%0 Journal Article %T Reply to Chakrabarty et al.: Particles move even in ideal glasses %+ Laboratoire Charles Coulomb (L2C) %A Ozawa, Misaki %A Kob, Walter %A Ikeda, Atsushi %A Miyazaki, Kunimasa %< avec comité de lecture %Z L2C:15-173 %@ 0027-8424 %J Proceedings of the National Academy of Sciences of the United States of America %I National Academy of Sciences %V 112 %N 35 %P E4821-E4822 %8 2015-09-01 %D 2015 %R 10.1073/pnas.1513323112 %Z Physics [physics]/Condensed Matter [cond-mat]/Statistical Mechanics [cond-mat.stat-mech]Journal articles %X In their letter, Chakrabarty et al. (1) point out that their data on the relaxation dynamics are inconsistent with the thermodynamic data presented in our paper (2). They argue that from their results and the predictions of the random first-order transition theory (3) one must conclude that our configurational entropy sc is “quantitatively not accurate.” In the following we will show that this conclusion is not necessarily valid.The main argument of Chakrabarty et al. (1) (figure 1, Left, of ref. 1) is that the self part of the intermediate scattering function Fs(k,t) decays to zero even in the glass phase (defined by sc=0) and that hence this phase … %G English %2 https://hal.science/hal-01208515/document %2 https://hal.science/hal-01208515/file/1509.03440.pdf %L hal-01208515 %U https://hal.science/hal-01208515 %~ CNRS %~ L2C %~ MIPS %~ UNIV-MONTPELLIER %~ UM-2015-2021