Dynamic symmetry-breaking in mutually annihilating fluids with selective interfaces. (21st August 2019)

• Record Type: Journal Article
• Authors: Succi, Sauro; Montessori, Andrea; Falcucci, Giacomo
• Is Part Of: Journal of statistical mechanics. (2019:Aug.)
• Publication Date: 2019-08-21
• Subjects: 16 -- 4; Statistical mechanics -- Periodicals; Mechanics -- Statistical methods -- Periodicals; 530.1305
• DOI: 10.1088/1742-5468/ab3459
• Languages: English
• ISSNs: 1742-5468

Abstract

Abstract: The selective entrapment of mutually annihilating species within a phase-changing carrier fluid is explored by both analytical and numerical means. The model takes full account of the dynamic heterogeneity which arises as a result of the coupling between hydrodynamic transport, dynamic phase-transitions and chemical reactions between the participating species, in the presence of a selective droplet interface. Special attention is paid to the dynamic symmetry breaking between the mass of the two species entrapped within the expanding droplet as a function of time. It is found that selective sources are much more effective symmetry breakers than selective diffusion. The present study may be of interest for a broad variety of advection-diffusion-reaction phenomena with selective fluid interfaces, including the problem of electroweak baryogenesis.