On 5/06/2012 4:34 PM, Bao Kai wrote:
Hi, all,
I am still trying to do my simulation with liquid mixtures.
I have a simple question now. When I writing my .top file, how could I
know if I should use epsilon-sigma or c6-c12 parameters for the LJ
potential? It seems that in some examples, c6-c12 parameters are used
and epsilon-sigma parameters are used in some other examples.
The model you are implementing chooses this and the rule by which
parameters of different atom types get combined into interaction type
parameters. The rationale for that choice often seems vague, IMO
probably doesn't matter much, and is not really your problem until you
go to design models. Literature is your friend, here.
Mark
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