Relaxed plasma equilibria and entropy-related plasma self-organization   principles
  The concept of plasma relaxation as a constrained energy minimization is reviewed. Recent work by the authors on generalizing this approach to partially relaxed three-dimensional plasma systems in a way consistent with chaos theory is discussed, with a view to clarifying the thermodynamic aspects of the variational approach used. Other entropy-related approaches to finding long-time steady states of turbulent or chaotic plasma systems are also briefly reviewed. 
R. L. Dewar, M. J. Hole, M. McGann, R. Mills and S. R. Hudson