Vibronic exciton matter sustained by negative U, exciton pairing and dispersive interactions: A possible clue to ball lightning

Jai Singh, M Georgiev

    Research output: Contribution to journalArticle

    Abstract

    A theory for the processes involved in the formation of vibronic self-trapped Frenkel exciton states in very soft condensed matter is presented. Such soft condensed matter can be found near the earth surface during wet seasons as a combination of gases and water vapour. The condensed system can be excited by thunderstorms to form Frenkel excitons, which subsequently relax to self-trapped, vibronic and paired exciton states by releasing the excess energy non-radiatively in the environment. The radiative recombination from such lowered excited energy state of Frenkel excitons may give rise to a red to yellow photoluminescence as observed in ball lightning. � 2006 Old City Publishing, Inc.
    Original languageEnglish
    Pages (from-to)255-262
    Number of pages8
    JournalNonlinear Optics Quantum Optics
    Volume35
    Issue number4
    Publication statusPublished - 2006

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