Does a Growing Static Length Scale Control the Glass Transition?
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Publication Date
2017-11-09Journal Title
Physical review letters
ISSN
0031-9007
Volume
119
Issue
19
Pages
195501
Language
eng
Type
Article
This Version
AM
Physical Medium
Print-Electronic
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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
Abstract
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.
Sponsorship
Royal Society (RP080053)
Identifiers
External DOI: https://doi.org/10.1103/physrevlett.119.195501
This record's URL: https://www.repository.cam.ac.uk/handle/1810/271085
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