Role of topological defects in the two-stage melting and elastic behavior of active Brownian particles
Siddharth Paliwal, Marjolein Dijkstra
Abstract
This work investigates the non-equilibrium phase transitions in dense states of active Brownian particles . The authors study the role of topological defects, as described by the Kosterlitz-Thouless-Halperin-Nelson-Young theory of two-dimensional melting for systems in equilibrium, in phase transitions of active systems. A comparison of the defect structures and elastic constants with respect to those in equilibrium systems is performed which reveals the possibility of a significantly different mechanism at play at such a high degree of activity.
Topics & Concepts
Topological defectWork (physics)Phase transitionPhysicsBrownian motionPhase (matter)Condensed matter physicsDegree (music)Materials scienceConstant (computer programming)Statistical physicsBrownian dynamicsTopology (electrical circuits)Classical mechanicsNon-equilibrium thermodynamicsMechanism (biology)Thermodynamic equilibriumElasticity (physics)Crystallographic defectMicro and Nano RoboticsAdvanced Thermodynamics and Statistical MechanicsPickering emulsions and particle stabilization