Abstract
Equilibrium correlation functions for a dense classical fluid are obtained by integrating the equation of motion of a system of 864 particles interacting through a Lennard-Jones potential. The behavior of the correlation function at large distance, and that of its Fourier transform at large wave number, are discussed in detail and shown to be related to the existence of a strong repulsion in the potential. A simple hard-sphere model is shown to reproduce very well the Fourier transform of those correlation functions at high density, the only parameter of the model being the diameter $a$ of the hard spheres.
Keywords
Fourier transformHard spheresCorrelation function (quantum field theory)PhysicsClassical fluidsSPHERESOrnstein–Zernike equationStatistical physicsSimple (philosophy)CorrelationRadial distribution functionClassical mechanicsFunction (biology)Mathematical analysisIntegral equationQuantum mechanicsMathematicsMolecular dynamicsGeometry
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Publication Info
- Year
- 1968
- Type
- article
- Volume
- 165
- Issue
- 1
- Pages
- 201-214
- Citations
- 1223
- Access
- Closed
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Cite This
Loup Verlet
(1968).
Computer "Experiments" on Classical Fluids. II. Equilibrium Correlation Functions.
Physical Review
, 165
(1)
, 201-214.
https://doi.org/10.1103/physrev.165.201
Identifiers
- DOI
- 10.1103/physrev.165.201