TY - JOUR
T1 - Stable, metastable and unstable states in the mean-field random-field Ising model at T = 0
AU - Rosinberg, Martin L.
AU - Tarjus, Gilles
AU - Perez-Reche, Francisco J.
PY - 2008/10
Y1 - 2008/10
N2 - We compute the probability distribution of the number of metastable states at a given applied field in the mean-field random-field Ising model at T = 0. Remarkably, there is a non-zero probability in the thermodynamic limit of observing metastable states on the so-called 'unstable' branch of the magnetization curve. This implies that the branch can be reached when the magnetization is controlled instead of the magnetic field, in contrast to the situation for the pure system. Available from 10.1088/1742-5468/2008/10/P10004
AB - We compute the probability distribution of the number of metastable states at a given applied field in the mean-field random-field Ising model at T = 0. Remarkably, there is a non-zero probability in the thermodynamic limit of observing metastable states on the so-called 'unstable' branch of the magnetization curve. This implies that the branch can be reached when the magnetization is controlled instead of the magnetic field, in contrast to the situation for the pure system. Available from 10.1088/1742-5468/2008/10/P10004
U2 - 10.1088/1742-5468/2008/10/P10004
DO - 10.1088/1742-5468/2008/10/P10004
M3 - Article
VL - 2008
JO - Journal of Statistical Mechanics: Theory and Experiment
JF - Journal of Statistical Mechanics: Theory and Experiment
SN - 1742-5468
M1 - P10004
ER -