Does a Growing Static Length Scale Control the Glass Transition?
Physical review letters
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Wyart, M., & Cates, M. (2017). Does a Growing Static Length Scale Control the Glass Transition?. Physical review letters, 119 (19), 195501. https://doi.org/10.1103/physrevlett.119.195501
Several theories of the glass transition propose that the structural relaxation time is controlled by a growing static length scale that is determined by the free energy landscape but not by the local dynamical rules governing its exploration. We argue, based on recent simulations using particle-radius-swap dynamics, that only a modest factor in the increase in relaxation time on approach to the glass transition may stem from the growth of a static length, with a vastly larger contribution attributable instead to a slowdown of local dynamics. This reinforces arguments that we base on the observed strong coupling of particle diffusion and density fluctuations in real glasses.
Royal Society (RP080053)
External DOI: https://doi.org/10.1103/physrevlett.119.195501
This record's URL: https://www.repository.cam.ac.uk/handle/1810/271085