Robust exponential decay for smooth Lorenz attractors

Let a Lorenz attractor be generated by a flow of regularity $C^{1+\alpha}$. The Lorenz-attractor conjecture. $C^{1+\alpha}$ Lorenz attractors have robust exponential decay of correlations. The preceding discussion explains that this would remove the regularity restriction used in the paper's construction of an open family with exponential decay; the conjecture remains open in the source.