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Abstract : In this work we study the remanent magnetization in various spin glass models after the removing of a strong magnetic field. We compare the behavior of the remanent magnetization of infinite-range models and of more realistic short-range models. In both cases we find a reasonable agreement with a simple phenomenological law at low temperatures, especially in the case of continuously distributed exchange interactions. The relaxation of the internal energy shows a more complex behavior.

Autor: Giorgio Parisi Félix Ritort



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