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Optical Absorption Spectra of Bipolarons

J. T. Devreese·S. N. Klimin·V. M. Fomin
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Abstract

The absorption of large bipolarons is investigated using the path-integral method. The response of a bipolaron to an external electromagnetic field is derived in the framework of the memory-function approach. The bipolaron optical absorption spectrum consists of a series of relatively narrow peaks. The peculiarities of the bipolaron optical absorption as a function of the frequency of the electromagnetic field may be attributed to the transitions involving relaxed excited states and scattering states of a bipolaron.

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J. T. Devreese, S. N. Klimin, V. M. Fomin. 2001-03-09. Optical Absorption Spectra of Bipolarons. https://doi.org/10.1103/physrevb.63.184307

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