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DY: Fachverband Dynamik und Statistische Physik

DY 44: Pattern Formation I

DY 44.3: Vortrag

Mittwoch, 14. März 2018, 10:45–11:00, BH-N 334

Active Phase Separation vs Pattern Formation in Conserved Systems — •Lisa Rapp, Fabian Bergmann, and Walter Zimmermann — Theoretische Physik I, Universität Bayreuth, 95440 Bayreuth

Active phase separation takes place in non-equilibrium systems such as during cell polarization or in active colloidal particle suspensions. These systems are typically described by conserved order parameters. Surprisingly, however, these conserved systems can also show spatially periodic patterns. We formulate the criteria for this transition from phase separation to periodic patterns in terms of a generic Cahn-Hilliard model and a recent model for cell polarization. In addition, the nonlinear properties of spatially periodic patterns in conserved systems are characterized.