%0 Journal Article
%T Relaxation dynamics in the energy landscape of glass-forming liquids
%+ Laboratoire Charles Coulomb (L2C)
%+ École normale supérieure - Paris (ENS-PSL)
%+ The University of Tokyo (UTokyo)
%+ Institute of Mathematical Sciences [Chennai] (IMSc)
%+ University of Cambridge [UK] (CAM)
%A Nishikawa, Yoshihiko
%A Ozawa, Misaki
%A Ikeda, Atsushi
%A Chaudhuri, Pinaki
%A Berthier, Ludovic
%< avec comité de lecture
%Z L2C:22-027
%@ 2160-3308
%J Physical Review X
%I American Physical Society
%P 021001
%8 2022-04-11
%D 2022
%Z 2106.01755
%R 10.1103/PhysRevX.12.021001
%Z Physics [physics]/Condensed Matter [cond-mat]/Statistical Mechanics [cond-mat.stat-mech]
%Z Physics [physics]/Condensed Matter [cond-mat]/Disordered Systems and Neural Networks [cond-mat.dis-nn]
%Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]Journal articles
%X We numerically study the zero-temperature relaxation dynamics of several glass-forming models to their inherent structures, following quenches from equilibrium configurations sampled across a wide range of initial temperatures. In a mean-field Mari-Kurchan model, we find that relaxation changes from a power-law to an exponential decay below a well-defined temperature, consistent with recent findings in mean-field $p$-spin models. By contrast, for finite-dimensional systems, the relaxation is always algebraic, with a non-trivial universal exponent at high temperatures crossing over to a harmonic value at low temperatures. We demonstrate that this apparent evolution is controlled by a temperature-dependent population of localised glassy excitations. Our work unifies several recent lines of studies aiming at a detailed characterisation of the complex potential energy landscape of glass-formers, and challenges both mean-field and real space descriptions of glasses.
%G English
%2 https://hal.science/hal-03636595/document
%2 https://hal.science/hal-03636595/file/PhysRevX.12.021001-1.pdf
%L hal-03636595
%U https://hal.science/hal-03636595
%~ ENS-PARIS
%~ CNRS
%~ L2C
%~ PSL
%~ UNIV-MONTPELLIER
%~ ENS-PSL
%~ UM-2015-2021
%~ UM-EPE