Wednesday, July 10, 2013

1307.2361 (L. A. Fernandez et al.)

Temperature chaos in 3D Ising Spin Glasses is driven by rare events    [PDF]

L. A. Fernandez, V. Martin-Mayor, G. Parisi, B. Seoane
Temperature chaos has often been reported in literature as a rare-event driven phenomenon. However, this fact has always been ignored in the data analysis, thus erasing the signal of the chaotic behavior (still rare in the sizes achieved) and leading to an overall picture of a weak and gradual phenomenon. On the contrary, our analysis relies on a large-deviations functional that allows to discuss the size dependencies. In addition, we had at our disposal unprecedentedly large configurations equilibrated at low temperatures, thanks to the Janus computer. According to our results, when temperature chaos occurs its effects are strong and can be felt even at short distances.
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