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Optical conductivity of a quasi-one-dimensional system with fluctuating order

Lorenz Bartosch
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Abstract

We describe a formally exact method to calculate the optical conductivity of a one-dimensional system with fluctuating order. For classical phase fluctuations we explicitly determine the optical conductivity by solving two coupled Fokker-Planck equations numerically. Our results differ considerably from perturbation theory and in contrast to Gaussian order parameter fluctuations show a strong dependence on the correlation length.

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Lorenz Bartosch. 2003-08-14. Optical conductivity of a quasi-one-dimensional system with fluctuating order. https://doi.org/10.1209/epl%2Fi2003-10042-2

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