ML LMAX2: Difference between revisions

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{{TAGDEF|ML_LMAX2|[integer]|4}}
{{TAGDEF|ML_LMAX2|[integer]}}
{{DEF|ML_LMAX2|4|for {{TAG|ML_LAFILT2}} {{=}} .TRUE.|6|else}}


Description: This tag specifies the maximum angular momentum quantum number of spherical harmonics used to expand atomic distributions within the machine learning force field method.
Description: This tag specifies the maximum angular momentum quantum number <math>L_\max</math> of spherical harmonics used to expand atomic distributions within the machine learning force field method (see [[Machine learning force field: Theory#Descriptors|this section]]).
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By default an angular filtering (see {{TAG|ML_LAFILT2}} and {{TAG|ML_IAFILT2}}) with a filtering parameter of {{TAG|ML_AFILT2}}=0.002 is used where a value of {{TAG|ML_LMAX2}}=4 is perfectly safe for most applications. If the angular filter is switched off we recommend to use a value of {{TAG|ML_LMAX2}}=6 (this is then defaulted).
By default an angular filtering (see {{TAG|ML_LAFILT2}} and {{TAG|ML_IAFILT2}}) with a filtering parameter of {{TAG|ML_AFILT2}}=0.002 is used where a value of {{TAG|ML_LMAX2}}=4 is perfectly safe for most applications. If the angular filter is switched off we recommend to use a value of {{TAG|ML_LMAX2}}=6 (this is then the default value).





Revision as of 18:12, 11 October 2021

ML_LMAX2 = [integer] 

Default: ML_LMAX2 = 4 for ML_LAFILT2 = .TRUE.
= 6 else

Description: This tag specifies the maximum angular momentum quantum number [math]\displaystyle{ L_\max }[/math] of spherical harmonics used to expand atomic distributions within the machine learning force field method (see this section).


By default an angular filtering (see ML_LAFILT2 and ML_IAFILT2) with a filtering parameter of ML_AFILT2=0.002 is used where a value of ML_LMAX2=4 is perfectly safe for most applications. If the angular filter is switched off we recommend to use a value of ML_LMAX2=6 (this is then the default value).


Related Tags and Sections

ML_LMLFF, ML_MRB1, ML_MRB2, ML_LAFILT2, ML_IAFILT2, ML_AFILT2

Examples that use this tag