3 papers
physics.flu-dyn2025
Finite-Inertia Corrections and Breakdown of Gor'kov Theory in Acoustic Levitation of Droplets
Hollis Williams
Acoustic levitation is widely used for contactless droplet manipulation, yet the standard Gor'kov description obtained by time averaging the acoustic field lacks a quantitative val…
cond-mat.soft2025
Geometry-controlled Onset of Inertial Drag in Granular Impact
Hollis Williams
The impact of solid intruders into granular media is commonly described by a combination of quasi-static resistance and an inertial drag force proportional to the square of the imp…
physics.ed-ph2025
A portable LED-based diamond magnetometer for outreach and teaching labs
Hollis Williams, Alex Newman, Stuart Graham +2
We present a compact, low-cost version of an NV center diamond magnetometer which replaces the standard green laser with a high-power LED. This modification improves safety, reduce…