Anisotropy can make a moving active fluid membrane rough or crumpled
arXiv:2503.06245 · doi:10.1103/k2xn-fm52
Abstract
We present a hydrodynamic theory of anisotropic and inversion-asymmetric moving active permeable fluid membranes. These are described by an anisotropic Kardar-Parisi-Zhang equation. Depending upon the anisotropy parameters, the membrane is either effectively isotropic and algebraically rough with translational short, but orientational long-range order, or unstable, suggestive of membrane crumpling.
arXiv comment15 pages, 9 figures