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Oriented Active Solids
Ananyo Maitra, Sriram Ramaswamy
We present a complete analysis of the linearised dynamics of active solids with orientational order, taking into account a hitherto overlooked consequence of rotation invariance. O…
Origins and diagnostics of the nonequilibrium character of active systems
Lokrshi Prawar Dadhichi, Ananyo Maitra, Sriram Ramaswamy
We present in detail a Langevin formalism for constructing stochastic dynamical equations for active-matter systems coupled to a thermal bath. We apply the formalism to clarify iss…
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…
Kepler orbits of settling discs
Rahul Chajwa, Narayanan Menon, Sriram Ramaswamy
The collective dynamics of objects moving through a viscous fluid is complex and counterintuitive. A key to understanding the role of nontrivial particle shape in this complexity i…