We first reproduce on the Janus and Janus II computers a milestone experiment that measures the spinglass 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, nonlinear susceptibilities, recently measured in glass-forming liquids, scale as powers of the same microscopic length.
Matching Microscopic and Macroscopic Responses in Glasses / Baity Jesi, M.; Calore, E.; Cruz, A.; Fernandez, L. A.; Gil Narvion, J. M.; Gordillo Guerrero, A.; Iñiguez, D.; Maiorano, Andrea; Marinari, Vincenzo; Martin Mayor, V.; Monforte Garcia, J.; Muñoz Sudupe, A.; Navarro, D.; Parisi, Giorgio; Perez Gaviro, S.; RICCI TERSENGHI, Federico; Ruiz Lorenzo, J. J.; Schifano, S. F.; Seoane, B.; Tarancon, A.; Tripiccione, R.; Yllanes, D.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 118:15(2017), p. 157202. [10.1103/PhysRevLett.118.157202]
Matching Microscopic and Macroscopic Responses in Glasses
MAIORANO, Andrea;MARINARI, Vincenzo;PARISI, Giorgio;RICCI TERSENGHI, Federico;
2017
Abstract
We first reproduce on the Janus and Janus II computers a milestone experiment that measures the spinglass 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, nonlinear susceptibilities, recently measured in glass-forming liquids, scale as powers of the same microscopic length.| File | Dimensione | Formato | |
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