TY - JOUR
T1 - Structural Measures as Guides to Ultrastable States in Overjammed Packings
AU - Kim, Sangwoo
AU - Hilgenfeldt, Sascha
N1 - Publisher Copyright:
© 2022 American Physical Society.
PY - 2022/10/14
Y1 - 2022/10/14
N2 - Jammed, disordered packings of given sets of particles possess a multitude of equilibrium states with different mechanical properties. Identifying and constructing desired states, e.g., of superior stability, is a complex task. Here, we show that in two-dimensional particle packings the energy of all metastable states (inherent structures) is reliably classified by simple scalar measures of local steric packing. These structural measures are insensitive to the particle interaction potential and so robust that they can be used to guide a modified swap algorithm that anneals polydisperse packings toward low-energy metastable states exceptionally fast. The low-energy states are extraordinarily stable against applied shear, so that the approach also efficiently identifies ultrastable packings.
AB - Jammed, disordered packings of given sets of particles possess a multitude of equilibrium states with different mechanical properties. Identifying and constructing desired states, e.g., of superior stability, is a complex task. Here, we show that in two-dimensional particle packings the energy of all metastable states (inherent structures) is reliably classified by simple scalar measures of local steric packing. These structural measures are insensitive to the particle interaction potential and so robust that they can be used to guide a modified swap algorithm that anneals polydisperse packings toward low-energy metastable states exceptionally fast. The low-energy states are extraordinarily stable against applied shear, so that the approach also efficiently identifies ultrastable packings.
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U2 - 10.1103/PhysRevLett.129.168001
DO - 10.1103/PhysRevLett.129.168001
M3 - Article
C2 - 36306772
AN - SCOPUS:85140238159
SN - 0031-9007
VL - 129
JO - Physical review letters
JF - Physical review letters
IS - 16
M1 - 168001
ER -