Evidence of energy diffusion in pure anharmonic disordered chains
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We present results of large scale simulations on vibrations of anharmonic disordered chain. We find that anharmonic effects tend to counter the localisation process and lead to diffusion of the energy on the lattice. For the anharmonic ordered case the energy is concentrated in large peaks as the global energy spread linearly in time.
KeywordsVibrations Non-Linear Effects Localisation Diffusion
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