74 citations · 282 across the 18 of their papers we have counts for
18 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…
Inclusions, Boundaries and Disorder in Scalar Active Matter
Omer Granek, Yariv Kafri, Mehran Kardar +3
Active systems are driven out of equilibrium by exchanging energy and momentum with their environment. This endows them with anomalous mechanical properties that we review in this…
Metastability of Discrete-Symmetry Flocks
Brieuc Benvegnen, Omer Granek, Sunghan Ro +6
We study the stability of the ordered phase of flocking models with a scalar order parameter. Using both the active Ising model and a hydrodynamic description, we show that droplet…
Defect turbulence in a dense suspension of polar, active swimmers
Navdeep Rana, Rayan Chatterjee, Sunghan Ro +3
We study the effects of inertia in dense suspensions of polar swimmers. The hydrodynamic velocity field and the polar order parameter field describe the dynamics of the suspension.…
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…
Disordered boundaries destroy bulk phase separation in scalar active matter
Ydan Ben Dor, Sunghan Ro, Yariv Kafri +2
We show that disordered boundaries destroy bulk phase separation in scalar active systems in dimension . This is in strong contrast with the equilibrium case where boundar…
Play. Pause. Rewind. Measuring local entropy production and extractable work in active matter
Sunghan Ro, Buming Guo, Aaron Shih +5
Time-reversal symmetry breaking and entropy production are universal features of nonequilibrium phenomena. Despite its importance in the physics of active and living systems, the e…
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…
Chiral Separation by Flows: The Role of Flow Symmetry and Dimensionality
Sunghan Ro, Juyeon Yi, Yong Woon Kim
Separation of enantiomers by flows is a promising chiral resolution method using cost-effective microfluidics. Notwithstanding a number of experimental and numerical studies, a fun…