Scanning the critical fluctuations -- application to the phenomenology of the two-dimensional XY-model --
We show how applying field conjugated to the order parameter, may act as a very precise probe to explore the probability distribution function of the order parameter. Using this `magnetic-field scanning' on large-scale numerical simulations of the critical 2D XY-model, we are able to discard the conjectured double-exponential form of the large-magnetization asymptote.
cond-mat.stat-mech↗