Question on Coulomb potential in LAMMPS

بسم الله الرحمن الرحيم

Hello,

I want to ask about the constant C ( energy conversation factor ) in Coulomb potential, does it contain e^2/4pieps0 ? and hence the eps in the potential mean relative permittivity ?

Thank you.

بسم الله الرحمن الرحيم

Hello,

I want to ask about the constant C ( energy conversation factor ) in Coulomb
potential, does it contain e^2/4*pi*eps0 ?

the exact value of C depends on the choice of units.

and hence the eps in the
potential mean relative permittivity ?

yes. as indicated in the documentation, this epsilon represents the
property, that can be set with the "dielectric" command, which is 1.0
by default (i.e. vacuum permitivity, i.e. no assumed constant implicit
solvent screening).

axel.