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Biexcitons as solitons in the one-dimensional molecular crystal

Биэкситоны как солитоны в одномерном молекулярном кристалле

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Il Nuovo Cimento B (1971-1996)

Summary

The paper is dedicated to the study of the criteria for the creation and existence of biexcitons in the soliton wave form in the molecular chains, in contact with a thermal bath. The calculations are based on the approach given by Davydov. The role of the bound-state function of the exciton pair as the weight function and the solitonic form of the centre-of-mass exciton pair was studied. We have confirmed the expected negative action of the temperature on the possibility of existence of the solitonic-biexciton solution.

Riassunto

Questo lavoro è dedicato allo studio dei criteri per la creazione e l'esistenza di bieccitoni nella forma d'onda solitonica nelle catene molecolari, in contatto con bagno termico. I calcoli sono basati sull'approccio fornito da Davydov. Sono stati studiati il ruolo della funzione di stato legato della coppia eccitonica come funzione di peso e la forma solitonica della coppia di eccitoni del centro di massa. È stata confermata l'azione negativa prevista della temperatura sulla possibilità di esistenza della soluzione con bieccitone solitonico.

Резюме

Эта статья посвящена исследованию критериев для образования и существования биэкситонов в виде солитонной волны в молекулярных цепочках, в контакте с тепловой баней. Бычисления основаны на подходе, предложенном Давыдовым. Исследуются роль функции связанного состояния для экситонной пары, как весовой функции, и, форма солитона для экситонной пары в системе центра масс. Мы подтверждаем предсказанное негативное действие температуры на возможность существования солитон-биэкситонного решения.

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Authors and Affiliations

  1. Faculty of Technical Sciences, Institute of Applied Fundamental Sciences, Novi Sad, Yugoslavia

    M. Satarić

  2. Laboratory of Theoretical Physics, Institute of Nuclear Sciences «Boris Kidrič», Belgrade, Yugoslavia

    G. Vujičić & R. Žakula

Authors
  1. M. Satarić
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  2. G. Vujičić
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  3. R. Žakula
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Additional information

This work is supported by the SIZN-SR Serbia.

Traduzione a cura della Redazione.

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Satarić, M., Vujičić, G. & Žakula, R. Biexcitons as solitons in the one-dimensional molecular crystal. Nuov Cim B 63, 709–723 (1981). https://doi.org/10.1007/BF02755109

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  • DOI: https://doi.org/10.1007/BF02755109

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