Elsevier

Chemical Physics Letters

Volume 246, Issue 3, 24 November 1995, Pages 204-208
Chemical Physics Letters

Many-body and quantum effects in the radial distribution function of liquid neon and argon

https://doi.org/10.1016/0009-2614(95)01108-LGet rights and content

Abstract

Most simulations of liquids are performed in the framework of classical mechanics and the approximation of additivity of pair potentials. Besides errors due to the approximate pair potential, this leads to errors due to quantum effects and the neglect of many-body interactions. By calculating the radial distribution function from pure theory for liquid neon and argon with a quantum effective Wigner-Kirkwood potential and comparison with experiments, it is shown that quantum effects are sizeable for liquid neon at lower temperatures, whereas many-body effects are negligible.

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