Critical-like slowdown in thermal soft-sphere glasses via energy minimization.
Phys Rev E
; 109(6): L062603, 2024 Jun.
Article
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| MEDLINE
| ID: mdl-39020966
ABSTRACT
Using hybrid molecular dynamics/SWAP Monte Carlo (MD/SMC) simulations, we show that while the terminal relaxation times τ(Ï) for FIRE energy minimization of soft-sphere glasses can decrease by orders of magnitude as sample equilibration proceeds and the jamming density Ï_{J} increases, they always scale as τ(Ï)â¼(Ï_{J}-Ï)^{-2}â¼[Z_{iso}-Z_{ms}(τ)]^{-2}, where Z_{iso}=2d and Z_{ms}(τ) is the average coordination number of particles satisfying a minimal local mechanical stability criterion (Z≥d+1) at the top of the final potential-energy-landscape (PEL) sub-basin the system encounters. This scaling allows us to collapse τ datasets that look very different when plotted as a function of Ï, and to address a closely related question how does the character of the PEL basins that dense thermal glasses most typically occupy evolve as the glasses age at constant Ï and T?
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Banco de datos:
MEDLINE
Idioma:
En
Revista:
Phys Rev E
Año:
2024
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Article
País de afiliación:
Estados Unidos