Dynamics of packed swarms: Time-displaced correlators of two-dimensional incompressible flocks.
basic_science · Level V
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- Record sourced from PubMed, PMID 38366498.
- Also identified by DOI 10.1103/PhysRevE.109.L012601.
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Abstract
We analytically calculate the scaling exponents of a two-dimensional KPZ-like system: coherently moving incompressible polar active fluids. Using three different renormalization group approximation schemes, we obtain values for the roughness exponent χ and anisotropy exponent ζ that are extremely near the known exact results. This implies our prediction for the previously unknown dynamic exponent z is likely to be quantitatively accurate.