### Recent Submissions

• #### Helical propulsion in shear-thinning fluids ﻿

(Cambridge University Press, 2017-02-01)
Swimming micro-organisms often have to propel themselves in complex non-Newtonian fluids. We carry out experiments with self-propelling helical swimmers driven by an externally rotating magnetic field in shear-thinning ...
• #### Can phoretic particles swim in two dimensions? ﻿

(American Physical Society, 2016-12-16)
Artificial phoretic particles swim using self-generated gradients in chemical species (self-diffusiophoresis) or charges and currents (self-electrophoresis). These particles can be used to study the physics of collective ...
• #### Worldline CPT and massless supermultiplets ﻿

(World Scientific Publishing, 2016-09-30)
The action for a massless particle in 4D Minkowski space–time has a worldline-time reversing symmetry corresponding to CPT invariance of the quantum theory. The analogous symmetry of the $\mathscr{N}$-extended superparticle ...
• #### Long-range interactions, wobbles, and phase defects in chains of model cilia ﻿

(American Physical Soceity, 2016-12-13)
Eukaryotic cilia and flagella are chemo-mechanical oscillators capable of generating long-range coordinated motions known as metachronal waves. Pair synchronization is a fundamental requirement for these collective dynamics, ...