Nanopore Current Oscillations: Nonlinear Dynamics on the Nanoscale.
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.
†Department of Chemistry, University of California-Irvine Irvine, California 92697-2025, United States.
Brittany
B
Hyland
†Department of Chemistry, University of California-Irvine Irvine, California 92697-2025, United States.|‡Department of Physics and Astronomy, University of California-Irvine Irvine, California 92697-4575, United States.
Zuzanna S
ZS
Siwy
†Department of Chemistry, University of California-Irvine Irvine, California 92697-2025, United States.
Craig C
CC
Martens
Nanopores; ion current; noise; nonlinear dynamics; oscillations; precipitation