Suppression of hyperuniformity in hydrodynamic scalar active field theories

The coarsening dynamics at late times in phase-separating systems lead to universally hyperuniform patterns. This is well known for scalar field theories, such as the Cahn–Hilliard equation, but has also been shown for dry scalar active field theories. We demonstrate the role of hydrodynamic interactions in influencing hyperuniformity in a wet active system described by active model H. Our direct numerical simulations reveal that, while (passive) model H shows hyperuniformity in the coarsening regime, the interplay of activity and hydrodynamic interactions suppresses hyperuniformity in active model H, especially when the activity generates contractile stress in the fluid.

• Publication year

  2024

• Venue

  Journal of Physics: Condensed Matter

• Publication date

  2024-11-26

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1088/1361-648X/ada243arXiv 2411.17409PMID 39706156
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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