73 citations · 148 across the 8 of their papers we have counts for
8 papers
Natural Selection in the Wake of Catastrophe
Jesse Young Lin, Omer Granek, Joshua Sodicoff +3
Living organisms, from bacteria to humans, are more likely to survive if their traits enhance fitness. In populations well adapted to their environmental niches, natural selection…
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…
Lever rule violation and pressure imbalance in a driven granular system
Soumen Das, Anit Sane, Satyanu Bhadra +4
We study a monolayer of metal balls under periodic chiral driving in the horizontal plane. Energy dissipation occurs in this system via (i) inelastic collisions and (ii) frictional…
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…
Universal Correlations in Local Measurements Directly Probe Effective Diffusivity
Omer Granek
Measuring transport coefficients at the microscale remains challenging, often relying on indirect methods that require modeling and calibration. This article derives universal asym…
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…
The Anomalous Transport of Tracers in Active Baths
Omer Granek, Yariv Kafri, Julien Tailleur
We derive the long-time dynamics of a tracer immersed in a one-dimensional active bath. In contrast to previous studies, we find that the damping and noise correlations possess lon…
Bodies in an Interacting Active Fluid: Far-Field Influence of a Single Body and Interaction Between Two Bodies
Omer Granek, Yongjoo Baek, Yariv Kafri +1
Because active particles break time-reversal symmetry, an active fluid can sustain currents even without an external drive. We show that when a passive body is placed in a fluid of…