Pair distribution function

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For a fluid of particles, enclosed in a volume at a given temperature (canonical ensemble) interacting via the `central' intermolecular pair potential , the two particle distribution function is defined as

where , where is the Boltzmann constant.

Exact convolution equation for [edit]

See Eq. 5.10 of Ref. 1:

where, i.e. .

See also[edit]


  1. J. S. Rowlinson "The equation of state of dense systems", Reports on Progress in Physics 28 pp. 169-199 (1965)
  2. N. G. Almarza and E. Lomba "Determination of the interaction potential from the pair distribution function: An inverse Monte Carlo technique", Physical Review E 68 011202 (2003)