Microscopic energy flux in particle systems and nonlinear lattices

Takashi Shimada, Fumiko Ogushi, Satoshi Yukawa, Nobuyasu Ito

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    We study the distribution of the microscopic energy flux j which is carried by a single particle. It is observed in Lennard-Jones particle system that the distribution of the norm the energy flux Pn(j) has a broad peak in small j regime and a stretched-exponential decay for large j. The broad peak originates in the potential advection and energy transfer between particles. The stretched exponential tail is from the momentum energy advection.In nonlinear-lattice systems, all the flux components jK, jU, and jF show stretched exponential decay.

    Original languageEnglish
    Pages (from-to)100-106
    Number of pages7
    JournalProgress of Theoretical Physics Supplement
    Issue number178
    DOIs
    Publication statusPublished - 2009

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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