3 papers
cond-mat.soft2025
Hydrodynamic Theory of Two-dimensional Chiral Malthusian Flocks
Leiming Chen, Chiu Fan Lee, John Toner
We study the hydrodynamic behavior of two-dimensional chiral dry Malthusian flocks; that is, chiral polar-ordered active matter with neither number nor momentum conservation. We sh…
cond-mat.soft2025
Response to the comment on The inconvenient truth about flocks by Chaté and Solon
Leiming Chen, Patrick Jentsch, Chiu Fan Lee +3
This is our response to the comment arXiv:2504.13683 posted by Chaté and Solon in reference to our preprint arXiv:2503.17064
cond-mat.soft2025
The inconvenient truth about flocks
Leiming Chen, Patrick Jentsch, Chiu Fan Lee +3
We reanalyze the hydrodynamic theory of "flocks" that is, polar ordered "dry" active fluids in two dimensions. For "Malthusian" flocks, in which birth and death cause the density t…