[Pw_forum] time-dependent perturbation theory

[yelena]

Hello!
I was wondering, is there package in QE that can calculate phonon
frequencies within time-dependent perturbation theory?
I have material with Kohn anomaly and there is significant 
non-adiabatic effect.
Thank you,
J.Pesic
Center for Solid State Physics and New Materials
Institute of Physics Belgrade


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Institute of Physics Belgrade
Pregrevica 118, 11080 Belgrade, Serbia
http://www.ipb.ac.rs/