6 papers
Diffusion with conserved marginal distributions and information theory in fracton hydrodynamics
Vaibhav Mohanty, Sunghan Ro
Diffusion with multipole-moment conservation gives rise to transport laws that generalize Fick's law and has attracted growing attention following experimental advances in strongly…
How Continuous Symmetry Stabilizes the Ordered Phase of Polar Flocks
Omer Granek, Hugues Chaté, Yariv Kafri +3
We study the stability of the ordered phase of compressible polar flocks against the nucleation of counter-propagating droplets, using a combination of analytical theory, microscop…
Exceptions to the Ratchet Principle in active and passive stochastic dynamics
Jessica Metzger, Sunghan Ro, Julien Tailleur
The "ratchet principle" asserts that non-equilibrium systems which violate parity symmetry generically exhibit steady-state currents. As recently shown, there are exceptions to thi…
Statistical mechanics of a cold tracer in a hot bath
Amer Al-Hiyasat, Sunghan Ro, Julien Tailleur
We study the dynamics of a zero-temperature particle interacting linearly with a bath of hot Brownian particles. Starting with the most general model of a linearly-coupled bath, we…
A Cold Tracer in a Hot Bath: In and Out of Equilibrium
Amer Al-Hiyasat, Sunghan Ro, Julien Tailleur
We study the dynamics of a zero-temperature overdamped tracer in a bath of Brownian particles. As the bath density is increased, numerical simulations show the tracer to transition…
Revisiting the Ratchet Principle: When Hidden Symmetries Prevent Steady Currents
Jessica Metzger, Sunghan Ro, Julien Tailleur
The "ratchet principle", which states that non-equilibrium systems violating parity symmetry generically exhibit steady-state currents, is one of the few generic results outside th…