Competition between energy and phase relaxation in electronic curve crossing processes

Autor:	John M. Jean, Graham R. Fleming
Rok vydání:	1995
Předmět:	Multilevel systems Vibrational energy Curve crossing Bloch equations Chemistry Excited state Vibrational energy relaxation General Physics and Astronomy Physical and Theoretical Chemistry Level crossing Atomic physics Coherence (physics)
Zdroj:	The Journal of Chemical Physics. 103:2092-2101
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.469684
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::65f64d815b9698501cf473f4c1080eea https://doi.org/10.1063/1.469684 Zobrazit plný text záznamu