +02:00
|
|
|
`reunion_of_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L412>`_
|
2015-07-20 14:19:11 +02:00
|
|
|
Reunion of the inactive, active and virtual bitmasks
|
|
|
|
|
|
|
|
|
2016-09-22 12:15:20 +02:00
|
|
|
`reunion_of_cas_inact_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L528>`_
|
|
|
|
Reunion of the inactive, active and virtual bitmasks
|
|
|
|
|
|
|
|
|
|
|
|
`reunion_of_core_inact_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L397>`_
|
|
|
|
Reunion of the inactive, active and virtual bitmasks
|
|
|
|
|
|
|
|
|
|
|
|
`set_bitmask_hole_as_input <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L144>`_
|
|
|
|
set the generators_bitmask for the holes
|
|
|
|
as the input_bimask
|
|
|
|
|
|
|
|
|
|
|
|
`set_bitmask_particl_as_input <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/modify_bitmasks.irp.f#L119>`_
|
|
|
|
set the generators_bitmask for the particles
|
|
|
|
as the input_bimask
|
|
|
|
|
|
|
|
|
|
|
|
`unpaired_alpha_electrons <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L478>`_
|
2015-07-20 14:19:11 +02:00
|
|
|
Bitmask reprenting the unpaired alpha electrons in the HF_bitmask
|
|
|
|
|
|
|
|
|
2016-09-22 12:15:20 +02:00
|
|
|
`virt_bitmask <http://github.com/LCPQ/quantum_package/tree/master/src/Bitmask/bitmasks.irp.f#L322>`_
|
|
|
|
inact_bitmask : Bitmask of the inactive orbitals which are supposed to be doubly excited
|
|
|
|
in post CAS methods
|
|
|
|
n_inact_orb : Number of inactive orbitals
|
|
|
|
virt_bitmask : Bitmaks of vritual orbitals which are supposed to be recieve electrons
|
|
|
|
in post CAS methods
|
|
|
|
n_virt_orb : Number of virtual orbitals
|
2014-05-13 13:57:58 +02:00
|
|
|
|