e-ph matrix for coarse grid

[zahra]

Dear EPW developers and users,

I'm looking for e-ph matrix elements in Block representation for coarse grid and I trace it in elphon_shuffle_wrap.f90 and elphon_shuffle.f90 as 'epmatq'. But I am not sure about the definition and the unit. Could anybody help me to find the subroutine that is calculating this variable and its unit?
I've got unreasonable results and I need to be sure that wannierization is done correctly.

Regards,
Zahra

[sponce]

Hello Zahra,

You are correct, it is "epmatq".

This quantity is the quantity presented at Eq. 2 of the EPW paper but without the 1/(sqrt(2\omega)).

Best,

Samuel

[zahra]

Hi Samuel,

Thanks a lot.

Regards,
Zahra