Coherence quantum beats in two-dimensional electronic spectroscopy

被引：146

作者：

Cheng, Yuan-Chung ^{[1
,2
,3
]}

Fleming, Graham R. ^{[1
,2
,3
]}

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, QB3 Inst, Berkeley, CA 94720 USA

[3] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2008年 / 112卷 / 18期

关键词：

D O I：

10.1021/jp7107889

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 study the coherence quantum beats in two-dimensional (21)) electronic spectroscopy of a coupled dimer system using a theoretical method based on a time-nonlocal quantum master equation and a recently proposed scheme for the evaluation of the third-order photon echo polarization [Gelin, M. F.; Egorova, D.; Domeek, W. J. Chem. Phys. 2005, 123, 164112]. The simulations show that the amplitude and peak shape beating in the 2D spectra is a result of the interplay between the rephasing and non-rephasing contributions to the 2D signals and can be used to elucidate the coherence dynamics in a multichromophoric system. In addition, the results suggest that the rephasing and non-rephasing 2D spectra contain complementary information, and a study of both of them could provide more dynamical information from 2D electronic spectroscopy.

引用

页码：4254 / 4260

页数：7

共 30 条

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