7 papers
Viscoelastic control of spatiotemporal order in bacterial active matter
Song Liu, Suraj Shankar, M. Cristina Marchetti +1
Active matter consists of units that generate mechanical work by consuming energy. Examples include living systems, such as assemblies of bacteria and biological tissues, biopolyme…
Emergence of dynamic vortex glasses in disordered polar active fluids
Amélie Chardac, Suraj Shankar, M. Cristina Marchetti +1
In equilibrium, disorder conspires with topological defects to redefine the ordered states of matter in systems as diverse as crystals, superconductors and liquid crystals. Far fro…
Shape and size changes of adherent elastic epithelia
Benjamin Loewe, Francesco Serafin, Suraj Shankar +2
Epithelial tissues play a fundamental role in various morphogenetic events during development and early embryogenesis. Although epithelial monolayers are often modeled as two-dimen…
Hydrodynamics of Active Defects: from order to chaos to defect ordering
Suraj Shankar, M. Cristina Marchetti
Topological defects play a prominent role in the physics of two-dimensional materials. When driven out of equilibrium in active nematics, disclinations can acquire spontaneous self…
Kirigami mechanics as stress relief by elastic charges
Michael Moshe, Edward Esposito, Suraj Shankar +4
We develop a geometric approach to understand the mechanics of perforated thin elastic sheets, using the method of strain-dependent image elastic charges. This technique recognizes…
Defect unbinding in active nematics
Suraj Shankar, Sriram Ramaswamy, M. Cristina Marchetti +1
We formulate the statistical dynamics of topological defects in the active nematic phase, formed in two dimensions by a collection of self-driven particles on a substrate. An impor…