COMPETITION BETWEEN ENERGY AND PHASE RELAXATION IN ELECTRONIC CURVE CROSSING PROCESSES

被引:154
作者
JEAN, JM
FLEMING, GR
机构
[1] UNIV CHICAGO,DEPT CHEM,CHICAGO,IL 60637
[2] UNIV CHICAGO,JAMES FRANCK INST,CHICAGO,IL 60637
关键词
D O I
10.1063/1.469684
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
We present results from simulations of vibrational energy and phase relaxation and electronic curve crossing using a multilevel formulation of Redfield theory, which demonstrate the shortcomings of the optical Bloch approximation and the importance of coherence transfer processes in the relaxation dynamics of multilevel systems. Specifically we show that for a harmonic well, energy relaxation can occur with retention of vibrational phase, and that for sufficiently strong electronic coupling, the product of an electronic curve crossing process can be formed vibrationally coherent even when no coherence is present in the initially excited state. (C) 1995 American Institute of Physics.
引用
收藏
页码:2092 / 2101
页数:10
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