Abstract
We consider the problem of selection of symmetry-breaking states as the system evolves through the critical point at a rate γ in the presence of fluctuations and a small biasing interaction g. We show that due to the dynamics in the vicinity of the critical point the system becomes extremely sensitive to g as γ becomes smaller. Such sensitivity is a general phenomenon valid for a large class of symmetry-breaking transitions. Under an approximation that is valid over a wide range of conditions, we obtain analytic expressions for the branch-selection probabilities and show their validity by comparison with numerical simulations.

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