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    題名: Universality in Frenkel-Kontorova model with a cosh-type interaction
    作者: Chou, Chung-I;Ho, Choon-lin;Hu, Bambi
    貢獻者: 淡江大學物理學系
    日期: 1997-05
    上傳時間: 2013-07-09 15:17:56 (UTC+8)
    出版者: College Park: American Physical Society
    摘要: We have studied a generalized Frenkel-Kontorova model with a cosh-type interaction. A distinctive feature of the model is that the winding number of the last Kolmogorov-Arnold-Moser torus could deviate from the golden mean value for a very large degree of nonlinearity. The singularity spectrum and the generalized fractal dimension depend on the nonlinearity spectrum. However, the critical exponents of the gap in the phonon spectrum, the correlation length, and the Peierls-Nabarro barrier are found to be the same as those found in the standard and Toda Frenkel-Kontorova models. Our conclusions agree with previous findings.
    關聯: Physical Review E (Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics) 55(5), pp.5092-5101
    DOI: 10.1103/PhysRevE.55.5092
    顯示於類別:[物理學系暨研究所] 期刊論文

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