Delayed and Predictive Dynamics with Stochastic Time

Abstract

We present simple classical dynamical models to address the question of introducing a stochastic nature in a time variable. These models include noise in the time variable but not in the "space" variable, which is opposite to the normal description of stochastic dynamics. The notable feature is that these models can induce a "resonance" with varying noise strengths in the time variable. Thus, they provide a different mechanism for ``stochastic resonance'', which has been discussed within the normal context of stochastic dynamics. In a broader context, we expect these simple models and associated behaviours may serve as one of the starting points to construct and investigate an extended classical dynamical theory where both the space and time variables are taken as stochastic. We need to explore if such approaches can be further developed for both classical and quantum applications.