Can classical active particles give wave-like statistics? Our new work shows how Lorenz-like internal dynamics can organize classical active particles into wave-like spatial statistics. #activematter #chaos #HQA journals.aps.org/pre/abstrac…

In a joint work led by Brendan Harding, and with Yvonne Stokes, we develop a unified Hamiltonian framework for how active particles move in channel flows. Particles undergo complex trajectories but remain confined within predictable regions. @PhysRevE doi.org/10.1103/m9ks-mq3d

Quincke rotation, a particle spinning in an electric field, exhibits complex dynamics and follows the Lorenz equations. In a recent work, we show that fluid memory reshapes this chaos and delays its onset. @AdityaSKhair1 @PhysRevFluids journals.aps.org/prfluids/ab…

In a recent work, we show that a suspension of (non-interacting) deformable, elongated particles in oscillatory shear flow can develop nematic order via a phase synchronization mechanism. The work is published in @PhysRevLett : journals.aps.org/prl/abstrac… @OxfordPhysics

New preprint - We show a Hamiltonian formulation for the motion of a simple active particle interacting with unidirectional steady flow. This provides insights into organization of the active particle trajectories as defined by a potential well. arxiv.org/abs/2506.11388

An active particle inspired from walking droplets can unpredictably cross a potential barrier. Using a minimal model, we show that the unpredictability lies in non-equilibrium features of a perturbed Lorenz system @PhysRevE journals.aps.org/pre/abstrac…

Attending the @APSphysics Global Physics Summit in Anaheim #APSSummit25. If you would like to learn about our recent work on active particles/mechanobiology, or just want to say hi, then I am presenting at the below sessions: summit.aps.org/events/MAR-T5… summit.aps.org/events/MAR-M0…

Using a simple model of a walking droplet in a harmonic potential, we show countably infinite quantized orbits, as opposed to a continous spectrum that one gets for a classical simple harmonic oscillator. See our open access paper below @PhysRevE : journals.aps.org/pre/abstrac…

Thanks for sharing, this looks very interesting! I will have a proper read of your paper.

Thanks @PhysRevE for highlighting our work :)

Thanks :)

Our below work in now published in @PhysRevE! We show that asymmetric limit cycles within Lorenz chaos can induce motion for an active particle in a direction opposite to an applied force. #chaos #activematter #walkingdroplet doi.org/10.1103/PhysRevE.110…

We are advertising a postdoc position at @UniofAdelaide to work on mathematical modelling of inertial microfluidic technologies. If this sounds interesting please see below link or if you know anyone who might be interested please help spread the word

However, the analogy to quantum mechanics is not completely appropriate since this system is classical. But the fascinating thing is that this active classical wave-particle system with memory can exhibit these features that are usually thought to be exclusive to quantum realm

The waves generated by the droplet are monochromatic so there is a characteristic wavelength. Because this wave guides the walking droplet, quantization emerges when a droplet is moving in confined regions or interacting with other droplets.