Damage spreading and ferromagnetic order in the three-dimensional +/-J Edwards-Anderson spin glass model

M. L. RUBIO PUZZO; F. ROMÁ; S. BUSTINGORRY; P. M. GLEISER

EUROPHYSICS LETTERS

EPL ASSOCIATION

Año: 2010 vol. 91 p. 37008 - 37013

0295-5075

Using information of the ground-state topology we show that the damage spreading technique unveils ferromagnetic order in the three-dimensional +/-J Edwards-Anderson spin glass model. With spin-flipping dynamics damage spreads for temperatures larger than Tg , the glasstransition temperature. With spin-orienting dynamics and for temperatures in Tg < T < Td, damage spreads over a finite region of the system, composed of finite clusters of ferromagnetic character. Td is the spin-orienting damage critical temperature, which is of the same order as the critical temperature of the ferromagnetic Ising model, Tc . The present results allow for an interpretation within a single framework of known —and sometimes puzzling— results, giving anintuitive picture for growing order in spin glasses.