# Universal low-frequency vibrational modes in silica glasses

17 Mar 2020 Bonfanti Silvia Guerra Roberto Mondal Chandana Procaccia Itamar Zapperi Stefano

It was recently shown that different simple models of glass formers with binary interactions define a universality class in terms of the density of states of their quasi-localized low-frequency modes. Explicitly, once the hybridization with standard Debye (extended) modes is avoided, a number of such models exhibit a universal density of state, depending on the mode frequencies as $D(\omega) \sim \omega^4$... (read more)

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• SOFT CONDENSED MATTER
• DISORDERED SYSTEMS AND NEURAL NETWORKS
• MATERIALS SCIENCE