Turing Instability in a Model with Two Interacting Ising Lines: Non-equilibrium Fluctuations

This is the second of two articles on the study of a particle system model that exhibits a Turing instability type effect. About the hydrodynamic equations obtained in Capanna and Soprano (Markov Proc Relat Fields 23(3):401–420, 2017), we find conditions under which Turing instability occurs around...

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Autores principales: Capanna, M., Soprano-Loto, N.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00224715_v174_n2_p365_Capanna
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Sumario:This is the second of two articles on the study of a particle system model that exhibits a Turing instability type effect. About the hydrodynamic equations obtained in Capanna and Soprano (Markov Proc Relat Fields 23(3):401–420, 2017), we find conditions under which Turing instability occurs around the zero equilibrium solution. In this instability regime: for long times at which the process is of infinitesimal order, we prove that the non-equilibrium fluctuations around the hydrodynamic limit are Gaussian; for times converging to the critical time defined as the one at which the process starts to be of finite order, we prove that the ±1-Fourier modes are uniformly away from zero. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.