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(Seminar) Hierarchical Landscape of Hard Disk Glasses
2019-06-20  【 】【打印】【关闭

CAS Key Laboratory of Theoretical Physics

Institute of Theoretical Physics

Chinese Academy of Sciences

Seminar

Title

题目

Hierarchical Landscape of Hard Disk Glasses

Speaker

报告人

Qinyi Liao (廖沁怡)

Affiliation

所在单位

University of Science and Technology of China, Hefei

Date

日期

2019年6月20日(星期四)11:00 - 12:00
 

Venue

地点

ITP South (New) Building 6420 

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]

Contact Person

所内联系人

Hai-Jun Zhou
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