2017-07-19 17:26:27 +03:00
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Known bugs
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===========
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2018-04-26 06:11:09 +03:00
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Wrong factor on B coefficient
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-----------------------------
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Under Kristensson normalisation (with CS = -1), my code gives
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B(1,0,n,n)/B(1,0,n,-n) == -(2n)! at (x,y,z) = (x,0,0)
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(expected plus or minus 1).
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A-coefficients seem to behave correctly.
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2018-05-06 20:34:35 +03:00
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Translation coefficients inconsistent
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-------------------------------------
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The translation coefficients currently do not work correctly except for certain
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combinations of additional i-factors (defined by the [AB][NMF][123] macros
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in translations.c) and only for certain normalisations.
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QPMS_NORMALISATION_KRISTENSSON_CS does not work at all
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QPMS_NORMALISATION_NONE_CS does not work at all
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QPMS_NORMALISATION_TAYLOR_CS works for the following macros defined:
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AN1 AM0 BN1 BM0 BF0
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AN1 AM0 BN3 BM2 BF2
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AN3 AM2 BN1 BM0 BF0
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AN3 AM2 BN3 BM2 BF2
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QPMS_NORMALISATION_TAYLOR works for the following macros defined:
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AN1 AM2 BN1 BM3 BF0
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AN1 AM2 BN3 BM0 BF2
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AN3 AM0 BN1 BM2 BF0
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AN3 AM0 BN3 BM0 BF2
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The default behaviour is now that the QPMS_NORMALISATION_TAYLOR_CS works.
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Longitudinal waves
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------------------
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Plane wave decompositions gives wrong value on the longitudinal part.
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The implementation of the L coefficients OR the longitudinal waves
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is thus probably wrong.
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2017-07-19 17:26:27 +03:00
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Scattering result asymmetry
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---------------------------
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The lattice scattering code (such as finitesqlatzsym-scattery.py) produces
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asymmetric results where one should not get them, due to the system symmetry.
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It seems that the asymmetry appears mostly in the y-direction (i.e.
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for example the scattering/absorption cross section at k = (kx, ky, kz)
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is not exactly the same as k = (kx, -ky, kz).
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What has been checked (hopefully):
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- The flip operators for electric waves
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- Some weird kind of rounding or other numerical error depending on
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the position ordering of the matrix (randomized indices give
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the same asymmetry).
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What has not been checked (so well):
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- The x,y,z-flip operators for magnetic waves (i.e. are they really
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supposet to bejust the
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same as the operators for electric waves, just with opposite sign?)
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- zplane_pq_y
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- the translation operators
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Singular value asymmetry
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------------------------
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Similar as the scattering result asymmetry, although not necessarily
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only in the y-direction?
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2018-04-25 16:08:55 +03:00
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Overflows etc.
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--------------
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Assertion failed in gaunt_xu for test_vswf_translations.c and high values of LMAX
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(LMAX=25)
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