### e-e calculation using GW

Posted:

**Sun Feb 19, 2017 5:48 pm**Dear users and developers,

I want to calculate e-e scattering lifetimes in a metal based on GW approximation based on abinit. This is my first time working on GW. I was wondering how long it would take for a metal like copper to get the lifetimes starting from the scf calculations in DFT with and without running yambo in parallel. Is using Quantum espresso Pw + yambo faster than Abinit + yambo ? I also would like to add {DFT+U with spin polarization} as well after my DFT calculation. Apologies if the questions are too simple.

Thanks

Ajit

I want to calculate e-e scattering lifetimes in a metal based on GW approximation based on abinit. This is my first time working on GW. I was wondering how long it would take for a metal like copper to get the lifetimes starting from the scf calculations in DFT with and without running yambo in parallel. Is using Quantum espresso Pw + yambo faster than Abinit + yambo ? I also would like to add {DFT+U with spin polarization} as well after my DFT calculation. Apologies if the questions are too simple.

Thanks

Ajit