Quantum dynamics through conical intersections: combining effective modes and quadratic couplings.
Quantum dynamics through conical intersections: combining effective modes and quadratic couplings.
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通过圆锥相交的量子动力学:结合有效模式和二次耦合
DOI:
10.1021/jp2068528
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
G. Halász
中科院分区:
文献类型:
--
作者:
A. Vibok;A. Csehi;E. Gindensperger;H. Köppel;G. Halász
We present a detailed study for the short-time dynamics through conical intersections in molecular systems related to the quadratic vibronic coupling (QVC) Hamiltonian [Müller, H.; Köppel, H.; Cederbaum, L. S.NewJ.Chem.1993,17, 7–29] and the effective-mode formalism [Cederbaum, L. S.; Gindensperger, E.; Burghardt, I.Phys.Rev.Lett.2005,94, 113003]. Our approach is based on splitting the nuclear degrees of freedom of the whole system into system modes and environment modes. It was found that only three-effective environmental modes together with the system’s modes are needed to describe the short-time dynamics of the complex system correctly. In addition, a detailed mathematical proof is given in the appendix to demonstrate that the exact cumulants are recovered up to the second order within the cumulant expansion of the autocorrelation function. The butatriene molecule is studied as an explicit showcase example to stress the viability of our proposed scheme and to compare with other systems.
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影响因子:
4.4
作者:
Chr. Cattarius;G. Worth;H. Meyer;L. Cederbaum
通讯作者:
L. Cederbaum
影响因子:
4.4
作者:
Hughes, Keith H.;Christ, Clara D.;Burghardt, Irene
通讯作者:
Burghardt, Irene
影响因子:
3.8
作者:
M. Baer;G. D. Billing
通讯作者:
G. D. Billing
DOI:
10.1063/1.3226343
发表时间:
2009-09
期刊:
The Journal of chemical physics
影响因子:
--
作者:
K. Hughes;Clara D. Christ;I. Burghardt
通讯作者:
K. Hughes;Clara D. Christ;I. Burghardt
影响因子:
2.3
作者:
KOPPEL, H
通讯作者:
KOPPEL, H