Nanopore Current Oscillations: Nonlinear Dynamics on the Nanoscale

作者：Hyland Brittany; Siwy Zuzanna S; Martens Craig C^*

来源：Journal of Physical Chemistry Letters, 2015, 6(10): 1800-1806.

DOI：10.1021/acs.jpclett.5b00520

In this Letter, we describe theoretical modeling of an experimentally realized nanoscale system that exhibits the general universal behavior of a nonlinear dynamical system. In particular, we consider the description of voltage-induced current fluctuations through a single nanopore from the perspective of nonlinear dynamics. We briefly review the experimental system and its behavior observed and then present a simple phenomenological nonlinear model that reproduces the qualitative behavior of the experimental data. The model consists of a two-dimensional deterministic nonlinear bistable oscillator experiencing both dissipation and random noise. The multidimensionality of the model and the interplay between deterministic and stochastic forces are both required to obtain a qualitatively accurate description of the physical system.

• 出版日期2015-5-21