%0 Journal Article
%A Baity Jesi, Marco
%A Martín Mayor, Víctor
%A Parisi, G.
%A Pérez Gaviro, S.
%T Soft Modes, Localization, and Two-Level Systems in Spin Glasses
%D 2015
%@ 0031-9007
%U https://hdl.handle.net/20.500.14352/24341
%X 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.
%~