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(Seminar) Hierarchical Landscape of Hard Disk Glasses
06/20
2019
- Title (Seminar) Hierarchical Landscape of Hard Disk Glasses
- Speaker
- Date
- Venue
Abstract
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CAS Key Laboratory of Theoretical Physics | |||
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Institute of Theoretical Physics | |||
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Chinese Academy of Sciences | |||
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Seminar | |||
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Title 题目 |
Hierarchical Landscape of Hard Disk Glasses | ||
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Speaker 报告人 |
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Affiliation 所在单位 |
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Date 日期 |
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Venue 地点 |
ITP South (New) Building 6420 | ||
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Abstract 摘要 |
We numerically analyze the landscape governing the evolution of the vibrational dynamics of hard disk glasses as the density increases towards jamming. We find that the dynamics becomes slow, spatially correlated, and starts to display aging dynamics across an avoided Gardner transition, with a phenomenology that resembles three-dimensional observations. We carefully analyze the behavior of single glass samples, and find that the emergence of aging dynamics is controlled by the apparition of a complex organization of the landscape that splits into a remarkable hierarchy of minima as jamming is approached. Our results show that the mean-field prediction of a Gardner phase characterized by an ultrametric structure of the landscape provides a useful description of finite-dimensional systems, even when the Gardner transition is avoided. [Reference: https://journals.aps.org/prx/abstract/10.1103/PhysRevX.9.011049] | ||
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Contact Person 所内联系人 |
Hai-Jun Zhou | ||