Generic features of the fluctuation dissipation relation in coarsening systems

dc.creatorCorberi, Federico
dc.creatorCastellano, Claudio
dc.creatorLippiello, Eugenio
dc.creatorZannetti, Marco
dc.date2003-11-03
dc.date.accessioned2026-07-07T02:54:34Z
dc.date.available2026-07-07T02:54:34Z
dc.descriptionThe integrated response function in phase-ordering systems with scalar, vector, conserved and non conserved order parameter is studied at various space dimensionalities. Assuming scaling of the aging contribution $χ_{ag} (t,t_w)= t_w ^{-a_χ} \hat χ(t/t_w)$ we obtain, by numerical simulations and analytical arguments, the phenomenological formula describing the dimensionality dependence of $a_χ$ in all cases considered. The primary result is that $a_χ$ vanishes continuously as $d$ approaches the lower critical dimensionality $d_L$. This implies that i) the existence of a non trivial fluctuation dissipation relation and ii) the failure of the connection between statics and dynamics are generic features of phase ordering at $d_L$.
dc.description6 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0311046
dc.identifierhttp://arxiv.org/abs/cond-mat/0311046
dc.identifierPhys. Rev. E 70, 017103 (2004)
dc.identifierdoi:10.1103/PhysRevE.70.017103
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22604
dc.subjectStatistical Mechanics
dc.titleGeneric features of the fluctuation dissipation relation in coarsening systems
dc.typetext

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