I am trying to obtain the GW eigenenergies on a k-point grid generated by wannier90's kmesh.pl tool (this one just generates a k-mesh in the full BZ with weights). The goal is to read these energies with the EPW code to calculate electron phonon coupling on GW corrected bands. The EPW manual says:
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Can be used to read GW (or other) eigenenergies. The code expect a file called "prefix.eig" to be read. One need to provide the same number of bands as in the nscf calculations and all k-points.
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%GWKpts # K points list
0.00000000 | 0.00000000 | 0.16666667 |
0.00000000 | 0.00000000 | 0.33333333 |
0.00000000 | 0.00000000 | 0.50000000 |
...
0.83333333 | 0.83333333 | 0.50000000 |
0.83333333 | 0.83333333 | 0.66666667 |
0.83333333 | 0.83333333 | 0.83333333 |
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<---> [06.02] == GW K-grid analyzer ==
<---> User K-points : 10
<---> Reducing & Expanding the 2176 k-points ...
<---> BZ -> IBZ reduction | | [000%] --(E) --(X)
<---> BZ -> IBZ reduction |########################################| [100%] --(E) --(X)
<01s> Reduced K-grid points: 243
---------- Reduced K-grid ----------
0.0000000 0.0000000 0.0000000 0.0000974 1
0.0000000 0.0000000 0.1666667 0.0007793
0.0000000 0.0000000 0.3333334 0.0007793
0.0000000 0.0000000 -0.5000001 0.0003896
0.0000000 0.1666667 0.1666667 0.0005845
0.0000000 0.1666667 0.3333334 0.0023378
-0.0000000 0.1666667 0.5000000 0.0023378
0.0000000 0.1666667 -0.3333334 0.0023378
-0.0000000 0.1666667 -0.1666667 0.0011689
0.0000000 0.3333334 0.3333334 0.0005845
-0.0000001 0.3333333 0.4999999 0.0023378
-0.0000000 0.3333333 -0.3333334 0.0011689
0.0000000 -0.5000001 -0.5000001 0.0002922
0.1666667 0.3333334 0.5000000 0.0023378
0.1666667 0.3333333 -0.3333334 0.0023378
0.1666667 -0.5000001 -0.3333334 0.0011689
************ -1.9960938 -2.0078125 0.0031171
************ -1.9882812 -2.1601562 0.0044808
************ -1.8242188 -1.8320312 0.0035067
************ -2.1523438 -2.0000000 0.0035067
************ -1.9960938 -2.0078125 0.0027275
************ -1.9960938 -1.8398438 0.0044808
************ -2.1562500 -2.1679688 0.0035067
************ -1.8320312 -2.0039062 0.0044808
************ -1.9882812 -2.0039062 0.0040912
************ -1.9921875 -2.3398438 0.0035067
************ -1.6523438 -1.6601562 0.0038964
************ -2.3242188 -2.0000000 0.0042860
************ -1.9843750 -2.0039062 0.0046756
TIA!
Chris