Time evolution of local observables after quenching to an integrable model

(2013)

Authors:

Jean-Sebastien Caux, Fabian HL Essler

Confined active nematic flow in cylindrical capillaries

Physical Review Letters 110:2 (2013)

Authors:

M Ravnik, JM Yeomans

Abstract:

We use numerical modeling to study the flow patterns of an active nematic confined in a cylindrical capillary, considering both planar and homeotropic boundary conditions. We find that active flow emerges not only along the capillary axis but also within the plane of the capillary, where radial vortices are formed. If topological defects are imposed by the boundary conditions, they act as local pumps driving the flow. At higher activity, we demonstrate escape of the active defects and flow into the third dimension, indicating the importance of dimensionality in active materials. We argue that measuring the magnitude of the active flow as a function of the capillary radius allows determination of a value for the activity coefficient. © 2013 American Physical Society.

Reply to Comment on 'Length Scale Dependence of DNA Mechanical Properties'

ArXiv 1301.1541 (2013)

Authors:

Agnes Noy, Ramin Golestanian

Abstract:

Reply to Comment on 'Length Scale Dependence of DNA Mechanical Properties'

Active matter

European Physical Journal E 36:6 (2013)

Authors:

R Golestanian, S Ramaswamy

Active matter.

The European physical journal. E, Soft matter 36:6 (2013) 67

Authors:

R Golestanian, S Ramaswamy