Decay and slowing down of the multiquanta Davydov-like solitons in molecular chains
Zoran IvićTheoretical Physics Department-020, The "Vinca" Institute of Nuclear Sciences, Serbia, YugoslaviaŽeljko PržuljTheoretical Physics Department–020, The “Vinča” Institute of Nuclear Sciences, 11001 Belgrade, Serbia, YugoslaviaDragan KostićTheoretical Physics Department–020, The “Vinča” Institute of Nuclear Sciences, 11001 Belgrade, Serbia, Yugoslavia
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topicsjournal2000en
ABI
Аннотация
Dynamics and the stability of the multivibron solitons in molecular chains have been examined by means of the perturbation method based upon the inverse scattering transform. We demonstrate that due to the coupling with phonons the soliton radiates energy which causes its slowing down and gradual decay of its amplitude. It was shown that the soliton lifetime depends strongly on temperature and the values of the basic physical parameters of the system. On the basis of these results the possible role of the multivibron solitons in the intramolecular vibrational energy transfer has been critically assessed.
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