Low-Frequency and High-Frequency Moving Anharmonic Localized Modes in a One-Dimensional Lattice with Quartic Anharmonicity

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Author(s)

Abstract

The existence of two branches of moving anharmonic localized modes is shown fora one-dimensional (10) lattice w'ith hard quartic anharmonicity. By tlte use of a pairof exactly solvable model nonlinear lattice equations as a reference system, approx-imate analytical expressions for envelope functions, the eigenfrequencies and thevelocities of low- and high-frequently modes are obtained for eacla of envelope-kinklike modes and envelope-solitonlilce modes. Tlte approximate axxalytical resultsare tested by numerical experiments to e;how that these two branches of the modes arerobust against generation at initial stages of ripples, eventually preserving their ownprofiles as time evolves.

Journal

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 61(12), p4263-4266, 1992-12

    The Physical Society of Japan (JPS)

Cited by:  1

Codes

  • NII Article ID (NAID)
    110001969637
  • NII NACSIS-CAT ID (NCID)
    AA00704814
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    00319015
  • NDL Article ID
    3792246
  • NDL Source Classification
    MC11(理論物理学)
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z53-A404
  • Data Source
    CJPref  NDL  NII-ELS 
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