[lammps-users] Dielectric Constant

Dear Sir,

I am using Coarse-grained method to simulate polyelectrolytes brushes in water. And water is replaced by a dielectric background and a heat bath.

Under LJ units, the pair potential of pair_style lj/cut/coul/long was choose.

Now it’s the problem, I’m confused about the value of dielectric constant considering the water as a media.

According to the manual, dielectric constant = 1 means vacuum. How about in water?

Thanks a lot!