Self-energy correction to dynamic polaron response

Dries Sels; Fons Brosens

doi:10.1103/physreve.89.042110

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arXiv · 1402.2777

Self-energy correction to dynamic polaron response

Dries Sels·Fons Brosens

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Abstract

We present the first order self-energy correction to the linear response coefficients of polaronic systems within the truncated phase space approach developed by the present authors. Due to the system-bath coupling, the external pertubation induces a retarded internal field which dynamically screens the external force. Whereas the effect on the mobility is of second order, dynamical properties such as the effective mass and the optical absorption are modified in first order. The Fröhlich polaron is used to illustrate the results.

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Dries Sels, Fons Brosens. 2014-02-12. Self-energy correction to dynamic polaron response. https://doi.org/10.1103/physreve.89.042110

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