LOCALIZED BASIS: Difference between revisions

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(Spell out cRPA in description; {{TAG|ALGO|value}} form for CRPA and 2E4W)
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{{FILE|URijkl}}
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{{sc|LOCALIZED_BASIS|Examples|Examples that use this tag}}
{{sc|LOCALIZED_BASIS|Howto|Workflows that use this tag}}
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[[Category:Wannier functions]][[Category:Many-body perturbation theory]][[Category:Constrained-random-phase approximation]]
[[Category:Wannier functions]][[Category:Many-body perturbation theory]][[Category:Constrained-random-phase approximation]]

Revision as of 09:27, 20 March 2026

LOCALIZED_BASIS = MLWF | BLOCH | LOCPROJ 

Description: Specifies which basis is used for Coulomb matrix elements in constrained random-phase approximation (cRPA) calculations.


This tag is effective for ALGO = CRPA[R] and ALGO = 2E4W and is ignored otherwise. The tag affects how NTARGET_STATES is interpreted. For instance

LOCALIZED_BASIS = BLOCH
NTARGET_STATES = 1 4 5 8 

evaluates the Coulomb matrix elements in the Bloch basis for band 1, 4, 5 and 8.

In contrast,

LOCALIZED_BASIS = MLWF
NTARGET_STATES = 1 4 5 8 

evaluates the Coulomb matrix elements in the Wannier basis for the states 1, 4, 5 and 8 defined in the INCAR file or read from the WANPROJ file.

Related tags and articles

ALGO, NCRPA_BANDS, NTARGET_STATES, LOCPROJ, VIJKL, UIJKL, VRijkl, URijkl

Workflows that use this tag