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Coherent and incoherent exciton motion in a linear chain: Solution of the Haken-Strobl-model

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Zeitschrift für Physik B Condensed Matter

Abstract

The model of Haken and Strobl describing the coupled coherent and incoherent exciton motion in molecular crystals is solved for a linear chain with next-nearest-neighbour interaction. The well-known solutions of the two limiting cases are recovered. Our solution consists of two parts: one describing damped oscillations and the other describing pure damping. Introducing a new quantityA, called “degree of incoherence”, we may show that the relative size of the two parts of the solution depends onA in a well defined manner. Our solution can be immediately applied to the calculation of correlation functions for the following experiments: diffusion, optical absorption and emission, NMR and ESR.

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Authors and Affiliations

  1. Institut für theoretische Physik, Universität Stuttgart, Pfaffenwaldring 57, D-7000, Stuttgart 80 (Vaihingen), Federal Republic of Germany

    E. Schwarzer

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  1. E. Schwarzer
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Part of a PhD thesis, Universität Stuttgart (1974).

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Schwarzer, E. Coherent and incoherent exciton motion in a linear chain: Solution of the Haken-Strobl-model. Z Physik B 20, 185–193 (1975). https://doi.org/10.1007/BF01315689

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  • DOI: https://doi.org/10.1007/BF01315689

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