43 citations · 260 across the 27 of their papers we have counts for
28 papers
Long-ranged order and flow alignment in sheared atic liquid crystals
Luca Giomi, John Toner, Niladri Sarkar
We formulate a hydrodynamic theory of atic liquid crystals, namely two-dimensional anisotropic fluids endowed with generic fold rotational symmetry. Our approach, based on…
Hydrodynamic theory of atic liquid crystals
Luca Giomi, John Toner, Niladri Sarkar
We formulate a comprehensive hydrodynamic theory of two-dimensional liquid crystals with generic fold rotational symmetry, also known as atics, of which mematics an…
Hydrodynamic theory of flocking at a solid-liquid interface: long range order and giant number fluctuations
Niladri Sarkar, Abhik Basu, John Toner
We construct the hydrodynamic theory of coherent collective motion ("flocking") at a solid-liquid interface. The polar order parameter and concentration of a collection of "active"…
Swarming bottom feeders: Flocking at solid-liquid interfaces
Niladri Sarkar, Abhik Basu, John Toner
We present the hydrodynamic theory of coherent collective motion ("flocking") at a solid-liquid interface, and many of its predictions for experiment. We find that such systems are…
Topotaxis of active Brownian particles
Koen Schakenraad, Linda Ravazzano, Niladri Sarkar +3
Recent experimental studies have demonstrated that cellular motion can be directed by topographical gradients, such as those resulting from spatial variations in the features of a…
Fluid pumping and active flexoelectricity can promote lumen nucleation in cell assemblies
Charlie Duclut, Niladri Sarkar, Jacques Prost +1
We discuss the physical mechanisms that promote or suppress the nucleation of a fluid-filled lumen inside a cell assembly or a tissue. We discuss lumen formation in a continuum the…