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about CFCMC potential

Started by zhaoli2023, December 20, 2019, 04:48:57 AM

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zhaoli2023

Hi Professor Dubbeldam,
I wonder is there a specific reason why energies are capped when using CFC (in potentials.c, PotentialValue function)? Is that because CF energies are harder to evaluate than traditional LJ 12-6?

Thanks for your help!!!

David Dubbeldam

Energies are capped at high values to avoid numerical artifacts. In CFCMC, you can also use a small distance overlap criteria (as in the original CFCMC work of the Maginn-group).

zhaoli2023

Thanks for your reply!
I get it.

Best,
Zhao