[lammps-users] Lj desnity

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1

Dear All,

In LJ units the desnity is rho* = rho sigma^dim/m

What’s sigma^dim/m?

I have rho* for argon and want to calculate the actual density.

Sorry for the trivial question.

Best regards,
Yunes Salman

2

which of “sigma”, “dim”, or “m” is not clear to you?

3

Dear Axel,

Sigma and dim but mostly dim.

Best regards,
Yunes Salman

4

Sigma is your “reference sigma” i.e. the sigma that defines your reduced length unit.
Dim is the dimensionality, i.e. 2 is you are using dimension 2 in your input or 3 if you are using dimension 3 (which is the default).