Modeled by the Edwards-Anderson and Sherrington-Kirkpatrick models, FTP, name these stochastic magnetic systems named for a similarly disordered solid phase of matter.
The free energy in one of these systems diverges in the region beneath the de Almeida-Thouless line, which marks the location of replica symmetry breaking in one of these systems. One model of these systems that exhibits quenched disorder, and in which the coupling constants are random variables, is a generalization of the Ising model. These systems can also be modeled by adding random interactions to the XY model of ferromagnets. These systems derive their name from the fact that their constituent magnetic moments, as well as the positions of those moments, are distributed randomly through space, but do not change with time. Modeled by the Edwards-Anderson and Sherrington-Kirkpatrick models, FTP, name these stochastic magnetic systems named for a similarly disordered solid phase of matter.
The free energy in one of these systems diverges in the region beneath the de Almeida-Thouless line, which marks the location of replica symmetry breaking in one of these systems.
spin glasses