Vibrational energy transfer in helices

被引：70

作者：

Leitner, DM ^{[1
]}

机构：

[1] Univ Nevada, Dept Chem, Reno, NV 89557 USA

[2] Univ Nevada, Chem Phys Program, Reno, NV 89557 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.87.188102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Rates of vibrational energy transfer in the five largest alpha helices of myoglobin are calculated. Energy transfer in helices occurs by anharmonic coupling of spatially overlapping localized normal modes in resonance, which is also the mechanism for energy transfer among localized modes of a glass. As a result, rates of energy transfer from higher-frequency modes of the helices typically vary little with temperature. Variation of the energy transfer rate with mode frequency is captured by a model of an anharmonic one-dimensional glass.

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页码：188102 / 1

页数：4

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