title: Filament-induced surface spiral turbulence in three-dimensional excitable media.
abstract: Filament-induced surface defect-mediated turbulence in bounded three-dimensional (3D) excitable media is investigated in the regime of negative line tension. In this regime turbulence arises due to unstable filaments associated with scroll waves and is purely a 3D phenomenon. It is shown that the statistical properties of the turbulent defect dynamics can be used to distinguish surface defect-mediated turbulence from its 2D analog. Mechanisms for the creation and annihilation of surface defects are discussed and Markov rate equations are employed to model the results.
authors.affiliation: Complexity Science Group, Department of Physics & Astronomy, University of Calgary, Calgary, Alberta T2N 1N4, Canada. davidsen@phas.ucalgary.ca
authors.forename: Jörn
authors.initials: J
authors.lastname: Davidsen
authors.forename: Meng
authors.initials: M
authors.lastname: Zhan
authors.forename: Raymond
authors.initials: R
authors.lastname: Kapral