English

Matching microscopic and macroscopic responses in glasses

Disordered Systems and Neural Networks 2017-04-26 v1 Statistical Mechanics

Abstract

We first reproduce on the Janus and Janus II computers a milestone experiment that measures the spin-glass coherence length through the lowering of free-energy barriers induced by the Zeeman effect. Secondly we determine the scaling behavior that allows a quantitative analysis of a new experiment reported in the companion Letter [S. Guchhait and R. Orbach, Phys. Rev. Lett. 118, 157203 (2017)]. The value of the coherence length estimated through the analysis of microscopic correlation functions turns out to be quantitatively consistent with its measurement through macroscopic response functions. Further, non-linear susceptibilities, recently measured in glass-forming liquids, scale as powers of the same microscopic length.

Keywords

Cite

@article{arxiv.1704.07777,
  title  = {Matching microscopic and macroscopic responses in glasses},
  author = {Janus Collaboration and M. Baity-Jesi and E. Calore and A. Cruz and L. A. Fernandez and J. M. Gil-Narvion and A. Gordillo-Guerrero and D. Iñiguez and A. Maiorano and E. Marinari and V. Martin-Mayor and J. Monforte-Garcia and A. Muñoz-Sudupe and D. Navarro and G. Parisi and S. Perez-Gaviro and F. Ricci-Tersenghi and J. J. Ruiz-Lorenzo and S. F. Schifano and B. Seoane and A. Tarancon and R. Tripiccione and D. Yllanes},
  journal= {arXiv preprint arXiv:1704.07777},
  year   = {2017}
}

Comments

6 pages, 4 figures

R2 v1 2026-06-22T19:27:27.946Z