– We argue that the chaotic temperature effect predicted in Ising spin glasses should be stronger when one considers continuous (XY, Heisenberg) kind of spins, due to bigger entropic fluctuations. We then discuss the behavior of 3d spin glasses using the Migdal-Kadanoff Renormalization Group for Ising and XY spins, where we show explicitly that the chaotic… (More)

Fig. 2 – Left: Domain wall free energy of the q-states model at T = 0.01 for different q and the 0.26 slope. In inset Tc(q) converges fastly to ≈ 0.47. Right: Interfacial entropy at T = 0.01, notice the non monotonic effect; convergence is reached for q > 40 . In inset the entropy exponent converges to ≈ 1.26 (entropy was computed using δT = 10−11).