Universality for Moving Stripes: A Hydrodynamic Theory of Polar Active Smectics
Universality for Moving Stripes: A Hydrodynamic Theory of Polar Active Smectics
We present a hydrodynamic theory of polar active smectics, for systems both with and without number conservation. For the latter, we find quasi long-ranged smectic order in d=2 and long-ranged smectic order in d=3. In d=2 there is a Kosterlitz-Thouless type phase transition from the smectic phase to the ordered …