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.
On the propagation of a perturbation in an anharmonic system / Butta', Paolo; Caglioti, Emanuele; DI RUZZA, Sara; Marchioro, Carlo. - In: JOURNAL OF STATISTICAL PHYSICS. - ISSN 0022-4715. - STAMPA. - 127:2(2007), pp. 313-325. [10.1007/s10955-007-9278-0]
On the propagation of a perturbation in an anharmonic system
BUTTA', Paolo;CAGLIOTI, Emanuele;DI RUZZA, SARA;MARCHIORO, Carlo
2007
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.File allegati a questo prodotto
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