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

Amorphous-amorphous transition and the two-step replica symmetry breaking phase
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非晶-非晶转变和两步复制对称破缺阶段

DOI：
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发表时间：
2007
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通讯作者：
L. Leuzzi
L. Leuzzi
中科院分区：
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文献类型：
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作者：
A. Crisanti;L. Leuzzi

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通过具有淬灭无序的精确可解模型，即球形 s+p 多自旋相互作用模型，研究了多晶现象和非晶态到非晶态转变的性质。该分析是在复制对称破缺理论的框架下进行的，并导致了不同种类的低温玻璃相的识别。除了已知可以再现结构玻璃的所有基本特性的通常的一步解决方案之外，还出现了物理上一致的两步解决方案。随着温度进一步降低，还会发现更复杂的相，从而表现出非晶态系统的各种复杂的亚稳态结构。
The nature of polyamorphism and amorphous-to-amorphous transitions is investigated by means of an exactly solvable model with quenched disorder, the spherical s+p multispin 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-state structures for amorphous systems.