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)


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
Publication statusPublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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