Numerical construction of the Aizenman-Wehr metastate

Autor: Billoire, A., Fernandez, L. A., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Parisi, G., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J.
Rok vydání: 2017
Předmět:
Zdroj: Phys. Rev. Lett. 119, 037203 (2017)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.119.037203
Popis: Chaotic size dependence makes it extremely difficult to take the thermodynamic limit in disordered systems. Instead, the metastate, which is a distribution over thermodynamic states, might have a smooth limit. So far, studies of the metastate have been mostly mathematical. We present a numerical construction of the metastate for the d=3 Ising spin glass. We work in equilibrium, below the critical temperature. Leveraging recent rigorous results, our numerical analysis gives evidence for a "dispersed" metastate, supported on many thermodynamic states.
Comment: 5 pages, 5 figures
Databáze: arXiv