Open system control of dynamical transitions under the generalized Kruskal-Neishtadt-Henrard theorem (A6)

Diego M. Fieguth and James R. Anglin: 

Phys. Rev. E 107, 034209 (2023)

🔓 arXiv:2207.02768 (2022)

Useful dynamical processes often begin through barrier-crossing dynamical transitions; engineering system dynamics in order to make such transitions reliable is therefore an important task for biological or artificial microscopic machinery. Here, we first show by example that adding even a small amount of back-reaction to a control parameter, so that it responds to the system's evolution, can significantly increase the fraction of trajectories that cross a separatrix. We then explain how a post-adiabatic theorem due to Neishtadt can quantitatively describe this kind of enhancement without having to solve the equations of motion, allowing systematic understanding and design of a class of self-controlling dynamical systems.