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Dear all:

I try to calculate the quasiparticle band structure of BaTe by GW method. I 
try
to output the eigenvalues of all the occupied and some unoccupied states. But
the GW eigenvalues is disordered at some kpoints. For example:
**************************************************************************
  k =    0.000  -0.500   0.000
 Band     E0 <VxcLDA>   SigX SigC(E0)      Z dSigC/dE  Sig(E)    E-E0       E
    1 -14.248 -11.092 -17.036   6.414   5.527   0.819  -8.494   2.599 -11.649
    2  -7.869  -8.686 -11.792   3.219   0.707  -0.415  -8.606   0.080  -7.788
    3  -5.074  -9.601 -11.421   2.381   0.771  -0.296  -9.168   0.433  -4.641
    4  -5.074  -9.601 -11.421   2.387   0.772  -0.296  -9.163   0.438  -4.636
    5  -2.693  -5.567  -1.034  -3.028   0.779  -0.284  -4.395   1.172  -1.521
    6   0.033  -7.189  -3.251  -1.571   0.830  -0.205  -5.225   1.964   1.997
    7   0.875  -6.928  -2.767  -2.379   0.763  -0.311  -5.569   1.360   2.234
    8   1.199  -6.064  -1.072  -2.702   0.767  -0.304  -4.308   1.756   2.955
    9   1.246  -6.658  -1.912  -2.546   0.752  -0.329  -5.003   1.655   2.902
   10   1.911  -7.434  -2.497  -2.356   0.767  -0.303  -5.453   1.981   3.892
   11   1.911   0.000   0.000  -0.618   0.949  -0.054  -0.586  -0.586   1.324
   12   2.061   0.000   0.000  -0.618   0.949  -0.054  -0.586  -0.586   1.475
   13   2.061   0.000   0.000  -0.618   0.949  -0.054  -0.586  -0.586   1.475
   14   3.087   0.000   0.000  -0.618   0.949  -0.054  -0.586  -0.586   2.500
   15   3.181   0.000   0.000  -0.618   0.949  -0.054  -0.586  -0.586   2.595
   16   4.261   0.000   0.000  -0.618   0.949  -0.054  -0.586  -0.586   3.675
********************************************************************************
We can find that the 10th eigenvalue of GW is larger than 11th and 12th ones.
This is right?

Tieyu Lu