SPATIOTEMPORAL EVOLUTION OF LOCAL TEMPERATURE EXCITATIONS IN DISORDERED HARMONIC-SYSTEMS

被引：4

作者：

WAGNER, M ^{[1
]}

LUTZE, A ^{[1
]}

VILIANI, G ^{[1
]}

FRIZZERA, W ^{[1
]}

PILLA, O ^{[1
]}

机构：

[1] UNIV TRENT,DIPARTIMENTO FIS,I-38050 TRENT,ITALY

来源：

PHYSICA B | 1993年 / 190卷 / 2-3期

关键词：

D O I：

10.1016/0921-4526(93)90477-N

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In strongly disordered condensed systems the Peierls-Boltzmann type of energy transport theory is not applicable. We present an alternative approach based on a local temperature excitation. The formalism is exemplified analytically and numerically for the Hamiltonian chain and for a chain with a random array of disturbed springs. Unexpected features are found, e.g. superdiffusion. Localization is verified also.

引用

页码：285 / 306

页数：22

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