Radial distribution function: Difference between revisions

Revision as of 00:37, 8 March 2013

Revision as of 12:49, 6 November 2013

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Finally, we rename <math>S(\mathbf{q}) \equiv S'(\mathbf{q})</math> and, if the system is a liquid, we can invoke its isotropy:

{{NumBlk|:| <math>S(q) = 1 + \rho \int_V \mathrm{d} \mathbf{r} \, \mathrm{e}^{-i \mathbf{q}\mathbf{r}} [g(r) - 1] = 1 + 4\pi\rho\frac{1}{q} \int \mathrm{d} r \, r\, \mathrm{sin}(qr) [g(r) - 1]</math>.|{{EquationRef|6}}}}

===The compressibility equation===