Distribution functions for action and related quantities. (Left) Probability distribution of the action in the FA model at T = 1, subsystem size , and tobs = 320 ≈ 3τ.(Inset) Probability distribution of number of kinks, (left and upper axes) and of number of excitations, (lower and right axes). (Right) but now for tobs = 1,280 ≈ 12τ. The straight line indicates the exponential tail (regime a; see text). (Inset) Coefficient μ at different T from simulation and theory for both the FA and East models. Statistical uncertainties from simulations are smaller than the symbols.