2026-04-18T06:54:53Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/109202025-12-04T20:46:47Zcom_2072_1057col_2072_478822col_2072_478917

00925njm 22002777a 4500 dc Palassini, Matteo author Sales i Pardo, Marta author Ritort Farran, Fèlix author 2010-01-26T08:56:32Z 2010-01-26T08:56:32Z 2003 We present a numerical study of the order-parameter fluctuations for Ising spin glasses in three and four dimensions at very low temperatures and without an external field. Accurate measurements of two previously introduced parameters, A and G, show that the order parameter is not self-averaging, consistent with a zero-temperature thermal exponent value \theta' \simeq 0, and confirm the validity of the relation G=1/3 in the thermodynamic limit in the whole low-temperature phase, as predicted by stochastic stability arguments. Vidres de spin Temperatures baixes Propietats magnètiques Spin glasses Low temperatures Magnetic properties Order-parameter fluctuations in Ising spin glasses at low temperatures