Optical conductivity of a quasi-one-dimensional system with fluctuating order
arXiv:cond-mat/0308280 · doi:10.1209/epl/i2003-10042-2
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.
7 pages, 2 figures