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Clutter Noise Induced Phase Segregation in Binary Active Polar Flocks

  • Pradeep Kumar Yadav
  • Ignacio Pagonabarraga
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Abstract

Macroscopic phase segregation in binary active mixtures can emerge solely from clutter noise: local, composition-dependent stochasticity, without repulsion or anti-alignment torques. Using an agent-based Vicsek model, we show that clutter noise alone destabilizes the mixed state, producing multi-stripe, co-moving band, and metastable counter-propagating morphologies, as well as a stable phase-segregated polar fluid. Our hydrodynamic theory shows that clutter noise suppresses local polar order and transport efficiency, consistent with the demixing observed in the agent-based model.

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Cite

BibTeXRIS
BibTeX
@misc{yadav2026clutter,
  title = {{Clutter Noise Induced Phase Segregation in Binary Active Polar Flocks}},
  author = {Pradeep Kumar Yadav and Ignacio Pagonabarraga},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.30008},
  eprint = {2610.30008},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.30008},
}
RIS
TY  - UNPB
TI  - Clutter Noise Induced Phase Segregation in Binary Active Polar Flocks
AU  - Pradeep Kumar Yadav
AU  - Ignacio Pagonabarraga
PY  - 2026
DA  - 2026/10/21
PB  - arXiv
DO  - 10.48550/arxiv.2610.30008
UR  - https://arxiv.org/abs/2610.30008
AB  - Macroscopic phase segregation in binary active mixtures can emerge solely from clutter noise: local, composition-dependent stochasticity, without repulsion or anti-alignment torques. Using an agent-based Vicsek model, we show that clutter noise alone destabilizes the mixed state, producing multi-stripe, co-moving band, and metastable counter-propagating morphologies, as well as a stable phase-segregated polar fluid. Our hydrodynamic theory shows that clutter noise suppresses local polar order and transport efficiency, consistent with the demixing observed in the agent-based model.
ER  -