EPW Forum

EPW v5.8
New features in EPW v.5.8 (12/2023):

Real part of the electron self-energy (bandgap renormalization) using Wannier function perturbation theory

i want to know how to do it , could you tell me, thank you very much.

I use the "dipole_sp" to calculate the transport of graphene, but i see the problem in epw2.out, i do not know how to solve it. =============== Temp Fermi Elec density Population SR Drift Elec mobility [K] [eV] [cm^-2] [e per cell] [cm^2/Vs] ==========================================================...

Hello everyone， Using the QE, i obtain the dielectric tensors by ph.x, i want to know, Is this dielectric constant a high frequency dielectric constant or a static dielectric constant？ thank you very much. <EPSILON type="real" size="9" columns="3"> 1.040587278179623E+002 7.105427357601002E-015 -7.10...

The attachment contains input and output of scf, nscf and epw,thanks.

Dear all.
i calculate the transport property of 2D material, but i encounter the problem " Error in routine inv_mat (1): matrix is singular " using epw.
how to deal with it? thanks.

how to get linewidth.phself under different carrier concentration in EPW5.3.1 of QE6.7?