Linear Response of One Dimensional Nonlinear System. II

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The linear response theory of the one dimensional nonlinear system, developed in I, is generalized to apply to a system with an arbitrary damping strength. In stead of the Smoluchowsky equation, the Fokker Planck equation is investigated. The transfer integral method is again applicable with a simple decoupling approximation. The dynamical structure factor for the φ4chain is found to be the sum of phonon peaks and a sharp central peak. As the damping strength reduces, the phonon peak becomes underdamped, while the structure of the cetatral peak is essentially the same as the strong damping case. The origin of the central peak is due to the response of the domain wall.

本文言語English
ページ(範囲)1247-1254
ページ数8
ジャーナルjournal of the physical society of japan
49
4
DOI
出版ステータスPublished - 1980 1 1
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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