Fig. 5: Effective potential for the strongly damped case.

The potential \(V\left(d\right)\) of Eq. (26) with the two minima corresponding to symmetry-breaking steady states of the driven systems. The system undergoes a continuous symmetry breaking transition when driven above the threshold value hc = 2γ/ω1, i.e. when ϵ = h/hc − 1 > 0.