# name
Studying Avalanches in the ground-state of the two-dimensional random field Ising model driven by an external field

# metadata.dc.description.abstract[].value
We study the exact ground state of the two-dimensional random-field Ising model as a function of both the external applied field B and the standard deviation ¿ of the Gaussian random-field distribution. The equilibrium evolution of the magnetization consists in a sequence of discrete jumps. These are very similar to the avalanche behavior found in the out-of-equilibrium version of the same model with local relaxation dynamics. We compare the statistical distributions of magnetization jumps and find that both exhibit power-law behavior for the same value of ¿. The corresponding exponents are compared.

# metadata.dc.source[].value
Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.subject.classification[].value
Transformacions de fase (Física estadística)

# metadata.dc.title[].value
Studying Avalanches in the ground-state of the two-dimensional random field Ising model driven by an external field