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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

    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