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On the Propagation of a Perturbation in an Anharmonic System

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Abstract

We give a not trivial upper bound on the velocity of disturbances in an infinitely extended anharmonic system at thermal equilibrium. The proof is achieved by combining a control on the non equilibrium dynamics with an explicit use of the state invariance with respect to the time evolution.

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Authors and Affiliations

  1. Dipartimento di Matematica, Università di Roma P.le Aldo Moro 2, 00185, Roma, Italy

    Paolo Buttà, Emanuele Caglioti, Sara Di Ruzza & Carlo Marchioro

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  1. Paolo Buttà
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  2. Emanuele Caglioti
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  3. Sara Di Ruzza
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  4. Carlo Marchioro
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Correspondence to Paolo Buttà.

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Buttà, P., Caglioti, E., Ruzza, S.D. et al. On the Propagation of a Perturbation in an Anharmonic System. J Stat Phys 127, 313–325 (2007). https://doi.org/10.1007/s10955-007-9278-0

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  • DOI: https://doi.org/10.1007/s10955-007-9278-0

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