QUANTUM AND TEMPERATURE EFFECTS ON DAVYDOV SOLITON DYNAMICS - AVERAGED HAMILTONIAN METHOD

被引：54

作者：

FORNER, W

机构：

[1] Lab. of Nat. Found. for Cancer Res., Friedrich-Alexander-Univ., Erlangen

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 08期

关键词：

D O I：

10.1088/0953-8984/4/8/007

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The dynamics of Davydov solitons within the so-called (D1) state which allows quantum effects in the lattice are studied at physiological temperatures using Davydov's averaged Hamiltonian method. For this purpose the Euler-Lagrange method is used to obtain approximate equations of motion from a thermally averaged Hamiltonian. Within (D1) dynamics at T = 0 K and for parameter values appropriate for proteins, no solitons are found. It is demonstrated that temperature effects at 300 K shift the stability window for travelling solitons into regions of the parameter space which might be realistic for proteins.

引用

页码：1915 / 1923

页数：9

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