74 citations · 282 across the 18 of their papers we have counts for
11 papers · 1 filter
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…
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…
Scaling and localization in multipole-conserving diffusion
Jung Hoon Han, Ethan Lake, Sunghan Ro
We study diffusion in systems of classical particles whose dynamics conserves the total center of mass. This conservation law leads to several interesting consequences. In finite s…
Target Searches of Interacting Brownian Particles
Sunghan Ro, Juyeon Yi, Yong Woon Kim
We study the target search of interacting Brownian particles in a finite domain, focusing on the effect of inter-particle interactions on the search time. We derive the integral eq…
Macroscopic Fluctuation Theory and Current Fluctuations in Active Lattice Gases
Tal Agranov, Sunghan Ro, Yariv Kafri +1
We study the current large deviations for a lattice model of interacting active particles displaying a motility-induced phase separation (MIPS). To do this, we first derive the exa…
Optimal Searcher Distribution for Parallel Random Target Searches
Sunghan Ro, Yong Woon Kim
We consider a problem of finding a target located in a finite -dimensional domain, using independent random walkers, when partial information on the target location is given…
Exact fluctuating hydrodynamics of active lattice gases -- Typical fluctuations
Tal Agranov, Sunghan Ro, Yariv Kafri +1
We extend recent results on the exact hydrodynamics of a system of diffusive active particles displaying a motility-induced phase separation to account for typical fluctuations of…
Disorder-Induced Long-Ranged Correlations in Scalar Active Matter
Sunghan Ro, Yariv Kafri, Mehran Kardar +1
We study the impact of a random quenched potentials and torques on scalar active matter. Microscopic simulations reveal that motility-induced phase separation is replaced in two-di…