[gmx-users] minimum number of atoms required.

[karamyog singh]

Dear users, I have a system with just one atom. I am using periodic boundary
conditions. No matter what conditions I use, the atom doesnt seem to move.
Are a minimum of 2 atoms required to do a simulation in Gromacs? If I have
only one atom and I am using periodic boundary conditions then whether I
have interaction potential or not, the atom should move with some velocity.
However this does not happen. Can anyone tell me what is the reason for
that?

Thanks.
Karamyog Singh.
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