THE GEOMETRIC PHASE EFFECT SHOWS UP IN CHEMICAL-REACTIONS

被引：188

作者：

KUPPERMANN, A

WU, YSM

机构：

[1] Arthur Amos Noyes Laboratory of Chemical Physics, Division of Chemistry and Chemical Engineering1 1 Contribution No. 8751, California Institute of Technology, Pasadena

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 205卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(93)80015-H

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：

The persistent differences between the rotational state distribution measurements of Kliner, Adelman and Zare (J. Chem. Phys. 95 (1991) 1648) for the D + H-2 reaction and theory are shown to be almost entirely the result of the geometric phase effect. This effect is due to a conical intersection between the two lowest electronically adiabatic potential energy surfaces of this system. Using accurate quantum scattering calculations, we have identified it for the first time in a chemical reaction studied experimentally. Predictions of additional large dynamical effects are also made. This phase is apt to be important for many other systems displaying conical intersections.

引用

页码：577 / 586

页数：10

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