In a recent paper (Zhao et al., Phys Rev X, 2022, 12: 031,021), we reported experimental observations of “ultrastable” states in a shearjammed granular system subjected to smallamplitude cyclic shear. In such states, all the particle positions and contact forces are reproduced after each shear cycle so that a strobed image of the stresses and particle positions appears static. In the present work, we report further analyses of data from those experiments to characterize both global and local responses of ultrastable states within a shear cycle, not just the strobed dynamics. We find that ultrastable states follow a powerlaw relation between shear modulus and pressure with an exponent
 Award ID(s):
 2026834
 NSFPAR ID:
 10472051
 Publisher / Repository:
 Frontiers
 Date Published:
 Journal Name:
 Frontiers in Physics
 Volume:
 10
 ISSN:
 2296424X
 Format(s):
 Medium: X
 Sponsoring Org:
 National Science Foundation
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