Dynamic structure factor of a dilute Lennard-Jones gas | Zendy

Kunimasa Miyazaki | Zendy; I. M. de Schepper | Zendy

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Dynamic structure factor of a dilute Lennard-Jones gas

Author(s) -

Kunimasa Miyazaki,

I. M. de Schepper

Publication year - 2001

Publication title -

physical review. e, statistical physics, plasmas, fluids, and related interdisciplinary topics

Language(s) - English

Resource type - Journals

eISSN - 1095-3787

pISSN - 1063-651X

DOI - 10.1103/physreve.63.060201

Subject(s) - structure factor , dynamic structure factor , physics , boltzmann equation , boltzmann constant , neutron , lennard jones potential , argon , neutron scattering , thermodynamics , statistical physics , molecular dynamics , atomic physics , inelastic neutron scattering , condensed matter physics , nuclear physics , quantum mechanics

We calculate the leading correction term in the density expansion of the dynamic structure factor for a Lennard-Jones fluid using the Boltzmann equation. The qualitative behavior is found to be very similar to the hard-sphere result reported by Kamgar-Parsi et al. [Phys. Rev. A 35, 4781 (1987)]. A comparison was made with the results from the neutron scattering experiment by Verkerk et al. [Phys. Rev. Lett. 67, 1262 (1991)] for dilute argon gases. Several possibilities to explain the discrepancies of the present results from the experiment are proposed.

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