How to Optimize the Dynamical Responses of a Single Polymer to External Forces in Fluctuating Environments
Prof. Wokyung Sung (Pohang University, South Korea)

Motivated by recent advances in single molecule manipulations and also a basic understanding self-organized dynamics of DNA in constrained cellular environments, we study how flexible and semi-flexible polymer chains respond to the external fields which can vary in space and time. In particular I will focus on the novel noise-induced phenomena such as Stochastic Resonance and Resonance Activation and discuss how the dynamic responses can be optimized by the characteristics of the environment, field, and the polymer itself. The results obtained for a specific case of an external potential with (a) barrier(s) can be applied to optimization of biopolymer separation and flow within a fluidic channel.