Bulk condensation by an active interface
Abstract
We present experiments, supported by mechanically detailed simulations, establishing bulk vapor-liquid condensation of a hard-bead fluid by a tiny population of orientable motile grains that self-assembles into a moving polarized monolayer. In a quasi-1D geometry two such layers, oppositely aligned, immobilize the condensed non-motile component. We account for our observations through a continuum theory with a naturally non-reciprocal Cahn-Hilliard structure, whose predicted trends as a function of packing fraction are consistent with our observations.
Cite
@article{arxiv.2403.18329,
title = {Bulk condensation by an active interface},
author = {Raushan Kant and Rahul Kumar Gupta and Harsh Soni and A K Sood and Sriram Ramaswamy},
journal= {arXiv preprint arXiv:2403.18329},
year = {2025}
}
Comments
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