Imaging and Mapping of Quantum-Like Behavior in a Hydrodynamic System

A pilot-wave hydrodynamic system consists of a small droplet of silicone oil that is self-propelled across a vibrating bath of the same liquid. Bouncing vertical motion and "walking" horizontal motion of the droplet can be achieved with careful control over the frequency and amplitude of the oil bath oscillation. The observed “walking” motion is due to the interaction of the droplet with the waves that it generates as it bounces off of the vibrating liquid surface. This system provides a compelling macroscopic analog to the Bohmian pilot-wave interpretation of quantum mechanics. We present results from our hydrodynamic system, including efforts to observe single-particle interference, diffraction, and wave-guide behavior.