hello everyone，

I am learning how to use Lammps. I found a Ni-He potential function is proposed in the literature. I want to write the Ni-He potential function according to the author’s description for the following simulation. How can linear combinations of gaussian functions be written in lammps ？I tried to write the potential function presented in the paper according to my understanding, which is shown in Figure 2. Is there anyone who has made similar modifications? Could you help me solve this problem?

Thank you！

Jie

Ref:《Atomistic simulations and experimental measurements of helium nano-bubbles in nickel》