The transition between synchronization and chaos for random Blaschke products

In this paper, we establish sufficient conditions for which a class of random circle maps, the so-called random Blaschke products, exhibits either synchronization or chaotic dynamics.

We also establish necessary and sufficient conditions for such systems to have a unique random fixed point attractor in the unit disc.

As an example, for a class of two map cocycles, we identify the random physical measures as a parameter is varied and investigate the critical value where the dynamics transitions from order to chaos.