On the spontaneous generation of three-dimensional magnetic nulls

Using the corresponding deformed magnetic field as an initial condition, the magnetofluid is subsequently evolved by dissipating its magnetic and kinetic energies through magnetic reconnection and viscous dissipation. In effect, a current-carrying null develops in the process. Second, another simulation is initiated with a modified Arnold-Beltrami-Childress (ABC) magnetic field which exerts a Lorentz force on the magnetofluid and has no nulls within the computational volume.

Astoundingly, allowed the magnetofluid to relax, nulls having mixed topological degrees are generated. The modified ABC field being chaotic, the spontaneous appearance of nulls establishes emergence of ordered magnetic structures from chaos-a trait of self-organized structures-explaining their ubiquity in naturally existing plasmas.