Evidence for instantaneous resonant modes in dense fluids with repulsive Lennard-Jones force

Ten-Ming Wu*, Wen Jong Ma

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

In terms of instantaneous-normal-mode (INM) analysis and a newly defined measure for quasilocalization, we present the evidence for the resonant modes in a model fluid, in which the pair interaction is merely the repulsive portion of the Lennard-Jones potential. We name such a quasilocalized INM as an instantaneous resonant mode (IRM). By examining the potential energy profile beyond the INM approximation, we conclude that the IRMs occur in single-well potentials with strong enough anharmonicity.

Original languageEnglish
Pages (from-to)447-450
Number of pages4
JournalJournal of Chemical Physics
Volume110
Issue number1
DOIs
StatePublished - 1 Dec 1999

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