[Pw_forum] a question about electron-phonon coupling

Paolo Giannozzi giannozz at nest.sns.it
Fri Sep 29 12:35:43 CEST 2006

On Sep 29, 2006, at 11:49 , Malgorzata Wierzbowska wrote:

> Actually the part of elphon.f90 with the epsilon which you mentioned
> is written by Francesco Mauri and probably he could give you a better
> explanation of the use of 20Ry as a cutoff.

20 cm^-1, actually: electron-phonon coefficients are seto to zero
for phonons whose frequency is smaller than 20 cm^-1


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