Minimal coupling and attractors

Sloan, David (2014) Minimal coupling and attractors. Classical and Quantum Gravity, 31 (24): 245015. ISSN 0264-9381

Abstract

The effects of minimally coupling a gravity to matter on a flat Robertson–Walker geometry are explored. Particular attention is paid to the evolution of the symplectic structure and the Liouville measure it defines. We show that the rescaling freedom introduced by choice of fiducial cell leads to a symmetry between dynamical trajectories, which together with the Liouville measure provides a natural volume weighting explanation for the generic existence of attractors.