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Glassy slowdown and replica-symmetry-breaking instantons

Author(s)
Adams, Allan; Anous, Tarek; Lee, Jaehoon; Yaida, Sho
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Abstract
Glass-forming liquids exhibit a dramatic dynamical slowdown as the temperature is lowered. This can be attributed to relaxation proceeding via large structural rearrangements whose characteristic size increases as the system cools. These cooperative rearrangements are well modeled by instantons in a replica effective field theory, with the size of the dominant instanton encoding the liquid's cavity point-to-set correlation length. Varying the parameters of the effective theory corresponds to varying the statistics of the underlying free-energy landscape. We demonstrate that, for a wide range of parameters, replica-symmetry-breaking instantons dominate. The detailed structure of the dominant instanton provides a rich window into point-to-set correlations and glassy dynamics.
Date issued
2015-03
URI
http://hdl.handle.net/1721.1/96374
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review E
Publisher
American Physical Society
Citation
Adams, Allan, Tarek Anous, Jaehoon Lee, and Sho Yaida. "Glassy slowdown and replica-symmetry-breaking instantons." Phys. Rev. E 91, 032148 (March 2015). © 2015 American Physical Society
Version: Final published version
ISSN
1539-3755
1550-2376

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