Journal ArticleDOI
Mixed-state random phase approximation
Yu Dmitrev,G. Peinel,A. Stoff +2 more
TLDR
In this article, a variant of the RPA formalism for a mixed state is proposed, which permits simultaneous coupled approximations for the states of the mixture, and within this approximation an evaluation of the second-order properties of the excited states is possible.About:
This article is published in Chemical Physics Letters.The article was published on 1981-04-15. It has received 3 citations till now. The article focuses on the topics: Born–Huang approximation & Random phase approximation.read more
Citations
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Optical Dynamics of Condensed Molecular Aggregates : An Accumulated Photon-Echo and Hole-Burning Study of the J-Aggregate
TL;DR: In this paper, it was shown that the temperature-activated optical dynamics of the excitonic J-bands can best be explained by invoking the presence of a pseudo-localized degree of freedom of ≈9 cm-1.
Journal ArticleDOI
Aggregation-enhanced raman scattering of a cyanine dye in homogeneous solution
TL;DR: In this paper, an enhanced Raman scattering occurs that is concomitant with the formation of aggregates, and for which resonance Raman and surface-enhanced Raman can be excluded.
Journal ArticleDOI
Theory and computational methods for studies of nonlinear phenomena in laser spectroscopy. I. General formalism
Yuri Yu. Dmitriev,Björn O. Roos +1 more
TL;DR: In this article, a general formalism for using steady-state wave functions for the study of nonlinear phenomena occurring in molecular systems interacting with intense electromagnetic fields is presented. But the steady-State approach has the advantage of being free from the secular divergencies and normalization terms which appear in a perturbation expansion of the time-dependent wave function.
References
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Journal ArticleDOI
Vibrational states of nuclei in the random phase approximation
TL;DR: In this paper, it was shown that it is always possible to choose an independent particle wave function which makes all collective modes stable in the random phase approximation of the Green's function.