Soft Modes, Localization, and Two-Level Systems in Spin Glasses.

Physical Review Letters
M Baity-JesiS Perez-Gaviro

Abstract

In the three-dimensional Heisenberg spin glass in a random field, we study the properties of the inherent structures that are obtained by an instantaneous cooling from infinite temperature. For a not too large field the density of states g(ω) develops localized soft plastic modes and reaches zero as ω(4) (for large fields a gap appears). When we perturb the system adding a force along the softest mode, one reaches very similar minima of the energy, separated by small barriers, that appear to be good candidates for classical two-level systems.

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Citations

Nov 1, 2017·Proceedings of the National Academy of Sciences of the United States of America·Hideyuki MizunoAtsushi Ikeda
Dec 15, 2016·Physical Review. E·Auditya SharmaM A Moore
Mar 20, 2018·Physical Review. E·Masanari ShimadaAtsushi Ikeda
Jul 18, 2018·Physical Review. E·Fernanda P C BenettiGabriele Sicuro
Apr 3, 2019·Physical Review. E·Wencheng JiMatthieu Wyart
Feb 26, 2020·Proceedings of the National Academy of Sciences of the United States of America·Corrado RainoneEdan Lerner
Jun 25, 2020·Physical Review. E·Matthew R CarboneMarco Baity-Jesi
Aug 18, 2018·Physical Review Letters·Geert KapteijnsEdan Lerner
Jun 27, 2019·Proceedings of the National Academy of Sciences of the United States of America·Silvio FranzAntonello Scardicchio
Sep 11, 2020·Physical Review Letters·Silvia BonfantiStefano Zapperi
Jul 30, 2016·Physical Review Letters·Edan LernerEran Bouchbinder
Aug 6, 2016·Physical Review Letters·Patrick CharbonneauFrancesco Zamponi
Jul 1, 2020·Physical Review Letters·Francesco Arceri, Eric I Corwin
Aug 15, 2018·Proceedings of the National Academy of Sciences of the United States of America·Luca AngelaniGiancarlo Ruocco
Jan 21, 2021·Physical Review. E·Wencheng JiMatthieu Wyart
Mar 13, 2021·Physical Review Letters·Prasenjit Das, Itamar Procaccia

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