Amorphous-amorphous transition and the two-step replica symmetry breaking phase

Abstract

The nature of polyamorphism and amorphous-to-amorphous transition is investigated by means of an exactly solvable model with quenched disorder, the spherical s+p multi-spin interaction model. The analysis is carried out in the framework of Replica Symmetry Breaking theory and leads to the identification of low temperature glass phases of different kinds. Besides the usual `one-step' solution, known to reproduce all basic properties of structural glasses, also a physically consistent `two-step' solution arises. More complicated phases are found as well, as temperature is further decreased, expressing a complex variety of metastable states structures for amorphous systems.

8 pages, 7 figures, longer version, new references added

References in corpus (2)

• Marginal States in Mean Field Glasses
• On Equilibrium Dynamics of Spin-Glass Systems

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• Stability of the Parisi Solution for the Sherrington-Kirkpatrick model near T=0
• Critical slowing down exponents in quenched disordered spin models for structural glasses: Random Orthogonal and related models
• A simple spin model for three steps relaxation and secondary proccesses in glass formers
• Static and dynamic glass-glass transitions: a mean-field study
• Dynamic message-passing approach for kinetic spin models with reversible dynamics