Elusive Spin-Glass Phase in the Random Field Ising Model

作者:Krzakala Florent*; Ricci Tersenghi Federico; Zdeborova Lenka
来源:Physical Review Letters, 2010, 104(20): 207208.
DOI:10.1103/PhysRevLett.104.207208

摘要

We show rigorously that the spin-glass susceptibility in the random field Ising model is always bounded by the ferromagnetic susceptibility, and therefore that no spin-glass phase can be present at equilibrium out of the ferromagnetic critical line. When the magnetization is, however, fixed to values smaller than the equilibrium value, a spin-glass phase can exist, as we show explicitly on the Bethe lattice.

  • 出版日期2010-5-21