Active regimes for particles on resource landscapes

We introduce an active matter model composed of sterically interacting particles which absorb resources from a substrate and move in response to resource gradients. For varied ratios of absorption rate to substrate recovery rate, we find a variety of phases including periodic waves, partial clustering, stochastic motion, and a frozen state. If passive particles are added, they can form crystalline clusters in an active fluid. This model could be implemented using colloidal systems on feedback landscapes and can provide a soft matter realization of excitable media and ecological systems.

• Publication year

  2021

• Venue

  Physical Review Research

• Publication date

  2021-08-20

• Fields of study

  Physics, Environmental Science

• Identifiers
  DOI 10.1103/PhysRevResearch.4.013061arXiv 2108.09359
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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