TITLE

Squeezed states in the trimer problem

AUTHOR(S)
Eiermann, H.; Wagner, M.
PUB. DATE
October 1996
SOURCE
Journal of Chemical Physics;10/22/1996, Vol. 105 Issue 16, p6713
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In the present work we study unconventional (‘‘squeezed’’) exciton–phonon states in the trimer model. These quasifree states, which do not undergo self-trapping, are characterized by a nearly vanishing lattice distortion and a stiffening in the phonon part as well as a large amount of kinetic energy in the excitonic subsystem. In contrast, the ‘‘conventional’’ exciton–phonon states are characterized by a strong lattice distortion and physically amount to a self-trapping of the exciton. In the trimer model a third type of exciton–phonon states have been found, which are a kind of ‘‘dimerized’’ states, where self-trapping has taken place only partially. The different types of states are analyzed and discussed. © 1996 American Institute of Physics.
ACCESSION #
7640089

 

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