Abstract
A real-space-renormalization method for the frequency dependent conductivity of the periodic approximants of the Fibonacci chain is developed. This scheme is based on the known 2×2 transfer matrices and additional 5×5 matrices which allow an efficient numerical evaluation of the Kubo formula. Numerical results are presented.
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Walther, D., Baltz, R.v. Frequency Dependent Conductivity of the Fibonacci-Chain. Journal of Low Temperature Physics 126, 1211–1220 (2002). https://doi.org/10.1023/A:1013831716744
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DOI: https://doi.org/10.1023/A:1013831716744