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LOCPOT = local_energy.dat

Posted: Mon Mar 02, 2015 4:11 pm
by Ryan_McAvoy
Is the data in local_energy.dat equivalent to the LOCPOT total local energy calculated by VASP or do I need to have local_energy.dat output for every particle and then sum them?

Re: LOCPOT = local_energy.dat

Posted: Tue Mar 03, 2015 3:57 pm
by Neil Drummond
Dear Ryan,

The data written to local_energy.dat by CASINO is information relating to the cusp-correction scheme for Gaussian orbitals. It is a single-orbital "local energy": see J. Chem. Phys. 122, 224322 (2005). It is not obviously related to the true local energy.

I've never used VASP, but I will guess that "LOCPOT" is the local part of the electron-ion potential energy (as opposed to the nonlocal pseudopotential energy).

Best wishes,

Neil.