TY - JOUR
T1 - Microscopic energy flux in particle systems and nonlinear lattices
AU - Shimada, Takashi
AU - Ogushi, Fumiko
AU - Yukawa, Satoshi
AU - Ito, Nobuyasu
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
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U2 - 10.1143/PTPS.178.100
DO - 10.1143/PTPS.178.100
M3 - Article
AN - SCOPUS:68049147531
SN - 0375-9687
SP - 100
EP - 106
JO - Progress of Theoretical Physics Supplement
JF - Progress of Theoretical Physics Supplement
IS - 178
ER -