## Abstract

The linear response theory of the one dimensional nonlinear systems is formulated in the limit of the overdamping. Transfer integral method is applied to investigate the dynamical structure factor S (k =0, ω). The equation of motion for the distribution function is reduced to a set of independent equations for normal modes. As an example the structure factor for the φ^{4} chain is calculated to be the sum of a very narrow central peak and a broad overdamped phonon peak. The origin of the former is supposed to be the domain wall motion.

Original language | English |
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Pages (from-to) | 699-705 |

Number of pages | 7 |

Journal | journal of the physical society of japan |

Volume | 47 |

Issue number | 3 |

DOIs | |

Publication status | Published - 1979 Jan 1 |

Externally published | Yes |

## ASJC Scopus subject areas

- Physics and Astronomy(all)

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