This paper presents a discussion of thermodynamic properties of {α}-helix protein from the point of view of the statistical mechanics of a soliton on a one-dimensional chain. We prove that the Davydov solitons can satisfy the equation of motion of a φ⁴ chain. We calculate the critical temperature and coefficient of linear specific heat of an {α}-helix protein and the results suggest Davydov solitons may indeed be biologically relevant.
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Xiao et al. (1991) studied this question.
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