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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Universal spectrum of normal modes in low-temperature glasses
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Universal spectrum of normal modes in low-temperature glasses

机译:Universal spectrum of normal modes in low-temperature glasses

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摘要

We report an analytical study of the vibrational spectrum of the simplest model of jamming, the soft perceptron. We identify two distinct classes of soft modes. The first kind of modes are related to isostaticity and appear only in the close vicinity of the jamming transition. The second kind of modes instead are present everywhere in the glass phase and are related to the hierarchical structure of the potential energy landscape. Our results highlight the universality of the spectrum of normal modes in disordered systems, and open the way toward a detailed analytical understanding of the vibrational spectrum of low-temperature glasses.

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