# Coarsening of topological defects in 2D polar active matter

Source: [Coarsening of topological defects in 2D polar active matter](<https://www.sota2.com/research/paper/68fa4c101e209131ce94a59e>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-25T08:37:06.246Z

Authors: Soumyadeep Mondal, Pankaj Popli, Sumantra Sarkar

Published: 2023-12-30T11:05:54.000Z

## Abstract

We numerically study the coarsening of topological defects in 2D polar active matter and make several interesting observations and predictions. (i) The long time state is characterized by nonzero density of defects, in stark contrast to theoretical expectations. (ii) The kinetics of defect coarsening shows power law decay to steady state, as opposed to exponential decay in thermal equilibrium. (iii) Observations (i) and (ii) together suggest emergent screening of topological charges due to activity. (iv) Nontrivial defect coarsening in the active model leads to nontrivial steady state patterns. We investigate, characterize, and validate these patterns and discuss their biological significance.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2401.00203>)

[PDF](<https://arxiv.org/pdf/2401.00203.pdf>)