VASP Forum

Hi
I've heard VASP has incorporated its own electron-phonon coupling functionality.
What's the name of it? In what way can we initiate it?
Could someone please reply?

Dear SKM,

VASP includes functionality to treat electron–phonon interactions based on many-body perturbation theory. The best entry point to the available features is the VASP Wiki overview page: https://vasp.at/wiki/Category:Electron- ... teractions .

This page summarizes the currently implemented methods and links to detailed documentation. If you would like to try the new electron–phonon functionality directly, the following tutorials demonstrate typical workflows:

Band gap renormalization due to electron–phonon coupling
https://vasp.at/wiki/Bandgap_renormaliz ... n_coupling

Transport coefficients including electron–phonon scattering
https://vasp.at/wiki/Transport_coeffici ... scattering

These examples show how to set up calculations and which tags are required in the INCAR.

In addition, VASP is collaborating with the EPW project to enable workflows that combine VASP with Wannier-based electron–phonon calculations. Details of this interface are described in the recent preprint:

EPW–VASP interface for electron‑phonon calculations
https://arxiv.org/abs/2511.21905

This interface is expected to become available in the near future.

Best regards,
Alex

Dear VASP team

Is it already possible to combine electron-phonon coupling simulations with MLWFs?
If not, when will the EPW-VASP interface become available?

Kind regards

Tom

Dear Tom,

Unfortunately, it is not yet possible to use Wannier functions for electron-phonon interactions in VASP. The EPW-VASP interface is a joint effort and the release will depend on the progress in both codes. Therefore, I cannot give you any definitive date. Keep an eye on our homepage to see when the release becomes available.