Yambo Community Forum

Dear palful:
When I try to plot the weight of exciton,I konw I could change the distance between the high kpoints.
However,I found that the interpolation function is defined in excitondb.py, and it is SKW interpolation. So how do I adjust the density of this interpolation? I see some parameters, but I am not sure which is the relevant explanation?
Looking forward to your reply!
Best wishes
Quxiao

Dear Quxiao,

The path of kpoints for the interpolation is defined in this way (hexagonal lattice):

path = Path([ [[ 0.0, 0.0, 0.0],'$\Gamma$'],
[[ 0.5, 0.0, 0.0],'M'],
[[1./3.,1./3., 0.0],'K'],
[[ 0.0, 0.0, 0.0],'$\Gamma$']], [npoints,npoints,npoints)] )

The number of points in each segment (npoints) define the density of the interpolation. You can increase until getting the desired density.

The variable path enters in the "interpolate" function of the class YamboExcitonDB.

Best,
Alejandro.

Dear amolina:
Thanks a lot,it is very useful!
Best wishes!
Quxiao