2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/18887We extend the standard droplet scaling theory for isothermal aging in spin glasses assuming that the effective stiffness constant of droplets as large as extended defects is vanishingly small. A novel dynamical order parameter and the associated dynamical susceptibility emerge. Breaking of the fluctuation dissipation theorem takes place at the dynamical order parameter well below the equilibrium Edwards-Anderson order parameter at which the time translational invariance is strongly broken. The scenario is examined numerically in a 4 dimensional EA Ising spin glass model.4 Pages, 2 figures, revised versionDisordered Systems and Neural NetworksStatistical Mechanicstext