Vortex structure of the tunneling flow in long-range electron transfer reactions

被引：28

作者：

Daizadeh, I ^{[1
]}

Guo, JX ^{[1
]}

Stuchebrukhov, A ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 110卷 / 18期

关键词：

D O I：

10.1063/1.478807

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ab initio calculations of tunneling current along a model 25-Angstrom-long polypeptide chain, and similar extended hydrocarbon molecular wires, show that in the tunneling flow there exist "topological defects,'' viz. the lines on which the wave function of the tunneling electron is zero, and the phase of the wave function is not defined. As a result, the flow of quantum mechanical probability experiences circular motions (vortices) around such nodal lines, and the overall structure of the flow becomes remarkably complex. The vortices in the tunneling flow are quantized, and are similar in their mathematical nature to those in a quantum superfluid liquid. (C) 1999 American Institute of Physics. [S0021-9606(99)70818-4].

引用

页码：8865 / 8868

页数：4

共 23 条

[1] ''Coulomb staircase'' at room temperature in a self-assembled molecular nanostructure [J].