Strongly correlating liquids

Strongly correlating liquids are defined as those for whom $R\geq 0.9$ where (Eq. 2 )

$R={\frac {\langle \Delta V\Delta U\rangle }{\sqrt {\langle (\Delta V)^{2}\rangle \langle (\Delta U)^{2}\rangle }}}$

where $\Delta U$ represents fluctuations of the potential in the NVT ensemble and $V$ is the virial (see also Virial pressure).

Lennard-Jones liquid

The liquid phase formed by the Lennard-Jones model is an example of a strongly correlating liquid.

References

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