[Pw_forum] Acoustic branches

[meheut at impmc.jussieu.fr]

Dear Drs,

I would like to use pwscf to compute the acoustic branches only of the
crystal. I already computed the complete phonon dispersion, but the
acoustic branches are crossing with other modes. Do you think possible
to disjoin the acoustic modes frequencies from the other modes?

Best wishes.

Merlin meheut