coul/long

Hello,

I am trying to analytically match the potential of pair style coul/long in lammps. What is the C constant used in the potential shown in the user manual: E=CQiQj/epsilon*r ?

For coul/long, is the potential E=(CQiQj/epsilonr)(erfc(alpha*r)) for the real space portion of ewald sum?

Hello,

I was able to resolve this issue.

Thanks!