A conventional approach to dynamic correlations in the Toda lattice |
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Authors: | S Diederich |
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Institution: | Institut für Theoretische Physik, Justus-Liebig-Universität Giessen, D-6300 Giessen, Fed. Rep. Germany |
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Abstract: | The spectral density associated with correlations of relative displacements is calculated in the Toda chain. Strong nonlinear motion activated already at low temperatures gives rise to a shoulder on the high-frequency side of the phonon peak. This secondary structure is a reminiscence of the soliton response obtained with a more refined untraditional approach. |
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