超音速振动子孤子及其在多肽中可能的存在
Supersonic vibron solitons and their possible existence in polypeptides.
作者信息
Takeno S
机构信息
Department of Information Systems, Faculty of Information Science, Osaka Institute of Technology, Hirakata, Osaka, 573-0171 Japan.
出版信息
J Biol Phys. 1999 Jun;24(2-4):185-99. doi: 10.1023/A:1005135412931.
Nonlinear interactions of vibrons with lattice solitons due to the soft cubic nonlinearity in a quasi-one-dimensional lattice yield supersonic vibron solitons. Their binding energy is larger than those of the conventional Davydov solitons and vibron solitons, and their propagation velocity is uniquely determined in contrast to the latter two. Examination of parameters in the model Hamiltonian for polypeptides leads to the result that the supersonic vibron solitons obtained here are more likely to be realizable than the Davydov solitons and the conventional vibron solitons in alpha-helical proteins.
由于准一维晶格中的软立方非线性，振子与晶格孤子之间的非线性相互作用产生了超音速振子孤子。它们的结合能比传统的达维多夫孤子和振子孤子的结合能更大，并且与后两者相比，它们的传播速度是唯一确定的。对多肽模型哈密顿量中的参数进行研究得出的结果是，此处获得的超音速振子孤子比α-螺旋蛋白质中的达维多夫孤子和传统振子孤子更有可能实现。
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