1.0 KiB
1.0 KiB
Known bugs
Scattering result asymmetry
The lattice scattering code (such as finitesqlatzsym-scattery.py) produces asymmetric results where one should not get them, due to the system symmetry.
It seems that the asymmetry appears mostly in the y-direction (i.e. for example the scattering/absorption cross section at k = (kx, ky, kz) is not exactly the same as k = (kx, -ky, kz).
- What has been checked (hopefully):
- The flip operators for electric waves
- Some weird kind of rounding or other numerical error depending on the position ordering of the matrix (randomized indices give the same asymmetry).
- What has not been checked (so well):
- The x,y,z-flip operators for magnetic waves (i.e. are they really supposet to bejust the same as the operators for electric waves, just with opposite sign?)
- zplane_pq_y
- the translation operators
Singular value asymmetry
Similar as the scattering result asymmetry, although not necessarily only in the y-direction?